{"id":11776,"date":"2025-12-29T19:03:08","date_gmt":"2025-12-29T11:03:08","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11776"},"modified":"2026-10-22T12:32:21","modified_gmt":"2026-10-22T04:32:21","slug":"d2-tool-steel-heat-treatment-guide","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/d2-tool-steel-heat-treatment-guide\/","title":{"rendered":"D2 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc: \ud15c\ud37c\ub9c1 \ucc28\ud2b8, \uacbd\ub3c4 \ubc0f \uacf5\uc815"},"content":{"rendered":"

D2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/h1>\n\n\n\n

D2 \uacf5\uad6c\uac15<\/a> \uc740 \uc77c\ubc18\uc801\uc73c\ub85c 1200\u20131250\u00b0F \/ 649\u2013677\u00b0C\ub85c \uc608\uc5f4\ud558\uace0, 1795\u20131875\u00b0F \/ 980\u20131025\u00b0C\uc5d0\uc11c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\ud558\uace0, \ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub77c \uacf5\uae30, \uac00\uc2a4, \uc624\uc77c \ub610\ub294 \uc5fc\uc695\uc5d0\uc11c \ub2f4\uae08\uc9c8\ud558\uace0, 900\u2013960\u00b0F \/ 480\u2013515\u00b0C\uc5d0\uc11c 2\ud68c \ud15c\ud37c\ub9c1\ud558\uc5ec \uc5f4\ucc98\ub9ac\ud569\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c<\/a> applications, this process produces about 58\u201360 HRC while improving dimensional stability and reducing the risk of retained austenite, cracking, and distortion.<\/p>\n\n\n\n

D2\ub294 \uace0\ud0c4\uc18c, \uace0\ud06c\ub86c \uacf5\uae30\uacbd\ud654 \uacf5\uad6c\uac15\uc774\uae30 \ub54c\ubb38\uc5d0, \uc5f4\ucc98\ub9ac<\/a> \ub294 \uc628\ub3c4, \uc720\uc9c0 \uc2dc\uac04, \ub2e8\uba74 \ud06c\uae30, \ub2f4\uae08\uc9c8 \ubc29\ubc95 \ubc0f \ud15c\ud37c\ub9c1 \uc804\ub7b5\uc744 \uc81c\uc5b4\ud574\uc57c \ud569\ub2c8\ub2e4. \uc18c\ud615 \ud380\uce58, \ub300\ud615 \ub2e4\uc774 \ube14\ub85d \ubc0f \uc815\ubc00 \uac8c\uc774\uc9c0\uac00 \ubaa8\ub450 \ub3d9\uc77c\ud55c \uacf5\uc815\uc73c\ub85c \ucc98\ub9ac\ub418\uc9c0 \uc54a\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf8 \uac00\uc774\ub4dc\ub294 \uc608\uc5f4, \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654, \ub2f4\uae08\uc9c8, \uc120\ud0dd\uc801 \uc2ec\ub0c9 \ucc98\ub9ac, \ud15c\ud37c\ub9c1, \uacbd\ub3c4 \uc120\ud0dd, \ub2e8\uba74 \ud06c\uae30 \uc704\ud5d8 \ubc0f \uc77c\ubc18\uc801\uc778 \uc5f4\ucc98\ub9ac \uc2e4\ud328\ub97c \ud3ec\ud568\ud55c \uc2e4\uc6a9\uc801\uc778 D2 \uc5f4\ucc98\ub9ac \uc21c\uc11c\ub97c \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

D2 \uc5f4\ucc98\ub9ac \uac04\ud3b8 \ub9e4\uac1c\ubcc0\uc218\ud45c<\/h2>\n\n\n\n
\ub2e8\uacc4<\/th>\uad8c\uc7a5 \ubc94\uc704<\/th>\ubaa9\uc801<\/th><\/tr><\/thead>
\uc608\uc5f4<\/td>1200\u20131250\u00b0F \/ 649\u2013677\u00b0C<\/td>\uc5f4\ucda9\uaca9 \ubc0f \uade0\uc5f4 \uc704\ud5d8 \uac10\uc18c<\/td><\/tr>
\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654<\/td>1795\u20131875\u00b0F \/ 980\u20131025\u00b0C<\/td>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \ud615\uc131\ud558\uace0 \ud569\uae08 \ud0c4\ud654\ubb3c\uc744 \uc6a9\ud574\uc2dc\ud0b5\ub2c8\ub2e4.<\/td><\/tr>
\ub2f4\uae08\uc9c8<\/td>\ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub77c \uacf5\uae30, \uac00\uc2a4, \uc624\uc77c \ub610\ub294 \uc5fc\uc695\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/td>\uc81c\uc5b4\ub41c \ubcc0\ud615\uc744 \ud1b5\ud574 \uac15\ucca0\uc744 \uacbd\ud654\uc2dc\ud0a4\uc2ed\uc2dc\uc624.<\/td><\/tr>
\uc120\ud0dd \uc0ac\ud56d: \uadf9\uc800\uc628 \ucc98\ub9ac<\/td>\ucd5c\uc800 -196\u00b0C\uae4c\uc9c0<\/td>\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \uac10\uc18c\uc2dc\ud0a4\uace0 \uce58\uc218 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/td><\/tr>
\ub728\uc784<\/td>900\u2013960\u00b0F \/ 480\u2013515\u00b0C, \uc774\uc911 \ud15c\ud37c\ub9c1<\/td>\uc548\uc815\uc131\uc744 \uac1c\uc120\ud558\uc5ec \uc57d 58~60 HRC\uc5d0 \ub3c4\ub2ec\ud569\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n

D2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \ucc38\uace0 \uc790\ub8cc, \uc778\uc1c4\uc6a9 PDF<\/strong><\/p>\n\n\n\n

\uacf5\uc815 \ud30c\ub77c\ubbf8\ud130, \ud15c\ud37c\ub9c1 \uacbd\ub3c4 \ucc28\ud2b8, \uc6a9\ub3c4\ubcc4 \uc791\uc5c5 \uacbd\ub3c4, \uc5f0\ub77d\ucc98\ub97c \ub2f4\uc740 A4 2\ud398\uc774\uc9c0\uc785\ub2c8\ub2e4. PDF\ub294 \uc601\uc5b4\ub85c \uc81c\uacf5\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\n
PDF \ub2e4\uc6b4\ub85c\ub4dc, 413 KB<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n

D2 \uc18c\uc7ac\uc758 \uc5f4\ucc98\ub9ac \ubc29\ubc95 - \ub2e8\uacc4\ubcc4 \uc548\ub0b4<\/h2>\n\n\n\n

D2 heat treatment includes five main stages: preheating, austenitizing, quenching, optional cryogenic treatment, and tempering. Each stage affects final hardness, dimensional change, retained austenite, and the risk of cracking.<\/p>\n\n\n\n

\uc544\ub798 \ud30c\ub77c\ubbf8\ud130\ub294 \uc2e4\uc6a9\uc801\uc778 \ucc38\uace0 \ubc94\uc704\uc785\ub2c8\ub2e4. \uc6a9\uad11\ub85c \uc6a9\ub7c9, \ub2e8\uba74 \ub450\uaed8, \ubd80\ud488 \ud615\uc0c1 \ubc0f \uc694\uad6c\ub418\ub294 \uc791\uc5c5 \uacbd\ub3c4\uc5d0 \ub530\ub77c \ucd5c\uc885 \uc5f4\ucc98\ub9ac \uc124\uc815\uc744 \uc870\uc815\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

\"D2
D2 \uc5f4\ucc98\ub9ac \ub808\uc2dc\ud53c: \uc608\uc5f4\uc5d0\uc11c 2\ucc28 \ud15c\ud37c\ub9c1\uae4c\uc9c0<\/strong>. \uc57d 650 \u00b0C\uc5d0\uc11c 10~15\ubd84\uac04 \uc608\uc5f4\ud558\uace0, \uc57d 1010 \u00b0C\uc5d0\uc11c 25 mm\ub2f9 1\uc2dc\uac04 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\ud55c \ub4a4 \uc57d 65 \u00b0C\uae4c\uc9c0 \ub2f4\uae08\uc9c8\ud558\uace0, 515 \u00b0C\uc640 482 \u00b0C\uc5d0\uc11c 25 mm\ub2f9 2\uc2dc\uac04\uc529 2\ud68c \ud15c\ud37c\ub9c1\ud569\ub2c8\ub2e4. \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc640 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ud615\uc131 \uad6c\uac04\uc774 \uac19\uc740 \ucd95\uc5d0 \ud45c\uc2dc\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.
\ucd9c\ucc98: William E. Bryson, Heat Treatment, Selection, and Application of Tool Steels, 2nd ed., Hanser, 2009, p. 44, Fig. 5.8.<\/figcaption><\/figure>\n\n\n\n

1\ub2e8\uacc4: D2 \uacf5\uad6c\uac15 \uc608\uc5f4<\/h3>\n\n\n\n

\uc608\uc5f4\uc740 D2\ub97c \uacbd\ud654 \uc628\ub3c4\ub85c \uac00\uc5f4\ud560 \ub54c \uc5f4\ucda9\uaca9\uc744 \uc904\uc785\ub2c8\ub2e4. D2\ub294 \uc5f4\uc804\ub3c4\uc728\uc774 \uc0c1\ub300\uc801\uc73c\ub85c \ub0ae\uae30 \ub54c\ubb38\uc5d0 \uc774\ub294 \uc911\uc694\ud569\ub2c8\ub2e4. \ud45c\uba74\uc774 \uc2ec\ubd80\ubcf4\ub2e4 \ud6e8\uc52c \ube60\ub974\uac8c \uac00\uc5f4\ub418\uba74 \ub0b4\ubd80 \uc751\ub825\uc73c\ub85c \uc778\ud574 \ubcc0\ud615\uc774\ub098 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\"Chart
\uac00\uc5f4 \uc911 3\uc778\uce58 \uac15\uc7ac \ud050\ube0c\uc758 \ud45c\uba74 \ubc0f \uc911\uc2ec \uc628\ub3c4<\/strong>. \ud45c\uba74\uc774 1000 \u00b0F\uc5d0 \ub3c4\ub2ec\ud560 \ub54c \uc911\uc2ec\ubd80\ub294 \uc544\uc9c1 \uc57d 240 \u00b0F\uc785\ub2c8\ub2e4. \ud45c\uba74\uc774 1400 \u00b0F\ub97c \ub118\uc740 \ub4a4\uc5d0\uc57c \uc911\uc2ec\ubd80\uac00 \ub530\ub77c\uc624\ubbc0\ub85c, D2\ub294 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\ub85c \ubc14\ub85c \uc62c\ub9ac\uc9c0 \uc54a\uace0 \uc608\uc5f4 \uc720\uc9c0 \ub2e8\uacc4\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.
\ucd9c\ucc98: William E. Bryson, Heat Treatment, Selection, and Application of Tool Steels, 2nd ed., Hanser, 2009, p. 33, Fig. 5.2.<\/figcaption><\/figure>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uc608\uc5f4 \uc628\ub3c4\ub294 1200\u20131250\u00b0F (649\u2013677 \u00b0C)\uc785\ub2c8\ub2e4. \ub2e8\uba74\uc774 \uade0\uc77c\ud558\uac8c \uac00\uc5f4\ub420 \ub54c\uae4c\uc9c0 \ubd80\ud488\uc744 \uc720\uc9c0\ud558\uc2ed\uc2dc\uc624. \ub450\uaebc\uc6b4 \ub2e8\uba74\uc740 \uc587\uc740 \ubd80\ud488\ubcf4\ub2e4 \uade0\uc77c\ud654\uc5d0 \ub354 \ub9ce\uc740 \uc2dc\uac04\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

D2\ub294 \uc9c4\uacf5\ub85c, \ubd84\uc704\uae30 \uc81c\uc5b4\ub85c, \uc911\uc131 \uc5fc\uc695 \ub610\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ud3ec\uc77c \uc544\ub798\uc5d0\uc11c \uac00\uc5f4\ud558\uc2ed\uc2dc\uc624. \ud45c\uba74 \ubcf4\ud638 \uc5c6\uc774 \uc0b0\ud654 \ubc0f \ud0c8\ud0c4\uc774 \ubc1c\uc0dd\ud558\uba74 \uacbd\ud654 \ud6c4 \ud45c\uba74 \uacbd\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

2\ub2e8\uacc4: D2\uac15\uc758 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ubc0f \uacbd\ud654<\/h3>\n\n\n\n

\uc608\uc5f4 \ud6c4 D2\ub97c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\ub85c \uc2b9\uc628\ud558\uc2ed\uc2dc\uc624. \uc77c\ubc18\uc801\uc778 \ubc94\uc704\ub294 1795\u20131875\u00b0F \/ 980\u20131025\u00b0C\uc774\uba70, 1850\u00b0F \/ 1010\u00b0C\uac00 \uc2e4\uc6a9\uc801\uc778 \uae30\uc900\uc73c\ub85c \uc790\uc8fc \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc804\uccb4 \ub2e8\uba74\uc774 \ubaa9\ud45c \uc628\ub3c4\uc5d0 \ub3c4\ub2ec\ud55c \ud6c4\uc5d0\ub9cc \uc720\uc9c0 \uc2dc\uac04\uc744 \uc2dc\uc791\ud558\uc2ed\uc2dc\uc624. \uc77c\ubc18\uc801\uc778 \uae30\uc900\uc740 \ub450\uaed8 1\uc778\uce58\ub2f9 45\u201360\ubd84\uc774\uba70, \ub85c \uc7a5\uc785\ub7c9, \ub2e8\uba74 \ubc0f \uacf5\uad6c \ud615\uc0c1\uc5d0 \ub530\ub77c \uc870\uc815\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc628\ub3c4\uac00 \ub108\ubb34 \ub0ae\uac70\ub098 \uc720\uc9c0 \uc2dc\uac04\uc774 \ub108\ubb34 \uc9e7\uc73c\uba74 \ud0c4\ud654\ubb3c\uc774 \ucda9\ubd84\ud788 \uc6a9\ud574\ub418\uc9c0 \uc54a\uc544 \uacbd\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc628\ub3c4\uac00 \ub108\ubb34 \ub192\uac70\ub098 \uc720\uc9c0 \uc2dc\uac04\uc774 \ub108\ubb34 \uae38\uba74 \ub2e4\uc74c \ud56d\ubaa9\uc774 \uc99d\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4: \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8<\/a>, \uacb0\uc815\ub9bd \uc870\ub300\ud654, \ucde8\uc131 \ubc0f \uade0\uc5f4 \uc704\ud5d8.<\/p>\n\n\n\n

980\u00b0C, 1010\u00b0C \ubc0f 1025\u00b0C\uac00 \ud0c4\ud654\ubb3c \uc6a9\ud574, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ubc0f \uacbd\ub3c4\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5\uc744 \ud3ec\ud568\ud55c \uc0c1\uc138\ud55c \uc628\ub3c4 \uc120\ud0dd\uc740 \ub2e4\uc74c\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. D2 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4<\/a> \uac00\uc774\ub4dc.<\/p>\n\n\n\n

\"D2
\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uc5d0 \ub530\ub978 D2\uc758 \ub2f4\uae08\uc9c8 \uc9c1\ud6c4 \uacbd\ub3c4<\/strong>. \uc720\ub0c9\uc740 1830~1850 \u00b0F(1000~1010 \u00b0C) \ubd80\uadfc\uc5d0\uc11c \uc57d 64 HRC\ub85c \ucd5c\uace0\uce58\ub97c \ubcf4\uc774\uace0, \uacf5\ub7ad\uc740 \uc57d 63 HRC\uc774\uba70, \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uac00 1900 \u00b0F(1040 \u00b0C) \ucabd\uc73c\ub85c \ub192\uc544\uc9c0\uace0 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uac00 \uc99d\uac00\ud558\uba74 \uacbd\ub3c4\uac00 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4. \uc774\ub294 \ud15c\ud37c\ub9c1 \uc190\uc2e4\uc774 \ubc1c\uc0dd\ud558\uae30 \uc804, \ubd80\ud488\uc774 \ud15c\ud37c\ub9c1\uc73c\ub85c \ub118\uc5b4\uac08 \ub54c\uc758 \uacbd\ub3c4\uc785\ub2c8\ub2e4.
\ucd9c\ucc98: Heat Treater’s Guide: Practices and Procedures for Irons and Steels, ASM International, 1995, p. 562.<\/figcaption><\/figure>\n\n\n\n

3\ub2e8\uacc4: D2 \uacf5\uad6c\uac15 \ub2f4\uae08\uc9c8<\/h3>\n\n\n\n

D2\ub294 \uacf5\uae30 \uacbd\ud654 \uacf5\uad6c\uac15<\/a>. \uc81c\uc5b4\ub41c \uacf5\ub7ad \ub610\ub294 \uac00\uc2a4 \ub2f4\uae08\uc9c8\uc740 \uae09\uaca9\ud55c \uc561\uccb4 \ub2f4\uae08\uc9c8\uc5d0 \ube44\ud574 \ubcc0\ud615\uc744 \uc904\uc5ec\uc8fc\uae30 \ub54c\ubb38\uc5d0 \uc885\uc885 \uc120\ud638\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub300\ud615 \ub2e8\uba74\uc774\ub098 \ud2b9\uc218 \ud615\uc0c1\uc758 \uacbd\uc6b0 \uc5fc\uc695 \ub610\ub294 \uc624\uc77c \ub2f4\uae08\uc9c8\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubc29\ubc95\uc740 \ub0c9\uac01 \uc18d\ub3c4\ub97c \ub192\uc77c \uc218 \uc788\uc9c0\ub9cc \uc5f4\uc751\ub825\uacfc \uade0\uc5f4 \uc704\ud5d8\ub3c4 \uc99d\uac00\ud569\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \ubc29\ubc95\uc740 \uad00\ud589\uc774 \uc544\ub2c8\ub77c \ub2e8\uba74 \ud06c\uae30\uc640 \uc694\uad6c \uacbd\ub3c4\uc5d0 \ub530\ub77c \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

\ub2f4\uae08\uc9c8 \ud6c4, \uacf5\uad6c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud15c\ud37c\ub9c1 \uc804\uc5d0 \uc57d 50~66\u00b0C(120~150\u00b0F)\uae4c\uc9c0 \ub0c9\uac01\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc774 \ub2e8\uacc4\uc5d0\uc11c \uac15\ucca0\uc740 \ub2e8\ub2e8\ud558\uc9c0\ub9cc \ub192\uc740 \uc751\ub825 \uc0c1\ud0dc\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ud15c\ud37c\ub9c1\uc740 \uc989\uc2dc \uc2dc\uc791\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"D2
D2 \uacf5\uad6c\uac15 TTT \ub3c4\uba74<\/strong>. \uc774 \ub2e4\uc774\uc5b4\uadf8\ub7a8\uc740 980\u00b0C (1800\u00b0F)\uc5d0\uc11c 1\uc2dc\uac04 \ub3d9\uc548 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\ud55c \ud6c4 D2 \uacf5\uad6c\uac15\uc758 \ub4f1\uc628 \ubcc0\ud0dc \uac70\ub3d9\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc774\ub294 D2\uac00 \uc81c\uc5b4\ub41c \uacf5\uae30 \ub610\ub294 \uac00\uc2a4 \ub0c9\uac01\uc5d0\uc11c \uacbd\ud654\ub420 \uc218 \uc788\ub294 \uc774\uc720\ub97c \ubcf4\uc5ec\uc8fc\ub294 \ub3d9\uc2dc\uc5d0 \ub2e8\uba74 \ud06c\uae30\uc640 \ub0c9\uac01 \uc18d\ub3c4\uac00 \ucd5c\uc885 \uacbd\ub3c4\uc640 \uce58\uc218 \uc548\uc815\uc131\uc5d0 \uc5ec\uc804\ud788 \uc601\ud5a5\uc744 \ubbf8\uce5c\ub2e4\ub294 \uc810\uc744 \ub2f4\uae08\uc9c8 \ub17c\uc758\uc5d0 \uc81c\uacf5\ud569\ub2c8\ub2e4.
\ucd9c\ucc98: Tool Steels, George Adam Roberts, George Krauss, Richard Kennedy, 206\ucabd, \uadf8\ub9bc 12-3.<\/figcaption><\/figure>\n\n\n\n

4\ub2e8\uacc4: D2 \uacf5\uad6c\uac15\uc5d0 \ub300\ud55c \uc120\ud0dd\uc801 \uadf9\uc800\uc628 \ucc98\ub9ac<\/h3>\n\n\n\n

\uc2ec\ub0c9 \ucc98\ub9ac\ub294 \uc120\ud0dd \uc0ac\ud56d\uc785\ub2c8\ub2e4. \uce58\uc218 \uc548\uc815\uc131, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4 \ubc0f \ub9c8\ubaa8 \uc77c\uad00\uc131\uc774 \uc911\uc694\ud55c \uacbd\uc6b0 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624. \uc774\ub294 \ubc94\uc6a9 \ubd80\ud488\ubcf4\ub2e4 \uc815\ubc00 \ub2e4\uc774, \ud380\uce58, \uac8c\uc774\uc9c0, \uc2ac\ub9ac\ud305 \uacf5\uad6c \ubc0f \uace0\ub9c8\ubaa8 \uacf5\uad6c\uc5d0 \ub354 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc2ec\uce35 \uc2ec\ub0c9 \ucc98\ub9ac\ub294 D2\ub97c \uc57d -196\u00b0C\uae4c\uc9c0 \ub0c9\uac01\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uae09\uaca9\ud558\uace0 \uc81c\uc5b4\ub418\uc9c0 \uc54a\uc740 \ub0c9\uac01\uc73c\ub85c D2\ub97c \ucda9\uaca9 \uacbd\ud654\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \uae09\uaca9\ud55c \uc628\ub3c4 \ubcc0\ud654\ub294 \uade0\uc5f4 \uc704\ud5d8\uc744 \uc99d\uac00\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc2ec\ub0c9 \ucc98\ub9ac\ub294 \uc5f4\ucc98\ub9ac \ubc29\uc2dd\uc5d0 \ub530\ub77c \ub2f4\uae08\uc9c8 \ud6c4 \ud15c\ud37c\ub9c1 \uc804\uc5d0 \ub610\ub294 \ud15c\ud37c\ub9c1 \uc0ac\uc774\ud074 \uc0ac\uc774\uc5d0 \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \ud6c4 \uc218\ud589\ud558\ub294 \uacbd\uc6b0 \ubd80\ud488\uc774 \uc2e4\uc628\uc73c\ub85c \ub3cc\uc544\uc628 \ud6c4 \ud15c\ud37c\ub9c1\uc744 \ud574\uc57c \ud569\ub2c8\ub2e4. \uc0c8\ub85c \ubcc0\ud0dc\ub41c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub294 \uc751\ub825\uc774 \ub192\uc73c\ubbc0\ub85c \ud15c\ud37c\ub9c1\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"D2
\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uc5d0 \ub530\ub978 D2\uc758 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8<\/strong>. 1.60C-11.95Cr D2 \ud788\ud2b8\uc758 \uacbd\uc6b0, \ub2f4\uae08\uc9c8 \ud6c4 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub294 900 \u00b0C\uc5d0\uc11c \uc57d 10~22%\uc5d0\uc11c 1100 \u00b0C\uc5d0\uc11c 63~72%\ub85c \uc99d\uac00\ud569\ub2c8\ub2e4. \ubc94\uc704 \uc0c1\ud55c\uc5d0\uc11c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\ud558\uba74 \ub098\uc911\uc5d0 \ubcc0\ud0dc\ud560 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uac00 \ub354 \ub9ce\uc774 \ub0a8\uc73c\uba70, \uc774\ub294 \ub0c9\uac01 \ucc98\ub9ac\uc640 2\ucc28 \ud15c\ud37c\ub9c1\uc774 \ud544\uc694\ud55c \uc774\uc720\uc785\ub2c8\ub2e4.
\ucd9c\ucc98: Heat Treater’s Guide: Practices and Procedures for Irons and Steels, ASM International, 1995, p. 561.<\/figcaption><\/figure>\n\n\n\n

5\ub2e8\uacc4: D2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac<\/h3>\n\n\n\n

D2 \uacbd\ud654 \ud6c4\uc5d0\ub294 \ud15c\ud37c\ub9c1\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \ub2f4\uae08\uc9c8\ub41c D2\ub294 \ub2e8\ub2e8\ud558\uc9c0\ub9cc \ucde8\uc131\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ud15c\ud37c\ub9c1\uc740 \ub0b4\ubd80 \uc751\ub825\uc744 \uac10\uc18c\uc2dc\ud0a4\uace0, \uc778\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uba70, \ubbf8\uc138 \uad6c\uc870\ub97c \uc548\uc815\ud654\ud558\uace0, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \uc81c\uc5b4\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

D2\uac15\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc774\uc911 \ud15c\ud37c\ub9c1\uc774 \uad8c\uc7a5\ub429\ub2c8\ub2e4. \uc0bc\uc911 \ud15c\ud37c\ub9c1\uc740 \uc911\uc694 \uacf5\uad6c \ub610\ub294 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4\uac00 \ud2b9\ud788 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud15c\ud37c\ub9c1 \uc8fc\uae30 \uc0ac\uc774\uc5d0\ub294 \ubd80\ud488\uc744 \uc2e4\uc628\uc73c\ub85c \ub0c9\uac01\uc2dc\ucf1c\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud15c\ud37c\ub9c1 \uc804\ub7b5<\/th>\uc77c\ubc18\uc801\uc778 \uc628\ub3c4<\/th>\uc608\uc0c1 \uacb0\uacfc<\/th>\ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\uc6b0\uc5d0 \uac00\uc7a5 \uc801\ud569\ud569\ub2c8\ub2e4:<\/th><\/tr><\/thead>
\uc800\uc628 \ud15c\ud37c\ub9c1<\/td>\uc57d 400\u00b0F \/ 205\u00b0C<\/td>\uc57d 60~62 HRC<\/td>\ucd5c\ub300 \uacbd\ub3c4\uac00 \uce58\uc218 \uc548\uc815\uc131\ubcf4\ub2e4 \ub354 \uc911\uc694\ud569\ub2c8\ub2e4.<\/td><\/tr>
\uace0\uc628 \uc774\uc911 \ud15c\ud37c\ub9c1<\/td>900\u2013960\u00b0F \/ 480\u2013515\u00b0C<\/td>\uc57d 58~60 HRC<\/td>\uce58\uc218 \uc548\uc815\uc131, \uc751\ub825 \uc644\ud654 \ubc0f \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4\ub294 \uc911\uc694\ud569\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ub300\ubd80\ubd84\uc758 \uc0b0\uc5c5\uc6a9 D2 \uacf5\uad6c\uc758 \uacbd\uc6b0 900~960\u00b0F \/ 480~515\u00b0C\uc758 \uace0\uc628 \uc774\uc911 \ud15c\ud37c\ub9c1\uc744 \ud1b5\ud574 \uacbd\ub3c4, \ub0b4\ub9c8\ubaa8\uc131, \uc548\uc815\uc131 \ubc0f \uade0\uc5f4 \uc800\ud56d\uc131 \uac04\uc758 \ub354 \uc548\uc804\ud55c \uade0\ud615\uc744 \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

D2 \ud15c\ud37c\ub9c1 \uc628\ub3c4 \ubc0f \uacbd\ub3c4\ud45c<\/h2>\n\n\n\n

\ucd5c\uc885 \uacbd\ub3c4\ub294 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uc640 \ub2f4\uae08\uc9c8 \ubc29\ubc95\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4., \ud15c\ud37c\ub9c1 \uc628\ub3c4<\/a>, \ud15c\ud37c\ub9c1 \uc0ac\uc774\ud074 \ud69f\uc218, \ub2e8\uba74 \ud06c\uae30, \uadf8\ub9ac\uace0 \uadf9\uc800\uc628 \ucc98\ub9ac \uc0ac\uc6a9 \uc5ec\ubd80 \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud15c\ud37c\ub9c1 \uc628\ub3c4<\/th>\uc77c\ubc18\uc801\uc778 \uc870\uac74<\/th>\uc608\uc0c1 \uacbd\ub3c4<\/th><\/tr><\/thead>
\ub2f4\uae08\uc9c8 \uc9c1\ud6c4<\/td>\ud45c\uc900 \uacbd\ud654<\/td>\uc57d 64 HRC<\/td><\/tr>
300\u00b0F \/ 150\u00b0C<\/td>\uc800\uc628 \ud15c\ud37c\ub9c1<\/td>\uc57d 62 HRC<\/td><\/tr>
400\u00b0F \/ 205\u00b0C<\/td>\uc800\uc628 \ud15c\ud37c\ub9c1<\/td>\uc57d 61\uba85\uc758 HRC<\/td><\/tr>
500\u00b0F \/ 260\u00b0C<\/td>\ud15c\ud37c\ub4dc<\/td>\uc57d 60 HRC<\/td><\/tr>
600\u00b0F \/ 315\u00b0C<\/td>\ud15c\ud37c\ub4dc<\/td>\uc57d 59 HRC<\/td><\/tr>
700\u00b0F \/ 370\u00b0C<\/td>\ud15c\ud37c\ub4dc<\/td>\uc57d 58 HRC<\/td><\/tr>
800\u00b0F \/ 425\u00b0C<\/td>\ud15c\ud37c\ub4dc<\/td>\uc57d 58 HRC<\/td><\/tr>
900\u00b0F \/ 480\u00b0C<\/td>\uace0\uc628 \ud15c\ud37c\ub9c1<\/td>\uc57d 58 HRC<\/td><\/tr>
\ud654\uc528 960\ub3c4 \/ \uc12d\uc528 515\ub3c4<\/td>\uace0\uc628 \ud15c\ud37c\ub9c1<\/td>\uc9c4\ub8cc \ubc29\uc2dd\uc5d0 \ub530\ub77c \uc57d 58~60 HRC \uc815\ub3c4\uc785\ub2c8\ub2e4.<\/td><\/tr>
1000\u00b0F \/ 540\u00b0C<\/td>\uace0\uc628 \ud15c\ud37c\ub9c1<\/td>\uc57d 55 HRC<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\"D2
\ud15c\ud37c\ub9c1 \uc628\ub3c4\uc5d0 \ub530\ub978 D2 \uacbd\ub3c4<\/strong>. 970 \u00b0C\uc640 995 \u00b0C\uc5d0\uc11c \uacf5\ub7ad\ud55c D2\ub294 62.5~63.5 HRC\uc5d0\uc11c \uc2dc\uc791\ud574 480~515 \u00b0C\uc758 2\ud68c \ud15c\ud37c\ub9c1 \uad6c\uac04\uc5d0\uc11c \uc57d 58 HRC\ub97c \uc720\uc9c0\ud558\uba70, 540 \u00b0C\ub97c \ub118\uc73c\uba74 \uae09\uaca9\ud788 \uc5f0\ud654\ub429\ub2c8\ub2e4. \uc774 \ud3c9\ud0c4\ud55c \uad6c\uac04\uc774 \uace0\uc628 2\ud68c \ud15c\ud37c\ub9c1\uc758 \uc2e4\uc6a9\uc801\uc778 \uc708\ub3c4\uc6b0\uc785\ub2c8\ub2e4.
\ucd9c\ucc98: Heat Treater’s Guide: Practices and Procedures for Irons and Steels, ASM International, 1995, p. 561.<\/figcaption><\/figure>\n\n\n\n

\uc774 \ucc28\ud2b8\ub294 \ucc38\uace0\uc6a9\uc774\uba70 \ubcf4\uc7a5\ub41c \uacb0\uacfc\uac00 \uc544\ub2d9\ub2c8\ub2e4. \uc2e4\uc81c \uacbd\ub3c4\ub294 \uc6a9\uad11\ub85c \uc81c\uc5b4, \ub0c9\uac01 \uc18d\ub3c4, \ub2e8\uba74 \ub450\uaed8 \ubc0f \uc7ac\ub8cc\uc758 \uc6d0\ub798 \uc0c1\ud0dc\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n

D2 \uacf5\uad6c\uac15\uc758 \uc8fc\uc694 \ud15c\ud37c\ub9c1 \uc804\ub7b5<\/h2>\n\n\n\n

Select the tempering temperature based on the tool\u2019s failure risk. If the main risk is abrasive wear and the tool has limited impact loading, you can use low-temperature tempering to maintain higher hardness. If the main risks are cracking, \ud06c\uae30 \ubcc0\ud654<\/a>, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ub610\ub294 \uc77c\uad00\uc131 \uc5c6\ub294 \uc0dd\uc0b0 \uc131\ub2a5\uacfc \uac19\uc740 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uacbd\uc6b0 \uace0\uc628 \uc774\uc911 \ud15c\ud37c\ub9c1\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \ub354 \uc548\uc804\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc57d 400\u00b0F (205\u00b0C)\uc5d0\uc11c\uc758 \uc800\uc628 \ud15c\ud37c\ub9c1\uc740 \uc57d 60\u201362 HRC\ub97c \uc0dd\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \ucd5c\ub300 \uacbd\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ud544\uc694\ud560 \ub54c \uc720\uc6a9\ud569\ub2c8\ub2e4. \ud55c\uacc4\ub294 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4\uc640 \uce58\uc218 \uc548\uc815\uc131\uc774 \uace0\uc628 2\ud68c \ud15c\ud37c\ub9c1\ubcf4\ub2e4 \uc57d\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

900\u2013960\u00b0F (480\u2013515\u00b0C)\uc5d0\uc11c\uc758 \uace0\uc628 2\ud68c \ud15c\ud37c\ub9c1\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 58\u201360 HRC\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \uacbd\ub3c4\ub294 \ub0ae\uc744 \uc218 \uc788\uc9c0\ub9cc \uacf5\uad6c\ub294 \uc885\uc885 \ub354 \ub098\uc740 \uc751\ub825 \uc644\ud654, \uc548\uc815\uc131 \ubc0f \uc0ac\uc6a9 \uc2e0\ub8b0\uc131\uc744 \uc5bb\uc2b5\ub2c8\ub2e4. \ub9ce\uc740 \ub2e4\uc774, \ud380\uce58, \ucee4\ud130 \ubc0f \uc815\ubc00 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc758 \uacbd\uc6b0 \uc774 \uc791\uc5c5 \uacbd\ub3c4 \ubc94\uc704\uac00 \uac00\ub2a5\ud55c \ucd5c\uace0 HRC\ub97c \ucd94\uad6c\ud558\ub294 \uac83\ubcf4\ub2e4 \ub354 \uc2e4\uc6a9\uc801\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

D2 \uacf5\uad6c\uc5d0 \uc774\ud6c4 \uc9c8\ud654 \ucc98\ub9ac\ub97c \ud558\uac70\ub098, PVD \ucf54\ud305<\/a>, or another high-temperature surface treatment, choose a tempering temperature that accounts for the coating temperature. Normally, temper the core steel above the later coating temperature to avoid unexpected hardness loss.<\/p>\n\n\n\n

\ub2e4\uc591\ud55c D2 \ud234\ub9c1 \uc801\uc6a9 \ubd84\uc57c\uc5d0 \ub300\ud55c \ubaa9\ud45c \uacbd\ub3c4<\/h2>\n\n\n\n

\uc2e4\uc81c \uc801\uc6a9\uc5d0\uc11c \uc791\uc5c5 \uacbd\ub3c4\ub294<\/a> D2 \uacf5\uad6c\uac15\uc758 \uacbd\uc6b0 \uc77c\ubc18\uc801\uc73c\ub85c 56~62 HRC \uc0ac\uc774\uc5d0\uc11c \uc120\ud0dd\ub429\ub2c8\ub2e4. \uacbd\ub3c4\uac00 \ub192\uc744\uc218\ub85d \ub0b4\ub9c8\ubaa8\uc131\uc740 \ud5a5\uc0c1\ub418\uc9c0\ub9cc \uce58\ud551 \ubc0f \uade0\uc5f4 \uc704\ud5d8\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4<\/a>.<\/p>\n\n\n\n

\uc801\uc6a9 \ubd84\uc57c<\/th>\uc77c\ubc18\uc801\uc778 \ud45c\uc801 \uacbd\ub3c4<\/th>\uc120\ud0dd \ub17c\ub9ac<\/th><\/tr><\/thead>
\uc7a5\uae30 \uc0dd\uc0b0 \ube14\ub7ad\ud0b9 \ub2e4\uc774<\/td>58\u201362 HRC<\/td>\uade0\ud615 \ubaa8\uc11c\ub9ac \ub9c8\ubaa8 \ubc0f \uade0\uc5f4 \uc704\ud5d8<\/td><\/tr>
\ube14\ub7ad\ud0b9 \ud380\uce58<\/td>58\u201362 HRC<\/td>\ub0b4\ub9c8\ubaa8\uc131\uc744 \uc720\uc9c0\ud558\uba74\uc11c \ud30c\uc190 \uc704\ud5d8\uc744 \uc904\uc774\uc138\uc694.<\/td><\/tr>
\uc131\ud615 \ubc0f \ubca4\ub529 \ub2e4\uc774<\/td>58\u201360 HRC<\/td>\ub0b4\uad6c\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \ud30c\uc190\uc744 \uc904\uc785\ub2c8\ub2e4.<\/td><\/tr>
\uc2ac\ub9ac\ud305 \ucee4\ud130 \ubc0f \uc804\ub2e8 \ube14\ub808\uc774\ub4dc<\/td>58\u201361 HRC<\/td>\uc5f0\ub9c8 \uc808\uc0ad \uc2dc\uc5d0\ub3c4 \ub0a0 \uc720\uc9c0\ub825\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/td><\/tr>
\ub0c9\uac04 \uc555\ucd9c \ud234\ub9c1<\/td>58\u201362 HRC<\/td>\uc555\ucd95 \uac15\ub3c4, \uc778\uc131 \ubc0f \ub9c8\ubaa8\uc758 \uade0\ud615\uc744 \uc720\uc9c0\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>
\uac8c\uc774\uc9c0 \ubc0f \uce21\uc815 \ub3c4\uad6c<\/td>58\u201360 HRC<\/td>\uce58\uc218 \uc548\uc815\uc131\uacfc \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc6b0\uc120\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>
\ub098\uc0ac\uc0b0 \uc555\uc5f0 \ub2e4\uc774<\/td>58\u201360 HRC<\/td>\ud45c\uba74 \ub9c8\ubaa8 \uc800\ud56d\uc131\uacfc \uc555\ucd95 \uac15\ub3c4\ub97c \uc720\uc9c0\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>
\uc18c\ud615 \uc5f0\ub9c8\uc131 \ud50c\ub77c\uc2a4\ud2f1 \uae08\ud615 \uc778\uc11c\ud2b8<\/td>58\u201360 HRC<\/td>\ub0b4\ub9c8\ubaa8\uc131\uc774 \uc694\uad6c\ub418\ub294 \uacbd\uc6b0\uc5d0 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ucda9\uaca9\uc5d0 \ubbfc\uac10\ud55c \uacf5\uad6c\uc758 \uacbd\uc6b0 \ucd5c\ub300 \uacbd\ub3c4\uac00 \ud56d\uc0c1 \ucd5c\uc120\uc758 \uc120\ud0dd\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uc57d\uac04 \ub0ae\uc740 \uacbd\ub3c4\uc640 \ub354 \ub098\uc740 \uc778\uc131 \ubc0f \uc548\uc815\uc131\uc740 \uade0\uc5f4 \uc704\ud5d8\uc774 \uc788\ub294 \ub192\uc740 \uacbd\ub3c4\ubcf4\ub2e4 \ub354 \uae34 \uc0ac\uc6a9 \uc218\uba85\uc744 \uc81c\uacf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\n

D2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \ucc38\uace0 \uc790\ub8cc, \uc778\uc1c4\uc6a9 PDF<\/strong><\/p>\n\n\n\n

\uacf5\uc815 \ud30c\ub77c\ubbf8\ud130, \ud15c\ud37c\ub9c1 \uacbd\ub3c4 \ucc28\ud2b8, \uc6a9\ub3c4\ubcc4 \uc791\uc5c5 \uacbd\ub3c4, \uc5f0\ub77d\ucc98\ub97c \ub2f4\uc740 A4 2\ud398\uc774\uc9c0\uc785\ub2c8\ub2e4. PDF\ub294 \uc601\uc5b4\ub85c \uc81c\uacf5\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

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PDF \ub2e4\uc6b4\ub85c\ub4dc, 413 KB<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n

\ub2e8\uba74 \ud06c\uae30 \ubc0f \uc5f4\ucc98\ub9ac \uc704\ud5d8<\/h2>\n\n\n\n

Section size strongly affects D2 heat treatment. Thick sections heat and cool more slowly than thin sections. Sharp corners, blind holes, and sudden thickness changes increase distortion and cracking risk.<\/p>\n\n\n\n

\ub300\ud615 D2 \uacf5\uad6c\ub294 \ucc9c\ucc9c\ud788 \uade0\uc77c\ud558\uac8c \uac00\uc5f4\ud558\uc2ed\uc2dc\uc624. \ud45c\uba74\uc774 \uacbd\ud654 \uc628\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\ub294 \ub3d9\uc548 \uc2ec\ubd80\uac00 \ud6e8\uc52c \ucc28\uac11\uac8c \uc720\uc9c0\ub418\uba74 \ub0b4\ubd80 \uc751\ub825\uc774 \uc2ec\ud574\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\uac83\uc774 \ub300\ud615 \ube14\ub85d\uacfc \ubcf5\uc7a1\ud55c \uacf5\uad6c\uc5d0 \uc608\uc5f4\uc774 \ud2b9\ud788 \uc911\uc694\ud55c \uc774\uc720\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub2f4\uae08\uc9c8 \uc911\uc5d0 \uc587\uc740 \ub2e8\uba74\uc740 \ub450\uaebc\uc6b4 \ub2e8\uba74\ubcf4\ub2e4 \ube60\ub974\uac8c \ub0c9\uac01\ub418\uace0 \ubcc0\ud0dc\ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubd88\uade0\uc77c\ud55c \ubcc0\ud0dc\ub294 \ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac\uc640 \uae09\uaca9\ud55c \ub2e8\uba74 \ubcc0\ud654 \uadfc\ucc98\uc5d0\uc11c \ub0b4\ubd80 \uc751\ub825\uc744 \uc0dd\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc88b\uc740 \uacf5\uad6c \uc124\uacc4\ub294 \ub0a0\uce74\ub85c\uc6b4 \ub0b4\ubd80 \ubaa8\uc11c\ub9ac\ub97c \ucd5c\uc18c\ud654\ud558\uace0 \ubd88\ud544\uc694\ud55c \ub450\uaed8 \ubcc0\ud654\ub97c \ud53c\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub9e4\uc6b0 \ud070 \ub2e8\uba74\uc758 \uacbd\uc6b0, \uacf5\ub7ad\uc73c\ub85c\ub294 \ud544\uc694\ud55c \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud560 \ub9cc\ud07c \uc911\uc2ec\ubd80\ub97c \ucda9\ubd84\ud788 \ube60\ub974\uac8c \ub0c9\uac01\uc2dc\ud0a4\uc9c0 \ubabb\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf4\ub2e4 \uac15\ub825\ud55c \ub0c9\uac01\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc9c0\ub9cc, \uac15\ud55c \ub2f4\uae08\uc9c8\uc740 \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\ub3c4 \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub300\ud615 D2 \uacf5\uad6c\uc5d0\ub294 \ub2e8\uc77c \uace0\uc815 \uc5f4\ucc98\ub9ac \uc2a4\ucf00\uc904\ubcf4\ub2e4\ub294 \uacf5\uc815 \uc870\uc815\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc5f4\ucc98\ub9ac \uc2dc\uac04\uc740 \ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ub450\uaed8 1\uc778\uce58(25mm)\ub2f9 \ucd5c\uc18c 2\uc2dc\uac04\uc744 \uae30\uc900\uc73c\ub85c \ud558\uba70, \uc5f4\ucc98\ub9ac \uc8fc\uae30 \uc0ac\uc774\uc5d0\ub294 \uc2e4\uc628\uc73c\ub85c \ub0c9\uac01\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

D2 \uc5f4\ucc98\ub9ac \uc2dc \ud754\ud788 \ubc1c\uc0dd\ud558\ub294 \ubb38\uc81c\uc810<\/h2>\n\n\n\n

1. \uacfc\uc5f4<\/h3>\n\n\n\n

Overheating happens when you austenitize D2 above the recommended range or soak it too long. It can cause grain coarsening, excessive retained austenite, brittleness, low hardness, and an increased risk of cracking.<\/p>\n\n\n\n

\ud574\uacb0\ucc45\uc740 \ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub77c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uc640 \uc720\uc9c0 \uc2dc\uac04\uc744 \uc81c\uc5b4\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

2. \uacfc\uc5f4<\/h3>\n\n\n\n

\uacfc\uc18c \uac00\uc5f4\uc740 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uac00 \ub108\ubb34 \ub0ae\uac70\ub098 \uc720\uc9c0 \uc2dc\uac04\uc774 \ub108\ubb34 \uc9e7\uc744 \ub54c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \ud569\uae08 \ud0c4\ud654\ubb3c\uc774 \uc644\uc804\ud788 \uc6a9\ud574\ub418\uc9c0 \uc54a\uc544 \ub2f4\uae08\uc9c8 \ud6c4 \uc608\uc0c1\ub418\ub294 \uacbd\ub3c4\ub97c \uc5bb\uc9c0 \ubabb\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc774\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub0ae\uc740 \uacbd\ub3c4, \uc5f4\uc545\ud55c \ub0b4\ub9c8\ubaa8\uc131 \ubc0f \uc800\ud558\ub41c \uc0ac\uc6a9 \uc131\ub2a5\uc744 \ucd08\ub798\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

3. \ud45c\uba74 \ud0c8\ud0c4<\/h3>\n\n\n\n

D2\uac00 \ubcf4\ud638 \uc7a5\uce58 \uc5c6\uc774 \uac00\uc5f4\ub428<\/a>, \ud45c\uba74\uc740 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uacfc\uc815\uc5d0\uc11c \ud0c4\uc18c\ub97c \uc783\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud0c8\ud0c4\ub41c \ud45c\uba74\uc740 \uacbd\ud654 \ud6c4\uc5d0\ub3c4 \uc5f0\uc9c8 \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud558\uc5ec \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc800\ud558\uc2dc\ud0a4\uace0 \ubcc0\ud615 \uc704\ud5d8\uc744 \uc99d\uac00\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc9c4\uacf5 \uc5f4\ucc98\ub9ac, \uc81c\uc5b4 \ubd84\uc704\uae30 \uc5f4\ucc98\ub9ac, \uc911\uc131 \uc5fc\uc695 \ub610\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \ud638\uc77c \ud3ec\uc7a5\uc744 \ud1b5\ud574 \uc774\ub7ec\ud55c \ubb38\uc81c\ub97c \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

4. \uc9c0\uc5f0 \ub2f4\uae08\uc9c8<\/h3>\n\n\n\n

D2\ub294 \ub2f4\uae08\uc9c8 \ud6c4 \uc57d 120\u2013150\u00b0F (50\u201366\u00b0C)\ub85c \ub0c9\uac01\ub418\uc5c8\uc744 \ub54c \uc989\uc2dc \ud15c\ud37c\ub9c1\ud574\uc57c \ud569\ub2c8\ub2e4. \uac13 \ub2f4\uae08\uc9c8\ud55c D2\ub294 \uc751\ub825\uc774 \ub192\uc740 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub97c \ud568\uc720\ud558\uace0 \uc788\uc5b4 \ud15c\ud37c\ub9c1\uc744 \uc9c0\uc5f0\ud558\uba74 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uacbd\ud654\ub41c D2\uac15\uc744 \uc5f4\ucc98\ub9ac \uc5c6\uc774 \ud558\ub8fb\ubc24 \ub3d9\uc548 \ubc29\uce58\ud558\ub294 \uac83\uc740 \uc704\ud5d8\ud558\uba70, \ud2b9\ud788 \ubcf5\uc7a1\ud55c \uacf5\uad6c\ub098 \ubb34\uac70\uc6b4 \ubd80\ud488\uc758 \uacbd\uc6b0 \ub354\uc6b1 \uadf8\ub807\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

5. \ubd80\uc801\uc808\ud55c \ub2f4\uae08\uc9c8 \uc628\ub3c4<\/h3>\n\n\n\n

\ub192\uc740 \uacbd\ub3c4\ub97c \uc704\ud574 \uc800\uc628\uc5d0\uc11c D2\ub97c \ud15c\ud37c\ub9c1\ud558\uac70\ub098 \ub354 \ub098\uc740 \uc548\uc815\uc131\uc744 \uc704\ud574 \ub354 \ub192\uc740 \uc628\ub3c4\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud15c\ud37c\ub9c1 \uc628\ub3c4\ub294 \uc801\uc6a9 \ubd84\uc57c\uc640 \uc77c\uce58\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub9ce\uc740 \uc0b0\uc5c5\uc6a9 \uacf5\uad6c\uc758 \uacbd\uc6b0, 900~960\u00b0F(480~515\u00b0C)\uc5d0\uc11c \ub450 \ubc88 \uc5f4\ucc98\ub9ac\ud558\ub294 \uac83\uc774 \ud55c \ubc88 \uc800\uc628 \uc5f4\ucc98\ub9ac\ud558\ub294 \uac83\ubcf4\ub2e4 \ub354 \uc548\uc815\uc801\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

6. \uc124\uacc4 \uc720\ubc1c \ub2f4\uae08\uc9c8 \uade0\uc5f4<\/h3>\n\n\n\n

\uc77c\ubd80 D2 \uacf5\uad6c\ub294 \uac15\uc7ac \ud488\uc9c8\uc774 \uc544\ub2cc \ud615\uc0c1 \ub54c\ubb38\uc5d0 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ub0a0\uce74\ub85c\uc6b4 \ub0b4\ubd80 \ubaa8\uc11c\ub9ac, \uae4a\uc740 \uc790\uad6d, \ub9c9\ud78c \uad6c\uba4d, \ub450\uaebc\uc6b4 \ub2e8\uba74 \uc606\uc758 \uc587\uc740 \ubcbd \ubc0f \uae09\uaca9\ud55c \ub2e8\uba74 \ubcc0\ud654\ub294 \ubaa8\ub450 \uade0\uc5f4 \uc704\ud5d8\uc744 \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac00\ub2a5\ud55c \uacbd\uc6b0 \ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac\ub97c \ub465\uae00\uac8c \ud558\uace0, \ub2e8\uba74 \ubcc0\ud654\ub97c \uc904\uc774\uba70, \uc5f4\ucc98\ub9ac\ub97c \uace0\ub824\ud558\uc5ec \ubcf5\uc7a1\ud55c \uacf5\uad6c\ub97c \uc124\uacc4\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

7. \uc5f4\ucc98\ub9ac \ud6c4 \uc5f0\uc0ad \uc190\uc0c1<\/h3>\n\n\n\n

D2\ub294 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub6f0\uc5b4\ub098\ubbc0\ub85c \uacf5\uaca9\uc801\uc778 \uc5f0\uc0ad<\/a> \uad6d\ubd80\uc801\uc778 \uc5f4\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \ud45c\uba74\uc774 \uc5f0\ud654\ub418\uac70\ub098, \uc5f0\uc0ad \ud654\uc0c1\uc774 \ubc1c\uc0dd\ud558\uac70\ub098, \uc595\uc740 \ud45c\uba74 \uade0\uc5f4\uc774 \uc0dd\uae38 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uacbd\ud654 \ud6c4 D2\ub294 \uac00\ubcbc\uc6b4 \ud328\uc2a4, \uc801\uc808\ud55c \ub0c9\uac01\uc218 \ubc0f \uc81c\uc5b4\ub41c \uc5f0\uc0ad \uc5ec\uc720\ub85c \uc5f0\uc0ad\ud558\uc2ed\uc2dc\uc624. \uc911\uc694\ud55c \uacf5\uad6c\uc758 \uacbd\uc6b0 \uc911\uc5f0\uc0ad \ud6c4 \uc800\uc628 \uc751\ub825 \uc644\ud654 \ud15c\ud37c\ub9c1\uc744 \uace0\ub824\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 D2 \/ 1.2379 \/ SKD11 \uacf5\uad6c\uac15\uc744 \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\ub85c \uacf5\uae09\ud558\uba70, \uacbd\ud654, \ub2f4\uae08\uc9c8, \uadf9\uc800\uc628 \ucc98\ub9ac \ub610\ub294 \ud15c\ud37c\ub9c1\uacfc \uac19\uc740 \ucd5c\uc885 \uc5f4\ucc98\ub9ac \uc11c\ube44\uc2a4\ub294 \uc81c\uacf5\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uaddc\uaca9 \ubc94\uc704, \uacf5\ucc28, \ucd5c\uc18c \uc8fc\ubb38\ub7c9 \ubc0f \ub0a9\uae30\ub294 \ub2f9\uc0ac\uc758 \uacf5\uad6c\uac15 \uacf5\uae09 \ub2a5\ub825 \ud398\uc774\uc9c0\uc5d0\uc11c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4<\/a>. \ubcf8 \uac00\uc774\ub4dc\ub294 \uc5f4\ucc98\ub9ac \ud30c\ub77c\ubbf8\ud130, \uacbd\ub3c4 \ub370\uc774\ud130 \ubc0f \uacf5\uc815 \uad8c\uc7a5 \uc0ac\ud56d\uc744 \uace0\uac1d\uc744 \uc704\ud55c \uc77c\ubc18\uc801\uc778 \uae30\uc220 \uc9c0\uc6d0 \ucc38\uace0 \uc790\ub8cc\ub85c \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc2e4\uc81c \uc5f4\ucc98\ub9ac \uacb0\uacfc\ub294 \uc6a9\uad11\ub85c \uc6a9\ub7c9, \ub2e8\uba74 \ud06c\uae30, \uacf5\uad6c \ud615\uc0c1, \uc7ac\ub8cc \uc0c1\ud0dc, \ub2f4\uae08\uc9c8 \ubc29\uc2dd \ubc0f \uacf5\uc815 \uc81c\uc5b4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uace0\uac1d\uc758 \uc5f4\ucc98\ub9ac \uc124\ube44\uc5d0\uc11c \ud2b9\uc815 \uacf5\uad6c \uc801\uc6a9 \ubc0f \uc0dd\uc0b0 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \ucd5c\uc885 \uc5f4\ucc98\ub9ac \uc808\ucc28 \ubc0f \uac80\uc99d\uc744 \uc218\ud589\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"

D2 Tool Steel Heat Treatment Guide D2 tool steel is typically heat-treated by preheating to 1200\u20131250\u00b0F \/ 649\u2013677\u00b0C, austenitizing at 1795\u20131875\u00b0F \/ 980\u20131025\u00b0C, quenching in air, gas, oil, or a salt bath (depending on section size), and double-tempering at 900\u2013960\u00b0F \/ 480\u2013515\u00b0C. In many cold-work tooling applications, this process produces about 58\u201360 HRC while improving […]<\/p>\n","protected":false},"author":1,"featured_media":15078,"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-11776","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nD2 Heat Treatment Guide: Tempering Chart, Hardness & Process<\/title>\n<meta name=\"description\" content=\"See D2 heat treatment temperatures, quenching methods, tempering chart, cryogenic treatment, and final hardness range. 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Tool Steel Heat Treatment Guide D2 tool steel is typically heat-treated by preheating to 1200\u20131250\u00b0F \/ 649\u2013677\u00b0C, austenitizing at 1795\u20131875\u00b0F \/ 980\u20131025\u00b0C, quenching in air, gas, oil, or a salt bath (depending on section size), and double-tempering at 900\u2013960\u00b0F \/ 480\u2013515\u00b0C. In many cold-work tooling applications, this process produces about 58\u201360 HRC while improving…","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-12x12.avif",12,12,true]},"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"D2 Tool Steel Heat Treatment Guide D2 tool steel is typically heat-treated by preheating to 1200\u20131250\u00b0F \/ 649\u2013677\u00b0C, austenitizing at 1795\u20131875\u00b0F \/ 980\u20131025\u00b0C, quenching in air, gas, oil, or a salt bath (depending on section size), and double-tempering at 900\u2013960\u00b0F \/ 480\u2013515\u00b0C. In many cold-work tooling applications, this process produces about 58\u201360 HRC while improving…","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11776","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=11776"}],"version-history":[{"count":20,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11776\/revisions"}],"predecessor-version":[{"id":24107,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11776\/revisions\/24107"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media\/15078"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=11776"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}