{"id":16744,"date":"2026-07-19T12:16:37","date_gmt":"2026-07-19T04:16:37","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=16744"},"modified":"2026-08-27T16:00:32","modified_gmt":"2026-08-27T08:00:32","slug":"steel-heat-color-chart","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/steel-heat-color-chart\/","title":{"rendered":"\uac15\ucca0 \uc5f4\ucc98\ub9ac \uc0c9\uc0c1\ud45c: \ubc1c\uad11 \uc0c9\uc0c1\ubcc4 \uc628\ub3c4 (\u00b0F\/\u00b0C)"},"content":{"rendered":"

\uac15\ucca0 \uc5f4\ucc98\ub9ac \uc0c9\uc0c1\ud45c<\/h1>\n\n\n\n

\uac15\ucca0\uc740 \uac00\uc5f4\ub428\uc5d0 \ub530\ub77c \uc608\uce21 \uac00\ub2a5\ud55c \uc21c\uc11c\ub85c \uc0c9\uc774 \ubcc0\ud569\ub2c8\ub2e4. \uc57d 677\u00b0C(1,250\u00b0F)\uc5d0\uc11c\ub294 \uc9d9\uc740 \ubd89\uc740\uc0c9\uc744 \ub760\uace0, \uc57d 1,371\u00b0C(2,500\u00b0F)\uc5d0\uc11c\ub294 \ubc31\uc5f4 \uc0c1\ud0dc\uac00 \ub418\uba70, \ud15c\ud37c\ub9c1 \uacfc\uc815\uc5d0\uc11c\ub294 193~371\u00b0C(380~700\u00b0F) \uc0ac\uc774\uc5d0\uc11c \uc0b0\ud654\ub9c9\uc758 \uc587\uc740 \ub9c9 \uc0c9\uae54(\uc9da\uc0c9, \ubcf4\ub77c\uc0c9, \ud30c\ub780\uc0c9)\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \ubcf4\uc774\ub294 \uc0c9\uc740 \ub450 \uac00\uc9c0 \ubb3c\ub9ac\uc801 \ud604\uc0c1 \uc911 \uc5b4\ub5a4 \ud604\uc0c1\uc774 \uc77c\uc5b4\ub098\ub294\uc9c0\uc5d0 \ub530\ub77c \uacb0\uc815\ub429\ub2c8\ub2e4. \ud558\ub098\ub294 \ub2e8\uc870 \uc628\ub3c4\uc5d0\uc11c\uc758 \ubc31\uc5f4 \ud604\uc0c1\uc774\uace0, \ub2e4\ub978 \ud558\ub098\ub294 \ub0ae\uc740 \ud15c\ud37c\ub9c1 \uc628\ub3c4\uc5d0\uc11c\uc758 \uc0b0\ud654\ub9c9 \uac04\uc12d \ud604\uc0c1\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac15\ucca0\uc774 \uac00\uc5f4\ub418\uba74 \uc0c9\uc774 \ubcc0\ud558\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?<\/h2>\n\n\n\n

\uac15\ucca0\uc744 \uac00\uc5f4\ud560 \ub54c \ub098\ud0c0\ub098\ub294 \uc0c9 \ubcc0\ud654\ub294 \uc628\ub3c4 \ubc94\uc704\uc5d0 \ub530\ub77c \ub450 \uac00\uc9c0 \uc11c\ub85c \ub2e4\ub978 \ubb3c\ub9ac\uc801 \ud604\uc0c1, \uc989 \uace0\uc628\uc5d0\uc11c\uc758 \ubc31\uc5f4 \ud604\uc0c1\uacfc \uc800\uc628\uc5d0\uc11c\uc758 \ubc15\ub9c9 \uac04\uc12d \ud604\uc0c1\uc5d0\uc11c \ube44\ub86f\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uace0\uc628\uc5d0\uc11c \uac15\ucca0 \ubd84\uc790\ub294 \uacb0\uc815 \uaca9\uc790\uc810\uc744 \uc911\uc2ec\uc73c\ub85c \uaca9\ub82c\ud558\uac8c \uc9c4\ub3d9\ud569\ub2c8\ub2e4. \uc774 \uc5f4\uc5d0\ub108\uc9c0\uac00 \ucd95\uc801\ub428\uc5d0 \ub530\ub77c \uac15\ucca0\uc740 \uac00\uc2dc\uad11\uc120 \ud615\ud0dc\uc758 \uc804\uc790\uae30 \uc5d0\ub108\uc9c0\ub97c \ubc29\ucd9c\ud558\ub294\ub370, \uc774\ub97c \ubc31\uc5f4 \ud604\uc0c1\uc774\ub77c\uace0 \ud569\ub2c8\ub2e4. \ud751\uccb4 \ubcf5\uc0ac \ubb3c\ub9ac\ud559\uc5d0 \ub530\ub974\uba74 \uac00\uc5f4\ub41c \ubb3c\uccb4\uc758 \uc628\ub3c4\uac00 \uc0c1\uc2b9\ud568\uc5d0 \ub530\ub77c \ubc29\ucd9c\ub418\ub294 \ube5b\uc758 \uc804\uccb4\uc801\uc778 \uac15\ub3c4\uac00 \uc99d\uac00\ud558\uace0, \ucd5c\ub300 \uac15\ub3c4\ub294 \ub354 \uc9e7\uace0 \uc5d0\ub108\uc9c0\uac00 \ub192\uc740 \ud30c\uc7a5 \ucabd\uc73c\ub85c \uc774\ub3d9\ud569\ub2c8\ub2e4. \uc778\uac04\uc758 \ub208\uc740 \uba3c\uc800 \uc7a5\ud30c\uc7a5\uc778 \ubd89\uc740\uc0c9 \uc2a4\ud399\ud2b8\ub7fc\uc758 \ube5b\uc744 \uac10\uc9c0\ud558\uae30 \ub54c\ubb38\uc5d0 \uac00\uc5f4\ub41c \uac15\ucca0\uc740 \ucc98\uc74c\uc5d0\ub294 \ud76c\ubbf8\ud558\uace0 \ud0c1\ud55c \ubd89\uc740\uc0c9\uc73c\ub85c \ube5b\ub0a9\ub2c8\ub2e4. \uc628\ub3c4\uac00 \uc0c1\uc2b9\ud568\uc5d0 \ub530\ub77c \ub354 \uc9e7\uc740 \ud30c\uc7a5\uc758 \uc8fc\ud669\uc0c9, \uadf8 \ub2e4\uc74c\uc5d0\ub294 \ub178\ub780\uc0c9 \ube5b\uc774 \ub354 \ub192\uc740 \uac15\ub3c4\ub85c \ubc29\ucd9c\ub429\ub2c8\ub2e4. \uacb0\uad6d \uac15\ucca0\uc774 \ucda9\ubd84\ud788 \ub728\uac70\uc6cc\uc838 \ub179\uc0c9\uacfc \ud30c\ub780\uc0c9 \ud30c\uc7a5\uc744 \ubc29\ucd9c\ud558\uac8c \ub418\uba74, \ubaa8\ub4e0 \uac00\uc2dc\uad11\uc120 \uc0c9\uc774 \ud63c\ud569\ub418\uc5b4 \ud770\uc0c9\uc73c\ub85c \ubcf4\uc774\uac8c \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc73c\ub85c 371\u00b0C(700\u00b0F) \uc774\ud558\uc758 \ub0ae\uc740 \uc628\ub3c4\uc5d0\uc11c\ub294 \uac15\ucca0\uc774 \ubc1c\uad11\ud558\uae30 \uc804\uc5d0 \uc0c9 \ubcc0\ud654\uac00 \ubc1c\uc0dd\ud558\ub294\ub370, \uc774\ub294 \ubc31\uc5f4 \ud604\uc0c1\uc774 \uc544\ub2c8\ub77c \ud45c\uba74 \uc0b0\ud654 \uc791\uc6a9 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uae68\ub057\ud558\uace0 \uad11\ud0dd\uc774 \ub098\ub294 \uac15\ucca0\uc744 \uc0b0\ud654 \ubd84\uc704\uae30\uc5d0\uc11c \uac00\uc5f4\ud558\uba74 \uc0b0\uc18c\uac00 \ud45c\uba74\uc758 \ucca0\uacfc \ubc18\uc751\ud558\uc5ec \ubbf8\uc138\ud55c \uc0b0\ud654\ucca0 \ub9c9\uc744 \ud615\uc131\ud569\ub2c8\ub2e4. \uc774 \uc587\uace0 \ubc18\ud22c\uba85\ud55c \uc0b0\ud654\ub9c9\uc5d0 \ub2ff\ub294 \ube5b\uc740 \ubd80\ubd84\uc801\uc73c\ub85c \ub9c9 \ud45c\uba74\uc5d0\uc11c \ubc18\uc0ac\ub418\uace0, \uc77c\ubd80\ub294 \ub9c9\uc744 \ud22c\uacfc\ud55c \ud6c4 \uc544\ub798\ucabd \uae08\uc18d\uc5d0\uc11c \ubc18\uc0ac\ub429\ub2c8\ub2e4. \uc774\ub807\uac8c \ubc18\uc0ac\ub41c \ub450 \uc885\ub958\uc758 \ube5b \ud30c\ub3d9\uc774 \uac04\uc12d\uc744 \uc77c\uc73c\ud0a4\uace0, \uc0b0\ud654\ub9c9\uc758 \uc815\ud655\ud55c \ub450\uaed8\uc5d0 \ub530\ub77c \ud2b9\uc815 \ud30c\uc7a5\uc740 \uc0c1\uc1c4\ub418\uace0 \ub2e4\ub978 \ud30c\uc7a5\uc740 \uc99d\ud3ed\ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uac04\uc12d\uc73c\ub85c \uc778\ud574 \uc5f4\ucc98\ub9ac\ub41c \uac15\ucca0\uc5d0\uc11c \ubcfc \uc218 \uc788\ub294 \uc120\uba85\ud558\uace0 \ub69c\ub837\ud55c \uc0c9\uc0c1\uc774 \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \uac00\uc5f4 \uc2dc\uac04\uacfc \uc628\ub3c4\uac00 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \uc0b0\ud654\ub9c9\uc774 \ub450\uaebc\uc6cc\uc9c0\uace0, \uac04\uc12d\uc73c\ub85c \uc778\ud55c \uc0c9\uc0c1\uc740 \ub178\ub780\uc0c9, \uac08\uc0c9, \ubcf4\ub77c\uc0c9, \ud30c\ub780\uc0c9 \ub4f1 \uba85\ud655\ud55c \ubc94\uc704 \ub0b4\uc5d0\uc11c \uc810\uc9c4\uc801\uc73c\ub85c \ubcc0\ud654\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub2e8\uc870 \ubc0f \uacbd\ud654 \uc5f4\ucc98\ub9ac \uc0c9\uc0c1<\/h2>\n\n\n\n

\ub2e4\uc591\ud55c \uc5f4 \uc0c9\uc0c1\uc5d0 \ub300\ud55c \uc628\ub3c4 \uc218\uc900<\/h2>\n\n
\n\n \n \n \n \n \n \n \n \n \n \n
\uc5f4 \uc0c9\uc0c1<\/th>\n \u00b0F<\/th>\n \u00b0C<\/th>\n \uc0c9\uc0c1<\/th>\n <\/tr>\n <\/thead>\n
\ub178\ub780\uc0c9\/\ud770\uc0c9<\/td>\n 2,500<\/td>\n 1,371<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\ub178\ub780\uc0c9<\/td>\n 2,300<\/td>\n 1,260<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\ubc1d\uc740 \uc624\ub80c\uc9c0\uc0c9<\/td>\n 2,100<\/td>\n 1,149<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\uc8fc\ud669\uc0c9<\/td>\n 1,600<\/td>\n 871<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\ubc1d\uc740 \ube68\uac04\uc0c9<\/td>\n 1,500<\/td>\n 816<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\uccb4\ub9ac \ub808\ub4dc<\/td>\n 1,400<\/td>\n 760<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\uc5b4\ub450\uc6b4 (\uac80\uc740\uc0c9) \ube68\uac04\uc0c9<\/td>\n 1,250<\/td>\n 677<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n <\/tbody>\n<\/table>\n<\/div>\n\n

\ucd9c\ucc98: \ubca0\ub4e4\ub808\ud5f4 \uc2a4\ud2f8 \uc8fc\uc2dd\ud68c\uc0ac, 1936\ub144<\/em><\/p>\n\n\n\n

\ub2e8\uc870 \ubc0f \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uacfc\uc815 \uc911 \uc5f4 \ubcc0\uc0c9 \ud310\ub3c5<\/h3>\n\n\n\n

\uc218\uc138\uae30 \ub3d9\uc548 \ub300\uc7a5\uc7a5\uc774\ub4e4\uc740 \ub2e8\uc870 \ubc0f \uc624\uc2a4\ud14c\ub098\uc774\uc9d5(\uac15\ucca0\uc744 \uac00\uc5f4\ud558\uc5ec \uad6c\uc870\uac00 \uc644\uc804\ud788 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub85c \ubcc0\ud55c \ud6c4 \ub2f4\uae08\uc9c8\ud558\ub294 \uacfc\uc815) \uc911 \uc628\ub3c4\ub97c \uce21\uc815\ud558\uae30 \uc704\ud574 \ub728\uac70\uc6b4 \uac15\ucca0\uc758 \uc2dc\uac01\uc801 \ubc1c\uad11\uc5d0 \uc758\uc874\ud574 \uc654\uc2b5\ub2c8\ub2e4. \ub300\ub7b5 400\u00b0C\uc5d0\uc11c 700\u00b0C(752\u00b0F~1,292\u00b0F) \uc0ac\uc774\uc758 \uc628\ub3c4\uc5d0\uc11c \uac15\ucca0\uc740 \ucc98\uc74c\uc73c\ub85c \uc721\uc548\uc73c\ub85c \ubcf4\uc774\ub294 \ubc1c\uad11 \ud604\uc0c1\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc5b4\ub450\uc6b4 \ubc29\uc5d0\uc11c 400\u00b0C \uc815\ub3c4\uba74 \ud76c\ubbf8\ud55c \ubd89\uc740\uc0c9\uc774 \ubcf4\uc774\uace0, 500\u00b0C\uc5d0\uc11c 500\u00b0C(1,100\u00b0F~1,292\u00b0F) \uc815\ub3c4\uc5d0\uc11c\ub294 \ub69c\ub837\ud55c \ubd89\uc740\uc0c9\uc774 \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \uc57d 704\u00b0C\uc5d0\uc11c 800\u00b0C(1,300\u00b0F~1,472\u00b0F)\uc5d0 \uc774\ub974\uba74 \uc0c9\uc0c1\uc774 \ubc1d\uc740 \ubd89\uc740\uc0c9 \ub610\ub294 \uccb4\ub9ac \ub808\ub4dc\uc0c9\uc73c\ub85c \ubcc0\ud558\ub294\ub370, \uc774\ub294 \uc77c\ubc18 \ud0c4\uc18c \uacf5\uad6c\uac15\uc758 \uc784\uacc4 \uacbd\ud654 \ubc94\uc704\uc5d0 \ud574\ub2f9\ud558\uba70, \uc77c\ubc18\uc801\uc73c\ub85c \uc57d 700\u00b0C\uc5d0\uc11c 805\u00b0C(1,350\u00b0F~1,550\u00b0F) \uc0ac\uc774\uc5d0\uc11c \ub2f4\uae08\uc9c8\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \uc8fc\ud669\uc0c9 \ub610\ub294 \ubc1d\uc740 \uc8fc\ud669\uc0c9\uc744 \ub760\ub294 \uc628\ub3c4\ub294 \ub300\ub7b5 788\u00b0C\uc5d0\uc11c 900\u00b0C(1,450\u00b0F~1,652\u00b0F)\ub85c, \ub9ce\uc740 \ud569\uae08 \uacf5\uad6c\uac15\uc758 \ud45c\uc900 \uacbd\ud654 \ubc94\uc704\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uac15\uc885\uc740 \ud569\uae08 \uc6d0\uc18c\ub97c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uae30\uc9c0\uc5d0 \uc644\uc804\ud788 \uc6a9\ud574\uc2dc\ud0a4\uae30 \uc704\ud574 \ub354 \ub192\uc740 \uc628\ub3c4\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. 1,740\u00b0F(1,740\u00b0F) \uc774\uc0c1\uc5d0\uc11c\ub294 \uac15\uc774 \ub808\ubaac\uc0c9\uc5d0\uc11c \ubc1d\uc740 \ub178\ub780\uc0c9\uc73c\ub85c \ubcc0\ud558\uba70, \uc774 \uc628\ub3c4 \ubc94\uc704\uc5d0\uc11c \uace0\uc628 \uc791\uc5c5\uc6a9 \uacf5\uad6c\uac15\uacfc \uace0\uc18d\ub3c4\uac15\uc758 \uace0\uac15\ub3c4 \ub2e8\uc870 \uc791\uc5c5\uc774 \uc2dc\uc791\ub429\ub2c8\ub2e4. \uac00\uc7a5 \ub192\uc740 \uc628\ub3c4\uc778 1,100\u00b0C\uc5d0\uc11c 1,400\u00b0C(2,012\u00b0F~2,552\u00b0F)\uc5d0\uc11c\ub294 \uace0\uc18d\ub3c4\uac15\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\ub418\ub294\ub370, \uc774\ub54c \ub9e4\uc6b0 \uc548\uc815\uc801\uc778 \ud569\uae08 \ud0c4\ud654\ubb3c\uc744 \uc6a9\ud574\uc2dc\ud0a8 \ud6c4 \ub2f4\uae08\uc9c8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc720\ud1b5\uc5c5\uccb4 \ubc0f \uad6c\ub9e4\uc5c5\uccb4\ub97c \uc704\ud55c \uc18c\uc2f1 \uc815\ubcf4 \ub5142<\/a>, H13<\/a> \ub610\ub294 A2<\/a> \ub300\ub7c9 \uc0dd\uc0b0 \uc2dc, \uc774\ub7ec\ud55c \uc0c9\uc0c1 \ubc94\uc704\ub294 \uc790\uccb4 \uc6a9\uad11\ub85c\ub97c \ud3c9\uac00\ud558\ub294 \uac83\ubcf4\ub2e4\ub294 \uc81c\uac15 \uacf5\uc815\uc5d0\uc11c \uc624\uc2a4\ud14c\ub098\uc774\uc9d5 \uc628\ub3c4\uac00 \ub4f1\uae09\ubcc4\ub85c \ud06c\uac8c \ub2e4\ub978 \uc774\uc720\ub97c \uc774\ud574\ud558\ub294 \ub370 \ub354 \uc911\uc694\ud569\ub2c8\ub2e4. \uc77c\ubc18 \ud0c4\uc18c\uac15\uacfc \ubc31\uc5f4 \uace0\uc18d\ub3c4\uac15 \uc0ac\uc774\uc758 \ucc28\uc774\ub294 \uc0ac\uc18c\ud55c \uae30\uc220\uc801 \ucc28\uc774\uac00 \uc544\ub2d9\ub2c8\ub2e4. \ubc14\ub85c \uc774 \ucc28\uc774 \ub54c\ubb38\uc5d0 \uc778\uc99d\uc11c\uc0c1\uc73c\ub85c\ub294 \ube44\uc2b7\ud574 \ubcf4\uc774\ub294 \ub450 \uacf5\uad6c\uac15\uc774\ub77c\ub3c4 \uace0\uac1d \uce21\uc5d0\uc11c \uc644\uc804\ud788 \ub2e4\ub978 \uc5f4\ucc98\ub9ac \uc7a5\ube44\uc640 \uc81c\uc5b4\uac00 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac15\uc885\uc5d0 \ub530\ub77c \uc0c9\uc0c1 \ud310\ub2e8\uc774 \ub2ec\ub77c\uc9c0\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?<\/h3>\n\n\n\n

\uc5f4\ucc98\ub9ac \ub2f4\ub2f9\uc790\ub294 \ud2b9\uc815 \uc0c9\uc0c1\uc774 \ubaa8\ub4e0 \uac15\uc885\uc5d0\uc11c \ub3d9\uc77c\ud55c \uc628\ub3c4\ub97c \ub098\ud0c0\ub0b8\ub2e4\uace0 \uac00\uc815\ud560 \uc218 \uc5c6\uc73c\uba70, \uadf8 \uc774\uc720\ub294 \uc5ec\ub7ec \uac00\uc9c0 \uc57c\uae08\ud559\uc801 \uc694\uc778 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uace0\uc628\uc758 \uac15\ucca0\uc5d0\uc11c \ubc29\ucd9c\ub418\ub294 \ube5b\uc740 \uc644\ubcbd\ud55c \ud751\uccb4 \ubcf5\uc0ac\uac00 \uc544\ub2d9\ub2c8\ub2e4. \uadf8 \uac15\ub3c4\ub294 \uc7ac\ub8cc\uc758 \uc2a4\ud399\ud2b8\ub7fc \ubc29\uc0ac\uc728, \uc989 \ub3d9\uc77c \uc628\ub3c4\uc5d0\uc11c \uc774\uc0c1\uc801\uc778 \uacf5\ub3d9 \ubcf5\uc0ac\uccb4\uc5d0\uc11c \ubc29\ucd9c\ub418\ub294 \ubcf5\uc0ac\ub7c9\uc5d0 \ub300\ud55c \uac15\ucca0 \ud45c\uba74\uc5d0\uc11c \ubc29\ucd9c\ub418\ub294 \ubcf5\uc0ac\ub7c9\uc758 \ube44\uc728\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c0\ub294\ub370, \ubc29\uc0ac\uc728\uc740 \ud45c\uba74 \ud53c\ub9c9\uacfc \uc0b0\ud654\uc5d0 \ub9e4\uc6b0 \ubbfc\uac10\ud569\ub2c8\ub2e4. \ub610\ud55c \uac15\ucca0\uc758 \ud654\ud559\uc801 \uc870\uc131\uc5d0 \ub530\ub77c \uace0\uc628\uc5d0\uc11c\uc758 \uc0b0\ud654 \uc18d\ub3c4\uac00 \ub9e4\uc6b0 \ub2e4\ub985\ub2c8\ub2e4. \ud06c\ub86c \ud568\ub7c9\uc774 \ub192\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \uac19\uc740 \uace0\ud569\uae08\uac15\uc740 \uc0b0\ud654\uc5d0 \uac15\ud558\uace0 \uc77c\ubc18 \ud0c4\uc18c\uac15\ucc98\ub7fc \uc2a4\ucf00\uc77c\uc774\ub098 \ud53c\ub9c9\uc744 \ud615\uc131\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc0b0\ud654\ub9c9 \ud615\uc131\uc758 \ucc28\uc774\ub294 \ud2b9\uc815 \uc2e4\uc81c \uc628\ub3c4\uc5d0\uc11c \uc778\uc9c0\ub418\ub294 \ubc1d\uae30\uc640 \uc0c9\uc870\uc5d0 \uc9c1\uc811\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce58\ubbc0\ub85c, \ud45c\uc900 \ud0c4\uc18c\uac15 \uc0c9\uc0c1\ud45c\ub97c \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774\ub098 \uace0\ud569\uae08\uac15\uc5d0 \uc801\uc6a9\ud588\uc744 \ub54c \ub3d9\uc77c\ud558\uac8c \ud574\uc11d\ud560 \uc218 \uc5c6\ub294 \uac83\uc785\ub2c8\ub2e4. \ud2b9\uc815 \uac15\uc885\uc740 \ud654\ud559\uc801 \uc870\uc131\uc5d0 \ub530\ub77c \uc5c4\uaca9\ud55c \uc5f4\uc801 \ud55c\uacc4\ub97c \uac00\uc9c0\uae30\ub3c4 \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc804\ud1b5\uc801\uc778 \ub3c4\uac00\ub2c8\uac15\uc5d0\ub294 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8, \uc2dc\uba58\ud0c0\uc774\ud2b8, \uc778\ud654\ucca0\ub85c \uc774\ub8e8\uc5b4\uc9c4 3\uc6d0\uacc4 \uacf5\uc735\uc0c1\uc778 \uc2a4\ud14c\ub2e4\uc774\ud2b8\uac00 \ud3ec\ud568\ub420 \uc218 \uc788\ub294\ub370, \uc774\ub294 \uc57d 966\u00b0C(1,770\u00b0F) \uc815\ub3c4\uc758 \ub0ae\uc740 \uc628\ub3c4\uc5d0\uc11c \ub179\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc774\ub7ec\ud55c \uac15\ucca0\uc744 \ub2e4\ub8e8\ub294 \ub300\uc7a5\uc7a5\uc774\ub4e4\uc740 \uac15\ucca0\uc774 \ubc1d\uc740 \uc8fc\ud669\uc0c9\uc774\ub098 \ub178\ub780\uc0c9\uc73c\ub85c \ubcc0\ud560 \ub54c\uae4c\uc9c0 \ub194\ub450\uba74 \uc8fc\uad34 \ub0b4\ubd80\uc758 \uc2a4\ud14c\ub2e4\uc774\ud2b8\uac00 \ub179\uc544 \uace0\uc628 \ucde8\uc131(\uace0\uc628\uc5d0\uc11c \uadf9\ub3c4\ub85c \ucde8\uc57d\ud574\uc838 \ub9dd\uce58\uc9c8 \uc2dc \uc8fc\uad34\uac00 \ubd80\uc11c\uc9c0\ub294 \ud604\uc0c1)\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c, \ubd89\uc740\uc0c9\uc73c\ub85c \ube5b\ub098\ub294 \uac83\uc744 \ub9e4\uc6b0 \uc8fc\uc758 \uae4a\uac8c \uad00\ucc30\ud574\uc57c \ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc774\ub7ec\ud55c \uc774\uc720\ub85c \uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 \uace0\uac1d\uc774 \uc911\uc694\ud55c \uacf5\uc815\uc5d0\uc11c \uc721\uc548\uc73c\ub85c \ud310\ub2e8\ud558\ub294 \ub300\uc2e0, \uacf5\uc7a5 \uc2dc\ud5d8 \uc131\uc801\uc11c\ub97c \ucca8\ubd80\ud558\uc5ec \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uacf5\uad6c\uac15\uc744 \uacf5\uae09\ud569\ub2c8\ub2e4. \uac15\uc885\ubcc4\ub85c, \uc2ec\uc9c0\uc5b4 \uac19\uc740 \uac15\uc885\uc774\ub77c\ub3c4 \uc0dd\uc0b0 \ubc30\uce58\uc5d0 \ub530\ub77c \ud654\ud559\uc801 \uc870\uc131\uc774 \uc0c1\ub2f9\ud788 \ub2e4\ub974\uae30 \ub54c\ubb38\uc5d0, \uc0c9\uc0c1\ub9cc\uc73c\ub85c\ub294 \ubb38\uc11c\ud654\ub41c \uacf5\uc815\uc744 \ub300\uccb4\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ubb3c\ub54c \uc0c9\uae54\uacfc \uadf8 \uc758\ubbf8<\/h2>\n\n\n\n

\ub2e4\uc591\ud55c \uc0c9\uc0c1\uc5d0 \ub300\ud55c \uc628\ub3c4 \uc218\uc900<\/h2>\n\n
\n\n \n \n \n \n \n \n \n \n \n \n
\ud15c\ud37c \uceec\ub7ec<\/th>\n \u00b0F<\/th>\n \u00b0C<\/th>\n \uc0c9\uc0c1<\/th>\n <\/tr>\n <\/thead>\n
\ubc1d\uc740 \ud68c\uc0c9<\/td>\n 700<\/td>\n 371<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\ud68c\uc0c9<\/td>\n 660<\/td>\n 349<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\ud30c\ub780\uc0c9<\/td>\n 580<\/td>\n 304<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\ube14\ub8e8\/\ube14\ub799(\uac74\uba54\ud0c8)<\/td>\n 500<\/td>\n 260<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\uc9da\uc0c9\/\uac08\uc0c9<\/td>\n 475<\/td>\n 246<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\ube68\ub300<\/td>\n 460<\/td>\n 238<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n
\ud0e0 \uaecd\uc9c8<\/td>\n 380<\/td>\n 193<\/td>\n \n <\/span>\n <\/td>\n <\/tr>\n <\/tbody>\n<\/table>\n<\/div>\n\n

\ucd9c\ucc98: \ubca0\ub4e4\ub808\ud5f4 \uc2a4\ud2f8 \uc8fc\uc2dd\ud68c\uc0ac, 1936\ub144<\/em><\/p>\n\n\n\n

\uacbd\ub3c4 \ubc0f \uc778\uc131\uc5d0 \ub9de\ub294 \uc0c9\uc0c1\uc73c\ub85c \ub2f4\uae08\uc9c8\ud558\uae30<\/h3>\n\n\n\n

\ud15c\ud37c\ub9c1\uc740 \ub2f4\uae08\uc9c8 \uacbd\ud654 \ud6c4 \ucde8\uc131\uc744 \uc904\uc774\uace0 \ub0b4\ubd80 \uc751\ub825\uc744 \uc644\ud654\ud558\uba70 \uc778\uc131\uc744 \ud68c\ubcf5\ud558\uae30 \uc704\ud574 \uc218\ud589\ud558\ub294 \uc544\uc784\uacc4 \uc5f4\ucc98\ub9ac\uc785\ub2c8\ub2e4. \uac15\ucca0\uc744 \uacf5\uae30 \uc911\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud560 \ub54c, \uc5f0\ub9c8\ub41c \ud45c\uba74\uc5d0 \ub098\ud0c0\ub098\ub294 \uc0b0\ud654\ubb3c \uc0c9\uc0c1\uc740 \uc624\ub7ab\ub3d9\uc548 \ub3c4\ub2ec\ud55c \uc628\ub3c4\uc640 \uadf8\uc5d0 \ub530\ub978 \uacbd\ub3c4 \ubc0f \uc778\uc131 \uc0ac\uc774\uc758 \uade0\ud615\uc744 \uc2dc\uac01\uc801\uc73c\ub85c \ub098\ud0c0\ub0b4\ub294 \uc9c0\ud45c\ub85c \uc0ac\uc6a9\ub418\uc5b4 \uc654\uc2b5\ub2c8\ub2e4. \uc57d 220\u00b0C(430\u00b0F)\uc5d0\uc11c \ub098\ud0c0\ub098\ub294 \uc605\uc740 \ub178\ub780\uc0c9 \ub610\ub294 \uc9da\uc0c9\uc740 \ub9e4\uc6b0 \uc587\uc740 \uc0b0\ud654\ub9c9\uc744 \ub098\ud0c0\ub0b4\uba70, \uac15\ucca0\uc774 \ub3c4\ub2ec\ud560 \uc218 \uc788\ub294 \ucd5c\ub300 \uacbd\ub3c4(\uc77c\ubc18\uc801\uc73c\ub85c 60~64 HRC)\uc5d0 \uac00\uae5d\uc9c0\ub9cc \uc778\uc131\uc740 \ub0ae\uc740 \uc0c1\ud0dc\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud15c\ud37c\ub9c1\uc740 \ub0b4\ub9c8\ubaa8\uc131\uacfc \ub0a0\uce74\ub85c\uc6b4 \ub0a0\uc774 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc904, \uc885\uc774 \uc808\ub2e8\uae30, \uac15\ucca0 \uc808\uc0ad \uacf5\uad6c \ub4f1\uc5d0 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc57d 238\u00b0C~254\u00b0C(460~490\u00b0F)\uc5d0\uc11c \ub098\ud0c0\ub098\ub294 \uc9d9\uc740 \uc9da\uc0c9 \ub610\ub294 \uae08\uc0c9\uc740 \uc0b0\ud654\ub9c9\uc774 \uc57d\uac04 \ub354 \ub450\uaecd\uace0 \uacbd\ub3c4\ub294 \uc57d\uac04 \ub0ae\uc9c0\ub9cc \uc778\uc131\uc740 \ud5a5\uc0c1\ub41c \uc0c1\ud0dc\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc774 \ubc94\uc704\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud380\uce58, \ub2e4\uc774, \uc804\ub2e8\ub0a0, \ub0c9\uac04 \ub04c\uacfc \uac19\uc774 \uc801\ub2f9\ud55c \ucda9\uaca9\uc5d0\ub3c4 \uae68\uc9c0\uc9c0 \uc54a\uc544\uc57c \ud558\ub294 \uc81c\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \ubcf4\ub77c\uc0c9 \ub610\ub294 \uc790\uc8fc\uc0c9\uc744 \ub764 \uac08\uc0c9\uc740 \uc57d 271~282\u00b0C(520~540\u00b0F)\uc5d0\uc11c \ub098\ud0c0\ub098\ub294\ub370, \uc774\ub294 \uc0b0\ud654\ub9c9\uc774 \ub354\uc6b1 \ub450\uaebc\uc6cc\uc9c0\uace0 \uacbd\ub3c4\ub294 \ub354 \ub0ae\uc544\uc9c0\ub294 \ubc18\uba74 \uc5f0\uc131\uacfc \uc778\uc131\uc740 \uc99d\uac00\ud568\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud2b9\uc131\uc740 \ubaa9\uacf5 \ub3c4\uad6c, \ub3c4\ub07c, \uc218\uc220 \ub3c4\uad6c, \ud504\ub808\uc2a4 \uacf5\uad6c \ub4f1\uc5d0 \uc790\uc8fc \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ud30c\ub780\uc0c9 \ub610\ub294 \uc9c4\ud55c \ud30c\ub780\uc0c9\uc740 \uc57d 293~316\u00b0C(560~600\u00b0F)\uc5d0\uc11c \ub098\ud0c0\ub098\ub294\ub370, \uc774\ub294 \ub450\uaecd\uace0 \uc870\ubc00\ud55c \uc0b0\ud654\uce35\uc744 \ub098\ud0c0\ub0b4\uba70 \uacbd\ub3c4\ub294 \ud06c\uac8c \uac10\uc18c\ud558\uc9c0\ub9cc \ucd5c\ub300\uc758 \ud0c4\uc131\uacfc \ucda9\uaca9 \uc800\ud56d\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud2b9\uc131 \ub54c\ubb38\uc5d0 \uc774 \uc0c9\uc0c1\uc740 \uc2a4\ud06c\ub8e8\ub4dc\ub77c\uc774\ubc84, \ubaa9\ud1b1, \uc2a4\ud504\ub9c1 \ub4f1\uc5d0 \uc0ac\uc6a9\ub418\uba70, \ud754\ud788 \uc2a4\ud504\ub9c1 \ud15c\ud37c\ub77c\uace0 \ubd88\ub9bd\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud2b9\uc815 \uc544\uc624\ubcf4\uac15 \ub4f1\uae09\uc5d0 \ub9de\ub294 \uacbd\ub3c4 \uc0c9\uc0c1\uc744 \uc6d0\ud558\ub294 \uad6c\ub9e4\uc790\ub294 \ud574\ub2f9 \ub4f1\uae09 \uac00\uc774\ub4dc\uc5d0 \ub098\uc640 \uc788\ub294 \uc791\uc5c5 \uacbd\ub3c4 \ubc94\uc704\ub97c \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4. \ub3d9\uc77c\ud55c \uacbd\ub3c4 \uc0c9\uc0c1\uc774\ub77c\ub3c4 \ud569\uae08 \uc131\ubd84\uc5d0 \ub530\ub77c \uacbd\ub3c4\uac00 \uc0c1\ub2f9\ud788 \ub2e4\ub97c \uc218 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc911\uc694 \uacbd\uace0: \uccad\uc0c9 \ucde8\uc131 \ubc0f \uac15\ud654 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ucde8\uc131<\/h3>\n\n\n\n

\ud0c4\uc18c\uac15 \uc2a4\ud504\ub9c1\uc758 \uacbd\uc6b0 \ud478\ub978\uc0c9\uc740 \ucd5c\ub300\uc758 \uc778\uc131\uc744 \ub098\ud0c0\ub0b4\uc9c0\ub9cc, \uc77c\ubc18 \ud0c4\uc18c\uac15\uacfc \uc77c\ubd80 \ud569\uae08\uac15\uc744 \uc77c\ubc18\uc801\uc73c\ub85c 230~370\u00b0C(450~700\u00b0F) \uc0ac\uc774\uc758 \ud478\ub978\uc0c9 \uc5f4\ucc98\ub9ac \ubc94\uc704\ub85c \uac00\uc5f4\ud558\uba74 \uccad\uc0c9 \ucde8\uc131\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \ud0c4\uc18c \uc6d0\uc790\uac00 \uc804\uc704\uc5d0 \ud3b8\uc11d\ub418\uc5b4 \uace0\uc815\ub418\ub294, \ubcc0\ud615 \uc2dc\ud6a8 \ucde8\uc131\uc758 \uac00\uc18d\ud654\ub41c \ud615\ud0dc\ub85c, \uc5f0\uc131\uacfc \ub178\uce58 \ucda9\uaca9 \uc778\uc131\uc774 \uac11\uc791\uc2a4\ub7fd\uace0 \uc608\uc0c1\uce58 \ubabb\ud558\uac8c \uac10\uc18c\ud558\ub294 \ud604\uc0c1\uc785\ub2c8\ub2e4. \uc774\uc640 \ub3d9\uc77c\ud55c \uc628\ub3c4 \ubc94\uc704\uc5d0\uc11c \uc5f4\ucc98\ub9ac\ub41c \uace0\uac15\ub3c4 \ud569\uae08\uac15 \ub610\ud55c \uc2ec\uac01\ud55c \ud615\ud0dc\uc758 1\ub2e8\uacc4 \ucde8\uc131\uc778 \ud15c\ud37c\ub9c1 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ucde8\uc131\uc5d0 \ub9e4\uc6b0 \ucde8\uc57d\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc774\uc720\ub85c \uace0\uac15\ub3c4 \uad6c\uc870 \ubd80\ud488\uacfc \uc911\uc694 \uacf5\uad6c\ub294 \uc774 \ud478\ub978\uc0c9 \uc5f4\ucc98\ub9ac \ubc94\uc704 \ub0b4\uc5d0\uc11c \uc5f4\ucc98\ub9ac\ud558\ub294 \uac83\uc774 \uc544\ub2c8\ub77c, \ubc18\ub4dc\uc2dc \uc774 \ubc94\uc704\ubcf4\ub2e4 \ud6e8\uc52c \ub0ae\uac70\ub098 \ud6e8\uc52c \ub192\uc740 \uc628\ub3c4\uc5d0\uc11c \uc5f4\ucc98\ub9ac\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub208\uc73c\ub85c \uc131\uaca9 \uc0c9\uae54\uc744 \ud310\ub2e8\ud560 \ub54c \ud754\ud788 \uc800\uc9c0\ub974\ub294 \uc2e4\uc218<\/h3>\n\n\n\n

\uc0c9\uc0c1\uc744 \uc774\uc6a9\ud55c \ud15c\ud37c\ub9c1\uc740 \uc624\ub79c \uc804\ud1b5\uc744 \uc790\ub791\ud558\ub294 \uae30\uc220\uc774\uc9c0\ub9cc, \uba87 \uac00\uc9c0 \uc911\uc694\ud55c \uc694\uc18c\ub97c \uac04\uacfc\ud558\uba74 \uc2dc\uac01\uc801 \ud310\ub2e8\uc5d0 \uc2ec\uac01\ud55c \uc624\ub958\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0b0\ud654\ub9c9 \uc0c9\uc0c1\uc740 \uc644\uc804\ud788 \uc5f0\ub9c8\ub418\uc5b4 \ubc1d\uc740 \uae08\uc18d \ud45c\uba74\uc774 \ub4dc\ub7ec\ub09c \uac15\ucca0\uc5d0\uc11c\ub9cc \uc81c\ub300\ub85c \ud615\uc131\ub418\uba70, \uc794\ub958 \uc624\uc77c, \uc2b5\uae30, \ub179, \uc2a4\ucf00\uc77c, \uc2ec\uc9c0\uc5b4 \uc9c0\ubb38\uae4c\uc9c0\ub3c4 \uc0b0\uc18c\uc640\uc758 \uade0\uc77c\ud55c \uc811\ucd09\uc744 \ubc29\ud574\ud558\uc5ec \uc0c9\uc0c1\uc774 \uc65c\uace1\ub418\uac70\ub098, \uc5bc\ub8e9\ub35c\ub8e9\ud574\uc9c0\uac70\ub098, \uc644\uc804\ud788 \uc798\ubabb\ub41c \uc0c9\uc0c1\uc774 \ub098\ud0c0\ub0a0 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c \uc0b0\ud654\ub9c9 \uc131\uc7a5\uc740 \uc628\ub3c4\uc640 \uc2dc\uac04\uc5d0 \ubaa8\ub450 \uc758\uc874\ud558\ub294 \ud655\uc0b0 \uc81c\uc5b4 \ubc18\uc751\uc774\ubbc0\ub85c, \ud2b9\uc815 \uc0c9\uc0c1\uc740 \ub2e8\uc77c \uc628\ub3c4\ub97c \ub098\ud0c0\ub0b4\ub294 \uac83\uc774 \uc544\ub2c8\ub77c \uc5f4 \ub178\ucd9c\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \ud45c\uc900 \uc0c9\uc0c1\ud45c\uc5d0\uc11c\ub294 \uac15\ucca0\uc744 450\u00b0F(232\u00b0C)\uc5d0\uc11c 1\uc2dc\uac04 \ub3d9\uc548 \uc720\uc9c0\ud558\uba74 \uc9c4\ud55c \ubcf4\ub77c\uc0c9\uc774 \ub098\ud0c0\ub09c\ub2e4\uace0 \ub098\uc640 \uc788\uc9c0\ub9cc, \ud1a0\uce58\ub85c 8\ubd84 \ub3d9\uc548 \ube60\ub974\uac8c \uac00\uc5f4\ud558\ub294 \uacbd\uc6b0\uc5d0\ub294 \ub3d9\uc77c\ud55c \ubcf4\ub77c\uc0c9\uc744 \ub098\ud0c0\ub0b4\uae30 \uc704\ud574 \ud6e8\uc52c \ub192\uc740 \uc628\ub3c4\uc778 \uc57d 640\u00b0F(380\u00b0C)\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc0c9\uc0c1\uc744 \uc774\uc6a9\ud55c \ube60\ub978 \ud1a0\uce58 \ud15c\ud37c\ub9c1\uc740 \uc885\uc885 \uc2ec\uac01\ud55c \uacfc\uc18c \ud15c\ud37c\ub9c1 \ub610\ub294 \uacfc\ub2e4 \ud15c\ud37c\ub9c1\uc73c\ub85c \uc774\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c \uc0c9\uc0c1 \uc628\ub3c4\ud45c\ub294 \uc77c\ubc18 \ud0c4\uc18c\uac15\uc5d0 \ub9de\ucdb0 \uc5c4\uaca9\ud558\uac8c \ubcf4\uc815\ub418\uc5b4 \uc788\uc73c\ubbc0\ub85c, \uc0b0\ud654\uc5d0 \ub300\ud55c \uc800\ud56d\uc131\uc774 \ud6e8\uc52c \uac15\ud55c \uace0\ud569\uae08\uac15\uc774\ub098 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc5d0 \uc801\uc6a9\ud558\uba74 \uc2ec\uac01\ud55c \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5f4\ucc98\ub9ac \uacfc\uc815\uc5d0\uc11c \ud569\uae08\uc774\ub098 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \uc605\uc740 \ub178\ub780\uc0c9\uc774 \ub420 \ub54c\uae4c\uc9c0 \uac00\uc5f4\ud558\uba74 \uc2e4\uc81c \uae08\uc18d \uc628\ub3c4\ub294 \ud0c4\uc18c\uac15 \ud45c\uc5d0\uc11c \uc81c\uc2dc\ud558\ub294 \uc628\ub3c4\ubcf4\ub2e4 \ud6e8\uc52c \ub192\uc544\uc838 \uacfc\ub3c4\ud55c \ud15c\ud37c\ub9c1\uacfc \uacf5\uad6c\uc758 \uacfc\ub3c4\ud55c \uc5f0\ud654\ub97c \ucd08\ub798\ud569\ub2c8\ub2e4. \ub610\ud55c, \ud45c\uba74 \uc0b0\ud654\uc0c9\uc740 \uc21c\uc804\ud788 \ud45c\uba74\uc801\uc778 \ud604\uc0c1\uc774\uba70, \uac15\ucca0\uc740 \uc5f4\uc804\ub3c4\uc728\uc774 \ub0ae\uae30 \ub54c\ubb38\uc5d0 \ub450\uaebc\uc6b4 \ubd80\ubd84\uc740 \ub0b4\ubd80\uac00 \uc678\ubd80\ubcf4\ub2e4 \ud6e8\uc52c \ub290\ub9ac\uac8c \uac00\uc5f4\ub418\ub294 \uc9c8\ub7c9 \ud6a8\uacfc\uac00 \ub450\ub4dc\ub7ec\uc9c0\uac8c \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \ub450\uaebc\uc6b4 \ubd80\ubd84\uc744 \ud45c\uba74\uc774 \ud30c\ub780\uc0c9\uc774 \ub420 \ub54c\uae4c\uc9c0 \uae09\uc18d \uac00\uc5f4\ud558\uba74 \uacf5\uad6c\uc758 \uc911\uc2ec\ubd80\ub294 \uc5ec\uc804\ud788 \ucc28\uac11\uace0 \ud15c\ud37c\ub9c1\uc774 \uc804\ud600 \ub418\uc9c0 \uc54a\uc544 \ub0b4\ubd80\uac00 \ub192\uc740 \uc751\ub825\uc744 \ubc1b\uace0 \ucde8\uc131\uc774 \uac15\ud574 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\uae30 \uc26c\uc6b4 \uc0c1\ud0dc\uac00 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc0c9 \uae30\ubc18 \uc628\ub3c4 \ud310\ub2e8\uc758 \ud55c\uacc4<\/h2>\n\n\n\n

\uc0c9\uc0c1\uc744 \uc774\uc6a9\ud558\ub294 \ubc29\ubc95\uc740 \uac04\ub2e8\ud558\uace0 \uc7a5\ube44\uac00 \ud544\uc694\ud558\uc9c0 \uc54a\uc9c0\ub9cc, \ud604\ub300\uc758 \uace0\uc815\ubc00 \uc0b0\uc5c5\uc6a9 \uc5f4\ucc98\ub9ac\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc744 \uc815\ub3c4\ub85c \uc2ec\uac01\ud55c \ud55c\uacc4\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uae08\uc18d\uc758 \ubc1c\uad11\uc774\ub098 \ud45c\uba74 \uc0b0\ud654\ubb3c\uc758 \uc0c9\uc0c1 \uc778\uc9c0\ub294 \uc8fc\ubcc0 \uc870\uba85\uc5d0 \ud06c\uac8c \uc88c\uc6b0\ub429\ub2c8\ub2e4. \uc5b4\ub450\uc6b4 \ubc29\uc5d0\uc11c \uc57d 750\u00b0F(\uc12d\uc528 \uc57d 388\ub3c4) \uc815\ub3c4\uc758 \uc628\ub3c4\uc5d0\uc11c \uc27d\uac8c \ubcf4\uc774\ub294 \ud76c\ubbf8\ud55c \ubd89\uc740\uc0c9 \ubc1c\uad11\uc740 \ubc1d\uc740 \ub300\ub0ae\uc5d0\ub294 \uc804\ud600 \ubcf4\uc774\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub300\ub0ae\uc5d0\ub294 1,000\u00b0F(\uc12d\uc528 \uc57d 538\ub3c4) \uc774\uc0c1\uc758 \uc628\ub3c4\uac00 \ub418\uc5b4\uc57c \ubc1c\uad11\uc744 \uac10\uc9c0\ud560 \uc218 \uc788\uc73c\uba70, \uc791\uc5c5\uc7a5 \uc870\uba85\uc744 \uc81c\uc5b4\ud558\uc9c0 \uc54a\ub294 \ub300\uc7a5\uc7a5\uc774\ub4e4\uc740 \uc628\ub3c4\ub97c \uc218\ubc31 \ub3c4\uc529 \uc798\ubabb \ud310\ub2e8\ud558\ub294 \uacbd\uc6b0\uac00 \ud754\ud569\ub2c8\ub2e4. \ub610\ud55c \uc2dc\uac01\uc801 \ucd94\uc815\uc740 \ubcf8\uc9c8\uc801\uc73c\ub85c \uc8fc\uad00\uc801\uc774\uba70 \uacbd\ud5d8, \ub098\uc774, \uc2dc\ub825\uc5d0 \ub530\ub77c \uc0ac\ub78c\ub9c8\ub2e4 \ub2e4\ub985\ub2c8\ub2e4. \uc219\ub828\ub41c \uc791\uc5c5\uc790\uc870\ucc28\ub3c4 \ub208\uc758 \ud53c\ub85c\ub098 \ubbf8\ubb18\ud55c \uc870\uba85 \ubcc0\ud654\uc5d0 \ub530\ub77c \ud310\ub2e8\ub825\uc774 \ud750\ub824\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac8c\ub2e4\uac00 \uc2dc\uac01\uc801 \ud310\ub2e8\uc740 \ud45c\uba74 \uc544\ub798\uc5d0 \uc228\uaca8\uc9c4 \uc190\uc0c1\uc744 \uac10\uc9c0\ud558\uc9c0 \ubabb\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc5f0\uc0ad \uacfc\uc815\uc5d0\uc11c \uacfc\ub3c4\ud55c \uc774\uc1a1 \uc18d\ub3c4\ub294 \ud15c\ud37c\ub9c1 \uc628\ub3c4\ub97c \ucd08\uacfc\ud558\ub294 \uad6d\ubd80\uc801\uc778 \ub9c8\ucc30\uc5f4\uc744 \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\uc73c\uba70, \uc774\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud45c\uba74\uc5d0 \ud478\ub978\uc0c9 \ud15c\ud37c\ub9c1 \uc0c9\uc0c1\uc73c\ub85c \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uac00\ubcbc\uc6b4 \ub9c8\ubb34\ub9ac \uac00\uacf5\uc73c\ub85c \ubcc0\uc0c9\ub41c \uce35\uc744 \uc81c\uac70\ud560 \uc218\ub294 \uc788\uc9c0\ub9cc, \uc2ec\uac01\ud55c \uacfc\ud15c\ud37c\ub9c1\uc774\ub098 \uad6d\ubd80\uc801\uc778 \uc7ac\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ud6c4 \uae09\uc18d \ub0c9\uac01\uc73c\ub85c \uc778\ud55c \ucde8\uc131 \ubbf8\ud15c\ud37c\ub9c1 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ud615\uc131 \ub4f1 \uadf8 \uc544\ub798\uc758 \uad6c\uc870\uc801 \uc190\uc0c1\uc740 \uc721\uc548\uc73c\ub85c \uc804\ud600 \ubcf4\uc774\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub610\ud55c \uc0c9\uc0c1\uc740 \uc720\uc9c0 \uc2dc\uac04\uc5d0 \ub300\ud55c \uc815\ubcf4\ub97c \uc81c\uacf5\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc6d0\ud558\ub294 \uae30\uacc4\uc801 \ud2b9\uc131\uc744 \uc5bb\uc73c\ub824\uba74 \ubbf8\uc138 \uad6c\uc870\uac00 \uc644\uc804\ud788 \ubcc0\ud615\ub420 \ub9cc\ud07c \ucda9\ubd84\ud788 \uc624\ub7ab\ub3d9\uc548 \uac15\ucca0\uc744 \ud574\ub2f9 \uc628\ub3c4\uc5d0\uc11c \uc720\uc9c0\ud574\uc57c \ud558\ub294\ub370, \ud2b9\ud788 \ud1a0\uce58\ub97c \uc774\uc6a9\ud55c \uc0c9\uc0c1 \uae30\ubc18 \uac00\uc5f4 \ubc29\uc2dd\uc740 \uc720\uc9c0 \uc2dc\uac04\uc744 \uc81c\uc5b4\ud560 \uc218 \uc5c6\uc73c\ubbc0\ub85c \ud45c\uba74\uc774 \uc801\uc808\ud55c \uc0c9\uc0c1\uc744 \ub098\ud0c0\ub0b4\ub354\ub77c\ub3c4 \ubd80\ud488\uc758 \uc911\uc2ec\ubd80\ub294 \uad6c\uc870\uc801\uc73c\ub85c \ubd88\uc644\uc804\ud558\uac8c \ucc98\ub9ac\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ubc14\ub85c \uc774\ub7ec\ud55c \uc774\uc720\ub85c \ud604\ub300\uc2dd \uc5f4\ucc98\ub9ac \uc2dc\uc124\uc5d0\uc11c\ub294 \uc0c9\uc0c1\uc5d0 \uae30\ubc18\ud55c \ud310\ub2e8\uc744 \ubcf4\uc815\ub41c \uc5f4\uc804\ub300, \uc628\ub3c4 \ud45c\uc2dc \ud06c\ub808\ud30c\uc2a4, \uc801\uc678\uc120 \uace0\uc628\uacc4\ub85c \ub300\uccb4\ud588\uc73c\uba70, \uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 \uc721\uc548 \uac80\uc0ac\uc5d0\ub9cc \uc758\uc874\ud558\ub294 \ub300\uc2e0 \ubaa8\ub4e0 \ucd9c\ud558 \uc81c\ud488\uc5d0 \ub300\ud574 \uacf5\uc7a5 \uc2dc\ud5d8 \uc131\uc801\uc11c\uc640 \ubb38\uc11c\ud654\ub41c \ud654\ud559 \ubc0f \uacbd\ub3c4 \ub370\uc774\ud130\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n\n
\uac15\ucca0\uc774 \ubd89\uac8c \ub2ec\uc544\uc624\ub974\ub294 \uc628\ub3c4\ub294 \uba87 \ub3c4\uc785\ub2c8\uae4c?<\/strong>

\uac15\ucca0\uc740 \uc5b4\ub450\uc6b4 \ubc29\uc5d0\uc11c \uc57d 400\u00b0C(750\u00b0F) \uc815\ub3c4\uc5d0\uc11c \ud76c\ubbf8\ud558\uace0 \ud0c1\ud55c \ubd89\uc740\uc0c9\uc744 \ub760\uae30 \uc2dc\uc791\ud558\uba70, \uc57d 593\u00b0C~700\u00b0C(1,100\u00b0F~1,292\u00b0F)\uc5d0 \uc774\ub974\uba74 \ub69c\ub837\ud55c \ud0c1\ud55c \ubd89\uc740\uc0c9\uc744 \ub760\uac8c \ub429\ub2c8\ub2e4. \uc644\uc804\ud788 \ubc1d\uc740 \ubd89\uc740\uc0c9 \ub610\ub294 \uccb4\ub9ac \ub808\ub4dc\uc0c9\uc740 704\u00b0C~800\u00b0C(1,300\u00b0F~1,472\u00b0F) \ubc94\uc704\uc5d0\uc11c \ub098\ud0c0\ub098\ub294\ub370, \uc774\ub294 \uc77c\ubc18 \ud0c4\uc18c \uacf5\uad6c\uac15\uc758 \uc784\uacc4 \uacbd\ud654 \uc628\ub3c4 \ubc94\uc704\uc640\ub3c4 \uc77c\uce58\ud569\ub2c8\ub2e4.<\/p> <\/div>

\uccb4\ub9ac \ub808\ub4dc \uc2a4\ud2f8\uc740 \uc5bc\ub9c8\ub098 \ub728\uac70\uc6b8\uae4c\uc694?<\/strong>

\uccb4\ub9ac \ub808\ub4dc \uc0c9\uc0c1\uc758 \uac15\ucca0\uc740 \ub300\ub7b5 704\u00b0C\uc5d0\uc11c 800\u00b0C(1,300\u00b0F~1,472\u00b0F)\uc758 \uc628\ub3c4\uc5d0\uc11c \uacbd\ud654\ub429\ub2c8\ub2e4. \uc774\ub294 \ub300\uc7a5\uc7a5\uc774\ub4e4\uc774 \uc77c\ubc18 \ud0c4\uc18c \uacf5\uad6c\uac15\uc774 \uacbd\ud654 \uc628\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\uc5ec \ub2f4\uae08\uc9c8\ud560 \uc900\ube44\uac00 \ub418\uc5c8\ub294\uc9c0 \ud310\ub2e8\ud558\ub294 \ub370 \uc0ac\uc6a9\ud558\ub294 \uace0\uc804\uc801\uc778 \uc2dc\uac01\uc801 \uae30\uc900\uc785\ub2c8\ub2e4.<\/p> <\/div>

\uac15\ucca0\uc774 \ubc31\uc5f4 \uc0c1\ud0dc\uac00 \ub418\ub294 \uc628\ub3c4\ub294 \uba87 \ub3c4\uc785\ub2c8\uae4c?<\/strong>

\uac15\ucca0\uc740 \uc57d 1,100\u00b0C\uc5d0\uc11c 1,400\u00b0C(2,012\u00b0F~2,552\u00b0F)\uc5d0\uc11c \ud770\uc0c9 \ub610\ub294 \ubc1d\uc740 \ud770\uc0c9\uc73c\ub85c \ubcc0\ud569\ub2c8\ub2e4. \uace0\uc18d\ub3c4\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc774 \ubc94\uc704, \uc989 2,250\u00b0F\uc5d0\uc11c 2,400\u00b0F \uc0ac\uc774\uc5d0\uc11c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ucc98\ub9ac\ub418\uc5b4 \ub2f4\uae08\uc9c8 \uc804\uc5d0 \ud569\uae08 \ud0c4\ud654\ubb3c\uc744 \uc644\uc804\ud788 \uc6a9\ud574\uc2dc\ud0b5\ub2c8\ub2e4.<\/p> <\/div>

\uac15\ucca0\uc774 \ube5b\uc744 \ub0b4\uae30 \uc2dc\uc791\ud558\ub294 \uc628\ub3c4\ub294 \uba87 \ub3c4\uc785\ub2c8\uae4c?<\/strong>

\uac15\ucca0\uc740 \uc57d 400\u00b0C(750\u00b0F) \uc815\ub3c4\uc758 \uc628\ub3c4\uc5d0\uc11c \ud76c\ubbf8\ud55c \ubc1c\uad11\uc744 \ubcf4\uc774\uae30 \uc2dc\uc791\ud558\uc9c0\ub9cc, \uc774\ub294 \uc8fc\ubcc0 \uc870\uba85\uc774 \uc5b4\ub450\uc6b4 \ud658\uacbd\uc5d0\uc11c\ub9cc \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \ud587\ube5b \uc544\ub798\ub098 \uc870\uba85\uc774 \ubc1d\uc740 \uc791\uc5c5\uc7a5\uc5d0\uc11c\ub294 \uac15\ucca0\uc774 538\u00b0C(1,000\u00b0F) \uc774\uc0c1\uc5d0 \ub3c4\ub2ec\ud574\uc57c \uc721\uc548\uc73c\ub85c \ubc1c\uad11\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p> <\/div>

\uac15\ucca0\uc740 \uac00\uc5f4\ud558\uba74 \uc65c \uc0c9\uc774 \ubcc0\ud560\uae4c\uc694?<\/strong>

\uac15\ucca0\uc740 \uc628\ub3c4\uc5d0 \ub530\ub77c \ub450 \uac00\uc9c0 \uc774\uc720\ub85c \uc0c9\uc774 \ubcc0\ud569\ub2c8\ub2e4. \uc57d 371\u00b0C(700\u00b0F) \uc774\uc0c1\uc5d0\uc11c\ub294 \ud751\uccb4 \ubcf5\uc0ac \ud6a8\uacfc\ub85c \uc778\ud574 \ubc31\uc5f4 \ud604\uc0c1\uc744 \uc77c\uc73c\ud0a4\uba70 \ube5b\uc744 \ubc1c\ud558\ub294\ub370, \uc774\ub294 \ub728\uac70\uc6b4 \ubb3c\uccb4\uac00 \uac00\uc2dc\uad11\uc120\uc744 \ubc29\ucd9c\ud558\ub294 \uac83\uacfc \uac19\uc740 \uc6d0\ub9ac\uc785\ub2c8\ub2e4. \uadf8 \uc774\ud558 \uc628\ub3c4\uc5d0\uc11c\ub294 \ud45c\uba74\uc5d0 \uc587\uc740 \uc0b0\ud654\ucca0 \ub9c9\uc774 \ud615\uc131\ub418\uc5b4 \ub450\uaebc\uc6cc\uc9c0\uba74\uc11c \uac04\uc12d \ubb34\ub2ac\ub97c \ub9cc\ub4e4\uc5b4\ub0b4\ub294\ub370, \uc774 \uc0c9\uae54\uc740 \uc605\uc740 \ub178\ub780\uc0c9, \ubcf4\ub77c\uc0c9, \ud30c\ub780\uc0c9 \ub4f1\uc744 \ub755\ub2c8\ub2e4.<\/p> <\/div>

\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ud0c4\uc18c\uac15\uacfc \uac19\uc740 \ubc29\uc2dd\uc73c\ub85c \uc0c9\uc774 \ubcc0\ud558\ub098\uc694?<\/strong>

\uc544\ub2c8\uc694. \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \ube44\ub86f\ud55c \uace0\ud569\uae08\uac15\uc740 \uc77c\ubc18 \ud0c4\uc18c\uac15\ubcf4\ub2e4 \uc0b0\ud654\uc5d0 \ub300\ud55c \uc800\ud56d\uc131\uc774 \ud6e8\uc52c \ub6f0\uc5b4\ub098\ubbc0\ub85c, \ub3d9\uc77c \uc628\ub3c4\uc5d0\uc11c \ud6e8\uc52c \uc587\uc740 \uc0b0\ud654\ub9c9\uc744 \ud615\uc131\ud569\ub2c8\ub2e4. \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ubd80\ud488\uc740 \ud0c4\uc18c\uac15 \uc0c9\uc0c1\ud45c\uc5d0\uc11c \uc81c\uc2dc\ud558\ub294 \uc628\ub3c4\ubcf4\ub2e4 \ud6e8\uc52c \ub192\uc740 \uc628\ub3c4\uc5d0\uc11c \ub3d9\uc77c\ud55c \uc0c9\uc0c1\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc73c\ubbc0\ub85c, \ud0c4\uc18c\uac15 \uc0c9\uc0c1\ud45c\ub97c \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774\ub098 \uace0\ud569\uae08\uac15\uc5d0 \uc9c1\uc811 \uc801\uc6a9\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p> <\/div>

\uac15\ud654\uac15\uc5d0 \ub098\ud0c0\ub098\ub294 \uc0b0\ud654\uc0c9\uc740 \uc2e4\uc81c\ub85c \ubb34\uc5c7\uc744 \uc758\ubbf8\ud558\ub294\uac00?<\/strong>

\ub2f4\uae08\uc9c8 \ucc98\ub9ac\ub41c \uac15\ucca0\uc758 \uc0b0\ud654\ub9c9 \uc0c9\uc0c1(\uc9da\uc0c9, \uae08\uc0c9, \ubcf4\ub77c\uc0c9, \ud30c\ub780\uc0c9)\uc740 \ubbf8\uc138\ud55c \uc0b0\ud654\ucca0 \ub9c9\uc758 \ub450\uaed8\ub97c \ub098\ud0c0\ub0b4\uba70, \uc774\ub294 \ub2f4\uae08\uc9c8 \uc628\ub3c4\uc640 \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc9da\uc0c9\uc740 \uc587\uc740 \ub9c9\uacfc \ub192\uc740 \uc794\ub958 \uacbd\ub3c4(60~64 HRC)\ub97c \ub098\ud0c0\ub0b4\uace0, \ud30c\ub780\uc0c9\uc740 \ub450\uaebc\uc6b4 \ub9c9, \ub0ae\uc740 \uacbd\ub3c4, \uadf8\ub9ac\uace0 \ucd5c\ub300 \uc778\uc131\uc744 \ub098\ud0c0\ub0b4\uba70, \uc774\ub294 \uc2a4\ud504\ub9c1 \ub2f4\uae08\uc9c8\uc5d0\uc11c \ud754\ud788 \ubcfc \uc218 \uc788\ub294 \ud2b9\uc9d5\uc785\ub2c8\ub2e4.<\/p> <\/div>

\uc5f4\ucc98\ub9ac \uc0c9\uc0c1\ud45c\uc640 \uc5f4\ucc98\ub9ac \uc628\ub3c4\ud45c\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/strong>

\uc5f4\ucc98\ub9ac \uc0c9\uc0c1\ud45c\ub294 \ub208\uc5d0 \ubcf4\uc774\ub294 \ubc1c\uad11 \ub610\ub294 \uc0b0\ud654\ubb3c \uc0c9\uc0c1\uc744 \ub300\ub7b5\uc801\uc778 \uc628\ub3c4\uc5d0 \ub300\uc751\uc2dc\ucf1c \ub2e8\uc870 \ub610\ub294 \ud15c\ud37c\ub9c1 \uacfc\uc815\uc5d0\uc11c \uc721\uc548\uc73c\ub85c \uc628\ub3c4\ub97c \ud310\ub2e8\ud558\ub294 \ub370 \uc720\uc6a9\ud569\ub2c8\ub2e4. \ubc18\uba74 \uc5f4\ucc98\ub9ac \uc628\ub3c4\ud45c\ub294 \ud2b9\uc815 \uac15\uc885\uc5d0 \ub300\ud55c \uad6c\uccb4\uc801\uc778 \uacf5\uc815 \ub9e4\uac1c\ubcc0\uc218(\uc624\uc2a4\ud14c\ub098\uc774\uc9d5 \uc628\ub3c4, \ub2f4\uae08\uc9c8 \ubc29\ubc95, \ud15c\ud37c\ub9c1 \ubc94\uc704, \uac00\uacf5 \uacbd\ub3c4)\ub97c \ub098\uc5f4\ud569\ub2c8\ub2e4. <\/p> <\/div>

\uac15\ucca0\uc5d0 \uccad\uc0c9 \ucde8\uc131\uc774 \ubc1c\uc0dd\ud558\ub294 \uc628\ub3c4 \ubc94\uc704\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong>

\ud0c4\uc18c\uac15 \ubc0f \uc77c\ubd80 \ud569\uae08\uac15\uc744 230\u00b0C~370\u00b0C(450\u00b0F~700\u00b0F) \ubc94\uc704\uc5d0\uc11c \uc720\uc9c0\ud560 \ub54c \uccad\uc0c9 \ucde8\uc131\uc774 \ubc1c\uc0dd\ud558\ub294\ub370, \uc774\ub294 \uccad\uc0c9 \ud15c\ud37c\ub9c1 \uc0c9\uc0c1\uc774 \ub098\ud0c0\ub098\ub294 \uc628\ub3c4 \ubc94\uc704\uc640 \ub3d9\uc77c\ud569\ub2c8\ub2e4. \uace0\uac15\ub3c4 \uad6c\uc870 \ubd80\ud488 \ubc0f \uc911\uc694 \uacf5\uad6c\ub294 \uc774 \ubc94\uc704\ubcf4\ub2e4 \ud6e8\uc52c \ub0ae\uac70\ub098 \ud6e8\uc52c \ub192\uc740 \uc628\ub3c4\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud574\uc57c \ud558\uba70, \uc808\ub300\ub85c \uc774 \ubc94\uc704 \ub0b4\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p> <\/div>

\uac15\ucca0\uc774 \ud587\ube5b \uc544\ub798\uc5d0\uc11c \ubd89\uac8c \ube5b\ub098\ub824\uba74 \uc5bc\ub9c8\ub098 \ub728\uac70\uc6cc\uc57c \ud560\uae4c\uc694?<\/strong>

\uc77c\ubc18\uc801\uc778 \ud587\ube5b \uc544\ub798\uc5d0\uc11c \uac15\ucca0\uc740 \ubd89\uc740\uc0c9 \ubc1c\uad11\uc774 \ub098\ud0c0\ub098\uae30 \uc2dc\uc791\ud558\ub824\uba74 \uc57d 538\u00b0C\uc5d0\uc11c 593\u00b0C(1,000\u00b0F~1,100\u00b0F)\uc5d0 \ub3c4\ub2ec\ud574\uc57c \ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc5b4\ub450\uc6b4 \ubc29\uc5d0\uc11c\ub294 \uac19\uc740 \uac15\ucca0\uc774\ub77c\ub3c4 \ud6e8\uc52c \ub0ae\uc740 \uc628\ub3c4\uc778 \uc57d 750\u00b0F(\uc57d 380\u00b0C)\uc5d0\uc11c \ud76c\ubbf8\ud55c \ubd89\uc740\uc0c9 \ubc1c\uad11\uc744 \ubcf4\uc785\ub2c8\ub2e4.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"

Steel Heat Treatment Color Chart Steel changes color in a predictable sequence as it heats \u2014 from dark red around 1,250\u00b0F (677\u00b0C) up to white hot near 2,500\u00b0F (1,371\u00b0C), and through a separate range of thin-film oxide colors (straw, purple, blue) between 380\u00b0F and 700\u00b0F (193\u2013371\u00b0C) during tempering. The color you see depends on which […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-16744","page","type-page","status-publish","hentry"],"yoast_head":"\nSteel Heat Color Chart: Temperature by Glow Color (\u00b0F\/\u00b0C) - AoboSteel<\/title>\n<meta name=\"description\" content=\"See what temperature steel is by its glow or oxide color \u2014 from 1,250\u00b0F dark red to 2,500\u00b0F white-hot, plus temper colors from 380\u00b0F to 700\u00b0F.\" \/>\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\/steel-heat-color-chart\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Steel Heat Color Chart: Temperature by Glow Color (\u00b0F\/\u00b0C)\" \/>\n<meta property=\"og:description\" content=\"See what temperature steel is by its glow or oxide color \u2014 from 1,250\u00b0F dark red to 2,500\u00b0F white-hot, plus temper colors from 380\u00b0F to 700\u00b0F.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/steel-heat-color-chart\/\" \/>\n<meta property=\"og:site_name\" content=\"AoboSteel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-27T08:00:32+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data1\" content=\"12\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"Steel Heat Color Chart: Temperature by Glow Color (\u00b0F\\\/\u00b0C)\",\"datePublished\":\"2026-07-19T04:16:37+00:00\",\"dateModified\":\"2026-08-27T08:00:32+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/\"},\"wordCount\":2646,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"inLanguage\":\"ko-KR\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/\",\"name\":\"Steel Heat Color Chart: Temperature by Glow Color (\u00b0F\\\/\u00b0C) - 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Full bright or cherry red appears in the 1,300\u00b0F to 1,472\u00b0F (704\u00b0C to 800\u00b0C) range, which is also the critical hardening range for plain carbon tool steels.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817384260\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817384260\",\"name\":\"How hot is cherry red steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cherry red steel is roughly 1,300\u00b0F to 1,472\u00b0F (704\u00b0C to 800\u00b0C). This is the classic visual cue blacksmiths use to judge that plain carbon tool steel has reached its hardening temperature and is ready to quench.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817393339\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817393339\",\"name\":\"What temperature does steel turn white hot?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Steel turns white or brilliant white at roughly 2,012\u00b0F to 2,552\u00b0F (1,100\u00b0C to 1,400\u00b0C). High-speed steels are typically austenitized in this range, usually between 2,250\u00b0F and 2,400\u00b0F, to fully dissolve their alloy carbides before quenching.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817394128\",\"position\":4,\"url\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817394128\",\"name\":\"At what temperature does steel start to glow?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Steel starts to show the first faint incandescent glow around 750\u00b0F (400\u00b0C), but only in low ambient light. In normal daylight or a well-lit shop, steel needs to reach above 1,000\u00b0F (538\u00b0C) before any glow becomes visible to the eye.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817412616\",\"position\":5,\"url\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817412616\",\"name\":\"Why does steel change color when heated?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Steel changes color for two different reasons depending on temperature. Above roughly 700\u00b0F (371\u00b0C) it glows from incandescence, the same blackbody radiation effect that makes any hot object emit visible light. Below that, the color comes from a thin iron oxide film that forms on the surface and produces interference colors \u2014 straw, purple, and blue \u2014 as it thickens.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817413576\",\"position\":6,\"url\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817413576\",\"name\":\"Does stainless steel change color the same way as carbon steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Stainless and other highly alloyed steels resist oxidation far more than plain carbon steel, so they form a much thinner oxide film at a given temperature. A stainless part can reach a noticeably higher actual temperature than a carbon-steel color chart would suggest before showing the same color, so don't apply carbon-steel charts directly to stainless or high-alloy grades.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817434617\",\"position\":7,\"url\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817434617\",\"name\":\"What do the oxide colors on tempered steel actually indicate?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The oxide colors on tempered steel \u2014 straw, gold, purple, and blue \u2014 indicate the thickness of a microscopic iron oxide film, which in turn correlates with tempering temperature. Straw indicates a thin film and high retained hardness (60\u201364 HRC); blue indicates a thick film, lower hardness, and maximum toughness, typical of a spring temper.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817444582\",\"position\":8,\"url\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817444582\",\"name\":\"What is the difference between a heat color chart and a heat treatment temperature chart?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A heat color chart maps visible glow or oxide colors to approximate temperatures, useful for judging temperature by eye during forging or tempering. A heat treatment temperature chart instead lists the specific process parameters \u2014 austenitizing temperature, quench method, tempering range, working hardness \u2014 for a given steel grade. \",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817445836\",\"position\":9,\"url\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817445836\",\"name\":\"What temperature range causes blue brittleness in steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Blue brittleness typically occurs when carbon and some alloy steels are held in the 450\u00b0F to 700\u00b0F (230\u00b0C to 370\u00b0C) range, the same range associated with blue temper colors. High-strength structural parts and critical tools should be tempered well below or well above this range, never within it.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817469539\",\"position\":10,\"url\":\"https:\\\/\\\/aobosteel.com\\\/steel-heat-color-chart\\\/#faq-question-1787817469539\",\"name\":\"How hot does steel need to be to glow red in daylight?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In normal daylight, steel needs to reach roughly 1,000\u00b0F to 1,100\u00b0F (538\u00b0C to 593\u00b0C) before a red glow becomes visible. 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Full bright or cherry red appears in the 1,300\u00b0F to 1,472\u00b0F (704\u00b0C to 800\u00b0C) range, which is also the critical hardening range for plain carbon tool steels.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817384260","position":2,"url":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817384260","name":"\uccb4\ub9ac \ub808\ub4dc \uc2a4\ud2f8\uc740 \uc5bc\ub9c8\ub098 \ub728\uac70\uc6b8\uae4c\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Cherry red steel is roughly 1,300\u00b0F to 1,472\u00b0F (704\u00b0C to 800\u00b0C). This is the classic visual cue blacksmiths use to judge that plain carbon tool steel has reached its hardening temperature and is ready to quench.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817393339","position":3,"url":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817393339","name":"\uac15\ucca0\uc774 \ubc31\uc5f4 \uc0c1\ud0dc\uac00 \ub418\ub294 \uc628\ub3c4\ub294 \uba87 \ub3c4\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Steel turns white or brilliant white at roughly 2,012\u00b0F to 2,552\u00b0F (1,100\u00b0C to 1,400\u00b0C). High-speed steels are typically austenitized in this range, usually between 2,250\u00b0F and 2,400\u00b0F, to fully dissolve their alloy carbides before quenching.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817394128","position":4,"url":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817394128","name":"\uac15\ucca0\uc774 \ube5b\uc744 \ub0b4\uae30 \uc2dc\uc791\ud558\ub294 \uc628\ub3c4\ub294 \uba87 \ub3c4\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Steel starts to show the first faint incandescent glow around 750\u00b0F (400\u00b0C), but only in low ambient light. In normal daylight or a well-lit shop, steel needs to reach above 1,000\u00b0F (538\u00b0C) before any glow becomes visible to the eye.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817412616","position":5,"url":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817412616","name":"\uac15\ucca0\uc740 \uac00\uc5f4\ud558\uba74 \uc65c \uc0c9\uc774 \ubcc0\ud560\uae4c\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Steel changes color for two different reasons depending on temperature. Above roughly 700\u00b0F (371\u00b0C) it glows from incandescence, the same blackbody radiation effect that makes any hot object emit visible light. Below that, the color comes from a thin iron oxide film that forms on the surface and produces interference colors \u2014 straw, purple, and blue \u2014 as it thickens.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817413576","position":6,"url":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817413576","name":"\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ud0c4\uc18c\uac15\uacfc \uac19\uc740 \ubc29\uc2dd\uc73c\ub85c \uc0c9\uc774 \ubcc0\ud558\ub098\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. Stainless and other highly alloyed steels resist oxidation far more than plain carbon steel, so they form a much thinner oxide film at a given temperature. A stainless part can reach a noticeably higher actual temperature than a carbon-steel color chart would suggest before showing the same color, so don't apply carbon-steel charts directly to stainless or high-alloy grades.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817434617","position":7,"url":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817434617","name":"\uac15\ud654\uac15\uc5d0 \ub098\ud0c0\ub098\ub294 \uc0b0\ud654\uc0c9\uc740 \uc2e4\uc81c\ub85c \ubb34\uc5c7\uc744 \uc758\ubbf8\ud558\ub294\uac00?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The oxide colors on tempered steel \u2014 straw, gold, purple, and blue \u2014 indicate the thickness of a microscopic iron oxide film, which in turn correlates with tempering temperature. Straw indicates a thin film and high retained hardness (60\u201364 HRC); blue indicates a thick film, lower hardness, and maximum toughness, typical of a spring temper.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817444582","position":8,"url":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817444582","name":"\uc5f4\ucc98\ub9ac \uc0c9\uc0c1\ud45c\uc640 \uc5f4\ucc98\ub9ac \uc628\ub3c4\ud45c\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc778\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A heat color chart maps visible glow or oxide colors to approximate temperatures, useful for judging temperature by eye during forging or tempering. A heat treatment temperature chart instead lists the specific process parameters \u2014 austenitizing temperature, quench method, tempering range, working hardness \u2014 for a given steel grade. ","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817445836","position":9,"url":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817445836","name":"\uac15\ucca0\uc5d0 \uccad\uc0c9 \ucde8\uc131\uc774 \ubc1c\uc0dd\ud558\ub294 \uc628\ub3c4 \ubc94\uc704\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Blue brittleness typically occurs when carbon and some alloy steels are held in the 450\u00b0F to 700\u00b0F (230\u00b0C to 370\u00b0C) range, the same range associated with blue temper colors. High-strength structural parts and critical tools should be tempered well below or well above this range, never within it.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817469539","position":10,"url":"https:\/\/aobosteel.com\/steel-heat-color-chart\/#faq-question-1787817469539","name":"\uac15\ucca0\uc774 \ud587\ube5b \uc544\ub798\uc5d0\uc11c \ubd89\uac8c \ube5b\ub098\ub824\uba74 \uc5bc\ub9c8\ub098 \ub728\uac70\uc6cc\uc57c \ud560\uae4c\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"In normal daylight, steel needs to reach roughly 1,000\u00b0F to 1,100\u00b0F (538\u00b0C to 593\u00b0C) before a red glow becomes visible. The same steel would show a visible dull red glow at a much lower temperature, around 750\u00b0F, in a darkened room.","inLanguage":"ko-KR"},"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":"Steel Heat Treatment Color Chart Steel changes color in a predictable sequence as it heats \u2014 from dark red around 1,250\u00b0F (677\u00b0C) up to white hot near 2,500\u00b0F (1,371\u00b0C), and through a separate range of thin-film oxide colors (straw, purple, blue) between 380\u00b0F and 700\u00b0F (193\u2013371\u00b0C) during tempering. The color you see depends on which…","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":"Steel Heat Treatment Color Chart Steel changes color in a predictable sequence as it heats \u2014 from dark red around 1,250\u00b0F (677\u00b0C) up to white hot near 2,500\u00b0F (1,371\u00b0C), and through a separate range of thin-film oxide colors (straw, purple, blue) between 380\u00b0F and 700\u00b0F (193\u2013371\u00b0C) during tempering. The color you see depends on which…","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/16744","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=16744"}],"version-history":[{"count":5,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/16744\/revisions"}],"predecessor-version":[{"id":17966,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/16744\/revisions\/17966"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=16744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}