{"id":15065,"date":"2026-05-07T09:02:44","date_gmt":"2026-05-07T01:02:44","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=15065"},"modified":"2026-10-18T12:17:13","modified_gmt":"2026-10-18T04:17:13","slug":"a2-tool-steel-hardness","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/a2-tool-steel-hardness\/","title":{"rendered":"A2 \uacf5\uad6c\uac15 \uacbd\ub3c4: 57\u201362 HRC, \ud15c\ud37c\ub9c1 \ucc28\ud2b8 \ubc0f \uc5b4\ub2d0\ub9c1 \ub370\uc774\ud130"},"content":{"rendered":"<h1 id=\"h-a2-tool-steel-hardness-chart-and-heat-treatment-hrc-guide\" class=\"wp-block-heading\">A2 \uacf5\uad6c\uac15 \uacbd\ub3c4\ud45c \ubc0f \uc5f4\ucc98\ub9ac HRC \uac00\uc774\ub4dc<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/aobosteel.com\/ko\/a2-tool-steel\/\">A2 \uacf5\uad6c\uac15<\/a> \uc77c\ubc18\uc801\uc73c\ub85c \uacbd\ud654 \ubc0f \ub728\uc784 \ud6c4 \uacbd\ub3c4\uac00 57-62 HRC\uc785\ub2c8\ub2e4 <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-hardening-tempering-chart\/\">\uacbd\ud654 \ubc0f \ub728\uc784<\/a>, which is the standard working hardness range for punches, dies, gauges, forming tools, and other cold-work tooling applications. In the annealed condition, A2 is typically supplied at about 200-250 HB for machining before heat treatment. After quenching, A2 can reach about 63.5-65 HRC, and sub-zero or cryogenic treatment may slightly increase as-quenched hardness to about 65-66 HRC.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A2\uac15\uc758 \ucd5c\uc885 \uacbd\ub3c4\ub294 \ub0b4\ub9c8\ubaa8\uc131\uacfc \uc778\uc131 \uc0ac\uc774\uc758 \uade0\ud615\uc744 \uace0\ub824\ud558\uc5ec \uacb0\uc815\ub429\ub2c8\ub2e4. \uacbd\ub3c4\uac00 \ub192\uc744\uc218\ub85d \ub0a0 \uc720\uc9c0\ub825\uacfc \ub0b4\ub9c8\ubaa8\uc131\uc774 \ud5a5\uc0c1\ub418\ub294 \ubc18\uba74, \uacbd\ub3c4\uac00 \ub0ae\uc744\uc218\ub85d \ucda9\uaca9\uc774\ub098 \uce21\uba74 \ud558\uc911\uc744 \ubc1b\uc744 \ub54c \uae68\uc9c0\uac70\ub098 \uae08\uc774 \uac08 \uc704\ud5d8\uc774 \uc904\uc5b4\ub4ed\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-what-is-the-hardness-of-a2-tool-steel\" class=\"wp-block-heading\">A2 \uacf5\uad6c\uac15\uc758 \uacbd\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A2 \uacf5\uad6c\uac15\uc758 \uacbd\ub3c4\ub294 \ucd5c\uc885 \uc0ac\uc6a9\uc744 \uc704\ud574 \uc5b4\ub2d0\ub9c1, \ub2f4\uae08\uc9c8, \uadf9\uc800\uc628 \ucc98\ub9ac \ub610\ub294 \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub418\uc5c8\ub294\uc9c0\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">A2 \uacf5\uad6c\uac15 \uc0c1\ud0dc<\/th><th class=\"has-text-align-left\" data-align=\"left\">\uc77c\ubc18\uc801\uc778 \uacbd\ub3c4<\/th><th class=\"has-text-align-left\" data-align=\"left\">\uc758\ubbf8<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc5b4\ub2d0\ub9c1 \uc870\uac74<\/td><td class=\"has-text-align-left\" data-align=\"left\">200-250 HB<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uac00\uacf5\ud558\uae30\uc5d0 \ucda9\ubd84\ud788 \ubd80\ub4dc\ub7fd\ub2e4<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc801\uc808\ud55c \uc5b4\ub2d0\ub9c1 \uc870\uac74<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ubcf4\ud1b5 \ucd5c\ub300 \uc57d 235 HB\uae4c\uc9c0\uc785\ub2c8\ub2e4.<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc81c\uc5b4\ub41c \uac00\uacf5 \uac00\ub2a5 \uc870\uac74<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\ub2f4\uae08\uc9c8 \uc0c1\ud0dc<\/td><td class=\"has-text-align-left\" data-align=\"left\">63.5-65 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub9e4\uc6b0 \ub2e8\ub2e8\ud558\uc9c0\ub9cc \uc77c\ubc18\uc801\uc778 \uc6a9\ub3c4\ub85c \uc0ac\uc6a9\ud558\uae30\uc5d0\ub294 \ub108\ubb34 \uc798 \ubd80\uc11c\uc9d1\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc601\ud558 \ub610\ub294 \uadf9\uc800\uc628 \ucc98\ub9ac\ub85c \uae09\ub7ad<\/td><td class=\"has-text-align-left\" data-align=\"left\">65-66 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ubcc0\ud0dc\ub85c \uc778\ud55c \ub354 \ub192\uc740 \uacbd\ub3c4<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc801\uc808\ud55c \uc791\uc5c5 \uc870\uac74<\/td><td class=\"has-text-align-left\" data-align=\"left\">57-62 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc77c\ubc18\uc801\uc778 \uc2e4\uc81c \uacbd\ub3c4 \ubc94\uc704<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\ub0b4\ub9c8\ubaa8\uc131 \uc6b0\uc120 \uc21c\uc704<\/td><td class=\"has-text-align-left\" data-align=\"left\">60-62 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ud380\uce58, \ub2e4\uc774, \uac8c\uc774\uc9c0 \ubc0f \ub9c8\ubaa8 \uce21\uc815 \uacf5\uad6c\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uac15\uc778\ud568 \uc6b0\uc120 \uc21c\uc704<\/td><td class=\"has-text-align-left\" data-align=\"left\">56-58 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uae68\uc9d0, \ucda9\uaca9 \ub610\ub294 \uade0\uc5f4\uc774 \uc6b0\ub824\ub418\ub294 \uacf3\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uad6c\ub9e4\uc790\uc640 \uacf5\uad6c \uc81c\uc791\uc790\uc5d0\uac8c \uc788\uc5b4 A2\uac15\uc758 \uac00\uc7a5 \uc720\uc6a9\ud55c \uacbd\ub3c4\ub294 \ud15c\ud37c\ub9c1 \ud6c4 \ucd5c\uc885 \uac00\uacf5 \uacbd\ub3c4\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-a2-tool-steel-hardness-by-condition\" class=\"wp-block-heading\">A2 \uacf5\uad6c\uac15\uc758 \uc0c1\ud0dc\ubcc4 \uacbd\ub3c4<\/h2>\n\n\n\n<h3 id=\"h-1-annealed-condition\" class=\"wp-block-heading\">1. \uc5b4\ub2d0\ub9c1 \uc870\uac74<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A2 \uacf5\uad6c\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uac00\uacf5 \uc804\uc5d0 \ud480\ub9bc \uc0c1\ud0dc\ub85c \uacf5\uae09\ub418\uba70, \ub2e4\uc74c \ub2e8\uacc4\ub294 <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-heat-treatment-guide\/\">\ucd5c\uc885 \uc5f4\ucc98\ub9ac<\/a>. \uc77c\ubc18\uc801\uc778 \ud480\ub9bc \uacbd\ub3c4\ub294 \uc57d 200-250 HB\uc785\ub2c8\ub2e4. \ub9ce\uc740 \uc0ac\uc591\uc5d0\uc11c \ud480\ub9bc A2\ub97c \uc57d 201-229 HB\ub85c \uad00\ub9ac\ud558\uba70, \ud45c\uc900 \ubc0f \uacf5\uae09 \uc870\uac74\uc5d0 \ub530\ub77c \uc0c1\ud55c\uc774 \ub54c\ub54c\ub85c \uc57d 235 HB \ub610\ub294 248 HBW\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-2-as-quenched-condition\" class=\"wp-block-heading\">2. \ub2f4\uae08\uc9c8 \uc9c1\ud6c4 \uc0c1\ud0dc<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ubc0f \ub2f4\uae08\uc9c8 \ud6c4 A2\ub294 \ub192\uc740 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud569\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \uc9c1\ud6c4 \uacbd\ub3c4\ub294 \uc8fc\ub85c \uacbd\ud654 \uc628\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ub2f4\uae08\uc9c8 \uc9c1\ud6c4\uc758 \uc77c\ubc18\uc801\uc778 \uacbd\ub3c4<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">1700\u00b0F \/ 925\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc57d 63.5 HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">1750\u00b0F \/ 955\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc57d 64.5 HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">1775-1800\u00b0F \/ 970-980\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc57d 64~65 HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\ub2f4\uae08\uc9c8 \ud6c4 \uc601\ud558 \ub610\ub294 \uadf9\uc800\uc628 \ucc98\ub9ac<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc57d 65~66 HRC<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18 \ub2f4\uae08\uc9c8\uc740 A2\uc5d0 \uc57d 16-18%\ub97c \ub0a8\uae38 \uc218 \uc788\uc2b5\ub2c8\ub2e4 <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-size-change-in-heat-treatment\/\">\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8<\/a> A2\uc5d0\uc11c. \uc601\ud558 \ub610\ub294 \uadf9\uc800\uc628 \ucc98\ub9ac\ub294 \uc774 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc758 \uc77c\ubd80\ub97c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub85c \ubcc0\ud0dc\uc2dc\ucf1c \uacbd\ub3c4\ub97c \uc57d\uac04 \uc99d\uac00\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\uc9c0\ub9cc \ub2f4\uae08\uc9c8\ub41c A2\ub294 \uc751\ub825\uc774 \ub9e4\uc6b0 \ub192\uace0 \ucde8\uc131\uc774 \uac15\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc0ac\uc6a9 \uc804\uc5d0 \ubc18\ub4dc\uc2dc \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub97c \ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-3-tempered-working-condition\" class=\"wp-block-heading\">3. \uc801\uc808\ud55c \uc791\uc5c5 \uc870\uac74<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5f4\ucc98\ub9ac \ud6c4, A2\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc57d 57~62 HRC\uc758 \uacbd\ub3c4\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc774\ub294 \uc0b0\uc5c5\uc6a9 \uacf5\uad6c\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc8fc\uc694 \uacbd\ub3c4 \ubc94\uc704\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ube14\ub7ad\ud0b9 \ub2e4\uc774, \ud380\uce58, \uac8c\uc774\uc9c0, <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-for-stamping-blanking-piercing-dies\/\">\uc131\ud615 \uacf5\uad6c<\/a>, \ubc0f \ub0b4\ub9c8\ubaa8\uc131 <a href=\"https:\/\/aobosteel.com\/ko\/cold-work-tool-steels\/\">\ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c<\/a>, 58-62 HRC\uac00 \uc77c\ubc18\uc801\uc785\ub2c8\ub2e4. \uacf5\uad6c\uac00 \ucda9\uaca9, \uce21\uba74 \ud558\uc911 \ub610\ub294 \uc5d0\uc9c0 \uce58\ud551\uc5d0 \ub178\ucd9c\ub418\uba74 \uc778\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud574 \uacbd\ub3c4\ub97c \uc885\uc885 56-58 HRC\ub85c \ub0ae\ucda5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-a2-tool-steel-tempering-chart-hrc-by-temperature\" class=\"wp-block-heading\">A2 \uacf5\uad6c\uac15\uc758 \uc628\ub3c4\ubcc4 \uc5f4\ucc98\ub9ac \ucc28\ud2b8: HRC (\uc5f4\uacbd\ub3c4)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A2\uac15\uc740 \ub2f4\uae08\uc9c8 \uc9c1\ud6c4, \uc77c\ubc18\uc801\uc73c\ub85c \ubd80\ud488\uc774 \uc57d 50~66\u00b0C(120~150\u00b0F)\uae4c\uc9c0 \ub0c9\uac01\ub41c \ud6c4\uc5d0 \ud15c\ud37c\ub9c1\ud574\uc57c \ud569\ub2c8\ub2e4. \ud15c\ud37c\ub9c1\uc740 \uc794\ub958 \uc751\ub825\uc744 \uac10\uc18c\uc2dc\ud0a4\uace0, \uc778\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uba70, \ucd5c\uc885 \uacbd\ub3c4\ub97c \uacb0\uc815\ud569\ub2c8\ub2e4. \uce58\uc218 \uc548\uc815\uc131\uc774 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0\ub294 \uc774\uc911 \ud15c\ud37c\ub9c1\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\uc870\uac74 \ub610\ub294 \uc628\ub3c4<\/th><th class=\"has-text-align-left\" data-align=\"left\">\uc77c\ubc18\uc801\uc778 \uacbd\ub3c4<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">\uae09\ub7ad<\/td><td class=\"has-text-align-left\" data-align=\"left\">63.5-65 HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc601\ud558 \ub610\ub294 \uadf9\uc800\uc628 \ucc98\ub9ac\ub85c \uae09\ub7ad<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uacbd\ub3c4 \uc57d 65~66 HRC\uae4c\uc9c0<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">345-350\u00b0F \/ 175\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc57d 59.7~63 HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">400\u00b0F \/ 204\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uacbd\ub3c4 \uc57d 59.5~60 HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uadf9\uc800\uc628 \ucc98\ub9ac \ud6c4 400\u00b0F \/ 204\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc57d 61-62 HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">600\u00b0F \/ 315\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc57d 55.5 HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">900F \/ 480C<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc57d 51\uba85\uc758 HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">950-1000\u00b0F \/ 510-540\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc57d 54~57 HRC<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">1100\u00b0F \/ 595\u00b0C<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc57d 46~47 HRC<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A2\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc628\ub3c4\uac00 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \uacbd\ub3c4\ub97c \uc783\uc2b5\ub2c8\ub2e4 <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-tempering-chart\/\">\ud15c\ud37c\ub9c1 \uc628\ub3c4<\/a> \uc99d\uac00\ud569\ub2c8\ub2e4. \ud55c \uac00\uc9c0 \uc608\uc678\ub294 <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-hot-hardness-chart\/\">2\ucc28 \uacbd\ud654 \ubc94\uc704<\/a> \uc57d 950-1000F \/ 510-540C\uc5d0\uc11c \ubbf8\uc138 \ud569\uae08 \ud0c4\ud654\ubb3c\uc774 \uacbd\ub3c4\ub97c \ub2e4\uc2dc \uc57d 54-57 HRC\ub85c \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub192\uc740 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc694\uad6c\ub418\ub294 \ub300\ubd80\ubd84\uc758 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc758 \uacbd\uc6b0, \ub0ae\uc740 \ub728\uc784 \uc628\ub3c4\ub294 A2\ub97c 58-62 HRC\ub85c \uc720\uc9c0\ud569\ub2c8\ub2e4. \ub354 \ud070 \uc778\uc131\uc774\ub098 \uc548\uc815\uc131\uc774 \uc694\uad6c\ub418\ub294 \uacf5\uad6c\uc758 \uacbd\uc6b0 \ub354 \ub192\uc740 \ub728\uc784 \uc628\ub3c4\ub97c \uc120\ud0dd\ud560 \uc218 \uc788\uc9c0\ub9cc, \ucd5c\uc885 \uacbd\ub3c4\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub354 \ub0ae\uc544\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-how-heat-treatment-controls-a2-tool-steel-hardness\" class=\"wp-block-heading\">\uc5f4\ucc98\ub9ac\uac00 A2 \uacf5\uad6c\uac15\uc758 \uacbd\ub3c4\ub97c \uc81c\uc5b4\ud558\ub294 \ubc29\ubc95<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A2 \uacbd\ub3c4\ub294 \uc8fc\ub85c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4, \ub2f4\uae08\uc9c8 \uc18d\ub3c4, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8, \ub2e8\uba74 \ud06c\uae30 \ubc0f \ub728\uc784 \uc628\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\uc694\uc778<\/th><th class=\"has-text-align-left\" data-align=\"left\">A2 \uacbd\ub3c4\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uacbd\ud654 \uac00\ub2a5\uc131\uc744 \uc81c\uc5b4\ud569\ub2c8\ub2e4<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/quench-cracking-tool-steel\/\">\ub2f4\uae08\uc9c8 \uc18d\ub3c4<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ud615\uc131\uc744 \uc81c\uc5b4\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-hardenability-chart\/\">\ub2e8\uba74 \ud06c\uae30<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">\ucf54\uc5b4 \uacbd\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uac00 \uacfc\ub2e4\ud558\uba74 \uacbd\ub3c4\uc640 \uc548\uc815\uc131\uc774 \uc800\ud558\ub429\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc601\ud558 \ub610\ub294 \uadf9\uc800\uc628 \ucc98\ub9ac<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uacbd\ub3c4\ub97c \uc57d\uac04 \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\ud15c\ud37c\ub9c1 \uc628\ub3c4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ucd5c\uc885 \uc791\uc5c5 HRC\ub97c \uacb0\uc815\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc774\uc911 \ud15c\ud37c\ub9c1<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ubcc0\ud0dc \ud6c4 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uac00 \ub108\ubb34 \ub0ae\uc73c\uba74 A2\uac00 \ucd5c\ub300 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\uc9c0 \ubabb\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc18\ub300\ub85c \uc628\ub3c4\uac00 \ub108\ubb34 \ub192\uc73c\uba74 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uac00 \uacfc\ub3c4\ud558\uac8c \uc0dd\uc131\ub418\uc5b4 \uacbd\ub3c4\uc640 \uce58\uc218 \uc548\uc815\uc131\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A2\ub294 <a href=\"https:\/\/aobosteel.com\/ko\/air-hardening-tool-steel\/\">\uacf5\uae30 \uacbd\ud654 \uacf5\uad6c\uac15<\/a>. \ud06c\ub86c\uacfc \ubab0\ub9ac\ube0c\ub374\uc744 \ucda9\ubd84\ud788 \ud568\uc720\ud574 \uae4a\uac8c \uacbd\ud654\ub418\ubbc0\ub85c \ubcc0\ud615 \uc704\ud5d8\uc774 \uc801\uc2b5\ub2c8\ub2e4. \ub300\ud45c\uc801\uc778 \uc720\ub0c9 \uacbd\ud654 \uac15\uc885\uc740 <a href=\"https:\/\/aobosteel.com\/ko\/o1-tool-steel\/\">O1<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e8\uba74 \ud06c\uae30\ub294 \uc5ec\uc804\ud788 \uc911\uc694\ud569\ub2c8\ub2e4. A2\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc57d 4.5\uc778\uce58(114mm)\uae4c\uc9c0\uc758 \ub2e8\uba74\uc5d0\uc11c \ud6a8\uacfc\uc801\uc73c\ub85c \uacbd\ud654\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc57d 5\uc778\uce58(127mm) \uc774\uc0c1\uc5d0\uc11c\ub294 \uc911\uc2ec\ubd80\uac00 \ub108\ubb34 \ub290\ub9ac\uac8c \ub0c9\uac01\ub418\uc5b4 \ud45c\uba74\uacfc \ub3d9\uc77c\ud55c \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\uc9c0 \ubabb\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4, \ud15c\ud37c\ub9c1 \uc8fc\uae30, \ub2f4\uae08\uc9c8 \ubc29\ubc95 \ubc0f \uce58\uc218 \uc548\uc815\uc131 \uace0\ub824 \uc0ac\ud56d\uc5d0 \ub300\ud55c \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \uc804\uccb4 \uc790\ub8cc\ub97c \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. <a href=\"https:\/\/aobosteel.com\/ko\/a2-tool-steel-heat-treatment-guide\/\">A2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/a>.<\/p>\n\n\n\n<h2 id=\"h-recommended-a2-tool-steel-hardness-for-different-applications\" class=\"wp-block-heading\">\uc6a9\ub3c4\uc5d0 \ub530\ub978 \uad8c\uc7a5 A2 \uacf5\uad6c\uac15 \uacbd\ub3c4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc801\uc808\ud55c A2 \uacbd\ub3c4\ub294 \uacf5\uad6c\uac00 \ub354 \ub9ce\uc740 \ub0b4\ub9c8\ubaa8\uc131\uc744 \ud544\uc694\ub85c \ud558\ub294\uc9c0 \ub354 \ub9ce\uc740 \uc778\uc131\uc744 \ud544\uc694\ub85c \ud558\ub294\uc9c0\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\uc801\uc6a9 \ubd84\uc57c<\/th><th class=\"has-text-align-left\" data-align=\"left\">\uad8c\uc7a5 \uacbd\ub3c4<\/th><th class=\"has-text-align-left\" data-align=\"left\">\uc774\uc720<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-selection-for-blanking-and-piercing-dies\/\">\ube14\ub7ad\ud0b9 \ub2e4\uc774 \ubc0f \ud380\uce58, \uc7a5\uae30 \uc0dd\uc0b0<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">58-62 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub0b4\ub9c8\ubaa8\uc131\uacfc \ub0a0 \uc720\uc9c0\ub825\uc774 \ud5a5\uc0c1\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\ube14\ub7ad\ud0b9 \ub2e4\uc774 \ubc0f \ud380\uce58, \uc18c\ub7c9 \uc0dd\uc0b0\uc6a9<\/td><td class=\"has-text-align-left\" data-align=\"left\">58-60 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub0b4\ub9c8\ubaa8\uc131\uacfc \uc778\uc131\uc758 \uade0\ud615<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/selection-of-tool-steel-for-trimming-dies\/\">\ud53c\uc5b4\uc2f1 \ubc0f \ud2b8\ub9ac\ubc0d \ud380\uce58<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">58-60 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uce21\uba74 \ud558\uc911\uc744 \ubc1b\uc744 \ub54c \ud30c\uc190 \uc704\ud5d8\uc744 \uc904\uc5ec\uc90d\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-for-forming-drawing-bending-dies\/\">\ubca4\ub529 \ub2e4\uc774<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">58-60 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub0b4\ub9c8\ubaa8\uc131\uacfc \uc778\uc131\uc758 \uade0\ud615<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/best-tool-steels-for-deep-drawing-dies\/\">\uc778\ubc1c \ub2e4\uc774<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">58-62 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uae01\ud798 \ubc0f \ubbf8\ub044\ub7ec\uc9d0 \ub9c8\ubaa8\uc5d0 \uac15\ud568<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/selection-of-tool-steel-for-roll-forming-dies\/\">\uc131\ud615 \ubc0f \uc811\ud569 \ub864<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">58-62 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub0b4\ub9c8\ubaa8\uc131\uacfc \uc815\ud655\uc131\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\ub0c9\uac04 \uc2a4\uc6e8\uc774\uc9d5 \ub2e4\uc774<\/td><td class=\"has-text-align-left\" data-align=\"left\">56-60 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ubc18\ubcf5\uc801\uc778 \ucda9\uaca9\uc5d0\ub3c4 \ub354 \ub098\uc740 \ub0b4\uad6c\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc2a4\ud53c\ub2dd \ub9e8\ub4dc\ub9b4<\/td><td class=\"has-text-align-left\" data-align=\"left\">50-58 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uace0\uc555 \ud658\uacbd\uc5d0\uc11c\ub3c4 \uc6b0\uc218\ud55c \uc5f0\uc131\uc744 \ubc1c\ud718\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-for-coining-powder-compaction-dies\/\">\ucf54\uc774\ub2dd \ub2e4\uc774<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">58-60 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc555\ucd95 \uc751\ub825\uc5d0 \uc800\ud56d\ud569\ub2c8\ub2e4<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc5e0\ubcf4\uc2f1 \ub2e4\uc774 \ubc0f \ud380\uce58<\/td><td class=\"has-text-align-left\" data-align=\"left\">58-61 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub514\ud14c\uc77c\uc744 \uc720\uc9c0\ud558\uace0 \ud45c\uba74 \ub9c8\ubaa8\uc5d0 \ub300\ud55c \uc800\ud56d\uc131\uc744 \uac16\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/selection-of-steels-for-cold-extrusion\/\">\ub0c9\uac04 \uc555\ucd9c \ub2e4\uc774 \ubc0f \ud380\uce58<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">56-62 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ud558\uc911\uacfc \uacf5\uad6c \uc124\uacc4\uc5d0 \ub530\ub77c \ub2e4\ub985\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\ub2e4\uc774 \ubca0\uc774\uc2a4, \uc564\ube4c \ubc0f \ud380\uce58 \uc0dd\ud06c<\/td><td class=\"has-text-align-left\" data-align=\"left\">56-58 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ucda9\uaca9 \ud761\uc218\ub825 \ud5a5\uc0c1<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/selection-of-steels-for-shears\/\">\ub0c9\uac04 \uc804\ub2e8 \uce7c\ub0a0<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">58-63 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub0b4\uad6c\uc131\uc774 \ub6f0\uc5b4\ub09c \uc808\uc0ad\ub0a0<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uae43\ud39c\uacfc \ub179\uc544\uc6c3 \ud540<\/td><td class=\"has-text-align-left\" data-align=\"left\">59-63 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub05d\ubd80\ubd84 \ub9c8\ubaa8 \ubc0f \ud718\uc5b4\uc9d0\uc5d0 \uac15\ud568<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/selection-of-tool-steel-for-rolling-mill-rolls\/\">\ub0c9\uac04\uc555\uc5f0\uae30 \ub864<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">58-62 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uade0\uc77c\ud55c \ub0b4\ub9c8\ubaa8\uc131<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-for-gages-precision-tools\/\">\uac8c\uc774\uc9c0, \uc9c1\uac01\uc790, \uc9c1\uc120\uc790, \ud15c\ud50c\ub9bf<\/a><\/td><td class=\"has-text-align-left\" data-align=\"left\">58-62 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub0b4\ub9c8\ubaa8\uc131 \ubc0f \uce58\uc218 \uc548\uc815\uc131<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A2 \uacf5\uad6c\uac00 \uc2ec\ud55c \ucda9\uaca9 \uc791\uc5c5\uc5d0\uc11c \ubc18\ubcf5\uc801\uc73c\ub85c \uce58\ud551\ub418\ub294 \uacbd\uc6b0 \uacbd\ub3c4\ub97c \ub0ae\ucd94\ub294 \uac83\uc774 \ub3c4\uc6c0\uc774 \ub420 \uc218 \uc788\uc9c0\ub9cc \ud55c\uacc4\uac00 \uc788\uc2b5\ub2c8\ub2e4. \ud2b9\ud788 <a href=\"https:\/\/aobosteel.com\/ko\/tool-steels-for-chipping-resistance\/\">\uc911\ucda9\uaca9 \uc751\uc6a9 \ubd84\uc57c<\/a>, \ub354 \uc778\uc131\uc774 \uc88b\uc740 \ub4f1\uae09 <a href=\"https:\/\/aobosteel.com\/ko\/s7-tool-steel\/\">S7<\/a> A2 \uc6a9\uc9c0\ub97c \uc9c0\ub098\uce58\uac8c \uc5f0\ud654\uc2dc\ud0a4\ub294 \uac83\ubcf4\ub2e4 \ub354 \ub098\uc740 \uc120\ud0dd\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-a2-tool-steel-hardness-vs-d2-and-o1\" class=\"wp-block-heading\">A2 \uacf5\uad6c\uac15\uc758 \uacbd\ub3c4\uc640 D2 \ubc0f O1\uc758 \uacbd\ub3c4 \ube44\uad50<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A2, <a href=\"https:\/\/aobosteel.com\/ko\/d2-tool-steel\/\">D2<\/a>, and O1 can achieve similar HRC values, but they don\u2019t perform the same at the same hardness.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\ub4f1\uae09<\/th><th class=\"has-text-align-left\" data-align=\"left\">\ub2f4\uae08\uc9c8\ud615<\/th><th class=\"has-text-align-left\" data-align=\"left\">\uc77c\ubc18\uc801\uc778 \uc0ac\uc6a9 \uacbd\ub3c4<\/th><th class=\"has-text-align-left\" data-align=\"left\">\uc8fc\uc694 \uac15\uc810<\/th><th class=\"has-text-align-left\" data-align=\"left\">\uc8fc\uc694 \uc81c\ud55c \uc0ac\ud56d<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">O1<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc720\ub0c9 \uacbd\ud654<\/td><td class=\"has-text-align-left\" data-align=\"left\">58-60 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc6b0\uc218\ud55c \uc778\uc131\uacfc \uac04\ub2e8\ud55c \uc5f4\ucc98\ub9ac<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub0b4\ub9c8\ubaa8\uc131 \uc800\ud558 \ubc0f \ubcc0\ud615 \uc704\ud5d8 \uc99d\uac00<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">A2<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uacf5\uae30 \uacbd\ud654<\/td><td class=\"has-text-align-left\" data-align=\"left\">58-62 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub0b4\ub9c8\ubaa8\uc131, \uc778\uc131 \ubc0f \uce58\uc218 \uc548\uc815\uc131\uc758 \uade0\ud615<\/td><td class=\"has-text-align-left\" data-align=\"left\">D2\ub9cc\ud07c \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc88b\uc9c0\ub294 \uc54a\ub2e4<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">D2<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uacf5\uae30 \uacbd\ud654<\/td><td class=\"has-text-align-left\" data-align=\"left\">58-62 HRC<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub192\uc740 \ub0b4\ub9c8\ubaa8\uc131<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc778\uc131\uc774 \ub0ae\uace0 \ud30c\uc190 \uc704\ud5d8\uc774 \ub192\uc2b5\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">D2\ub294 \ud0c4\uc18c\uc640 \ud06c\ub86c \ud568\ub7c9\uc774 \ub354 \ub192\uc544 \ub354 \ub2e8\ub2e8\ud55c \ud0c4\ud654\ubb3c\uc744 \ud615\uc131\ud569\ub2c8\ub2e4 <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-carbide-types-and-hardness\/\">\ub354 \ub2e8\ub2e8\ud55c \ud0c4\ud654\ubb3c<\/a>. \uc774\ub294 D2\uc5d0 \ub354 \ub098\uc740 \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc81c\uacf5\ud558\uc9c0\ub9cc \uc778\uc131\uc740 \ub0ae\ucda5\ub2c8\ub2e4. O1\uc740 \ud569\uae08 \ud0c4\ud654\ubb3c\uc774 \uc801\uc5b4 \ub0b4\ub9c8\ubaa8\uc131\uc740 \ub0ae\uc9c0\ub9cc \uc801\ud569\ud55c \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c \uc88b\uc740 \uc778\uc131\uc744 \uc81c\uacf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A2 sits between them. It is tougher than D2 and more dimensionally stable than O1. This is why A2 is often selected when D2 is too brittle, and O1 isn\u2019t stable or wear-resistant enough.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc81c \uacf5\uad6c \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c \ub0b4\ub9c8\ubaa8\uc131, \uc778\uc131 \ubc0f \uce58\uc218 \uc548\uc815\uc131\uc744 \ube44\uad50\ud558\uace0 \uc788\ub2e4\uba74, <a href=\"https:\/\/aobosteel.com\/ko\/d2-vs-a2-tool-steel\/\">A2 vs D2 \uacf5\uad6c\uac15<\/a> \uadf8\ub9ac\uace0 <a href=\"https:\/\/aobosteel.com\/ko\/a2-vs-o1-tool-steel\/\">A2 vs O1 \uacf5\uad6c\uac15<\/a>.<\/p>\n\n\n\n<h2 id=\"h-common-problems-when-a2-tool-steel-does-not-reach-the-required-hardness\" class=\"wp-block-heading\">A2 \uacf5\uad6c\uac15\uc774 \uc694\uad6c\ub418\ub294 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\uc9c0 \ubabb\ud560 \ub54c \ubc1c\uc0dd\ud558\ub294 \uc77c\ubc18\uc801\uc778 \ubb38\uc81c\uc810<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A2\uac00 <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-heat-treatment-troubleshooting-chart\/\">\uc608\uc0c1 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\uc9c0 \ubabb\ud558\ub294 \uacbd\uc6b0<\/a>, \ubb38\uc81c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc5f4\ucc98\ub9ac \uc81c\uc5b4, \ub2e8\uba74 \ud06c\uae30 \ub610\ub294 \ud45c\uba74 \uc0c1\ud0dc\uc640 \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\ubb38\uc81c<\/th><th class=\"has-text-align-left\" data-align=\"left\">\uac00\ub2a5\uc131 \uc788\ub294 \uc6d0\uc778<\/th><th class=\"has-text-align-left\" data-align=\"left\">\uacb0\uacfc<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">\ub2f4\uae08\uc9c8 \ud6c4 \uacbd\ub3c4\uac00 \ub0ae\uc74c<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uac00 \ub108\ubb34 \ub0ae\uc74c<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uacbd\ud654 \ubc18\uc751\uc774 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc74c<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uace0\uc628 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ucc98\ub9ac \ud6c4 \ub0ae\uc740 \uacbd\ub3c4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uacfc\ub3c4\ud55c \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc5f0\ud55c \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub294 \uce21\uc815 \uacbd\ub3c4\ub97c \ub0ae\ucda5\ub2c8\ub2e4 <a href=\"https:\/\/aobosteel.com\/ko\/hardness-testing-methods\/\">\uce21\uc815 \uacbd\ub3c4<\/a><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\ud45c\uba74\uc740 \ubd80\ub4dc\ub7fd\uc9c0\ub9cc \ub0b4\ubd80\ub294 \ub2e8\ub2e8\ud558\ub2e4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ud0c8\ud0c4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ud45c\uba74 \ud0c4\uc18c \uc190\uc2e4\ub85c \uc778\ud574 \ud45c\uba74 \uacbd\ub3c4\uac00 \uc644\uc804\ud788 \ud655\ubcf4\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\ud070 \ub2e8\uba74\uc758 \uc18c\ud504\ud2b8 \ucf54\uc5b4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub0c9\uac01 \uc18d\ub3c4\uac00 \ub108\ubb34 \ub290\ub9bd\ub2c8\ub2e4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ud575\uc774 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub85c \uc644\uc804\ud788 \ubcc0\ud0dc\ub418\uc9c0 \uc54a\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\ucd5c\uc885 \uacbd\ub3c4\uac00 \ub108\ubb34 \ub0ae\uc74c<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub2f4\uae08\uc9c8 \uc628\ub3c4\uac00 \ub108\ubb34 \ub192\uc2b5\ub2c8\ub2e4.<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uac00 \uacfc\ub3c4\ud558\uac8c \uc5f0\ud654\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\uc5f0\uc0ad \ud6c4 \ubc1c\uc0dd\ud558\ub294 \uad6d\uc18c\uc801\uc778 \uc5f0\ud654 \ud604\uc0c1<\/td><td class=\"has-text-align-left\" data-align=\"left\">\uc5f0\uc0ad \uc911 \uc5f0\uc18c \ub610\ub294 \uacfc\uc5f4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\ud45c\uba74 \uacbd\ub3c4\uac00 \uace0\ub974\uc9c0 \uc54a\uac8c \ub429\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ud754\ud788 \uc800\uc9c0\ub974\ub294 \uc2e4\uc218 \uc911 \ud558\ub098\ub294 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uac00 \ub192\uc744\uc218\ub85d \uacbd\ub3c4\uac00 \ud56d\uc0c1 \ub192\uc544\uc9c4\ub2e4\uace0 \uc0dd\uac01\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. A2 \ud569\uae08\uc758 \uacbd\uc6b0, \uacfc\uc5f4\uc740 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub7c9\uc744 \uc99d\uac00\uc2dc\ucf1c \ucd5c\uc885 \uacbd\ub3c4\ub97c \uac10\uc18c\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-machining-allowance-chart\/\">\ud45c\uba74 \ud0c8\ud0c4<\/a> \ub610 \ub2e4\ub978 \uc77c\ubc18\uc801\uc778 \uc6d0\uc778\uc785\ub2c8\ub2e4. A2\uac00 \uc801\uc808\ud55c \ubcf4\ud638 \uc5c6\uc774 \uac00\uc5f4\ub418\uba74 \ud45c\uba74\uc774 \ud0c8\ud0c4\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucf54\uc5b4\ub294 \uc62c\ubc14\ub978 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud560 \uc218 \uc788\uc9c0\ub9cc \ud45c\uba74\uc740 \uc5f0\ud558\uac8c \ub0a8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e8\uba74 \ud06c\uae30\uac00 \ud074\uc218\ub85d \uacbd\ub3c4 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. A2\uac15\uc740 \uc2ec\ubd80 \uacbd\ud654 \ub2a5\ub825\uc774 \uc6b0\uc218\ud558\uc9c0\ub9cc, \ub2e8\uba74\uc774 \ub9e4\uc6b0 \ud074 \uacbd\uc6b0 \uc911\uc2ec\ubd80\uac00 \ub108\ubb34 \ub290\ub9ac\uac8c \ub0c9\uac01\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc57d 127mm(5\uc778\uce58) \uc774\uc0c1\uc77c \uacbd\uc6b0, \uacf5\uae30 \uc911\uc5d0\uc11c \ub0c9\uac01\ud560 \ub54c \uc911\uc2ec\ubd80 \uacbd\ub3c4\uac00 \ud45c\uba74 \uacbd\ub3c4\ubcf4\ub2e4 \ub0ae\uc544\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ubd80\uc801\uc808\ud55c \ub728\uc784\ub3c4 \uacbd\ub3c4\ub97c \ub0ae\ucd9c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub728\uc784 \uc628\ub3c4\uac00 \ubaa9\ud45c \uacbd\ub3c4\uc5d0 \ube44\ud574 \ub108\ubb34 \ub192\uc73c\uba74 \ucd5c\uc885 HRC\uac00 \ub0ae\uc544\uc9d1\ub2c8\ub2e4. \ub9cc\uc57d <a href=\"https:\/\/aobosteel.com\/ko\/blog\/tool-steel-surface-treatment\/\">\uc5f4\ucc98\ub9ac \ud6c4 \uc5f0\uc0ad<\/a> \uc774 \uacfc\ub3c4\ud55c \uc5f4\uc744 \ubc1c\uc0dd\uc2dc\ud0a4\uba74 \uad6d\ubd80 \uc5f0\ud654 \uad6c\uc5ed\uc774\ub098 \ubd88\uade0\uc77c\ud55c \ud45c\uba74 \uacbd\ub3c4\ub97c \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-related-pages\" class=\"wp-block-heading\">\uad00\ub828 \ud398\uc774\uc9c0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A2 \ud398\uc774\uc9c0:<\/strong> <a href=\"https:\/\/aobosteel.com\/ko\/a2-tool-steel-properties\/\">A2 \ud2b9\uc131<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/ko\/a2-steel-composition\/\">A2 \uc870\uc131<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/ko\/a2-tool-steel-machining-fabrication-guide\/\">A2 \uac00\uacf5<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A2 \ube44\uad50:<\/strong> <a href=\"https:\/\/aobosteel.com\/ko\/s7-vs-a2-tool-steel\/\">A2 vs S7<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/ko\/h13-vs-a2-tool-steel\/\">A2 vs H13<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/ko\/4140-vs-a2-tool-steel\/\">A2 vs 4140<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uacbd\ub3c4 \ucc38\uc870:<\/strong> <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-annealed-condition\/\">\ud480\ub9bc \ubc0f \uacf5\uae09 \uc0c1\ud0dc<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-hardness-conversion-calculator\/\">HRC \/ HB \ubcc0\ud658 \uacc4\uc0b0\uae30<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud559\ub144\ubcc4 \uac00\uc871:<\/strong> <a href=\"https:\/\/aobosteel.com\/ko\/s-series-tool-steel\/\">\ub0b4\ucda9\uaca9\uc131 \uacf5\uad6c\uac15<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/ko\/tool-steels\/\">\uacf5\uad6c\uac15 \ub4f1\uae09<\/a> \u00b7 <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-material-finder\/\">\uacf5\uad6c\uac15 \uc7ac\uc9c8 \ucc3e\uae30<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uacbd\ub3c4 \uac12\uc740 A2 \/ 1.2363 \/ SKD12\uc5d0 \ub300\ud574 \uc77c\ubc18\uc801\uc73c\ub85c \ubc1c\ud45c\ub41c \uc218\uce58\uc785\ub2c8\ub2e4. \uc2e4\uc81c \uacb0\uacfc\ub294 \ub85c, \ubd80\ud558 \ud615\uc0c1 \ubc0f \ub2f4\uae08\uc9c8\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c0\ubbc0\ub85c \uc790\uccb4 \uc5f4\ucc98\ub9ac \uad00\ud589\uc5d0 \ub300\ud574 \ubaa9\ud45c \ubc94\uc704\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A2 Tool Steel Hardness Chart and Heat Treatment HRC Guide A2 tool steel typically has a hardness of 57-62 HRC after hardening and tempering, which is the standard working hardness range for punches, dies, gauges, forming tools, and other cold-work tooling applications. In the annealed condition, A2 is typically supplied at about 200-250 HB for [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15068,"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":"disabled","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-15065","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>A2 Tool Steel Hardness: Rockwell 57-62 HRC Tempering Chart<\/title>\n<meta name=\"description\" content=\"A2 tool steel hardness by condition: annealed 200-250 HB, as-quenched 63.5-65 HRC, working range 57-62 HRC, and the tempering chart that sets each value.\" \/>\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\/a2-tool-steel-hardness\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A2 Tool Steel Hardness: 57\u201362 HRC, Tempering Chart &amp; 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