{"id":11734,"date":"2026-01-04T11:32:34","date_gmt":"2026-01-04T03:32:34","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11734"},"modified":"2026-06-06T11:46:39","modified_gmt":"2026-06-06T03:46:39","slug":"o2-tool-steel-heat-treatment","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/o2-tool-steel-heat-treatment\/","title":{"rendered":"O2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc"},"content":{"rendered":"<div class=\"wp-block-cover alignfull\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"337\" class=\"wp-block-cover__image-background wp-image-7233 size-large\" alt=\"\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1024x337.webp\" data-object-fit=\"cover\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1024x337.webp 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-300x99.webp 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-768x253.webp 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1536x506.webp 1536w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-18x6.webp 18w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3.webp 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#4e4b40\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<div class=\"wp-block-uagb-container uagb-block-29fc5c3c alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-advanced-heading uagb-block-33e61970\"><h6 class=\"uagb-heading-text\"><a href=\"https:\/\/aobosteel.com\/ko\/\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">\uc9d1<\/mark>     <\/a>&gt; <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-heat-treatment-guide\/\">    <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">\uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uae30\uc220\uc13c\ud130<\/mark>    <\/a> O2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/h6><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-8276fe18\"><h4 class=\"uagb-heading-text\"><em>\uc544\uc624\ubcf4 \uc2a4\ud2f8 | \uc911\uad6d\uc758 \uae00\ub85c\ubc8c \uacf5\uad6c\uac15 \uacf5\uae09\uc5c5\uccb4<\/em><\/h4><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-c04ecb9d\"><h1 class=\"uagb-heading-text\">O2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/h1><p class=\"uagb-desc-text\">\ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \ub0b4\ub9c8\ubaa8\uc131, \uac00\uacf5\uc131 \ubc0f \uce58\uc218 \uc548\uc815\uc131\uc744 \uc911\uc810\uc801\uc73c\ub85c \ub2e4\ub8ec O2 \uacf5\uad6c\uac15(DIN 1.2842\/JIS SKS31) \uc5f4\ucc98\ub9ac \uc9c0\uce68\uc785\ub2c8\ub2e4.<\/p><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button hs-cta-trigger-button hs-cta-trigger-button-230288465624\"><a class=\"wp-block-button__link wp-element-button\">\ube60\ub978 \ubb38\uc758\ub97c \uc694\uccad\ud558\uc138\uc694<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-5fc8f745 alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/aobosteel.com\/ko\/o2-tool-steel\/\">O2 \uacf5\uad6c\uac15<\/a> O2\uac15\uc740 \ub192\uc740 \uacbd\ub3c4, \uc6b0\uc218\ud55c \ub0b4\ub9c8\ubaa8\uc131, \uadf8\ub9ac\uace0 \uc5f4\ucc98\ub9ac \uc911 \ucd5c\uc18c\ud55c\uc758 \ubcc0\ud615\uc744 \ud2b9\uc9d5\uc73c\ub85c \ud558\ub294 \uc720\ub0c9\uc2dd \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uac15\uc785\ub2c8\ub2e4. \uc218\ub0c9\uc2dd \uac15\uacfc \ube44\uad50\ud588\uc744 \ub54c, O2\uac15\uc740 \uc644\uc804 \ub2f4\uae08\uc9c8 \ud6c4 \ub354 \uc6b0\uc218\ud55c \uce58\uc218 \uc548\uc815\uc131\uacfc \ub354 \ub192\uc740 \uc778\uc131\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<sup data-fn=\"6666d472-7e42-4e7d-8427-2b3ef148d636\" class=\"fn\"><a id=\"6666d472-7e42-4e7d-8427-2b3ef148d636-link\" href=\"#6666d472-7e42-4e7d-8427-2b3ef148d636\">1<\/a><\/sup>. O2 \uacf5\uad6c\uac15\uc758 \ub3d9\uae09 \ub4f1\uae09\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\uae30\uc900<\/th><th>\ub4f1\uae09<\/th><\/tr><\/thead><tbody><tr><td>\uc601\uc5b4\/\uc911\uad6d\uc5b4<\/td><td>1.2842 \/ 90MnCrV8<\/td><\/tr><tr><td>\uc9c0\uc774\uc2a4<\/td><td>SKS31<\/td><\/tr><tr><td>\uc601\uad6d<\/td><td>9Mn2V<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"h-a-quick-checklist-of-o2-tool-steel-heat-treatment\" class=\"wp-block-heading\">O2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac04\ud3b8 \uc810\uac80\ud45c<\/h2>\n\n\n\n<div class=\"schema-how-to wp-block-yoast-how-to-block\"><p class=\"schema-how-to-description\">O2 \uacf5\uad6c\uac15\uc758 \uc801\uc808\ud55c \uc5f4\ucc98\ub9ac\ub97c \uc704\ud574\uc11c\ub294 \uc608\uc5f4, \uacbd\ud654(\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654), \uc624\uc77c \ub2f4\uae08\uc9c8, \ud15c\ud37c\ub9c1\uc758 \uc21c\ucc28\uc801\uc778 \ub2e8\uacc4\ub97c \ub530\ub974\uc2ed\uc2dc\uc624.<br><\/p> <ol class=\"schema-how-to-steps\"><li class=\"schema-how-to-step\" id=\"how-to-step-1765333742053\"><strong class=\"schema-how-to-step-name\"><strong>\uc608\uc5f4<\/strong><\/strong> <p class=\"schema-how-to-step-text\">649~677\u00b0C(1200~1250\u00b0F)\ub85c \uace0\ub974\uac8c \uac00\uc5f4\ub420 \ub54c\uae4c\uc9c0 \uc608\uc5f4\ud558\uc2ed\uc2dc\uc624. \uc774\ub807\uac8c \ud558\uba74 \uc5f4 \ucda9\uaca9\uc744 \uc904\uc774\uace0 \ubcc0\ud615\uc774\ub098 \uade0\uc5f4\uc758 \uc704\ud5d8\uc744 \ub0ae\ucd9c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1765333794811\"><strong class=\"schema-how-to-step-name\"><strong>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654(\uacbd\ud654)<\/strong><\/strong> <p class=\"schema-how-to-step-text\">760~800\u00b0C(1400~1472\u00b0F)\ub85c \uac00\uc5f4\ud569\ub2c8\ub2e4. \ud569\uae08 \ud0c4\ud654\ubb3c\uc774 \uc6a9\ud574\ub418\uace0 \ubbf8\uc138 \uad6c\uc870\uac00 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub85c \ubcc0\ud658\ub429\ub2c8\ub2e4.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1765333800667\"><strong class=\"schema-how-to-step-name\"><strong>\ub2f4\uae08\uc9c8<\/strong><\/strong> <p class=\"schema-how-to-step-text\">\uc624\uc77c\uc5d0 \ub2f4\uae08\uc9c8\ud558\uc2ed\uc2dc\uc624. \uacf5\uc791\ubb3c\uc758 \uc628\ub3c4\uac00 66~93\u00b0C(150~200\u00b0F)\uc5d0 \ub3c4\ub2ec\ud558\uba74 \uba48\ucd94\uc2ed\uc2dc\uc624.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-1765333801451\"><strong class=\"schema-how-to-step-name\"><strong>\ub2f4\uae08\uc9c8<\/strong><\/strong> <p class=\"schema-how-to-step-text\">\uac00\uacf5\ubb3c\uc774 52~65\u00b0C(125~150\u00b0F)\ub85c \uc2dd\uc73c\uba74 \uc989\uc2dc \uc2dc\uc791\ud558\uc2ed\uc2dc\uc624. 150~260\u00b0C(300~500\u00b0F)\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud558\uc2ed\uc2dc\uc624. \ucd5c\uc18c \uc720\uc9c0 \uc2dc\uac04\uc740 \ub2e8\uba74\uc801 1\uc778\uce58\ub2f9 2\uc2dc\uac04(\ub2e8\uba74\uc801 1mm\ub2f9 4.7\ubd84)\uc785\ub2c8\ub2e4.<\/p> <\/li><\/ol><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\uc5f4\ucc98\ub9ac \uacf5\uc815<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\uc608\uc5f4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">649~677\u00b0C(1200~1250\u00b0F)\ub85c \uc608\uc5f4\ud558\uace0 \uacf5\uc791\ubb3c\uc774 \uc804\uccb4\uc801\uc73c\ub85c \uade0\uc77c\ud558\uac8c \uac00\uc5f4\ub420 \ub54c\uae4c\uc9c0 \uc720\uc9c0\ud569\ub2c8\ub2e4. \uc774\ub807\uac8c \ud558\uba74 \uac15\ucca0\uc774 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\ub85c\uc5d0 \ub4e4\uc5b4\uac08 \ub54c \ubc1c\uc0dd\ud558\ub294 \uc5f4 \ucda9\uaca9\uc744 \uc904\uc774\uace0 \ubcc0\ud615\uc774\ub098 \uade0\uc5f4 \uc704\ud5d8\uc744 \ub0ae\ucd9c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">760~800\u00b0C(1400~1472\u00b0F)\ub85c \uac00\uc5f4\ud558\uc2ed\uc2dc\uc624. \uc774 \uc628\ub3c4\uc5d0\uc11c \ud569\uae08 \ud0c4\ud654\ubb3c\uc774 \uc6a9\ud574\ub418\uace0 \ubbf8\uc138 \uad6c\uc870\uac00 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub85c \ubcc0\ud658\ub429\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \uc6a9\ub3c4\uc5d0\uc11c \uad8c\uc7a5\ub418\ub294 \ud45c\uc900 \uc628\ub3c4\ub294 790\u00b0C(1450\u00b0F)\uc785\ub2c8\ub2e4. \uc720\uc9c0 \uc2dc\uac04\uc744 \uc2e0\uc911\ud558\uac8c \uc870\uc808\ud558\uc2ed\uc2dc\uc624. \uc720\uc9c0 \uc2dc\uac04\uc774 \ub108\ubb34 \uae38\uba74 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ud568\ub7c9\uc774 \uc99d\uac00\ud558\uace0 \ucd5c\uc885 \uacbd\ub3c4\uac00 \uac10\uc18c\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub2f4\uae08\uc9c8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uac00\uacf5\ubb3c\uc758 \uc628\ub3c4\uac00 66~93\u00b0C(150~200\u00b0F)\uc5d0 \ub3c4\ub2ec\ud558\uba74 \uc624\uc77c\uc5d0 \ub2f4\uae08\uc9c8\ud558\uc2ed\uc2dc\uc624. \ub2f4\uae08\uc9c8 \uc624\uc77c\uc758 \uc628\ub3c4\ub294 50~70\u00b0C(120~160\u00b0F)\ub85c \uc720\uc9c0\ud558\uc2ed\uc2dc\uc624. \ubb3c\uc774\ub098 \uc5fc\uc218\ub294 \uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc774 \ub9e4\uc6b0 \ub192\uc2b5\ub2c8\ub2e4. \uc2a4\ud14c\uc778\ub9ac\uc2a4 \ud638\uc77c\ub85c \uac00\uacf5\ubb3c\uc744 \uac10\uc2f8\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \uc624\uc77c\uacfc\uc758 \uc811\ucd09\uc744 \ubc29\ud574\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"765\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/01\/O2-Tool-Steel-Isothermal-Transformation-Diagram.avif\" alt=\"O2 \uacf5\uad6c\uac15 \ub4f1\uc628 \ubcc0\ud658 \ub2e4\uc774\uc5b4\uadf8\ub7a8\" class=\"wp-image-11939\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/01\/O2-Tool-Steel-Isothermal-Transformation-Diagram.avif 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/01\/O2-Tool-Steel-Isothermal-Transformation-Diagram-300x224.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/01\/O2-Tool-Steel-Isothermal-Transformation-Diagram-768x574.avif 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/01\/O2-Tool-Steel-Isothermal-Transformation-Diagram-16x12.avif 16w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">O2 \uacf5\uad6c\uac15 \ub4f1\uc628 \ubcc0\ud658 \ub2e4\uc774\uc5b4\uadf8\ub7a8<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\ub2f4\uae08\uc9c8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uac00\uacf5\ubb3c\uc774 52~65\u00b0C(125~150\u00b0F)\ub85c \uc2dd\uc73c\uba74 \uc989\uc2dc \ud15c\ud37c\ub9c1\uc744 \uc2dc\uc791\ud558\uc2ed\uc2dc\uc624. \uc2e4\uc628\uc5d0 \ub3c4\ub2ec\ud558\ub3c4\ub85d \ub450\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. 150~260\u00b0C(300~500\u00b0F)\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud558\uc2ed\uc2dc\uc624. \ucd5c\uc18c \uc720\uc9c0 \uc2dc\uac04\uc740 \ub2e8\uba74\uc801 1\uc778\uce58\ub2f9 2\uc2dc\uac04(\ub2e8\uba74\uc801 1mm\ub2f9 4.7\ubd84)\uc774\uba70, \uc774\ud6c4 \uacf5\ub7ad\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uae4c\ub2e4\ub85c\uc6b4 \uc6a9\ub3c4\uc5d0\ub294 \uc774\uc911 \uc5f4\ucc98\ub9ac\uac00 \uad8c\uc7a5\ub429\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \uacf5\uad6c\ub294 175~205\u00b0C(345~400\u00b0F)\uc5d0\uc11c \ub2e8\uc77c \uc5f4\ucc98\ub9ac\ub97c \ud558\uba74 58~62 HRC\uc758 \uac00\uacf5 \uacbd\ub3c4\ub97c \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uacbd\ub3c4\uc640 \ud15c\ud37c\ub9c1 \uc628\ub3c4\uc758 \uad00\uacc4:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud15c\ud37c\ub9c1 \uc628\ub3c4 \u00b0C (\u00b0F)<\/th><th>\uacbd\ub3c4(HRC)<\/th><\/tr><\/thead><tbody><tr><td>150 (300)<\/td><td>62.5<\/td><\/tr><tr><td>205 (400)<\/td><td>59.5<\/td><\/tr><tr><td>260 (500)<\/td><td>56.5<\/td><\/tr><tr><td>315 (600)<\/td><td>54.0<\/td><\/tr><tr><td>370 (700)<\/td><td>52.0<\/td><\/tr><tr><td>425 (800)<\/td><td>49.5<\/td><\/tr><tr><td>480 (900)<\/td><td>46.0<\/td><\/tr><tr><td>540 (1000)<\/td><td>41.5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\uc77c\ubc18\uc801\uc778 \ubb38\uc81c\uc810 \ubc0f \ud574\uacb0\ucc45<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\ubcc0\ud615 \ubc0f \uce58\uc218 \ubcc0\ud654<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O2\uac15\uc758 \ubcc0\ud615\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uacfc\ub3c4\ud55c \ub2f4\uae08\uc9c8 \uc18d\ub3c4 \ub610\ub294 \ubd88\uade0\uc77c\ud55c \uac00\uc5f4\ub85c \uc778\ud574 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc81c\uc5b4 \ubc29\ubc95\uc740 \uc138 \uac00\uc9c0\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ub9c8\ub974\ud15c\ud37c\ub9c1:<\/strong> \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uc2dc\uc791 \uc628\ub3c4(Ms)\ubcf4\ub2e4 14~28\u00b0C(25~50\u00b0F) \ub192\uc740 \uc628\ub3c4\ub85c \uc720\uc9c0\ub418\ub294 \ub728\uac70\uc6b4 \uc624\uc77c\uc774\ub098 \uc6a9\uc735\uc5fc\uc5d0 \ub2f4\uac00 \ub2f4\uae08\uc9c8\uc744 \uc911\ub2e8\ud558\uace0, \uacf5\uc791\ubb3c\uc758 \uc628\ub3c4\uac00 \uade0\uc77c\ud574\uc9c8 \ub54c\uae4c\uc9c0 \uc720\uc9c0\ud55c \ub2e4\uc74c \uacf5\ub7ad\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc608\uc5f4:<\/strong> \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc804\uc5d0 650\u00b0C(1200\u00b0F)\ub85c \uc608\uc5f4\ud558\uba74 \uacbd\ud654 \uc911 \ubcc0\ud615\uc774 \ud06c\uac8c \uc904\uc5b4\ub4ed\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uac00\uacf5 \uc5ec\uc720:<\/strong> \ucd5c\uc885 \uc5f4\ucc98\ub9ac\ub85c \uc778\ud55c \ubcc0\ud615\uc744 \ubcf4\uc815\ud558\uae30 \uc704\ud574 \ud669\uc0ad \uac00\uacf5 \ud6c4 \ucda9\ubd84\ud55c \uc5ec\uc720 \uc7ac\ub8cc\ub97c \ub0a8\uaca8\ub450\uc2ed\uc2dc\uc624.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ub2f4\uae08\uc9c8 \uade0\uc5f4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc6d0\uc778\uc73c\ub85c\ub294 \uacfc\ub3c4\ud55c \uac00\uc5f4 \uc18d\ub3c4, \ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac, \uacf5\uad6c \ud615\uc0c1\uc758 \ub2e8\uba74\uc801 \uae09\uaca9 \ubcc0\ud654 \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc624\uc77c \ub0c9\uac01\ub9cc \uac00\ub2a5\ud569\ub2c8\ub2e4. \ubb3c\uacfc \uc5fc\uc218\ub294 \uc0ac\uc6a9\uc774 \uae08\uc9c0\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uc794\ub958 \uc751\ub825\uc744 \uc644\ud654\ud558\uae30 \uc704\ud574 \uac00\uacf5\ubb3c\uc774 \uc2e4\uc628\uc73c\ub85c \uc644\uc804\ud788 \uc2dd\uae30 \uc804\uc5d0 \uc5f4\ucc98\ub9ac\ud558\uc2ed\uc2dc\uc624.<\/li>\n\n\n\n<li>\ubcf5\uc7a1\ud55c \ud615\uc0c1\uc758 \uacbd\uc6b0, \ud669\uc0ad \uac00\uacf5 \ud6c4 \ucd5c\uc885 \uacbd\ud654 \uc804\uc5d0 650~675\u00b0C\uc5d0\uc11c \uc751\ub825 \uc644\ud654 \uc5b4\ub2d0\ub9c1\uc744 \uc218\ud589\ud558\uc2ed\uc2dc\uc624.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud45c\uba74 \ud0c8\ud0c4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O2\uac15\uc740 \uac00\uc5f4 \uc911 \ud0c8\ud0c4\uc5d0 \ubbfc\uac10\ud569\ub2c8\ub2e4. \ud45c\uba74\uc5d0\uc11c \ud0c4\uc18c\uac00 \uc190\uc2e4\ub418\uba74 \uc5f0\uc9c8\uce35\uc774 \ud615\uc131\ub418\uc5b4 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc800\ud558\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ubcf4\ud638 \ubd84\uc704\uae30(\ud761\uc5f4 \uac00\uc2a4, \uc5fc\uc695 \ub610\ub294 \uc9c4\uacf5)\uc5d0\uc11c\uc758 \uc5f4\ucc98\ub9ac.<\/li>\n\n\n\n<li>\ucd5c\uc885 \uc5f4\ucc98\ub9ac \uc804\uc5d0 \ud45c\uba74\uc758 \ubaa8\ub4e0 \uc0b0\ud654\ubb3c \uc2a4\ucf00\uc77c\uacfc \uae30\uc874\uc758 \ud0c8\ud0c4\uce35\uc744 \uc81c\uac70\ud558\uc2ed\uc2dc\uc624.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ubc0f \uacbd\ub3c4 \uc81c\uc5b4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uad8c\uc7a5 \uc628\ub3c4 \uc774\uc0c1\uc5d0\uc11c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\ud558\uba74 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ud568\ub7c9\uc774 \uc99d\uac00\ud558\uc5ec \ub2f4\uae08\uc9c8 \ud6c4 \uacbd\ub3c4\uac00 \ubd88\ucda9\ubd84\ud574\uc9c0\uace0 \uce58\uc218 \ubd88\uc548\uc815\uc131\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>760~800\u00b0C \ubc94\uc704 \ub0b4\uc5d0\uc11c \uc720\uc9c0\ud558\uc2ed\uc2dc\uc624. \uc774 \uc628\ub3c4\ub97c \ucd08\uacfc\ud558\uba74 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud558\ub294 \uc8fc\uc694 \uc6d0\uc778\uc774 \ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uc601\ud558 196\u00b0C(\uc601\ud558 321\u00b0F)\uc758 \uadf9\uc800\uc628 \ucc98\ub9ac\ub294 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc758 \uc0c1\ub2f9 \ubd80\ubd84\uc744 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub85c \ubcc0\ud658\uc2dc\ud0b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>175~205\u00b0C(345~400\u00b0F)\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud558\uc5ec 58~62 HRC\uc758 \uc548\uc815\uc801\uc778 \uc791\uc5c5 \uacbd\ub3c4\ub97c \uc5bb\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \uc81c\ud55c \uc0ac\ud56d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O2\uac15\uc740 \ub0b4\uc5f4\uacbd\ub3c4\uac00 \uc5c6\uc2b5\ub2c8\ub2e4. \uc0c1\uc628\uc5d0\uc11c \ub0c9\uac04 \uc2a4\ud0ec\ud551, \uc804\ub2e8 \ubc0f \uc131\ud615\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \ub2e4\uc774\uce90\uc2a4\ud305\uc774\ub098 \uc5f4\uac04 \ub2e8\uc870\uc640 \uac19\uc740 \uace0\uc628 \uac00\uacf5\uc5d0\ub294 \uc0ac\uc6a9\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-faq\" class=\"wp-block-heading\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1765334229948\"><strong class=\"schema-faq-question\">O2 \uacf5\uad6c\uac15\uc744 \uc608\uc5f4\ud560 \ub54c \uc0ac\uc6a9\ud558\ub294 \uc628\ub3c4\ub294 \uba87 \ub3c4\uc785\ub2c8\uae4c?<br\/><\/strong> <p class=\"schema-faq-answer\">O2 \uacf5\uad6c\uac15\uc740 \uc608\uc5f4\ud574\uc57c \ud569\ub2c8\ub2e4. <strong>649-677\u00b0C (1200-1250\u00b0F)<\/strong> \uc7ac\ub8cc\uac00 \uace0\ub974\uac8c \uac00\uc5f4\ub420 \ub54c\uae4c\uc9c0 \uc608\uc5f4\ud569\ub2c8\ub2e4. \uc608\uc5f4\uc740 \uc5f4 \ucda9\uaca9\uc744 \uc904\uc774\uace0 \ubcc0\ud615\uc774\ub098 \uade0\uc5f4\uc758 \uc704\ud5d8\uc744 \ub0ae\ucd94\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765334242713\"><strong class=\"schema-faq-question\">O2 \uacf5\uad6c\uac15\uc758 \uad8c\uc7a5 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<br\/><\/strong> <p class=\"schema-faq-answer\">O2\uac15\uc758 \uc77c\ubc18\uc801\uc778 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654(\uacbd\ud654) \uc628\ub3c4 \ubc94\uc704\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. <strong>760~800\u00b0C (1400~1472\u00b0F)<\/strong>. \uc774 \uc628\ub3c4\uc5d0\uc11c \ubcf5\ud569 \ud569\uae08 \ud0c4\ud654\ubb3c\uc774 \uc6a9\ud574\ub418\uace0 \ubbf8\uc138 \uad6c\uc870\uac00 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub85c \ubcc0\ud658\ub429\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765334243549\"><strong class=\"schema-faq-question\">O2 \uacf5\uad6c\uac15\uc740 \uacbd\ud654 \ud6c4 \uc5b4\ub5bb\uac8c \ub2f4\uae08\uc9c8\ub429\ub2c8\uae4c?<br\/><\/strong> <p class=\"schema-faq-answer\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ucc98\ub9ac \ud6c4, O2 \uacf5\uad6c\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ube60\ub974\uac8c <span style=\"box-sizing: border-box; margin: 0px; padding: 0px;\"><strong>\uae30\ub984\uc5d0 \ub2f4\uae08\uc9c8\ud558\ub2e4<\/strong>\u00a0<\/span>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \ub2e8\ub2e8\ud55c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub85c \ubcc0\ud658\uc2dc\ud0a4\uae30 \uc704\ud574\uc11c\ub294 \uc7ac\ub8cc\ub97c \ub2e4\uc74c \uc628\ub3c4 \uc0ac\uc774\ub85c \ub0c9\uac01\ud574\uc57c \ud569\ub2c8\ub2e4. <strong>66~93\u00b0C (150~200\u00b0F)<\/strong> \ub2f4\uae08\uc9c8 \uacf5\uc815\uc744 \uc9c4\ud589\ud558\uae30 \uc804\uc5d0.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765334244305\"><strong class=\"schema-faq-question\">O2 \uacf5\uad6c\uac15\uc758 \ub2f4\uae08\uc9c8 \ud6c4 \ud15c\ud37c\ub9c1\uc740 \uc5b8\uc81c \uc2dc\uc791\ud574\uc57c \ud569\ub2c8\uae4c?<br><\/strong> <p class=\"schema-faq-answer\">\ub2f4\uae08\uc9c8 \ub2e8\uacc4\uc5d0\uc11c \uc628\ub3c4\uac00 \ub5a8\uc5b4\uc9c0\uba74 \uc989\uc2dc \ud15c\ud37c\ub9c1\uc744 \uc2dc\uc791\ud574\uc57c \ud569\ub2c8\ub2e4. <strong>52~65\u00b0C (125~150\u00b0F)<\/strong>. \uc774\ucc98\ub7fc \uc989\uac01\uc801\uc778 \uc870\uce58\ub294 \uacf5\uad6c \uc218\uba85\uc5d0 \uc545\uc601\ud5a5\uc744 \ubbf8\uce58\uac70\ub098 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc758 \uc548\uc815\ud654\ub97c \ubc29\uc9c0\ud558\ub294 \ub370 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765334289108\"><strong class=\"schema-faq-question\">O2\uac15\uc758 \ud15c\ud37c\ub9c1 \uacfc\uc815\uc5d0\uc11c \ud544\uc694\ud55c \uc720\uc9c0 \uc2dc\uac04\uc740 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<br\/><\/strong> <p class=\"schema-faq-answer\">O2 \uacf5\uad6c\uac15\uc758 \uac01 \ud15c\ud37c\ub9c1 \uc0ac\uc774\ud074\uc5d0\ub294 \ucd5c\uc18c\ud55c \uc77c\uc815 \uc2dc\uac04\uc758 \uc720\uc9c0 \uc2dc\uac04\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. <strong>\uc778\uce58\ub2f9 2\uc2dc\uac04 (\ubc00\ub9ac\ubbf8\ud130\ub2f9 4.7\ubd84)<\/strong> \ub2e8\uba74\uc758. \ud15c\ud37c\ub9c1\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 150\u00b0C~260\u00b0C(300\u00b0F~500\u00b0F) \uc0ac\uc774\uc758 \uc800\uc628\uc5d0\uc11c \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<strong>)<\/strong> \ub192\uc740 \uacbd\ub3c4\ub97c \uc720\uc9c0\ud558\uae30 \uc704\ud574.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765334306984\"><strong class=\"schema-faq-question\">O2 \uacf5\uad6c\uac15\uc740 \uc774\uc911 \ud15c\ud37c\ub9c1\uc774 \ud544\uc694\ud55c\uac00\uc694?<br\/><\/strong> <p class=\"schema-faq-answer\">O2 \uacf5\uad6c\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ud55c \ubc88\uc758 \ud15c\ud37c\ub9c1 \uacf5\uc815\ub9cc\uc73c\ub85c \ucda9\ubd84\ud558\uc9c0\ub9cc, \uacbd\uc6b0\uc5d0 \ub530\ub77c \ub450 \ubc88\uc758 \ud15c\ud37c\ub9c1\uc744 \uc120\ud638\ud558\uae30\ub3c4 \ud569\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \uac01 \ud15c\ud37c\ub9c1 \uacf5\uc815 \uc0ac\uc774\uc5d0 \uc0c1\uc628\uae4c\uc9c0 \uacf5\ub7ad\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <\/div>\n\n\n<ol class=\"wp-block-footnotes\"><li id=\"6666d472-7e42-4e7d-8427-2b3ef148d636\">Nee, JG (\uc218\uc11d \uae30\uc220 \uac80\ud1a0\uc790 \ubc0f \ud3b8\uc9d1\uc7a5). (2010). <em>\uacf5\uad6c \uc124\uacc4\uc758 \uae30\ucd08<\/em> (6\ud310). \uc81c\uc870\uacf5\ud559\ud68c. <a href=\"#6666d472-7e42-4e7d-8427-2b3ef148d636-link\" aria-label=\"1\uac01\uc8fc\ub97c \ucd94\ucc9c\ud574\uc8fc\uc138\uc694\">\u21a9\ufe0e<\/a><\/li><\/ol><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>O2 tool steel is an oil-quenched cold work tool steel with high hardness, high wear resistance, and minimal deformation during heat treatment. Compared with water-quenched steel, O2 steel exhibits better dimensional stability and higher toughness after complete quenching\u00a011. The equivalent grades of O2 tool steel include: Standard Grade EN\/DIN 1.2842 \/ 90MnCrV8 JIS SKS31 GB [&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":"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":"[{\"content\":\"Nee, J. G. (Chief Technical Reviewer &amp; Managing Editor). (2010). <em>Fundamentals of Tool Design<\/em> (6th ed.). Society of Manufacturing Engineers.\",\"id\":\"6666d472-7e42-4e7d-8427-2b3ef148d636\"}]"},"class_list":["post-11734","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.4 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>O2 Tool Steel Heat Treatment Guide - AoboSteel<\/title>\n<meta name=\"description\" content=\"Complete O2 tool steel heat treatment guide: austenitize at 760\u2013800\u00b0C, oil quench, temper to 58\u201362 HRC. 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Preheating helps reduce thermal shock and lowers the risk of deformation or cracking.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#faq-question-1765334242713\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#faq-question-1765334242713\",\"name\":\"What is the recommended austenitizing temperature for O2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The typical austenitizing (hardening) temperature range for O2 steel is <strong>760 to 800\u00b0C (1400 to 1472\u00b0F)<\\\/strong>. At this temperature, complex alloy carbides are dissolved, and the microstructure transforms into austenite.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#faq-question-1765334243549\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#faq-question-1765334243549\",\"name\":\"How is O2 tool steel quenched after hardening?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"After austenitizing, O2 tool steel is typically rapidly <strong>quenched in oil<\\\/strong>\u00a0to transform the austenite into hard martensite. The material should be cooled to a temperature between <strong>66 and 93 \u00b0C (150 and 200 \u00b0F)<\\\/strong> before proceeding to tempering.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#faq-question-1765334244305\",\"position\":4,\"url\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#faq-question-1765334244305\",\"name\":\"When must tempering of O2 tool steel begin after quenching?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Tempering must begin immediately when the temperature from the quenching step has dropped to <strong>52-65\u00b0C (125-150\u00b0F)<\\\/strong>. This immediate timing is critical to prevent adverse effects on tool life and avoid stabilization of retained austenite.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#faq-question-1765334289108\",\"position\":5,\"url\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#faq-question-1765334289108\",\"name\":\"What is the required soak time during tempering for O2 steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Each tempering cycle for O2 tool steel requires a soak time of at least <strong>2 hours per inch (4.7 minutes per millimeter)<\\\/strong> of cross-section. Tempering typically occurs at low temperatures between 150 \u00b0C and 260 \u00b0C (300 \u00b0F to 500 \u00b0F<strong>)<\\\/strong> to maintain high hardness.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#faq-question-1765334306984\",\"position\":6,\"url\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#faq-question-1765334306984\",\"name\":\"Does O2 tool steel require double tempering?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"O2 tool steel commonly requires only a single tempering cycle. However, double tempering is sometimes preferred, requiring air cooling to room temperature between temperings.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"HowTo\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#howto-1\",\"name\":\"O2 Tool Steel Heat Treatment Guide\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#article\"},\"description\":\"Follow these sequential steps for proper heat treatment of O2 tool steel: preheating, hardening (austenitizing), oil quenching, and tempering.<br>\",\"step\":[{\"@type\":\"HowToStep\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#how-to-step-1765333742053\",\"name\":\"Preheating\",\"itemListElement\":[{\"@type\":\"HowToDirection\",\"text\":\"Preheat to 649\u2013677\u00b0C (1200\u20131250\u00b0F) until evenly heated. Reduces thermal shock and the risk of deformation or cracking.\"}]},{\"@type\":\"HowToStep\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#how-to-step-1765333794811\",\"name\":\"Austenitizing (Hardening)\",\"itemListElement\":[{\"@type\":\"HowToDirection\",\"text\":\"Heat to 760\u2013800\u00b0C (1400\u20131472\u00b0F). Alloy carbides dissolve, and the microstructure transforms to austenite.\"}]},{\"@type\":\"HowToStep\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#how-to-step-1765333800667\",\"name\":\"Quenching\",\"itemListElement\":[{\"@type\":\"HowToDirection\",\"text\":\"Quench in oil. Stop when the workpiece reaches 66\u201393\u00b0C (150\u2013200\u00b0F).\"}]},{\"@type\":\"HowToStep\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/o2-tool-steel-heat-treatment\\\/#how-to-step-1765333801451\",\"name\":\"Tempering\",\"itemListElement\":[{\"@type\":\"HowToDirection\",\"text\":\"Begin immediately once the workpiece cools to 52\u201365\u00b0C (125\u2013150\u00b0F). Temper at 150\u2013260\u00b0C (300\u2013500\u00b0F). 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Preheating helps reduce thermal shock and lowers the risk of deformation or cracking.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#faq-question-1765334242713","position":2,"url":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#faq-question-1765334242713","name":"O2 \uacf5\uad6c\uac15\uc758 \uad8c\uc7a5 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The typical austenitizing (hardening) temperature range for O2 steel is <strong>760 to 800\u00b0C (1400 to 1472\u00b0F)<\/strong>. At this temperature, complex alloy carbides are dissolved, and the microstructure transforms into austenite.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#faq-question-1765334243549","position":3,"url":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#faq-question-1765334243549","name":"O2 \uacf5\uad6c\uac15\uc740 \uacbd\ud654 \ud6c4 \uc5b4\ub5bb\uac8c \ub2f4\uae08\uc9c8\ub429\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"After austenitizing, O2 tool steel is typically rapidly <strong>quenched in oil<\/strong>\u00a0to transform the austenite into hard martensite. The material should be cooled to a temperature between <strong>66 and 93 \u00b0C (150 and 200 \u00b0F)<\/strong> before proceeding to tempering.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#faq-question-1765334244305","position":4,"url":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#faq-question-1765334244305","name":"O2 \uacf5\uad6c\uac15\uc758 \ub2f4\uae08\uc9c8 \ud6c4 \ud15c\ud37c\ub9c1\uc740 \uc5b8\uc81c \uc2dc\uc791\ud574\uc57c \ud569\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Tempering must begin immediately when the temperature from the quenching step has dropped to <strong>52-65\u00b0C (125-150\u00b0F)<\/strong>. This immediate timing is critical to prevent adverse effects on tool life and avoid stabilization of retained austenite.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#faq-question-1765334289108","position":5,"url":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#faq-question-1765334289108","name":"O2\uac15\uc758 \ud15c\ud37c\ub9c1 \uacfc\uc815\uc5d0\uc11c \ud544\uc694\ud55c \uc720\uc9c0 \uc2dc\uac04\uc740 \uc5bc\ub9c8\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Each tempering cycle for O2 tool steel requires a soak time of at least <strong>2 hours per inch (4.7 minutes per millimeter)<\/strong> of cross-section. Tempering typically occurs at low temperatures between 150 \u00b0C and 260 \u00b0C (300 \u00b0F to 500 \u00b0F<strong>)<\/strong> to maintain high hardness.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#faq-question-1765334306984","position":6,"url":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#faq-question-1765334306984","name":"O2 \uacf5\uad6c\uac15\uc740 \uc774\uc911 \ud15c\ud37c\ub9c1\uc774 \ud544\uc694\ud55c\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"O2 tool steel commonly requires only a single tempering cycle. However, double tempering is sometimes preferred, requiring air cooling to room temperature between temperings.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"HowTo","@id":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#howto-1","name":"O2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#article"},"description":"O2 \uacf5\uad6c\uac15\uc758 \uc801\uc808\ud55c \uc5f4\ucc98\ub9ac\ub97c \uc704\ud574\uc11c\ub294 \uc608\uc5f4, \uacbd\ud654(\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654), \uc624\uc77c \ub2f4\uae08\uc9c8, \ud15c\ud37c\ub9c1\uc758 \uc21c\ucc28\uc801\uc778 \ub2e8\uacc4\ub97c \ub530\ub974\uc2ed\uc2dc\uc624.<br>","step":[{"@type":"HowToStep","url":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#how-to-step-1765333742053","name":"Preheating","itemListElement":[{"@type":"HowToDirection","text":"Preheat to 649\u2013677\u00b0C (1200\u20131250\u00b0F) until evenly heated. Reduces thermal shock and the risk of deformation or cracking."}]},{"@type":"HowToStep","url":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#how-to-step-1765333794811","name":"Austenitizing (Hardening)","itemListElement":[{"@type":"HowToDirection","text":"Heat to 760\u2013800\u00b0C (1400\u20131472\u00b0F). Alloy carbides dissolve, and the microstructure transforms to austenite."}]},{"@type":"HowToStep","url":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#how-to-step-1765333800667","name":"Quenching","itemListElement":[{"@type":"HowToDirection","text":"Quench in oil. Stop when the workpiece reaches 66\u201393\u00b0C (150\u2013200\u00b0F)."}]},{"@type":"HowToStep","url":"https:\/\/aobosteel.com\/o2-tool-steel-heat-treatment\/#how-to-step-1765333801451","name":"Tempering","itemListElement":[{"@type":"HowToDirection","text":"Begin immediately once the workpiece cools to 52\u201365\u00b0C (125\u2013150\u00b0F). Temper at 150\u2013260\u00b0C (300\u2013500\u00b0F). Minimum soak: 2 hours per inch (4.7 min\/mm) of cross-section."}]}],"inLanguage":"ko-KR"}]}},"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":"O2 tool steel is an oil-quenched cold work tool steel with high hardness, high wear resistance, and minimal deformation during heat treatment. Compared with water-quenched steel, O2 steel exhibits better dimensional stability and higher toughness after complete quenching\u00a011. The equivalent grades of O2 tool steel include: Standard Grade EN\/DIN 1.2842 \/ 90MnCrV8 JIS SKS31 GB&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":"O2 tool steel is an oil-quenched cold work tool steel with high hardness, high wear resistance, and minimal deformation during heat treatment. Compared with water-quenched steel, O2 steel exhibits better dimensional stability and higher toughness after complete quenching\u00a011. The equivalent grades of O2 tool steel include: Standard Grade EN\/DIN 1.2842 \/ 90MnCrV8 JIS SKS31 GB&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11734","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=11734"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11734\/revisions"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=11734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}