\uacf5\uad6c\uac15\uc758 \uc77c\ubc18\uc801\uc778 \ud2b9\uc131 | AISI \ub4f1\uae09 \ucc38\uc870<\/title>\n<meta name=\"description\" content=\"Wear resistance, toughness, hot hardness, working hardness, depth of hardening and grain size for 75 AISI tool steel grades, with heat-treatment notes and hardness data.\">\n<style>\n:root{\n --aobo-accent:#2563eb; --aobo-accent-dark:#1e1e2e; --aobo-blue:#0c56d0; --aobo-blue-dark:#073b91;\n --aobo-text:#333; --aobo-muted:#888; --aobo-border:#e5e7eb; --aobo-border-dark:#ddd;\n --aobo-stripe:#f7f7f9; --aobo-hover:#e8f0fe; --aobo-radius:8px; --aobo-radius-sm:6px;\n --aobo-orange:#f59e0b; --aobo-fill:#e9ecef;\n }*{box-sizing:border-box;}html{-webkit-text-size-adjust:100%;}body{margin:0;background:#fff;color:var(--aobo-text);\n font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,\"Helvetica Neue\",Arial,sans-serif;\n font-size:15px;line-height:1.6;}\/* Root scope \u2014 WordPress theme guard *\/ .ts-props{color:var(--aobo-text);background:transparent;padding:0;box-sizing:border-box;line-height:1.6;}.ts-props *{box-sizing:border-box;}.aobo-wrap{max-width:1160px;margin:0 auto;}\/* Hero *\/ .ts-hero{background:#fff;border:1px solid var(--aobo-border);border-radius:var(--aobo-radius);overflow:hidden;}.ts-hero-top{padding:1.5em;background:var(--aobo-stripe);border-bottom:1px solid var(--aobo-border);}.ts-kicker{display:inline-flex;align-items:center;gap:6px;color:var(--aobo-accent);background:var(--aobo-hover);\n border:1px solid var(--aobo-border);border-radius:var(--aobo-radius-sm);padding:4px 8px;\n font-size:.85em;font-weight:600;margin-bottom:.8em;}.ts-kicker span{width:6px;height:6px;background:var(--aobo-orange);border-radius:50%;display:inline-block;}.ts-hero h1{margin:0;font-size:2rem;line-height:1.3;color:var(--aobo-text);text-align:center;}.ts-hero-top p{margin:.6em auto 0;max-width:820px;font-size:.9em;line-height:1.6;color:var(--aobo-muted);text-align:center;}\/* Tool area *\/ .ts-tool-area{padding:1.5em;}\/* Legend *\/ .ts-legend{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:1em;}.ts-legend > span{display:inline-flex;align-items:center;gap:5px;font-size:.8em;color:var(--aobo-muted);\n background:var(--aobo-stripe);border:1px solid var(--aobo-border);border-radius:var(--aobo-radius-sm);\n padding:3px 8px;}.ts-legend b{color:var(--aobo-text);font-weight:600;}.ts-legend .ts-dot{width:9px;height:9px;border-radius:50%;background:var(--aobo-accent);display:inline-block;\n padding:0;border:0;gap:0;}\/* Table *\/ .ts-table-wrap{overflow-x:auto;border:1px solid var(--aobo-border);border-radius:var(--aobo-radius);\n background:#fff;box-shadow:0 1px 2px rgba(16,24,40,.04);}table.ts-table{border-collapse:collapse;width:100%;min-width:880px;font-size:.88em;}.ts-table thead th{position:sticky;top:0;z-index:2;background:var(--aobo-accent-dark);color:#fff;\n border-bottom:0;border-right:1px solid rgba(255,255,255,.1);text-align:center;padding:.6em .7em;\n font-size:.82em;font-weight:600;text-transform:none;letter-spacing:.02em;\n white-space:nowrap;}.ts-table thead th:last-child{border-right:0;}.ts-table tbody td{padding:.55em .7em;border-bottom:1px solid var(--aobo-border);text-align:center;\n vertical-align:middle;white-space:nowrap;}.ts-table tbody tr:nth-child(even){background:var(--aobo-stripe);}.ts-table tbody tr:hover{background:var(--aobo-hover);}.ts-table tbody tr.ts-group td{background:#e8ecf1;font-weight:700;font-size:.78em;letter-spacing:.05em;\n text-transform:uppercase;color:#3c4043;padding:.55em .7em;border-bottom:1px solid var(--aobo-border);\n text-align:left;}td.ts-grade{font-weight:700;font-size:.95em;text-align:left;white-space:nowrap;color:var(--aobo-text);}.ts-meter{display:inline-flex;align-items:center;gap:7px;}.ts-meter i{display:inline-block;width:44px;height:6px;border-radius:3px;background:var(--aobo-fill);overflow:hidden;}.ts-meter i b{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,#4d94ff,var(--aobo-accent));}.ts-meter span{font-size:.9em;font-weight:600;min-width:14px;}.ts-hr{font-variant-numeric:tabular-nums;font-weight:500;}.ts-num{font-variant-numeric:tabular-nums;}.ts-sup{font-size:9px;color:var(--aobo-accent);vertical-align:super;line-height:0;}\/* Footnotes *\/ .ts-notes-list{margin:1.2em 0 0;background:#fff;border:1px solid var(--aobo-border);\n border-left:3px solid var(--aobo-accent);border-radius:0 var(--aobo-radius) var(--aobo-radius) 0;\n padding:1em 1.2em 1em 2.2em;font-size:.82em;color:var(--aobo-muted);line-height:1.7;}.ts-notes-list li{margin-bottom:.3em;}.ts-notes-list sup{color:var(--aobo-accent);font-size:10px;}\/* Figure *\/ .ts-fig{margin:1.2em 0 0;background:#fff;border:1px solid var(--aobo-border);border-radius:var(--aobo-radius);padding:1em;}.ts-fig img{display:block;width:100%;height:auto;border-radius:6px;}.ts-fig figcaption{font-size:.8em;color:var(--aobo-muted);margin-top:.6em;line-height:1.6;}.ts-fig figcaption b{color:var(--aobo-text);}\/* Info cards *\/ .ts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px;margin-top:1.2em;}.ts-grid .ts-card{background:#fff;border:1px solid var(--aobo-border);border-left:3px solid var(--aobo-accent);\n border-radius:0 var(--aobo-radius) var(--aobo-radius) 0;padding:1em 1.2em;}.ts-grid h2{font-size:1em;margin:0 0 .4em;color:var(--aobo-text);}.ts-grid p{font-size:.82em;color:var(--aobo-muted);margin:0;line-height:1.7;}.ts-grid p b{color:var(--aobo-text);font-weight:600;}\/* Disclaimer *\/ .ts-disclaimer{margin-top:1.2em;background:#fff;border:1px solid var(--aobo-border);\n border-left:3px solid var(--aobo-accent);border-radius:0 var(--aobo-radius) var(--aobo-radius) 0;\n padding:1em 1.2em;}.ts-disclaimer h3{margin:0 0 .5em;font-size:.95em;color:var(--aobo-text);display:flex;align-items:center;gap:6px;}.ts-disclaimer h3::before{content:\"\\2139\";font-size:1em;color:var(--aobo-accent);}.ts-disclaimer p{margin:0 0 .5em;max-width:none;color:var(--aobo-muted);line-height:1.7;}.ts-disclaimer p:last-child{margin-bottom:0;}.ts-source{margin-top:.8em;color:var(--aobo-muted);font-size:.82em;line-height:1.58;}@media (max-width:860px){\n .ts-hero-top,.ts-tool-area{padding:1em;}.ts-hero h1{font-size:1.5rem;}} @media (max-width:520px){\n .ts-hero-top,.ts-tool-area{padding:.8em;}table.ts-table{font-size:.82em;}.ts-table thead th, .ts-table tbody td{padding:.4em .4em;}\n }\n.ts-rel{margin-top:1.2em;background:#fff;border:1px solid var(--aobo-border);\n border-left:3px solid var(--aobo-blue);border-radius:0 var(--aobo-radius) var(--aobo-radius) 0;padding:1em 1.2em;}\n .ts-rel h3{margin:0 0 .5em;font-size:.95em;color:var(--aobo-text);}\n .ts-rel p{margin:0;font-size:.85em;line-height:1.9;color:var(--aobo-muted);}\n .ts-rel p a{font-weight:600;}\n\n<\/style>\n<\/head>\n<body>\n<section class=\"aobo-ht-ref ts-props\"><div class=\"aobo-wrap\"><div class=\"ts-hero\"><div class=\"ts-hero-top\"><div class=\"ts-kicker\"><\/span>\uacf5\uad6c\uac15 \uc120\uc815 \ub370\uc774\ud130<\/div><h1>\uacf5\uad6c\uac15\uc758 \uc77c\ubc18\uc801\uc778 \ud2b9\uc131<\/h1>\ub0b4\ub9c8\ubaa8\uc131, \uc778\uc131, \uace0\uc628 \uacbd\ub3c4, \uc77c\ubc18 \uac00\uacf5 \uacbd\ub3c4, \uacbd\ud654 \uae4a\uc774, \uacb0\uc815\ub9bd \ud06c\uae30 \ubc0f \uacbd\ud654 \ud6c4 \uacbd\ub3c4\ub97c \ud3ec\ud568\ud558\ub294 \uc8fc\uc694 AISI \uacf5\uad6c\uac15 \ub4f1\uae09\uc758 \ucc38\uc870\ud45c\uc785\ub2c8\ub2e4. \ub4f1\uae09\uc740 1(\ub0ae\uc74c)\uc5d0\uc11c 9(\ub192\uc74c)\uae4c\uc9c0\uc758 \uc0c1\ub300\uc801 \ube44\uad50\uc774\uba70, \ud2b9\uc815 \uacf5\uad6c \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \ub4f1\uae09\uc744 \uc120\ud0dd\ud560 \ub54c \uc2e4\uc6a9\uc801\uc778 \ucd9c\ubc1c\uc810 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p><\/div><div class=\"ts-tool-area\"><div class=\"ts-legend\"> <\/span>1~9\uc810 \ud3c9\uac00<\/b> \uc0c1\ub300\uc801 \uac12: 1 = \ub0ae\uc74c, 9 = \ub192\uc74c<\/span> \uacbd\ud654 \uae4a\uc774:<\/b> S = shallow, M = medium, D = deep · section sizes in the <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-hardenability-chart\/\">hardenability chart<\/a><\/span> \uc785\uc790 \ud06c\uae30:<\/b> \uc170\ud37c\ub4dc \ud45c\uc900, \ucd5c\ub300 \uacbd\ub3c4 \uc0c1\ud0dc<\/span> \uc911\uc2ec \uacbd\ub3c4:<\/b> \uc9c0\ub984 25mm(1\uc778\uce58) \uc6d0\ud615<\/span><\/div>\n <div class=\"ts-table-wrap\"><table class=\"ts-table\"><thead><tr><th>\ub4f1\uae09<\/th><th>\uc785\ub2e4 (\ube44)<\/sup><\/th><th>\uac15\uc778\ud568 (\uae30\uc74c)<\/sup><\/th><th>\uace0\uc628 \uacbd\ub3c4<\/th><th>\uc791\uc5c5\uacbd\ub3c4, HRC<\/th><th>\uae4a\uc774 (\ub514)<\/sup><\/th><th>\uc785\uc790 \ud06c\uae30 (\ubaa9\uc790)<\/sup><\/th><th>\ud45c\uba74 HRC<\/th><th>\ucf54\uc5b4 HRC<\/th><\/tr><\/thead><tbody><tr class=\"ts-group\"><td colspan=\"9\">\ubab0\ub9ac\ube0c\ub374 \uace0\uc18d\uac15<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e01<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/m2-tool-steel\/\">\uc5e02<\/a><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M3, 1\ub4f1\uae09<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M3, 2\ub4f1\uae09<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e04<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">65~67\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e07<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e010<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e030<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e033<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e034<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/m35-tool-steel\/\">\uc5e035<\/a><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e036<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M41<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66~70\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/m42-tool-steel\/\">M42<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66~70\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M43<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66~70\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M44<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66~70\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M46<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201369<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M47<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66~70\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uc911\uc18d\uac15<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e050<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M52<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">62\u201364<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\ud145\uc2a4\ud150 \uace0\uc18d\uac15<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f01<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f02<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">65~67\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f04<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-hr\">63\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f05<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f06<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f08<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f015<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">64\u201368<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65~68\uc138<\/td><td class=\"ts-hr\">65~68\uc138<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\ud06c\ub86c \uc5f4\uac04 \uac00\uacf5\uc6a9 \uac15\uc7ac<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/h10-tool-steel\/\">H10<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">39\u201356<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">52\u201359<\/td><td class=\"ts-hr\">52\u201359<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/h11-tool-steel\/\">H11<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">38~55\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53~55\uc138<\/td><td class=\"ts-hr\">53~55\uc138<\/td><\/tr><tr><td class=\"ts-grade\">H12<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">38~55\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53~55\uc138<\/td><td class=\"ts-hr\">53~55\uc138<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/h13-tool-steel\/\">H13<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">40~53\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">51\u201354<\/td><td class=\"ts-hr\">51\u201354<\/td><\/tr><tr><td class=\"ts-grade\">H14<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">40~54\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53\u201357<\/td><td class=\"ts-hr\">53\u201356<\/td><\/tr><tr><td class=\"ts-grade\">H19<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">40~55\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">48~57\uc138<\/td><td class=\"ts-hr\">48~57\uc138<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\ud145\uc2a4\ud150 \uace0\uc628 \uc791\uc5c5\uc6a9 \uac15\uc7ac<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/h21-tool-steel\/\">H21<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">40~55\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">45~63\uc138<\/td><td class=\"ts-hr\">45~63\uc138<\/td><\/tr><tr><td class=\"ts-grade\">H22<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">36~54\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">48~56\uc138<\/td><td class=\"ts-hr\">48~56\uc138<\/td><\/tr><tr><td class=\"ts-grade\">H23<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">38~48\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7<\/td><td class=\"ts-hr\">34~40\uc138<\/td><td class=\"ts-hr\">34~40\uc138<\/td><\/tr><tr><td class=\"ts-grade\">H24<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">40~55\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">52\u201356<\/td><td class=\"ts-hr\">52\u201356<\/td><\/tr><tr><td class=\"ts-grade\">H25<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">35~45\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">33~46\uc138<\/td><td class=\"ts-hr\">33~46\uc138<\/td><\/tr><tr><td class=\"ts-grade\">H26<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">50~58\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">51\u201359<\/td><td class=\"ts-hr\">51\u201359<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\ubab0\ub9ac\ube0c\ub374 \uace0\uc628 \uc791\uc5c5\uc6a9 \uac15\uc7ac<\/td><\/tr><tr><td class=\"ts-grade\">H42<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">45~62\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">54\u201362<\/td><td class=\"ts-hr\">54\u201362<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uacf5\uae30 \uacbd\ud654\ud615, \uc911\ud569\uae08\ud615, \ub0c9\uac04 \uac00\uacf5\uc6a9 \uac15<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/a2-tool-steel\/\">A2<\/a><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">A3<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">58~63\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">A4<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">61\u201363<\/td><\/tr><tr><td class=\"ts-grade\">A5<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54~60\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">60~62\uc138<\/td><td class=\"ts-hr\">60~62\uc138<\/td><\/tr><tr><td class=\"ts-grade\">A6<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54~60\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">60~62\uc138<\/td><td class=\"ts-hr\">60~62\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\uc5d0\uc7747<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58~66\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">A8<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">48~57\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">60~62\uc138<\/td><td class=\"ts-hr\">60~62\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\uc5d0\uc7749<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">40~56\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">55~57\uc138<\/td><td class=\"ts-hr\">55~57\uc138<\/td><\/tr><tr><td class=\"ts-grade\">A10<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">55~62\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">60~63\uc138<\/td><td class=\"ts-hr\">60~63\uc138<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uace0\ud0c4\uc18c, \uace0\ud06c\ub86c, \ub0c9\uac04\uac00\uacf5\uac15<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/d2-tool-steel\/\">\ub5142<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">61\u201364<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/d3-tool-steel\/\">\ub5143<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ub5144<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ub5145<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">58~63\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">61\u201364<\/td><\/tr><tr><td class=\"ts-grade\">\ub5147<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58~66\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201368<\/td><td class=\"ts-hr\">64\u201368<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uc624\uc77c \uacbd\ud654 \ub0c9\uac04 \uac00\uacf5\uac15<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/o1-tool-steel\/\">\uc6241<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/o2-tool-steel\/\">\uc0b0\uc18c<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr><td class=\"ts-grade\">\uc6246<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">58~63\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">50~55\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\uc6247<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\ub0b4\ucda9\uaca9\uc131 \uac15\ucca0<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/s1-tool-steel\/\">S1<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">50~58\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">55~58\uc138<\/td><td class=\"ts-hr\">55~58\uc138<\/td><\/tr><tr><td class=\"ts-grade\">S2<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">50~60\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">56~60\uc138<\/td><\/tr><tr><td class=\"ts-grade\">S5<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">50~60\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">58~62\uc138<\/td><\/tr><tr><td class=\"ts-grade\">S6<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">50~56\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">56\u201358<\/td><td class=\"ts-hr\">56\u201358<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/s7-tool-steel\/\">S7<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">47\u201357<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">59\u201361<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uc800\ud569\uae08 \ud2b9\uc218\uc6a9\uac15<\/td><\/tr><tr><td class=\"ts-grade\">L2<\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">45~62\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">56\u201362<\/td><td class=\"ts-hr\">54\u201358<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/l6-tool-steel\/\">L6<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">45~62\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">58~63\uc138<\/td><td class=\"ts-hr\">58~62\uc138<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uc800\ud0c4\uc18c \uae08\ud615\uac15<\/td><\/tr><tr class=\"ts-group ts-sub\"><td colspan=\"9\">\ud5c8\ube0c\ud615 \ubc0f\/\ub610\ub294 \uce68\ud0c4 \ucc98\ub9ac\ub41c \uce90\ube44\ud2f0\uc6a9<\/td><\/tr><tr><td class=\"ts-grade\">\ud53c2 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (\uc5d0\uc774)<\/span><\/td><td class=\"ts-hr\">15~21\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\ud53c3 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201364 (\uc5d0\uc774)<\/span><\/td><td class=\"ts-hr\">15~21\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\ud53c4 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (\uc5d0\uc774)<\/span><\/td><td class=\"ts-hr\">33~35\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\ud53c5 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">50~64\uc138 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (\uc5d0\uc774)<\/span><\/td><td class=\"ts-hr\">20~25\uc138<\/td><\/tr><tr><td class=\"ts-grade\">P6 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58\u201361 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">60~62\uc138 (\uc5d0\uc774)<\/span><\/td><td class=\"ts-hr\">35~37\uc138<\/td><\/tr><tr class=\"ts-group ts-sub\"><td colspan=\"9\">\uac00\uacf5\ub41c \uce90\ube44\ud2f0\uc758 \uacbd\uc6b0<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/p20-tool-steel\/\">P20 (\uc774\uc790\ud615)<\/span><\/a><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">30~50\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">52\u201354<\/td><td class=\"ts-hr\">45~50\uc138<\/td><\/tr><tr><td class=\"ts-grade\">P21<\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">36~39\uc138 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">22~26\uc138<\/td><td class=\"ts-hr\">22~26\uc138<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uc218\ubd84\uacbd\ud654 \uacf5\uad6c\uac15<\/td><\/tr><tr><td class=\"ts-grade\">W1<\/td><td class=\"ts-num\"><\/b><\/i>2~4\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3~7\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58~65\uc138<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">38~43\uc138<\/td><\/tr><tr><td class=\"ts-grade\">W2<\/td><td class=\"ts-num\"><\/b><\/i>2~4\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3~7\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58~65\uc138<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">38~43\uc138<\/td><\/tr><tr><td class=\"ts-grade\">W5<\/td><td class=\"ts-num\"><\/b><\/i>3~4\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3~7\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58~65\uc138<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">38~43\uc138<\/td><\/tr><\/tbody><\/table><\/div><h3 style=\"font-size:1em;margin:1.2em 0 .3em;color:var(--aobo-text);\">\ucc38\uace0\ubb38\ud5cc \ubc0f \uc8fc\uc11d<\/h3><ol class=\"ts-notes-list\"><li>(\uc5d0\uc774)<\/sup> \ud3c9\uc810 \ubc94\uc704\ub294 1(\ub0ae\uc74c)\ubd80\ud130 9(\ub192\uc74c)\uae4c\uc9c0\uc785\ub2c8\ub2e4.<\/li><li>(\ube44)<\/sup> \ud0c4\uc18c \ud568\ub7c9\uc774 \uc99d\uac00\ud560\uc218\ub85d \ub0b4\ub9c8\ubaa8\uc131\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/li><li>(\uae30\uc74c)<\/sup> \ud0c4\uc18c \ud568\ub7c9\uacfc \uacbd\ud654 \uae4a\uc774\uac00 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \uc778\uc131\uc774 \uac10\uc18c\ud569\ub2c8\ub2e4.<\/li><li>(\ub514)<\/sup> S\ub294 \uc595\uc740 \uc218\uc2ec, M\uc740 \uc911\uac04 \uc218\uc2ec, D\ub294 \uae4a\uc740 \uc218\uc2ec\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/li><li>(\uc774\uc790\ud615)<\/sup> \uce68\ud0c4 \ucc98\ub9ac \ud6c4.<\/li><\/ol><figure class=\"ts-fig\"> <img src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\" alt=\"\uacf5\uad6c\uac15\uc758 \uace0\uc628 \uacbd\ub3c4 \ubc0f \ub0b4\ub9c8\ubaa8\uc131\uc5d0 \ub300\ud55c \uc778\uc131 \uadf8\ub798\ud504 (ASM \ud578\ub4dc\ubd81 \uadf8\ub9bc 6)\" decoding=\"async\" loading=\"lazy\"><figcaption>\uacf5\uad6c\uac15\uc758 \uc778\uc131\uc744 (a) \uace0\uc628 \uacbd\ub3c4 \ubc0f (b) \ub0b4\ub9c8\ubaa8\uc131\uc5d0 \ub300\ud574 \ub098\ud0c0\ub0b8 \uadf8\ub798\ud504\uc785\ub2c8\ub2e4. \ubc11\uc904\uc774 \uadf8\uc5b4\uc9c4 \uc885\ub958\ub294 \ud45c\uba74 \uacbd\ud654\uac00 \uc595\uc740 \uacf5\uad6c\uac15\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. (b)\uc758 \uc810\uc120 \uc0ac\uc774 \uc601\uc5ed\uc740 \ud3c9\uade0\uac12\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/figcaption><\/figure><div class=\"ts-grid\"><div class=\"ts-card\"><h2>\uacf5\uad6c\uac15\uc758 \ud0c4\uc131 \uacc4\uc218<\/h2>\uc2e4\uc9c8\uc801\uc73c\ub85c \ubaa8\ub4e0 \uc870\uac74\uc5d0\uc11c \ubaa8\ub4e0 \uacf5\uad6c\uac15\uc758 \ud0c4\uc131 \uacc4\uc218\ub294 \ub300\ub7b5 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. 210 GPa (30 \u00d7 106<\/sup> psi)<\/b> \uc2e4\uc628\uc5d0\uc11c. \uc57d 0.5\uae4c\uc9c0 \uade0\uc77c\ud558\uac8c \uac10\uc18c\ud569\ub2c8\ub2e4. 185 GPa (27 \u00d7 106<\/sup> psi)<\/b> 260\u00b0C(500\u00b0F)\uc5d0\uc11c \uadf8\ub9ac\uace0 \ub300\ub7b5 150 GPa (22 \u00d7 106<\/sup> psi)<\/b> 540\u00b0C(1000\u00b0F)\uc5d0\uc11c.<\/p><\/div><div class=\"ts-card\"><h2>\ub0b4\ub9c8\ubaa8\uc131<\/h2>Wear resistance increases with carbon content. At a given hardness, however, it may vary widely depending on the wear mechanism and heat treatment used. Steels with similar hardness can behave very differently under identical wear conditions. The grades that resist wear best are also the hardest to machine, and the <a href=\"\/ko\/tool-steel-machinability-rating-chart\/\">machinability rating chart<\/a> puts a number on that trade-off.<\/p><\/div><div class=\"ts-card\"><h2>\ub0b4\uad6c\uc131 \ubc0f \ud14c\uc2a4\ud2b8<\/h2>At maximum hardness, most tool steels are brittle, so tensile testing rarely gives reliable strength values. Compression, bending and torsion tests are more useful; torsion impact testing gives reproducible data on the effect of composition and heat treatment, particularly for drills and tools loaded in torsion. Where toughness and wear resistance pull in opposite directions, <a href=\"\/ko\/tool-steel-selection-by-application\/\">selection by application<\/a> is the faster route to a grade.<\/p><\/div><\/div><div class=\"ts-disclaimer\"><h3>\uacf5\uae09 \ubc94\uc704 \ubc0f \uae30\uc220 \ucc38\uc870 \ub178\ud2b8<\/h3>Aobo Steel supplies tool steel in round bar and plate form, in annealed condition. Hardening, quenching and tempering are performed by the customer’s heat-treatment facility. The <a href=\"\/ko\/tool-steel-heat-treatment-guide\/\">tool steel heat treatment guide<\/a> covers austenitizing temperatures, soak times and tempering windows for these grades.<\/p>\ubcf8 \ucc38\uace0\uc790\ub8cc\uc5d0 \uc81c\uc2dc\ub41c \ubb3c\uc131 \ub4f1\uae09 \ubc0f \uacbd\ub3c4 \ub370\uc774\ud130\ub294 ASM \ud578\ub4dc\ubd81 1\uad8c \ud45c 13\uc5d0\uc11c \ubc1c\ucdcc\ud55c \uc0c1\ub300\uc801 \ube44\uad50 \uc790\ub8cc\uc785\ub2c8\ub2e4. \uc2e4\uc81c \uc131\ub2a5\uc740 \uc5f4\ucc98\ub9ac, \ub2e8\uba74 \ud06c\uae30, \uacf5\uad6c \ud615\uc0c1 \ubc0f \uc0ac\uc6a9 \uc870\uac74\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucd5c\uc885 \ubb3c\uc131 \ubc0f \uc5f4\ucc98\ub9ac \uc808\ucc28\ub294 \ubc18\ub4dc\uc2dc \uc5f4\ucc98\ub9ac \uc5c5\uccb4\uc5d0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p><\/div>\n <div class=\"ts-rel\">\n <h3>\uad00\ub828 \ucc38\uc870 \ud398\uc774\uc9c0<\/h3>\n <a href=\"\/ko\/tool-steel-composition-chart\/\">\uacf5\uad6c\uac15 \uad6c\uc131\ud45c<\/a> \u00b7 <a href=\"\/ko\/tool-steel-hot-hardness-chart\/\">\uacf5\uad6c\uac15 \uace0\uc628 \uacbd\ub3c4\ud45c<\/a> \u00b7 <a href=\"\/ko\/tool-steel-hardening-tempering-chart\/\">\uacbd\ud654 \ubc0f \ud15c\ud37c\ub9c1 \uc628\ub3c4<\/a> \u00b7 <a href=\"\/ko\/tool-steel-machinability-rating-chart\/\">Machinability ratings<\/a> \u00b7 <a href=\"\/ko\/tool-steel-selection-by-application\/\">Selection by application<\/a> \u00b7 <a href=\"\/ko\/tool-steel-equivalent-grades\/\">Grade comparison and equivalents<\/a> \u00b7 <a href=\"\/ko\/tool-steel-hardness-conversion-calculator\/\">\uacbd\ub3c4 \ubcc0\ud658 \uacc4\uc0b0\uae30<\/a> \u00b7 <a href=\"\/ko\/tool-steel-heat-treatment-guide\/\">\uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/a> \u00b7 <a href=\"\/ko\/tool-steel-thermal-conductivity\/\">Tool steel thermal conductivity chart<\/a><\/p>\n <\/div>\n\n <\/div><\/div><\/div>\ucd9c\ucc98: ASM \ud578\ub4dc\ubd81, \uc81c1\uad8c - \ubb3c\uc131 \ubc0f \uc120\ud0dd: \ucca0, \uac15\ucca0 \ubc0f \uace0\uc131\ub2a5 \ud569\uae08, \ud45c 13 "\uacf5\uad6c\uac15\uc758 \uc77c\ubc18 \ubb3c\uc131"(\uce68\ud0c4 \ucc98\ub9ac \ud6c4 "e"\ub85c \ud45c\uc2dc\ub41c \ub4f1\uae09\uc758 \ub370\uc774\ud130). \ube44\uad50\ub97c \uc704\ud55c \ucc38\uace0 \ub370\uc774\ud130 - \ucd5c\uc885 \uc5f4\ucc98\ub9ac\ub294 \ud574\ub2f9 \ub4f1\uae09 \uacf5\uae09\uc5c5\uccb4\uc5d0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p><\/section>\n<\/body>\n<\/html>","protected":false},"excerpt":{"rendered":"General Properties of Tool Steels | AISI Grade Reference Tool Steel Selection Data General Properties of Tool Steels Reference table of the principal AISI tool steel grades, covering wear resistance, toughness, hot hardness, usual working hardness, depth of hardening, grain size and hardness after hardening. Ratings are relative comparisons on a 1 (low) to 9 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-17413","page","type-page","status-publish","hentry"],"yoast_head":"\n<title>Tool Steel Properties Chart: Hardness, Wear & Toughness for 75 Grades<\/title>\n<meta name=\"description\" content=\"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aobosteel.com\/ko\/tool-steel-properties-chart\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness\" \/>\n<meta property=\"og:description\" content=\"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/tool-steel-properties-chart\/\" \/>\n<meta property=\"og:site_name\" content=\"AoboSteel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-15T08:11:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data1\" content=\"6\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness\",\"datePublished\":\"2026-08-03T04:38:02+00:00\",\"dateModified\":\"2026-09-15T08:11:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/\"},\"wordCount\":1095,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\",\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/\",\"name\":\"Tool Steel Properties Chart: Hardness, Wear & Toughness for 75 Grades\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\",\"datePublished\":\"2026-08-03T04:38:02+00:00\",\"dateModified\":\"2026-09-15T08:11:57+00:00\",\"description\":\"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#breadcrumb\"},\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#primaryimage\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"name\":\"AoboSteel\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/aobosteel.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ko-KR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\",\"name\":\"AoboSteel\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"width\":1052,\"height\":592,\"caption\":\"AoboSteel\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\",\"name\":\"Evan\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"caption\":\"Evan\"},\"sameAs\":[\"http:\\\/\\\/www.aobosteel.com\",\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.instagram.com\\\/aobosteel\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\",\"https:\\\/\\\/x.com\\\/AobosteelEvan\",\"https:\\\/\\\/www.youtube.com\\\/@aobosteel\"],\"url\":\"https:\\\/\\\/aobosteel.com\\\/ko\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n","yoast_head_json":{"title":"Tool Steel Properties Chart: Hardness, Wear & Toughness for 75 Grades","description":"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/aobosteel.com\/ko\/tool-steel-properties-chart\/","og_locale":"ko_KR","og_type":"article","og_title":"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness","og_description":"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.","og_url":"https:\/\/aobosteel.com\/ko\/tool-steel-properties-chart\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-09-15T08:11:57+00:00","og_image":[{"url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"6\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness","datePublished":"2026-08-03T04:38:02+00:00","dateModified":"2026-09-15T08:11:57+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/"},"wordCount":1095,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"image":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png","inLanguage":"ko-KR"},{"@type":"WebPage","@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/","url":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/","name":"Tool Steel Properties Chart: Hardness, Wear & Toughness for 75 Grades","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#primaryimage"},"image":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png","datePublished":"2026-08-03T04:38:02+00:00","dateModified":"2026-09-15T08:11:57+00:00","description":"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#breadcrumb"},"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/tool-steel-properties-chart\/"]}]},{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#primaryimage","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png"},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness"}]},{"@type":"WebSite","@id":"https:\/\/aobosteel.com\/#website","url":"https:\/\/aobosteel.com\/","name":"\uc544\uc624\ubcf4\uc2a4\ud2f8","description":"","publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/aobosteel.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ko-KR"},{"@type":"Organization","@id":"https:\/\/aobosteel.com\/#organization","name":"\uc544\uc624\ubcf4\uc2a4\ud2f8","url":"https:\/\/aobosteel.com\/","logo":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","width":1052,"height":592,"caption":"AoboSteel"},"image":{"@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/"]},{"@type":"Person","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7","name":"\uc5d0\ubc18","image":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","caption":"Evan"},"sameAs":["http:\/\/www.aobosteel.com","https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.instagram.com\/aobosteel\/","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/","https:\/\/x.com\/AobosteelEvan","https:\/\/www.youtube.com\/@aobosteel"],"url":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"}]}},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"General Properties of Tool Steels | AISI Grade Reference Tool Steel Selection Data General Properties of Tool Steels Reference table of the principal AISI tool steel grades, covering wear resistance, toughness, hot hardness, usual working hardness, depth of hardening, grain size and hardness after hardening. Ratings are relative comparisons on a 1 (low) to 9…","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"General Properties of Tool Steels | AISI Grade Reference Tool Steel Selection Data General Properties of Tool Steels Reference table of the principal AISI tool steel grades, covering wear resistance, toughness, hot hardness, usual working hardness, depth of hardening, grain size and hardness after hardening. Ratings are relative comparisons on a 1 (low) to 9…","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/17413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/comments?post=17413"}],"version-history":[{"count":4,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/17413\/revisions"}],"predecessor-version":[{"id":18447,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/17413\/revisions\/18447"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=17413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":17413,"date":"2026-08-03T12:38:02","date_gmt":"2026-08-03T04:38:02","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=17413"},"modified":"2026-09-15T16:11:57","modified_gmt":"2026-09-15T08:11:57","slug":"tool-steel-properties-chart","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/tool-steel-properties-chart\/","title":{"rendered":"AISI \uacf5\uad6c\uac15 \ud2b9\uc131\ud45c: \ub9c8\ubaa8, \uc778\uc131 \ubc0f \uacbd\ub3c4"},"content":{"rendered":"\n\n\n\n\n\uacf5\uad6c\uac15\uc758 \uc77c\ubc18\uc801\uc778 \ud2b9\uc131 | AISI \ub4f1\uae09 \ucc38\uc870<\/title>\n<meta name=\"description\" content=\"Wear resistance, toughness, hot hardness, working hardness, depth of hardening and grain size for 75 AISI tool steel grades, with heat-treatment notes and hardness data.\">\n<style>\n:root{\n --aobo-accent:#2563eb; --aobo-accent-dark:#1e1e2e; --aobo-blue:#0c56d0; --aobo-blue-dark:#073b91;\n --aobo-text:#333; --aobo-muted:#888; --aobo-border:#e5e7eb; --aobo-border-dark:#ddd;\n --aobo-stripe:#f7f7f9; --aobo-hover:#e8f0fe; --aobo-radius:8px; --aobo-radius-sm:6px;\n --aobo-orange:#f59e0b; --aobo-fill:#e9ecef;\n }*{box-sizing:border-box;}html{-webkit-text-size-adjust:100%;}body{margin:0;background:#fff;color:var(--aobo-text);\n font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,\"Helvetica Neue\",Arial,sans-serif;\n font-size:15px;line-height:1.6;}\/* Root scope \u2014 WordPress theme guard *\/ .ts-props{color:var(--aobo-text);background:transparent;padding:0;box-sizing:border-box;line-height:1.6;}.ts-props *{box-sizing:border-box;}.aobo-wrap{max-width:1160px;margin:0 auto;}\/* Hero *\/ .ts-hero{background:#fff;border:1px solid var(--aobo-border);border-radius:var(--aobo-radius);overflow:hidden;}.ts-hero-top{padding:1.5em;background:var(--aobo-stripe);border-bottom:1px solid var(--aobo-border);}.ts-kicker{display:inline-flex;align-items:center;gap:6px;color:var(--aobo-accent);background:var(--aobo-hover);\n border:1px solid var(--aobo-border);border-radius:var(--aobo-radius-sm);padding:4px 8px;\n font-size:.85em;font-weight:600;margin-bottom:.8em;}.ts-kicker span{width:6px;height:6px;background:var(--aobo-orange);border-radius:50%;display:inline-block;}.ts-hero h1{margin:0;font-size:2rem;line-height:1.3;color:var(--aobo-text);text-align:center;}.ts-hero-top p{margin:.6em auto 0;max-width:820px;font-size:.9em;line-height:1.6;color:var(--aobo-muted);text-align:center;}\/* Tool area *\/ .ts-tool-area{padding:1.5em;}\/* Legend *\/ .ts-legend{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:1em;}.ts-legend > span{display:inline-flex;align-items:center;gap:5px;font-size:.8em;color:var(--aobo-muted);\n background:var(--aobo-stripe);border:1px solid var(--aobo-border);border-radius:var(--aobo-radius-sm);\n padding:3px 8px;}.ts-legend b{color:var(--aobo-text);font-weight:600;}.ts-legend .ts-dot{width:9px;height:9px;border-radius:50%;background:var(--aobo-accent);display:inline-block;\n padding:0;border:0;gap:0;}\/* Table *\/ .ts-table-wrap{overflow-x:auto;border:1px solid var(--aobo-border);border-radius:var(--aobo-radius);\n background:#fff;box-shadow:0 1px 2px rgba(16,24,40,.04);}table.ts-table{border-collapse:collapse;width:100%;min-width:880px;font-size:.88em;}.ts-table thead th{position:sticky;top:0;z-index:2;background:var(--aobo-accent-dark);color:#fff;\n border-bottom:0;border-right:1px solid rgba(255,255,255,.1);text-align:center;padding:.6em .7em;\n font-size:.82em;font-weight:600;text-transform:none;letter-spacing:.02em;\n white-space:nowrap;}.ts-table thead th:last-child{border-right:0;}.ts-table tbody td{padding:.55em .7em;border-bottom:1px solid var(--aobo-border);text-align:center;\n vertical-align:middle;white-space:nowrap;}.ts-table tbody tr:nth-child(even){background:var(--aobo-stripe);}.ts-table tbody tr:hover{background:var(--aobo-hover);}.ts-table tbody tr.ts-group td{background:#e8ecf1;font-weight:700;font-size:.78em;letter-spacing:.05em;\n text-transform:uppercase;color:#3c4043;padding:.55em .7em;border-bottom:1px solid var(--aobo-border);\n text-align:left;}td.ts-grade{font-weight:700;font-size:.95em;text-align:left;white-space:nowrap;color:var(--aobo-text);}.ts-meter{display:inline-flex;align-items:center;gap:7px;}.ts-meter i{display:inline-block;width:44px;height:6px;border-radius:3px;background:var(--aobo-fill);overflow:hidden;}.ts-meter i b{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,#4d94ff,var(--aobo-accent));}.ts-meter span{font-size:.9em;font-weight:600;min-width:14px;}.ts-hr{font-variant-numeric:tabular-nums;font-weight:500;}.ts-num{font-variant-numeric:tabular-nums;}.ts-sup{font-size:9px;color:var(--aobo-accent);vertical-align:super;line-height:0;}\/* Footnotes *\/ .ts-notes-list{margin:1.2em 0 0;background:#fff;border:1px solid var(--aobo-border);\n border-left:3px solid var(--aobo-accent);border-radius:0 var(--aobo-radius) var(--aobo-radius) 0;\n padding:1em 1.2em 1em 2.2em;font-size:.82em;color:var(--aobo-muted);line-height:1.7;}.ts-notes-list li{margin-bottom:.3em;}.ts-notes-list sup{color:var(--aobo-accent);font-size:10px;}\/* Figure *\/ .ts-fig{margin:1.2em 0 0;background:#fff;border:1px solid var(--aobo-border);border-radius:var(--aobo-radius);padding:1em;}.ts-fig img{display:block;width:100%;height:auto;border-radius:6px;}.ts-fig figcaption{font-size:.8em;color:var(--aobo-muted);margin-top:.6em;line-height:1.6;}.ts-fig figcaption b{color:var(--aobo-text);}\/* Info cards *\/ .ts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px;margin-top:1.2em;}.ts-grid .ts-card{background:#fff;border:1px solid var(--aobo-border);border-left:3px solid var(--aobo-accent);\n border-radius:0 var(--aobo-radius) var(--aobo-radius) 0;padding:1em 1.2em;}.ts-grid h2{font-size:1em;margin:0 0 .4em;color:var(--aobo-text);}.ts-grid p{font-size:.82em;color:var(--aobo-muted);margin:0;line-height:1.7;}.ts-grid p b{color:var(--aobo-text);font-weight:600;}\/* Disclaimer *\/ .ts-disclaimer{margin-top:1.2em;background:#fff;border:1px solid var(--aobo-border);\n border-left:3px solid var(--aobo-accent);border-radius:0 var(--aobo-radius) var(--aobo-radius) 0;\n padding:1em 1.2em;}.ts-disclaimer h3{margin:0 0 .5em;font-size:.95em;color:var(--aobo-text);display:flex;align-items:center;gap:6px;}.ts-disclaimer h3::before{content:\"\\2139\";font-size:1em;color:var(--aobo-accent);}.ts-disclaimer p{margin:0 0 .5em;max-width:none;color:var(--aobo-muted);line-height:1.7;}.ts-disclaimer p:last-child{margin-bottom:0;}.ts-source{margin-top:.8em;color:var(--aobo-muted);font-size:.82em;line-height:1.58;}@media (max-width:860px){\n .ts-hero-top,.ts-tool-area{padding:1em;}.ts-hero h1{font-size:1.5rem;}} @media (max-width:520px){\n .ts-hero-top,.ts-tool-area{padding:.8em;}table.ts-table{font-size:.82em;}.ts-table thead th, .ts-table tbody td{padding:.4em .4em;}\n }\n.ts-rel{margin-top:1.2em;background:#fff;border:1px solid var(--aobo-border);\n border-left:3px solid var(--aobo-blue);border-radius:0 var(--aobo-radius) var(--aobo-radius) 0;padding:1em 1.2em;}\n .ts-rel h3{margin:0 0 .5em;font-size:.95em;color:var(--aobo-text);}\n .ts-rel p{margin:0;font-size:.85em;line-height:1.9;color:var(--aobo-muted);}\n .ts-rel p a{font-weight:600;}\n\n<\/style>\n<\/head>\n<body>\n<section class=\"aobo-ht-ref ts-props\"><div class=\"aobo-wrap\"><div class=\"ts-hero\"><div class=\"ts-hero-top\"><div class=\"ts-kicker\"><\/span>\uacf5\uad6c\uac15 \uc120\uc815 \ub370\uc774\ud130<\/div><h1>\uacf5\uad6c\uac15\uc758 \uc77c\ubc18\uc801\uc778 \ud2b9\uc131<\/h1>\ub0b4\ub9c8\ubaa8\uc131, \uc778\uc131, \uace0\uc628 \uacbd\ub3c4, \uc77c\ubc18 \uac00\uacf5 \uacbd\ub3c4, \uacbd\ud654 \uae4a\uc774, \uacb0\uc815\ub9bd \ud06c\uae30 \ubc0f \uacbd\ud654 \ud6c4 \uacbd\ub3c4\ub97c \ud3ec\ud568\ud558\ub294 \uc8fc\uc694 AISI \uacf5\uad6c\uac15 \ub4f1\uae09\uc758 \ucc38\uc870\ud45c\uc785\ub2c8\ub2e4. \ub4f1\uae09\uc740 1(\ub0ae\uc74c)\uc5d0\uc11c 9(\ub192\uc74c)\uae4c\uc9c0\uc758 \uc0c1\ub300\uc801 \ube44\uad50\uc774\uba70, \ud2b9\uc815 \uacf5\uad6c \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \ub4f1\uae09\uc744 \uc120\ud0dd\ud560 \ub54c \uc2e4\uc6a9\uc801\uc778 \ucd9c\ubc1c\uc810 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p><\/div><div class=\"ts-tool-area\"><div class=\"ts-legend\"> <\/span>1~9\uc810 \ud3c9\uac00<\/b> \uc0c1\ub300\uc801 \uac12: 1 = \ub0ae\uc74c, 9 = \ub192\uc74c<\/span> \uacbd\ud654 \uae4a\uc774:<\/b> S = shallow, M = medium, D = deep · section sizes in the <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-hardenability-chart\/\">hardenability chart<\/a><\/span> \uc785\uc790 \ud06c\uae30:<\/b> \uc170\ud37c\ub4dc \ud45c\uc900, \ucd5c\ub300 \uacbd\ub3c4 \uc0c1\ud0dc<\/span> \uc911\uc2ec \uacbd\ub3c4:<\/b> \uc9c0\ub984 25mm(1\uc778\uce58) \uc6d0\ud615<\/span><\/div>\n <div class=\"ts-table-wrap\"><table class=\"ts-table\"><thead><tr><th>\ub4f1\uae09<\/th><th>\uc785\ub2e4 (\ube44)<\/sup><\/th><th>\uac15\uc778\ud568 (\uae30\uc74c)<\/sup><\/th><th>\uace0\uc628 \uacbd\ub3c4<\/th><th>\uc791\uc5c5\uacbd\ub3c4, HRC<\/th><th>\uae4a\uc774 (\ub514)<\/sup><\/th><th>\uc785\uc790 \ud06c\uae30 (\ubaa9\uc790)<\/sup><\/th><th>\ud45c\uba74 HRC<\/th><th>\ucf54\uc5b4 HRC<\/th><\/tr><\/thead><tbody><tr class=\"ts-group\"><td colspan=\"9\">\ubab0\ub9ac\ube0c\ub374 \uace0\uc18d\uac15<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e01<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/m2-tool-steel\/\">\uc5e02<\/a><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M3, 1\ub4f1\uae09<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M3, 2\ub4f1\uae09<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e04<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">65~67\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e07<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e010<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e030<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e033<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e034<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/m35-tool-steel\/\">\uc5e035<\/a><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e036<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">M41<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66~70\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/m42-tool-steel\/\">M42<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66~70\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M43<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66~70\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M44<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66~70\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M46<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66\u201369<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M47<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">66~70\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uc911\uc18d\uac15<\/td><\/tr><tr><td class=\"ts-grade\">\uc5e050<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">M52<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">62\u201364<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\ud145\uc2a4\ud150 \uace0\uc18d\uac15<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f01<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f02<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">65~67\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f04<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">63\u201366<\/td><td class=\"ts-hr\">63\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f05<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f06<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f08<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ud2f015<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-hr\">64\u201368<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9\u00bd<\/td><td class=\"ts-hr\">65~68\uc138<\/td><td class=\"ts-hr\">65~68\uc138<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\ud06c\ub86c \uc5f4\uac04 \uac00\uacf5\uc6a9 \uac15\uc7ac<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/h10-tool-steel\/\">H10<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">39\u201356<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">52\u201359<\/td><td class=\"ts-hr\">52\u201359<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/h11-tool-steel\/\">H11<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">38~55\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53~55\uc138<\/td><td class=\"ts-hr\">53~55\uc138<\/td><\/tr><tr><td class=\"ts-grade\">H12<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">38~55\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53~55\uc138<\/td><td class=\"ts-hr\">53~55\uc138<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/h13-tool-steel\/\">H13<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">40~53\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">51\u201354<\/td><td class=\"ts-hr\">51\u201354<\/td><\/tr><tr><td class=\"ts-grade\">H14<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">40~54\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">53\u201357<\/td><td class=\"ts-hr\">53\u201356<\/td><\/tr><tr><td class=\"ts-grade\">H19<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">40~55\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">48~57\uc138<\/td><td class=\"ts-hr\">48~57\uc138<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\ud145\uc2a4\ud150 \uace0\uc628 \uc791\uc5c5\uc6a9 \uac15\uc7ac<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/h21-tool-steel\/\">H21<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">40~55\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">45~63\uc138<\/td><td class=\"ts-hr\">45~63\uc138<\/td><\/tr><tr><td class=\"ts-grade\">H22<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">36~54\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">48~56\uc138<\/td><td class=\"ts-hr\">48~56\uc138<\/td><\/tr><tr><td class=\"ts-grade\">H23<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">38~48\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7<\/td><td class=\"ts-hr\">34~40\uc138<\/td><td class=\"ts-hr\">34~40\uc138<\/td><\/tr><tr><td class=\"ts-grade\">H24<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">40~55\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">52\u201356<\/td><td class=\"ts-hr\">52\u201356<\/td><\/tr><tr><td class=\"ts-grade\">H25<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">35~45\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">33~46\uc138<\/td><td class=\"ts-hr\">33~46\uc138<\/td><\/tr><tr><td class=\"ts-grade\">H26<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-hr\">50~58\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">51\u201359<\/td><td class=\"ts-hr\">51\u201359<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\ubab0\ub9ac\ube0c\ub374 \uace0\uc628 \uc791\uc5c5\uc6a9 \uac15\uc7ac<\/td><\/tr><tr><td class=\"ts-grade\">H42<\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">45~62\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">54\u201362<\/td><td class=\"ts-hr\">54\u201362<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uacf5\uae30 \uacbd\ud654\ud615, \uc911\ud569\uae08\ud615, \ub0c9\uac04 \uac00\uacf5\uc6a9 \uac15<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/a2-tool-steel\/\">A2<\/a><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">A3<\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">58~63\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">63\u201365<\/td><td class=\"ts-hr\">63\u201365<\/td><\/tr><tr><td class=\"ts-grade\">A4<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54\u201362<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">61\u201363<\/td><\/tr><tr><td class=\"ts-grade\">A5<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54~60\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">60~62\uc138<\/td><td class=\"ts-hr\">60~62\uc138<\/td><\/tr><tr><td class=\"ts-grade\">A6<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">54~60\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">60~62\uc138<\/td><td class=\"ts-hr\">60~62\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\uc5d0\uc7747<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58~66\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">A8<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">48~57\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">60~62\uc138<\/td><td class=\"ts-hr\">60~62\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\uc5d0\uc7749<\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">40~56\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">55~57\uc138<\/td><td class=\"ts-hr\">55~57\uc138<\/td><\/tr><tr><td class=\"ts-grade\">A10<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">55~62\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">60~63\uc138<\/td><td class=\"ts-hr\">60~63\uc138<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uace0\ud0c4\uc18c, \uace0\ud06c\ub86c, \ub0c9\uac04\uac00\uacf5\uac15<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/d2-tool-steel\/\">\ub5142<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">61\u201364<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/d3-tool-steel\/\">\ub5143<\/a><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ub5144<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201366<\/td><td class=\"ts-hr\">64\u201366<\/td><\/tr><tr><td class=\"ts-grade\">\ub5145<\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-hr\">58~63\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">61\u201364<\/td><\/tr><tr><td class=\"ts-grade\">\ub5147<\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-hr\">58~66\uc138<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">64\u201368<\/td><td class=\"ts-hr\">64\u201368<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uc624\uc77c \uacbd\ud654 \ub0c9\uac04 \uac00\uacf5\uac15<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/o1-tool-steel\/\">\uc6241<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/o2-tool-steel\/\">\uc0b0\uc18c<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">57\u201362<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr><td class=\"ts-grade\">\uc6246<\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">58~63\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">50~55\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\uc6247<\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201364<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\ub0b4\ucda9\uaca9\uc131 \uac15\ucca0<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/s1-tool-steel\/\">S1<\/a><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">50~58\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">55~58\uc138<\/td><td class=\"ts-hr\">55~58\uc138<\/td><\/tr><tr><td class=\"ts-grade\">S2<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">50~60\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">56~60\uc138<\/td><\/tr><tr><td class=\"ts-grade\">S5<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">50~60\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">61\u201363<\/td><td class=\"ts-hr\">58~62\uc138<\/td><\/tr><tr><td class=\"ts-grade\">S6<\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-hr\">50~56\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">56\u201358<\/td><td class=\"ts-hr\">56\u201358<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/s7-tool-steel\/\">S7<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>5<\/span><\/span><\/td><td class=\"ts-hr\">47\u201357<\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">59\u201361<\/td><td class=\"ts-hr\">59\u201361<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uc800\ud569\uae08 \ud2b9\uc218\uc6a9\uac15<\/td><\/tr><tr><td class=\"ts-grade\">L2<\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>7<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">45~62\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8\u00bd<\/td><td class=\"ts-hr\">56\u201362<\/td><td class=\"ts-hr\">54\u201358<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/l6-tool-steel\/\">L6<\/a><\/td><td class=\"ts-num\"><\/b><\/i>3<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>6<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2<\/span><\/span><\/td><td class=\"ts-hr\">45~62\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">8<\/td><td class=\"ts-hr\">58~63\uc138<\/td><td class=\"ts-hr\">58~62\uc138<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uc800\ud0c4\uc18c \uae08\ud615\uac15<\/td><\/tr><tr class=\"ts-group ts-sub\"><td colspan=\"9\">\ud5c8\ube0c\ud615 \ubc0f\/\ub610\ub294 \uce68\ud0c4 \ucc98\ub9ac\ub41c \uce90\ube44\ud2f0\uc6a9<\/td><\/tr><tr><td class=\"ts-grade\">\ud53c2 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (\uc5d0\uc774)<\/span><\/td><td class=\"ts-hr\">15~21\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\ud53c3 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201364 (\uc5d0\uc774)<\/span><\/td><td class=\"ts-hr\">15~21\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\ud53c4 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58~64\uc138 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (\uc5d0\uc774)<\/span><\/td><td class=\"ts-hr\">33~35\uc138<\/td><\/tr><tr><td class=\"ts-grade\">\ud53c5 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">50~64\uc138 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">62\u201365 (\uc5d0\uc774)<\/span><\/td><td class=\"ts-hr\">20~25\uc138<\/td><\/tr><tr><td class=\"ts-grade\">P6 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>9<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">58\u201361 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">60~62\uc138 (\uc5d0\uc774)<\/span><\/td><td class=\"ts-hr\">35~37\uc138<\/td><\/tr><tr class=\"ts-group ts-sub\"><td colspan=\"9\">\uac00\uacf5\ub41c \uce90\ube44\ud2f0\uc758 \uacbd\uc6b0<\/td><\/tr><tr><td class=\"ts-grade\"><a href=\"\/ko\/p20-tool-steel\/\">P20 (\uc774\uc790\ud615)<\/span><\/a><\/td><td class=\"ts-num\"><\/b><\/i>1(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>2(\uc774\uc790\ud615)<\/span><\/span><\/span><\/td><td class=\"ts-hr\">30~50\uc138<\/td><td class=\"ts-num\">M<\/td><td class=\"ts-num\">7\u00bd<\/td><td class=\"ts-hr\">52\u201354<\/td><td class=\"ts-hr\">45~50\uc138<\/td><\/tr><tr><td class=\"ts-grade\">P21<\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>8<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>4<\/span><\/span><\/td><td class=\"ts-hr\">36~39\uc138 (\uc774\uc790\ud615)<\/span><\/td><td class=\"ts-num\">D<\/td><td class=\"ts-num\">\u2026<\/td><td class=\"ts-hr\">22~26\uc138<\/td><td class=\"ts-hr\">22~26\uc138<\/td><\/tr><tr class=\"ts-group\"><td colspan=\"9\">\uc218\ubd84\uacbd\ud654 \uacf5\uad6c\uac15<\/td><\/tr><tr><td class=\"ts-grade\">W1<\/td><td class=\"ts-num\"><\/b><\/i>2~4\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3~7\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58~65\uc138<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">38~43\uc138<\/td><\/tr><tr><td class=\"ts-grade\">W2<\/td><td class=\"ts-num\"><\/b><\/i>2~4\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3~7\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58~65\uc138<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">38~43\uc138<\/td><\/tr><tr><td class=\"ts-grade\">W5<\/td><td class=\"ts-num\"><\/b><\/i>3~4\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>3~7\uc138<\/span><\/span><\/td><td class=\"ts-num\"><\/b><\/i>1<\/span><\/span><\/td><td class=\"ts-hr\">58~65\uc138<\/td><td class=\"ts-num\">S<\/td><td class=\"ts-num\">9<\/td><td class=\"ts-hr\">65~67\uc138<\/td><td class=\"ts-hr\">38~43\uc138<\/td><\/tr><\/tbody><\/table><\/div><h3 style=\"font-size:1em;margin:1.2em 0 .3em;color:var(--aobo-text);\">\ucc38\uace0\ubb38\ud5cc \ubc0f \uc8fc\uc11d<\/h3><ol class=\"ts-notes-list\"><li>(\uc5d0\uc774)<\/sup> \ud3c9\uc810 \ubc94\uc704\ub294 1(\ub0ae\uc74c)\ubd80\ud130 9(\ub192\uc74c)\uae4c\uc9c0\uc785\ub2c8\ub2e4.<\/li><li>(\ube44)<\/sup> \ud0c4\uc18c \ud568\ub7c9\uc774 \uc99d\uac00\ud560\uc218\ub85d \ub0b4\ub9c8\ubaa8\uc131\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/li><li>(\uae30\uc74c)<\/sup> \ud0c4\uc18c \ud568\ub7c9\uacfc \uacbd\ud654 \uae4a\uc774\uac00 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \uc778\uc131\uc774 \uac10\uc18c\ud569\ub2c8\ub2e4.<\/li><li>(\ub514)<\/sup> S\ub294 \uc595\uc740 \uc218\uc2ec, M\uc740 \uc911\uac04 \uc218\uc2ec, D\ub294 \uae4a\uc740 \uc218\uc2ec\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/li><li>(\uc774\uc790\ud615)<\/sup> \uce68\ud0c4 \ucc98\ub9ac \ud6c4.<\/li><\/ol><figure class=\"ts-fig\"> <img src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\" alt=\"\uacf5\uad6c\uac15\uc758 \uace0\uc628 \uacbd\ub3c4 \ubc0f \ub0b4\ub9c8\ubaa8\uc131\uc5d0 \ub300\ud55c \uc778\uc131 \uadf8\ub798\ud504 (ASM \ud578\ub4dc\ubd81 \uadf8\ub9bc 6)\" decoding=\"async\" loading=\"lazy\"><figcaption>\uacf5\uad6c\uac15\uc758 \uc778\uc131\uc744 (a) \uace0\uc628 \uacbd\ub3c4 \ubc0f (b) \ub0b4\ub9c8\ubaa8\uc131\uc5d0 \ub300\ud574 \ub098\ud0c0\ub0b8 \uadf8\ub798\ud504\uc785\ub2c8\ub2e4. \ubc11\uc904\uc774 \uadf8\uc5b4\uc9c4 \uc885\ub958\ub294 \ud45c\uba74 \uacbd\ud654\uac00 \uc595\uc740 \uacf5\uad6c\uac15\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. (b)\uc758 \uc810\uc120 \uc0ac\uc774 \uc601\uc5ed\uc740 \ud3c9\uade0\uac12\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/figcaption><\/figure><div class=\"ts-grid\"><div class=\"ts-card\"><h2>\uacf5\uad6c\uac15\uc758 \ud0c4\uc131 \uacc4\uc218<\/h2>\uc2e4\uc9c8\uc801\uc73c\ub85c \ubaa8\ub4e0 \uc870\uac74\uc5d0\uc11c \ubaa8\ub4e0 \uacf5\uad6c\uac15\uc758 \ud0c4\uc131 \uacc4\uc218\ub294 \ub300\ub7b5 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. 210 GPa (30 \u00d7 106<\/sup> psi)<\/b> \uc2e4\uc628\uc5d0\uc11c. \uc57d 0.5\uae4c\uc9c0 \uade0\uc77c\ud558\uac8c \uac10\uc18c\ud569\ub2c8\ub2e4. 185 GPa (27 \u00d7 106<\/sup> psi)<\/b> 260\u00b0C(500\u00b0F)\uc5d0\uc11c \uadf8\ub9ac\uace0 \ub300\ub7b5 150 GPa (22 \u00d7 106<\/sup> psi)<\/b> 540\u00b0C(1000\u00b0F)\uc5d0\uc11c.<\/p><\/div><div class=\"ts-card\"><h2>\ub0b4\ub9c8\ubaa8\uc131<\/h2>Wear resistance increases with carbon content. At a given hardness, however, it may vary widely depending on the wear mechanism and heat treatment used. Steels with similar hardness can behave very differently under identical wear conditions. The grades that resist wear best are also the hardest to machine, and the <a href=\"\/ko\/tool-steel-machinability-rating-chart\/\">machinability rating chart<\/a> puts a number on that trade-off.<\/p><\/div><div class=\"ts-card\"><h2>\ub0b4\uad6c\uc131 \ubc0f \ud14c\uc2a4\ud2b8<\/h2>At maximum hardness, most tool steels are brittle, so tensile testing rarely gives reliable strength values. Compression, bending and torsion tests are more useful; torsion impact testing gives reproducible data on the effect of composition and heat treatment, particularly for drills and tools loaded in torsion. Where toughness and wear resistance pull in opposite directions, <a href=\"\/ko\/tool-steel-selection-by-application\/\">selection by application<\/a> is the faster route to a grade.<\/p><\/div><\/div><div class=\"ts-disclaimer\"><h3>\uacf5\uae09 \ubc94\uc704 \ubc0f \uae30\uc220 \ucc38\uc870 \ub178\ud2b8<\/h3>Aobo Steel supplies tool steel in round bar and plate form, in annealed condition. Hardening, quenching and tempering are performed by the customer’s heat-treatment facility. The <a href=\"\/ko\/tool-steel-heat-treatment-guide\/\">tool steel heat treatment guide<\/a> covers austenitizing temperatures, soak times and tempering windows for these grades.<\/p>\ubcf8 \ucc38\uace0\uc790\ub8cc\uc5d0 \uc81c\uc2dc\ub41c \ubb3c\uc131 \ub4f1\uae09 \ubc0f \uacbd\ub3c4 \ub370\uc774\ud130\ub294 ASM \ud578\ub4dc\ubd81 1\uad8c \ud45c 13\uc5d0\uc11c \ubc1c\ucdcc\ud55c \uc0c1\ub300\uc801 \ube44\uad50 \uc790\ub8cc\uc785\ub2c8\ub2e4. \uc2e4\uc81c \uc131\ub2a5\uc740 \uc5f4\ucc98\ub9ac, \ub2e8\uba74 \ud06c\uae30, \uacf5\uad6c \ud615\uc0c1 \ubc0f \uc0ac\uc6a9 \uc870\uac74\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucd5c\uc885 \ubb3c\uc131 \ubc0f \uc5f4\ucc98\ub9ac \uc808\ucc28\ub294 \ubc18\ub4dc\uc2dc \uc5f4\ucc98\ub9ac \uc5c5\uccb4\uc5d0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p><\/div>\n <div class=\"ts-rel\">\n <h3>\uad00\ub828 \ucc38\uc870 \ud398\uc774\uc9c0<\/h3>\n <a href=\"\/ko\/tool-steel-composition-chart\/\">\uacf5\uad6c\uac15 \uad6c\uc131\ud45c<\/a> \u00b7 <a href=\"\/ko\/tool-steel-hot-hardness-chart\/\">\uacf5\uad6c\uac15 \uace0\uc628 \uacbd\ub3c4\ud45c<\/a> \u00b7 <a href=\"\/ko\/tool-steel-hardening-tempering-chart\/\">\uacbd\ud654 \ubc0f \ud15c\ud37c\ub9c1 \uc628\ub3c4<\/a> \u00b7 <a href=\"\/ko\/tool-steel-machinability-rating-chart\/\">Machinability ratings<\/a> \u00b7 <a href=\"\/ko\/tool-steel-selection-by-application\/\">Selection by application<\/a> \u00b7 <a href=\"\/ko\/tool-steel-equivalent-grades\/\">Grade comparison and equivalents<\/a> \u00b7 <a href=\"\/ko\/tool-steel-hardness-conversion-calculator\/\">\uacbd\ub3c4 \ubcc0\ud658 \uacc4\uc0b0\uae30<\/a> \u00b7 <a href=\"\/ko\/tool-steel-heat-treatment-guide\/\">\uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/a> \u00b7 <a href=\"\/ko\/tool-steel-thermal-conductivity\/\">Tool steel thermal conductivity chart<\/a><\/p>\n <\/div>\n\n <\/div><\/div><\/div>\ucd9c\ucc98: ASM \ud578\ub4dc\ubd81, \uc81c1\uad8c - \ubb3c\uc131 \ubc0f \uc120\ud0dd: \ucca0, \uac15\ucca0 \ubc0f \uace0\uc131\ub2a5 \ud569\uae08, \ud45c 13 "\uacf5\uad6c\uac15\uc758 \uc77c\ubc18 \ubb3c\uc131"(\uce68\ud0c4 \ucc98\ub9ac \ud6c4 "e"\ub85c \ud45c\uc2dc\ub41c \ub4f1\uae09\uc758 \ub370\uc774\ud130). \ube44\uad50\ub97c \uc704\ud55c \ucc38\uace0 \ub370\uc774\ud130 - \ucd5c\uc885 \uc5f4\ucc98\ub9ac\ub294 \ud574\ub2f9 \ub4f1\uae09 \uacf5\uae09\uc5c5\uccb4\uc5d0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p><\/section>\n<\/body>\n<\/html>","protected":false},"excerpt":{"rendered":"General Properties of Tool Steels | AISI Grade Reference Tool Steel Selection Data General Properties of Tool Steels Reference table of the principal AISI tool steel grades, covering wear resistance, toughness, hot hardness, usual working hardness, depth of hardening, grain size and hardness after hardening. Ratings are relative comparisons on a 1 (low) to 9 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-17413","page","type-page","status-publish","hentry"],"yoast_head":"\n<title>Tool Steel Properties Chart: Hardness, Wear & Toughness for 75 Grades<\/title>\n<meta name=\"description\" content=\"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aobosteel.com\/ko\/tool-steel-properties-chart\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness\" \/>\n<meta property=\"og:description\" content=\"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/tool-steel-properties-chart\/\" \/>\n<meta property=\"og:site_name\" content=\"AoboSteel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-15T08:11:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data1\" content=\"6\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness\",\"datePublished\":\"2026-08-03T04:38:02+00:00\",\"dateModified\":\"2026-09-15T08:11:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/\"},\"wordCount\":1095,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\",\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/\",\"name\":\"Tool Steel Properties Chart: Hardness, Wear & Toughness for 75 Grades\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\",\"datePublished\":\"2026-08-03T04:38:02+00:00\",\"dateModified\":\"2026-09-15T08:11:57+00:00\",\"description\":\"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#breadcrumb\"},\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#primaryimage\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/tool-steel-properties-chart\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"name\":\"AoboSteel\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/aobosteel.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ko-KR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\",\"name\":\"AoboSteel\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"width\":1052,\"height\":592,\"caption\":\"AoboSteel\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\",\"name\":\"Evan\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"caption\":\"Evan\"},\"sameAs\":[\"http:\\\/\\\/www.aobosteel.com\",\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.instagram.com\\\/aobosteel\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\",\"https:\\\/\\\/x.com\\\/AobosteelEvan\",\"https:\\\/\\\/www.youtube.com\\\/@aobosteel\"],\"url\":\"https:\\\/\\\/aobosteel.com\\\/ko\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n","yoast_head_json":{"title":"Tool Steel Properties Chart: Hardness, Wear & Toughness for 75 Grades","description":"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/aobosteel.com\/ko\/tool-steel-properties-chart\/","og_locale":"ko_KR","og_type":"article","og_title":"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness","og_description":"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.","og_url":"https:\/\/aobosteel.com\/ko\/tool-steel-properties-chart\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-09-15T08:11:57+00:00","og_image":[{"url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"6\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness","datePublished":"2026-08-03T04:38:02+00:00","dateModified":"2026-09-15T08:11:57+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/"},"wordCount":1095,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"image":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png","inLanguage":"ko-KR"},{"@type":"WebPage","@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/","url":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/","name":"Tool Steel Properties Chart: Hardness, Wear & Toughness for 75 Grades","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#primaryimage"},"image":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png","datePublished":"2026-08-03T04:38:02+00:00","dateModified":"2026-09-15T08:11:57+00:00","description":"Wear resistance, toughness, hot hardness and working HRC for 75 AISI tool steel grades, from M and T high-speed to hot-work, cold-work and mold steels.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#breadcrumb"},"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/tool-steel-properties-chart\/"]}]},{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#primaryimage","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/08\/Plots-of-toughness-against-a-hot-hardness-and-b-wear-resistance-for-tool-steels.png"},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/tool-steel-properties-chart\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"AISI Tool Steel Properties Chart: Wear, Toughness & Hardness"}]},{"@type":"WebSite","@id":"https:\/\/aobosteel.com\/#website","url":"https:\/\/aobosteel.com\/","name":"\uc544\uc624\ubcf4\uc2a4\ud2f8","description":"","publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/aobosteel.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ko-KR"},{"@type":"Organization","@id":"https:\/\/aobosteel.com\/#organization","name":"\uc544\uc624\ubcf4\uc2a4\ud2f8","url":"https:\/\/aobosteel.com\/","logo":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","width":1052,"height":592,"caption":"AoboSteel"},"image":{"@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/"]},{"@type":"Person","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7","name":"\uc5d0\ubc18","image":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","caption":"Evan"},"sameAs":["http:\/\/www.aobosteel.com","https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.instagram.com\/aobosteel\/","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/","https:\/\/x.com\/AobosteelEvan","https:\/\/www.youtube.com\/@aobosteel"],"url":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"}]}},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"General Properties of Tool Steels | AISI Grade Reference Tool Steel Selection Data General Properties of Tool Steels Reference table of the principal AISI tool steel grades, covering wear resistance, toughness, hot hardness, usual working hardness, depth of hardening, grain size and hardness after hardening. Ratings are relative comparisons on a 1 (low) to 9…","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"General Properties of Tool Steels | AISI Grade Reference Tool Steel Selection Data General Properties of Tool Steels Reference table of the principal AISI tool steel grades, covering wear resistance, toughness, hot hardness, usual working hardness, depth of hardening, grain size and hardness after hardening. Ratings are relative comparisons on a 1 (low) to 9…","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/17413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/comments?post=17413"}],"version-history":[{"count":4,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/17413\/revisions"}],"predecessor-version":[{"id":18447,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/17413\/revisions\/18447"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=17413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}