{"id":19803,"date":"2026-09-26T03:11:07","date_gmt":"2026-09-25T19:11:07","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=19803"},"modified":"2026-09-27T19:53:55","modified_gmt":"2026-09-27T11:53:55","slug":"s5-tool-steel-heat-treatment","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/s5-tool-steel-heat-treatment\/","title":{"rendered":"S5 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac"},"content":{"rendered":"\n<style>\n\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  }\n  *{box-sizing:border-box;}\n  html{-webkit-text-size-adjust:100%;}\n  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;}\n\n  \/* Root scope \u2014 WordPress theme guard *\/\n  .ts-props{color:var(--aobo-text);background:transparent;padding:0;box-sizing:border-box;line-height:1.6;}\n  .ts-props *{box-sizing:border-box;}\n  .ts-props button,.ts-props input[type=\"text\"]{\n    background:none !important;border:none !important;border-radius:0 !important;padding:0 !important;\n    margin:0 !important;font-size:inherit !important;font-weight:inherit !important;\n    letter-spacing:normal !important;text-transform:none !important;box-shadow:none !important;\n    line-height:inherit !important;text-decoration:none !important;}\n\n  .aobo-wrap{max-width:1160px;margin:0 auto;}\n\n  \/* Hero *\/\n  .ts-hero{background:#fff;border:1px solid var(--aobo-border);border-radius:var(--aobo-radius);overflow:hidden;}\n  .ts-hero-top{padding:1.5em;background:var(--aobo-stripe);border-bottom:1px solid var(--aobo-border);}\n  .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;}\n  .ts-kicker span{width:6px;height:6px;background:var(--aobo-orange);border-radius:50%;display:inline-block;}\n  .ts-hero h1{margin:0;font-size:2rem;line-height:1.3;color:var(--aobo-text);text-align:center;}\n  .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;}\n\n  \/* Tool area *\/\n  .ts-tool-area{padding:1.5em;}\n\n  \/* Legend *\/\n  .ts-legend{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:1em;}\n  .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;}\n  .ts-legend b{color:var(--aobo-text);font-weight:600;}\n  .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;}\n\n  \/* Controls *\/\n  .ts-controls{display:flex;flex-wrap:wrap;gap:10px;align-items:center;background:var(--aobo-stripe);\n    border:1px solid var(--aobo-border);border-radius:var(--aobo-radius);padding:1em;margin-bottom:1.2em;}\n  .ts-search{flex:1 1 220px;max-width:340px;position:relative;}\n  .ts-props .ts-search input{width:100% !important;border:1px solid var(--aobo-border-dark) !important;\n    border-radius:var(--aobo-radius-sm) !important;padding:.5em .6em .5em 2em !important;\n    font-size:.92em !important;color:var(--aobo-text) !important;background:#fff !important;\n    outline:none !important;box-shadow:none !important;}\n  .ts-props .ts-search input:focus{border-color:var(--aobo-accent) !important;\n    box-shadow:0 0 0 2px rgba(37,99,235,.12) !important;}\n  .ts-search::before{content:\"\";position:absolute;left:.7em;top:50%;transform:translateY(-50%);\n    width:13px;height:13px;background:var(--aobo-muted);\n    -webkit-mask:url(\"data:image\/svg+xml;utf8,<svg xmlns='http:\/\/www.w3.org\/2000\/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'><circle cx='11' cy='11' r='8'\/><path d='m21 21-4.3-4.3'\/><\/svg>\") center\/contain no-repeat;\n    mask:url(\"data:image\/svg+xml;utf8,<svg xmlns='http:\/\/www.w3.org\/2000\/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'><circle cx='11' cy='11' r='8'\/><path d='m21 21-4.3-4.3'\/><\/svg>\") center\/contain no-repeat;}\n  .ts-chips{display:flex;flex-wrap:wrap;gap:6px;}\n  .ts-props .ts-chip{border:1px solid var(--aobo-border-dark) !important;background:#fff !important;\n    color:var(--aobo-text) !important;border-radius:999px !important;padding:.4em .9em !important;\n    font-size:.8em !important;font-weight:600 !important;cursor:pointer !important;transition:all .15s !important;}\n  .ts-props .ts-chip:hover{background:var(--aobo-hover) !important;border-color:var(--aobo-accent) !important;}\n  .ts-props .ts-chip.on{background:var(--aobo-accent) !important;border-color:var(--aobo-accent) !important;color:#fff !important;}\n  .ts-count{font-size:.8em;color:var(--aobo-muted);margin-left:auto;white-space:nowrap;}\n\n  \/* Table *\/\n  .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);}\n  table.ts-table{border-collapse:collapse;width:100%;min-width:880px;font-size:.88em;}\n  .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;cursor:pointer;\n    white-space:nowrap;user-select:none;}\n  .ts-table thead th:last-child{border-right:0;}\n  .ts-table thead th .ts-arr{color:#ffd166;font-weight:700;margin-left:3px;}\n  .ts-table tbody td{padding:.55em .7em;border-bottom:1px solid var(--aobo-border);text-align:center;\n    vertical-align:middle;white-space:nowrap;}\n  .ts-table tbody tr:nth-child(even){background:var(--aobo-stripe);}\n  .ts-table tbody tr:hover{background:var(--aobo-hover);}\n  .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;}\n  .ts-table tbody tr:not(.ts-group).ts-hide{display:none;}\n  td.ts-grade{font-weight:700;font-size:.95em;text-align:left;white-space:nowrap;color:var(--aobo-text);}\n  .ts-meter{display:inline-flex;align-items:center;gap:7px;}\n  .ts-meter i{display:inline-block;width:44px;height:6px;border-radius:3px;background:var(--aobo-fill);overflow:hidden;}\n  .ts-meter i b{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,#4d94ff,var(--aobo-accent));}\n  .ts-meter span{font-size:.9em;font-weight:600;min-width:14px;}\n  .ts-hr{font-variant-numeric:tabular-nums;font-weight:500;}\n  .ts-num{font-variant-numeric:tabular-nums;}\n  .ts-sup{font-size:9px;color:var(--aobo-accent);vertical-align:super;line-height:0;}\n\n  \/* Footnotes *\/\n  .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;}\n  .ts-notes-list li{margin-bottom:.3em;}\n  .ts-notes-list sup{color:var(--aobo-accent);font-size:10px;}\n\n  \/* Figure *\/\n  .ts-fig{margin:1.2em 0 0;background:#fff;border:1px solid var(--aobo-border);border-radius:var(--aobo-radius);padding:1em;}\n  .ts-fig img{display:block;width:100%;height:auto;border-radius:6px;}\n  .ts-fig figcaption{font-size:.8em;color:var(--aobo-muted);margin-top:.6em;line-height:1.6;}\n  .ts-fig figcaption b{color:var(--aobo-text);}\n\n  \/* Info cards *\/\n  .ts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px;margin-top:1.2em;}\n  .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;}\n  .ts-grid h2{font-size:1em;margin:0 0 .4em;color:var(--aobo-text);}\n  .ts-grid p{font-size:.82em;color:var(--aobo-muted);margin:0;line-height:1.7;}\n  .ts-grid p b{color:var(--aobo-text);font-weight:600;}\n\n  \/* Disclaimer *\/\n  .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;}\n  .ts-disclaimer h3{margin:0 0 .5em;font-size:.95em;color:var(--aobo-text);display:flex;align-items:center;gap:6px;}\n  .ts-disclaimer h3::before{content:\"\\2139\";font-size:1em;color:var(--aobo-accent);}\n  .ts-disclaimer p{margin:0 0 .5em;max-width:none;color:var(--aobo-muted);line-height:1.7;}\n  .ts-disclaimer p:last-child{margin-bottom:0;}\n\n  \/* Empty \/ source *\/\n  .ts-empty{display:none;text-align:center;color:var(--aobo-muted);padding:2em 1em;font-size:.9em;}\n  .ts-empty.show{display:block;}\n  .ts-source{margin-top:.8em;color:var(--aobo-muted);font-size:.82em;line-height:1.58;}\n\n  @media (max-width:860px){\n    .ts-hero-top,.ts-tool-area{padding:1em;}\n    .ts-controls{flex-direction:column;align-items:stretch;}\n    .ts-search{max-width:none;}\n    .ts-count{margin-left:0;}\n    .ts-hero h1{font-size:1.5rem;}\n  }\n  @media (max-width:520px){\n    .ts-hero-top,.ts-tool-area{padding:.8em;}\n    table.ts-table{font-size:.82em;}\n    .ts-table thead th,.ts-table tbody td{padding:.4em .4em;}\n  }\n  table.ts-table thead th{cursor:default;}\n  table.ts-table td.ts-grade{font-weight:700;}\n  table.ts-table td.ts-type{white-space:normal;text-align:left;font-size:.92em;color:#555;min-width:150px;}\n  table.ts-table td.ts-long{white-space:normal;text-align:left;vertical-align:top;font-size:.92em;color:#444;\n    min-width:260px;line-height:1.55;}\n  table.ts-table td.ts-safe{white-space:normal;text-align:left;vertical-align:top;}\n  table.ts-table tbody tr:hover{background:var(--aobo-hover);}\n  table.ts-table tbody tr.ts-group:hover td{background:#e8ecf1;}\n  .ts-sec{margin:1.8em 0 .5em;font-size:1.02em;color:var(--aobo-text);font-weight:700;}\n  .ts-sec span{display:block;font-size:.8em;font-weight:400;color:var(--aobo-muted);margin-top:.15em;line-height:1.6;}\n  .ts-table-wrap{margin-top:.6em;}\n  .ts-tcap{margin:.5em 0 0;font-size:.78em;color:var(--aobo-muted);line-height:1.6;}\n  .ts-props a{color:var(--aobo-blue) !important;text-decoration:none !important;}\n  .ts-props a:hover{text-decoration:underline !important;}\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<\/style>\n<style id=\"aobo-dl-css\">\n.aobo-ht-ref.ts-props .ts-dl{display:flex !important;flex-wrap:wrap;align-items:center;gap:1em;\n  background:var(--aobo-stripe) !important;border:1px solid var(--aobo-border) !important;\n  border-radius:var(--aobo-radius) !important;padding:1.1em 1.3em !important;margin:1.5em 0 !important;}\n.aobo-ht-ref.ts-props .ts-dl-txt{flex:1 1 340px;font-size:.95em;color:var(--aobo-text) !important;line-height:1.55;}\n.aobo-ht-ref.ts-props .ts-dl-txt strong{display:block;font-weight:700 !important;margin-bottom:.2em;color:var(--aobo-text) !important;}\n.aobo-ht-ref.ts-props a.ts-dl-btn{display:inline-flex !important;align-items:center;gap:.5em;\n  background:var(--aobo-blue) !important;color:#fff !important;border:1px solid var(--aobo-blue) !important;\n  border-radius:var(--aobo-radius-sm) !important;padding:.75em 1.35em !important;font-size:.95em !important;\n  font-weight:600 !important;text-decoration:none !important;white-space:nowrap;box-shadow:none !important;\n  line-height:1.3 !important;text-transform:none !important;}\n.aobo-ht-ref.ts-props a.ts-dl-btn:hover,.aobo-ht-ref.ts-props a.ts-dl-btn:focus{background:var(--aobo-blue-dark) !important;\n  border-color:var(--aobo-blue-dark) !important;color:#fff !important;}\n.aobo-ht-ref.ts-props a.ts-dl-btn svg{width:1.05em;height:1.05em;fill:none;stroke:currentColor;stroke-width:2;flex:0 0 auto;}\n@media (max-width:640px){.aobo-ht-ref.ts-props a.ts-dl-btn{width:100%;justify-content:center;}}\n<\/style>\n<style id=\"aobo-ds\">\n.entry-content[class]{--ds-font-body: Lora,serif;--ds-font-head: Lato,sans-serif;--ds-blue: #0c56d0;--ds-blue-deep: #082d6f;--ds-blue-dark: #073b91;--ds-blue-soft: #eaf2ff;--ds-blue-pale: #f7fbff;--ds-border: #d7e5fb;--ds-border-soft: #e8eef8;--ds-text: #203044;--ds-muted: #617087;--ds-orange: #f59b23;--ds-shadow: 0 18px 45px rgba(12,86,208,0.10);--ds-shadow-sm: 0 12px 32px rgba(12,86,208,0.07);font-family: var(--ds-font-body);line-height: 1.7;-webkit-text-size-adjust: 100%;box-sizing: border-box}.entry-content[class] *,.entry-content[class] *::before,.entry-content[class] *::after{box-sizing: border-box}.entry-content[class] h1{font-family: var(--ds-font-head) !important;font-size: clamp(24px,4vw,min(50px,var(--h1-max,50px))) !important;line-height: 1.08 !important;letter-spacing: 0 !important;font-weight: 400 !important;margin: 0 0 16px !important}.entry-content[class] h2{font-family: var(--ds-font-head) !important;font-size: 30px !important;line-height: 1.25 !important;letter-spacing: 0 !important;font-weight: 400 !important;margin: 44px 0 16px !important}.entry-content[class] h3{font-family: var(--ds-font-head) !important;font-size: 23px !important;line-height: 1.3 !important;letter-spacing: 0 !important;font-weight: 400 !important;margin: 30px 0 12px !important}.entry-content[class] h4{font-family: var(--ds-font-head) !important;font-size: 19px !important;line-height: 1.35 !important;letter-spacing: 0 !important;font-weight: 700 !important;margin: 24px 0 10px !important}.entry-content[class] p,.entry-content[class] li,.entry-content[class] dd,.entry-content[class] dt{font-family: var(--ds-font-body) !important;font-size: 17px !important;line-height: 1.7 !important}.entry-content[class] figcaption,.entry-content[class] small,.entry-content[class] .aobo-figure figcaption{font-size: 15px !important;line-height: 1.6 !important}.entry-content[class] table{width: 100%;border-collapse: collapse;background: #ffffff}.entry-content[class] table th,.entry-content[class] table thead th,.entry-content[class] table thead td{background: var(--ds-blue-soft) !important;color: var(--ds-blue-deep) !important;font-family: var(--ds-font-head) !important;font-size: 15px !important;font-weight: 700 !important;line-height: 1.45 !important;text-align: center !important;text-transform: none !important;letter-spacing: 0 !important;padding: 14px 16px !important;border: 0 !important;border-bottom: 1px solid var(--ds-border) !important;vertical-align: top !important;position: static !important}.entry-content[class] table td{font-family: var(--ds-font-body) !important;font-size: 15px !important;line-height: 1.55 !important;padding: 14px 16px !important;border: 0;border-bottom: 1px solid var(--ds-border-soft) !important;vertical-align: top !important;white-space: normal !important;text-align: center !important}.entry-content[class] table tbody tr:last-child td{border-bottom: 0 !important}.entry-content[class] table th.ds-text,.entry-content[class] table td.ds-text{text-align: left !important}.entry-content[class] table tbody tr:nth-child(even){background: #fafcff !important}.entry-content[class] table tbody tr:hover{background: #f2f7ff !important}.entry-content[class] table tbody td:first-child{color: var(--ds-blue-deep);font-weight: 700}.entry-content[class] .aobo-table-wrap,.entry-content[class] .ts-table-wrap{overflow-x: auto;margin: 22px 0 28px;border: 1px solid var(--ds-border);border-radius: 18px;box-shadow: var(--ds-shadow-sm);background: #ffffff}.entry-content[class] h1,.entry-content[class] h2,.entry-content[class] h3,.entry-content[class] h4{color: var(--ds-blue-deep)}.entry-content[class] p,.entry-content[class] li{color: var(--ds-text)}.entry-content[class] a{color: var(--ds-blue);font-weight: 700;text-decoration: none}.entry-content[class] a:hover,.entry-content[class] a:focus{color: var(--ds-orange)}.entry-content[class] .aobo-final-cta h1,.entry-content[class] .aobo-final-cta h2,.entry-content[class] .aobo-final-cta h3,.entry-content[class] .aobo-final-cta p,.entry-content[class] .aobo-cta h1,.entry-content[class] .aobo-cta h2,.entry-content[class] .aobo-cta h3,.entry-content[class] .aobo-cta p,.entry-content[class] .aobo-cta-buttons,.entry-content[class] .aobo-cta-buttons *,.entry-content[class] .aobo-esr .stat-band h2,.entry-content[class] .aobo-esr .stat-band h3,.entry-content[class] .aobo-esr .stat-band p,.entry-content[class] .aobo-esr .closing h2,.entry-content[class] .aobo-esr .closing h3,.entry-content[class] .aobo-esr .closing p,.entry-content[class] .footcta h2,.entry-content[class] .footcta h3,.entry-content[class] .footcta p,.entry-content[class] .bg-dark h2,.entry-content[class] .bg-dark h3,.entry-content[class] .bg-dark p,.entry-content[class] .ht-header h2,.entry-content[class] .ht-header h3,.entry-content[class] .ts-cta h2,.entry-content[class] .ts-cta h3,.entry-content[class] .aobo-sup .stats h2,.entry-content[class] .aobo-sup .stats h3,.entry-content[class] .aobo-sup .stats p,.entry-content[class] .aobo-sup .cta h2,.entry-content[class] .aobo-sup .cta h3,.entry-content[class] .aobo-sup .cta p{color: inherit}.entry-content[class] .aobo-final-cta p,.entry-content[class] .aobo-cta p,.entry-content[class] .aobo-sup .cta p{color: rgba(255,255,255,0.92)}.entry-content[class] .has-ast-global-color-0-background-color,.entry-content[class] .has-ast-global-color-0-background-color *,.entry-content[class] .contact-container,.entry-content[class] .contact-container *{color: #ffffff !important}.entry-content[class] .has-ast-global-color-0-background-color .label-text,.entry-content[class] .has-ast-global-color-0-background-color .label-text *,.entry-content[class] .contact-container .label-text{color: rgba(255,255,255,0.72) !important}.entry-content[class] .aobo-cta h1,.entry-content[class] .aobo-cta h2,.entry-content[class] .aobo-cta h3,.entry-content[class] .aobo-cta h4,.entry-content[class] .cta h1,.entry-content[class] .cta h2,.entry-content[class] .cta h3,.entry-content[class] .cta h4,.entry-content[class] .aobo-final-cta h1,.entry-content[class] .aobo-final-cta h2,.entry-content[class] .aobo-final-cta h3,.entry-content[class] .aobo-final-cta h4{color: #ffffff !important}.entry-content[class] .aobo-cta p,.entry-content[class] .aobo-cta li,.entry-content[class] .cta p,.entry-content[class] .cta li,.entry-content[class] .aobo-final-cta p,.entry-content[class] .aobo-final-cta li{color: rgba(255,255,255,0.93) !important}.entry-content[class] .aobo-cta p a,.entry-content[class] .aobo-cta li a,.entry-content[class] .cta p a,.entry-content[class] .cta li a,.entry-content[class] .aobo-final-cta p a,.entry-content[class] .aobo-final-cta li a{color: #ffffff !important;text-decoration: underline}.entry-content[class] .aobo-btn-inquiry{color: #ffffff !important}.entry-content[class] .aobo-cta .aobo-btn-inquiry,.entry-content[class] .aobo-final-cta .aobo-btn-inquiry{color: var(--ds-blue) !important}.entry-content[class] .aobo-wrap,.entry-content[class] .aobo-article{max-width: 1180px;margin: 0 auto;padding: 0}.entry-content[class] img{max-width: 100%;height: auto}.entry-content[class] figure{margin: 26px auto 34px;max-width: 860px}.entry-content[class] figure img{display: block;width: 100%;border: 1px solid var(--ds-border);border-radius: 18px;box-shadow: var(--ds-shadow-sm);background: #ffffff}.entry-content[class] .aobo-hero{background: linear-gradient(135deg,#ffffff 0%,#f7fbff 56%,#eaf2ff 100%);border: 1px solid var(--ds-border);border-radius: 28px;padding: 42px 38px;margin-bottom: 24px;box-shadow: var(--ds-shadow);overflow: hidden;position: relative}.entry-content[class] .aobo-hero::after{content: \"\";position: absolute;right: -90px;top: -90px;width: 260px;height: 260px;border-radius: 50%;background: rgba(12,86,208,0.08)}.entry-content[class] .aobo-hero h1,.entry-content[class] .aobo-hero p{position: relative;z-index: 2}.entry-content[class] .aobo-note-box{margin: 34px 0;padding: 22px 24px;border: 1px solid var(--ds-border);border-left: 5px solid var(--ds-orange);border-radius: 16px;background: #fbfdff}.entry-content[class] .aobo-note-box p{margin: 0 0 14px;color: var(--ds-muted) !important;font-style: italic}.entry-content[class] .aobo-note-box p:last-child{margin-bottom: 0}.entry-content[class] .aobo-btn{display: inline-flex;align-items: center;justify-content: center;min-height: 42px;padding: 10px 16px;border-radius: 999px;text-align: center;text-decoration: none;font-family: var(--ds-font-head) !important;font-weight: 700;font-size: 14px !important;line-height: 1.2;transition: all 0.2s ease;cursor: pointer;white-space: nowrap}.entry-content[class] .aobo-btn-primary{background: var(--ds-blue);border: 1px solid var(--ds-blue);color: #ffffff !important}.entry-content[class] .aobo-btn-secondary{background: #ffffff;border: 1px solid var(--ds-border);color: var(--ds-blue) !important}.entry-content[class] .aobo-btn:hover{transform: translateY(-1px)}.entry-content[class] .aobo-supply-actions{display: flex;flex-wrap: wrap;gap: 12px;margin-top: 18px}.entry-content[class] .aobo-supply-actions .aobo-btn{min-width: 190px}.entry-content[class] .aobo-final-cta{margin-top: 34px;padding: 34px;border-radius: 28px;background: linear-gradient(135deg,#073b91 0%,#0c56d0 100%);box-shadow: 0 18px 45px rgba(12,86,208,0.20);display: flex;align-items: center;justify-content: space-between;gap: 20px;flex-wrap: wrap}.entry-content[class] .aobo-final-cta h2{margin: 0 0 12px !important;font-size: 26px !important;color: #ffffff !important}.entry-content[class] .aobo-final-cta p{margin: 0}.entry-content[class] .aobo-final-cta .aobo-btn-primary{background: #ffffff;border-color: #ffffff;color: var(--ds-blue) !important}.entry-content[class] .aobo-final-cta .aobo-btn-secondary{background: transparent;border-color: rgba(255,255,255,0.75);color: #ffffff !important}.entry-content[class] .ts-hero{background: transparent !important;border: 0 !important;border-radius: 0 !important;box-shadow: none !important}.entry-content[class] .ts-hero-top{background: linear-gradient(135deg,#ffffff 0%,#f7fbff 56%,#eaf2ff 100%) !important;border: 1px solid var(--ds-border) !important;border-radius: 28px !important;padding: 42px 38px !important;margin: 0 0 24px !important;box-shadow: var(--ds-shadow) !important;position: relative;overflow: hidden;text-align: left !important}.entry-content[class] .ts-hero-top h1,.entry-content[class] .ts-hero-top p,.entry-content[class] .ts-hero h1{text-align: left !important}.entry-content[class] .ts-hero-top p{max-width: none !important;margin: 0 0 12px !important}.entry-content[class] .ts-tool-area{padding: 0 !important}.entry-content[class] .ts-sec{font-family: var(--ds-font-head) !important;font-size: 30px !important;line-height: 1.25 !important;font-weight: 400 !important;color: var(--ds-blue-deep) !important;margin: 44px 0 16px !important}.entry-content[class] .ts-sec > span{display: block !important;font-family: var(--ds-font-body) !important;font-size: 17px !important;line-height: 1.7 !important;font-weight: 400 !important;color: var(--ds-text) !important;margin: 0 0 16px !important}.entry-content[class] .ts-kicker{display: inline-flex !important;align-items: center;gap: 7px;margin: 0 0 14px !important;padding: 6px 14px !important;border: 1px solid var(--ds-border) !important;border-radius: 999px !important;background: #ffffff !important;color: var(--ds-blue) !important;font-family: var(--ds-font-head) !important;font-size: 13px !important;font-weight: 700 !important;letter-spacing: 0 !important;text-transform: none !important}.entry-content[class] .ts-p,.entry-content[class] .card-desc,.entry-content[class] .aobo-strip-intro,.entry-content[class] .schema-faq-answer{font-family: var(--ds-font-body) !important;font-size: 17px !important;line-height: 1.7 !important;font-weight: 400 !important}.entry-content[class] .lead,.entry-content[class] .fund-lead{font-family: var(--ds-font-body) !important;font-size: 19px !important;line-height: 1.65 !important;font-weight: 400 !important}.entry-content[class] .ts-h2{font-family: var(--ds-font-head) !important;font-size: 30px !important;line-height: 1.25 !important;font-weight: 400 !important;color: var(--ds-blue-deep) !important;margin: 44px 0 16px !important}.entry-content[class] .ts-h3{font-family: var(--ds-font-head) !important;font-size: 23px !important;line-height: 1.3 !important;font-weight: 400 !important;color: var(--ds-blue-deep) !important;margin: 30px 0 12px !important}.entry-content[class] .card-grade{font-family: var(--ds-font-head) !important;font-size: 23px !important;line-height: 1.25 !important;font-weight: 700 !important}.entry-content[class] .schema-faq-question{font-family: var(--ds-font-head) !important;font-size: 19px !important;line-height: 1.4 !important;font-weight: 700 !important;color: var(--ds-blue-deep) !important}.entry-content[class] .ts-source,.entry-content[class] .ts-hint,.entry-content[class] .ts-placeholder,.entry-content[class] .ht-spec-label,.entry-content[class] .ht-spec-value,.entry-content[class] .ht-step-indicator,.entry-content[class] .ht-badge,.entry-content[class] .idx,.entry-content[class] .xlink,.entry-content[class] .cat-note,.entry-content[class] .aobo-card-note,.entry-content[class] .card-desig,.entry-content[class] .k,.entry-content[class] .v,.entry-content[class] .note,.entry-content[class] .aobo-note{font-family: var(--ds-font-head) !important;font-size: 15px !important;line-height: 1.6 !important;font-weight: 400 !important}.entry-content[class] .ht-spec-label,.entry-content[class] .idx,.entry-content[class] .k{font-weight: 700 !important}.entry-content[class] .aobo-note,.entry-content[class] .note{font-family: var(--ds-font-body) !important;color: var(--ds-muted) !important}.entry-content[class] .chip{font-family: var(--ds-font-head) !important;font-size: 13px !important;font-weight: 700 !important}.entry-content[class] .kicker,.entry-content[class] .eyebrow,.entry-content[class] .aobo-eyebrow{display: inline-flex !important;align-items: center;gap: 7px;margin: 0 0 14px !important;padding: 6px 14px !important;border: 1px solid var(--ds-border) !important;border-radius: 999px !important;background: #ffffff !important;color: var(--ds-blue) !important;font-family: var(--ds-font-head) !important;font-size: 13px !important;font-weight: 700 !important;letter-spacing: 0 !important;text-transform: none !important}@media (max-width: 760px){.entry-content[class] h1{font-size: clamp(22px,6.4vw,min(34px,var(--h1-max,34px))) !important}.entry-content[class] h2{font-size: 25px !important}.entry-content[class] h3{font-size: 20px !important}.entry-content[class] h4{font-size: 17px !important}.entry-content[class] p,.entry-content[class] li{font-size: 16px !important}.entry-content[class] table th,.entry-content[class] table td{font-size: 14px !important;padding: 11px 12px !important}.entry-content[class] .aobo-hero{padding: 30px 22px}.entry-content[class] .aobo-final-cta{padding: 26px 22px}.entry-content[class] .aobo-final-cta .aobo-btn{width: 100%}}\n<\/style>\n<section class=\"aobo-ht-ref ts-props\">\n<div class=\"aobo-wrap\">\n<div class=\"ts-hero\">\n<div class=\"ts-hero-top\">\n<div class=\"ts-kicker\"><span><\/span>S5 | Shock-Resisting Tool Steel<\/div>\n<h1 style=\"--h1-max:64px\">S5 Tool Steel Heat Treatment<\/h1>\n<p>A shock-resisting silicon-manganese steel, with the hardening cycle and the tempering line the source card prints for it. A reference summary of published practice and not an Aobo Steel specification.<\/p><\/div>\n<div class=\"ts-tool-area\">\n<h2 class=\"ts-h2\">S5 in the shock-resisting group<\/h2>\n<p class=\"ts-p\">S5 belongs to the shock-resisting group, the grades a shop reaches for when a tool takes repeated heavy impact and edge holding matters less. The card hardens it in oil from 1725 \u00b0F (940 \u00b0C), and the silicon at 1.90% on the card is what lifts the elastic limit, while the manganese at 0.90% carries the hardenability through the oil quench. S1 and S7 sit in the same group and go into the quench in the same way.<\/p>\n<p class=\"ts-p\">The card is shop reference information rather than a specification. It prints one preheat step, one hardening temperature and one quench medium, then a tempering table with a single hardness figure on each row and no tolerance band anywhere. A first tool cut from a new heat of steel is worth running as a trial before the cycle goes onto a production tool.<\/p>\n<h2 class=\"ts-h2\">Chemistry of S5<\/h2>\n<h3 class=\"ts-h3\">Elements the reference card lists, percent<\/h3>\n<div class=\"ts-table-wrap\">\n<table class=\"ts-table\" style=\"min-width:520px;\">\n<thead><tr><th>Element<\/th><th>Percent<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"ts-grade\">Carbon<\/td><td class=\"ts-num\">0.60<\/td><\/tr><tr><td class=\"ts-grade\">Manganese<\/td><td class=\"ts-num\">0.90<\/td><\/tr><tr><td class=\"ts-grade\">Silicon<\/td><td class=\"ts-num\">1.90<\/td><\/tr><tr><td class=\"ts-grade\">Chromium<\/td><td class=\"ts-num\">0.20<\/td><\/tr><tr><td class=\"ts-grade\">Molybdenum<\/td><td class=\"ts-num\">1.30<\/td><\/tr><tr><td class=\"ts-grade\">Vanadium<\/td><td class=\"ts-num\">0.30<\/td><\/tr><\/tbody>\n<\/table>\n<\/div>\n<p class=\"ts-tcap\"><em>Source, heat treating reference information for S5, printed page 196.<\/em><\/p>\n<p class=\"ts-tcap\"><em>The card prints one figure for each element rather than a specification range. Tungsten, cobalt and sulfur appear on the card with no figure against them and are left out of the table rather than shown as a zero.<\/em><\/p>\n<p class=\"ts-p\">Carbon at 0.60% with silicon at 1.90% and manganese at 0.90% is the combination that makes S5 a shock steel, one that bends under impact instead of cracking. Chromium at 0.20% and molybdenum at 1.30% give the hardenability that lets an oil quench reach through the section, and vanadium at 0.30% holds grain size through the hardening temperature. The card lists tungsten, cobalt and sulfur with no figure against them, so those rows are left out of the table rather than printed as a zero. Composition data in the table is for general reference only, actual values vary by standard, mill and heat number, so confirm the figures against the material test certificate of the heat or ask Aobo Steel.<\/p>\n<h2 class=\"ts-h2\">Hardening S5<\/h2>\n<h3 class=\"ts-h3\">Preheat, hardening temperature and quench<\/h3>\n<div class=\"ts-table-wrap\">\n<table class=\"ts-table\" style=\"min-width:620px;\">\n<thead><tr><th>Step<\/th><th>S5<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"ts-grade\">Preheat<\/td><td class=\"ts-num\">1200 \u00b0F (650 \u00b0C)<\/td><\/tr><tr><td class=\"ts-grade\">Harden<\/td><td class=\"ts-num\">1725 \u00b0F (940 \u00b0C)<\/td><\/tr><tr><td class=\"ts-grade\">Quench<\/td><td class=\"ts-num\">Oil quench<\/td><\/tr><\/tbody>\n<\/table>\n<\/div>\n<p class=\"ts-tcap\"><em>Source, heat treating reference information for S5, printed page 196.<\/em><\/p>\n<p class=\"ts-tcap\"><em>The card attaches no size condition to the preheat, so the step is not marked as one that only larger sections need. It prints one hardening temperature and one quench medium for the grade, with no air or salt alternative alongside the oil quench.<\/em><\/p>\n<p class=\"ts-p\">The preheat of 1200 \u00b0F (650 \u00b0C) takes the section through the range where the steel takes a shock least well, and the card attaches no size condition to it, so the step applies to every load rather than only to heavy sections. The hardening temperature of 1725 \u00b0F (940 \u00b0C) is followed by an oil quench, with no air or salt alternative printed beside it. On a shock grade the oil is the middle road between water and air, fast enough to reach the hardness the tempering table starts from and slow enough to leave the section in one piece.<\/p>\n<h2 class=\"ts-h2\">Tempering response of S5<\/h2>\n<h3 class=\"ts-h3\">Hardness left by each tempering temperature<\/h3>\n<div class=\"ts-table-wrap\">\n<table class=\"ts-table\" style=\"min-width:620px;\">\n<thead><tr><th>Temper, \u00b0F<\/th><th>\u00b0C<\/th><th>S5, HRC<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"ts-grade\">As quenched<\/td><td class=\"ts-num\">No temper<\/td><td class=\"ts-num\">61<\/td><\/tr><tr><td class=\"ts-grade\">300<\/td><td class=\"ts-num\">150<\/td><td class=\"ts-num\">60<\/td><\/tr><tr><td class=\"ts-grade\">400<\/td><td class=\"ts-num\">205<\/td><td class=\"ts-num\">59<\/td><\/tr><tr><td class=\"ts-grade\">600<\/td><td class=\"ts-num\">315<\/td><td class=\"ts-num\">57<\/td><\/tr><tr><td class=\"ts-grade\">800<\/td><td class=\"ts-num\">425<\/td><td class=\"ts-num\">52<\/td><\/tr><tr><td class=\"ts-grade\">1000<\/td><td class=\"ts-num\">540<\/td><td class=\"ts-num\">47<\/td><\/tr><tr><td class=\"ts-grade\">1200<\/td><td class=\"ts-num\">650<\/td><td class=\"ts-num\">41<\/td><\/tr><\/tbody>\n<\/table>\n<\/div>\n<p class=\"ts-tcap\"><em>Source, heat treating reference information for S5, printed page 196.<\/em><\/p>\n<p class=\"ts-tcap\"><em>The card steps the tempering temperatures by 100 \u00b0F from 300 \u00b0F to 1200 \u00b0F and prints one Rockwell C figure on each row, with no row at 500 \u00b0F or 700 \u00b0F. The first row is the hardness as quenched, before any temper.<\/em><\/p>\n<p class=\"ts-p\">As quenched the grade sits at 61 HRC and the line falls from there, with no secondary hardening peak to search for. The first temper at 300 \u00b0F (150 \u00b0C) leaves 60 HRC, 800 \u00b0F (425 \u00b0C) leaves 52 HRC and the last row at 1200 \u00b0F (650 \u00b0C) leaves 41 HRC. A shock tool is usually tempered in the upper half of the table, where the hardness given up buys toughness, and the twenty point fall from the as-quenched hardness to the last row is what makes that choice a wide one.<\/p>\n<div class=\"ts-dl\">\n          <div class=\"ts-dl-txt\"><strong>S5 Tool Steel Heat Treatment, printable PDF<\/strong>\n          The chemistry, the hardening cycle and the tempering response for S5 from this page in one PDF, with our contact details.<\/div>\n          <a class=\"ts-dl-btn\" href=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/09\/Aobo-Steel-S5-Tool-Steel-Heat-Treatment.pdf\" download>\n            <svg viewBox=\"0 0 24 24\" aria-hidden=\"true\"><path d=\"M12 3v12m0 0 4.5-4.5M12 15l-4.5-4.5M4 20h16\"\/><\/svg>\n            Download PDF, 372 KB\n          <\/a>\n        <\/div>\n<h2 class=\"ts-h2\">Related reference data<\/h2>\n<p class=\"ts-p\">The grades that sit around S5 in the shock-resisting group are set out on the <a href=\"https:\/\/aobosteel.com\/tool-steels-for-chipping-resistance\/\">tool steels for chipping resistance page<\/a>, and the impact toughness the group is bought for is charted on the <a href=\"https:\/\/aobosteel.com\/tool-steel-impact-toughness-chart\/\">tool steel impact toughness chart<\/a>. Tempering bands alone are on the <a href=\"https:\/\/aobosteel.com\/tool-steel-tempering-chart\/\">tool steel tempering chart<\/a>, hardening and tempering bands across every group are on the <a href=\"https:\/\/aobosteel.com\/tool-steel-hardening-tempering-chart\/\">tool steel hardening and tempering chart<\/a>, and the composition ranges of the S series are on the <a href=\"https:\/\/aobosteel.com\/tool-steel-composition-chart\/\">tool steel composition chart<\/a>. Stock sizes of the shock-resisting grades are on the <a href=\"https:\/\/aobosteel.com\/s1-tool-steel\/\">S1 tool steel page<\/a> and the <a href=\"https:\/\/aobosteel.com\/s7-tool-steel\/\">S7 tool steel page<\/a>.<\/p>\n<p class=\"ts-source\">Reference data compiled from Heat Treatment, Selection, and Application of Tool Steels (William E. Bryson, second edition, Hanser). The chemistry, the hardening cycle and the tempering response for S5 come from the heat treating reference information on printed page 196.<\/p>\n<\/div><\/div><\/div><\/section>\n\n","protected":false},"excerpt":{"rendered":"<p>S5 | Shock-Resisting Tool Steel S5 Tool Steel Heat Treatment A shock-resisting silicon-manganese steel, with the hardening cycle and the tempering line the source card prints for it. A reference summary of published practice and not an Aobo Steel specification. S5 in the shock-resisting group S5 belongs to the shock-resisting group, the grades a shop [&hellip;]<\/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":"default","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":"default","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-19803","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.6 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>S5 Tool Steel Heat Treatment and Tempering Chart<\/title>\n<meta name=\"description\" content=\"The hardening temperature, oil quench and tempering response of S5 tool steel, with its chemistry and the hardness left at each tempering temperature.\" \/>\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\/s5-tool-steel-heat-treatment\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S5 Tool Steel Heat Treatment\" \/>\n<meta property=\"og:description\" content=\"The hardening temperature, oil quench and tempering response of S5 tool steel, with its chemistry and the hardness left at each tempering temperature.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/s5-tool-steel-heat-treatment\/\" \/>\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=\"2026-09-27T11:53:55+00:00\" \/>\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=\"4\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s5-tool-steel-heat-treatment\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s5-tool-steel-heat-treatment\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"S5 Tool Steel Heat Treatment\",\"datePublished\":\"2026-09-25T19:11:07+00:00\",\"dateModified\":\"2026-09-27T11:53:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s5-tool-steel-heat-treatment\\\/\"},\"wordCount\":855,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s5-tool-steel-heat-treatment\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/s5-tool-steel-heat-treatment\\\/\",\"name\":\"S5 Tool Steel Heat Treatment and Tempering Chart\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"datePublished\":\"2026-09-25T19:11:07+00:00\",\"dateModified\":\"2026-09-27T11:53:55+00:00\",\"description\":\"The hardening temperature, oil quench and tempering response of S5 tool steel, with its chemistry and the hardness left at each tempering temperature.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s5-tool-steel-heat-treatment\\\/#breadcrumb\"},\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/s5-tool-steel-heat-treatment\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s5-tool-steel-heat-treatment\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"S5 Tool Steel Heat Treatment\"}]},{\"@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 SEO Premium plugin. -->","yoast_head_json":{"title":"S5 Tool Steel Heat Treatment and Tempering Chart","description":"The hardening temperature, oil quench and tempering response of S5 tool steel, with its chemistry and the hardness left at each tempering temperature.","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\/s5-tool-steel-heat-treatment\/","og_locale":"ko_KR","og_type":"article","og_title":"S5 Tool Steel Heat Treatment","og_description":"The hardening temperature, oil quench and tempering response of S5 tool steel, with its chemistry and the hardness left at each tempering temperature.","og_url":"https:\/\/aobosteel.com\/ko\/s5-tool-steel-heat-treatment\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-09-27T11:53:55+00:00","twitter_card":"summary_large_image","twitter_misc":{"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"4\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/s5-tool-steel-heat-treatment\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/s5-tool-steel-heat-treatment\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"S5 Tool Steel Heat Treatment","datePublished":"2026-09-25T19:11:07+00:00","dateModified":"2026-09-27T11:53:55+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/s5-tool-steel-heat-treatment\/"},"wordCount":855,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"inLanguage":"ko-KR"},{"@type":"WebPage","@id":"https:\/\/aobosteel.com\/s5-tool-steel-heat-treatment\/","url":"https:\/\/aobosteel.com\/s5-tool-steel-heat-treatment\/","name":"S5 Tool Steel Heat Treatment and Tempering Chart","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"datePublished":"2026-09-25T19:11:07+00:00","dateModified":"2026-09-27T11:53:55+00:00","description":"The hardening temperature, oil quench and tempering response of S5 tool steel, with its chemistry and the hardness left at each tempering temperature.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/s5-tool-steel-heat-treatment\/#breadcrumb"},"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/s5-tool-steel-heat-treatment\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/s5-tool-steel-heat-treatment\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"S5 Tool Steel Heat Treatment"}]},{"@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":"S5 | Shock-Resisting Tool Steel S5 Tool Steel Heat Treatment A shock-resisting silicon-manganese steel, with the hardening cycle and the tempering line the source card prints for it. A reference summary of published practice and not an Aobo Steel specification. S5 in the shock-resisting group S5 belongs to the shock-resisting group, the grades a shop&hellip;","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":"S5 | Shock-Resisting Tool Steel S5 Tool Steel Heat Treatment A shock-resisting silicon-manganese steel, with the hardening cycle and the tempering line the source card prints for it. A reference summary of published practice and not an Aobo Steel specification. S5 in the shock-resisting group S5 belongs to the shock-resisting group, the grades a shop&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/19803","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=19803"}],"version-history":[{"count":4,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/19803\/revisions"}],"predecessor-version":[{"id":20107,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/19803\/revisions\/20107"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=19803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}