{"id":14774,"date":"2026-04-22T15:17:28","date_gmt":"2026-04-22T07:17:28","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=14774"},"modified":"2026-11-09T14:23:46","modified_gmt":"2026-11-09T06:23:46","slug":"440c-stainless-steel-hardened-hardness","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/440c-stainless-steel-hardened-hardness\/","title":{"rendered":"440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uacbd\ud654 \uacbd\ub3c4(57~60 HRC) \uc124\uba85"},"content":{"rendered":"<h1 class=\"wp-block-heading\" id=\"h-440c-stainless-steel-hardened-hardness\">440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uacbd\ud654 \uacbd\ub3c4<\/h1>\n<p class=\"wp-block-paragraph\">440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc801\uc808\ud55c \uc5f4\ucc98\ub9ac \uc870\uac74\uc5d0\uc11c \ucd5c\ub300 60 HRC\uc758 \uacbd\ud654 \uacbd\ub3c4\ub97c \ub2ec\uc131\ud569\ub2c8\ub2e4. \uc774\ub294 \ub0b4\ub9c8\ubaa8\uc131 \uc6a9\ub3c4\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uc911 \uacbd\ub3c4\uac00 \uac00\uc7a5 \ub192\uc740 \ucd95\uc5d0 \uc18d\ud569\ub2c8\ub2e4.<\/p>\n<h2 class=\"wp-block-heading\">440C \uac15\ucca0\uc758 \uc77c\ubc18\uc801\uc778 \uacbd\ud654 \uacbd\ub3c4 \ubc94\uc704<\/h2>\n<p class=\"wp-block-paragraph\">\uc2e4\uc81c \uc0ac\uc6a9 \ud658\uacbd\uc5d0\uc11c 440C\uc758 \uacbd\ub3c4 \ubc94\uc704\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 57HRC\uc5d0\uc11c 60HRC \uc0ac\uc774\uc785\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\uc774 \ubc94\uc704\ub294 \uacbd\ub3c4\uac00 \uc99d\uac00\ud558\uba74 \ucde8\uc131\uc774 \ucee4\uc9c0\uace0 \uade0\uc5f4 \uc704\ud5d8\uc774 \ub192\uc544\uc9c0\ub294 \ubc18\uba74, \uacbd\ub3c4\uac00 \uac10\uc18c\ud558\uba74 \uc778\uc131\uc740 \ud5a5\uc0c1\ub418\uc9c0\ub9cc \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub5a8\uc5b4\uc9c0\uae30 \ub54c\ubb38\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub530\ub77c\uc11c \ucd5c\uc885 \uac12\uc740 \ub0b4\uad6c\uc131\uacfc \uc2e0\ub8b0\uc131 \uc0ac\uc774\uc758 \ud544\uc694\ud55c \uade0\ud615\uc744 \uae30\uc900\uc73c\ub85c \uc120\ud0dd\ub429\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\ud15c\ud37c\ub9c1 \uc628\ub3c4\ub294 \uc8fc\uc694 \uc81c\uc5b4 \ubcc0\uc218\uc785\ub2c8\ub2e4. \ud15c\ud37c\ub9c1 \uc628\ub3c4\uac00 \ub0ae\uc744\uc218\ub85d \uacbd\ub3c4\uac00 \ub192\uac8c \uc720\uc9c0\ub418\ub294 \ubc18\uba74, \ud15c\ud37c\ub9c1 \uc628\ub3c4\uac00 \ub192\uc744\uc218\ub85d \uacbd\ub3c4\ub294 \ub0ae\uc544\uc9c0\uc9c0\ub9cc \uad6c\uc870\uc801 \uc548\uc815\uc131\uacfc \ud30c\uad34 \uc800\ud56d\uc131\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/p>\n<h2 class=\"wp-block-heading\">440C \uac15\uc7ac\uc758 \ud15c\ud37c\ub9c1 \ud6c4 \uacbd\ub3c4<\/h2>\n<p class=\"wp-block-paragraph\">\uacf5\uac1c\ub41c \uc2e4\ubb34 \uac12\uc740 \uba85\uc2dc\ub41c \ud15c\ud37c\ub9c1 \uc628\ub3c4\uc5d0 \ub300\ud55c \ucd5c\uc18c \uacbd\ub3c4\ub97c \uc81c\uc2dc\ud569\ub2c8\ub2e4. \uc67c\ucabd \uc5f4\uc758 \uc628\ub3c4\uc5d0\uc11c \ud15c\ud37c\ub9c1\ub41c \ubd80\ud488\uc740 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ubc0f \ub2f4\uae08\uc9c8 \ub2e8\uacc4\uac00 \uc62c\ubc14\ub974\uac8c \uc218\ud589\ub418\uc5c8\ub2e4\uba74 \uac00\uc6b4\ub370 \uc5f4\uc758 \uacbd\ub3c4 \ubbf8\ub9cc\uc73c\ub85c \uc2dc\ud5d8\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc608\uc5f4\ubd80\ud130 \uc11c\ube0c\uc81c\ub85c \ucc98\ub9ac\uae4c\uc9c0\uc758 \ud15c\ud37c\ub9c1 \uc708\ub3c4\uc6b0 \uc790\uccb4\ub294 \ub2e4\uc74c \ud398\uc774\uc9c0\uc5d0 \uc81c\uc2dc\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4: <a href=\"https:\/\/aobosteel.com\/ko\/440c-stainless-steel-heat-treatment\/\">440C \uc5f4\ucc98\ub9ac \ud398\uc774\uc9c0<\/a>.<\/p>\n<figure class=\"wp-block-table is-style-stripes\">\n<table class=\"has-fixed-layout\">\n<thead>\n<tr>\n<th class=\"has-text-align-left\" data-align=\"left\">\ud15c\ud37c\ub9c1 \uc628\ub3c4<\/th>\n<th class=\"has-text-align-left\" data-align=\"left\">\ucd5c\uc18c \uacbd\ub3c4<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">165 \u00b0C (330 \u00b0F)<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">60 HRC<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">190 \u00b0C (375 \u00b0F)<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">58 HRC<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">230 \u00b0C (445 \u00b0F)<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">57 HRC<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">357 \u00b0C (675 \u00b0F)<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">52~56 HRC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"wp-block-paragraph\"><em>\ucd9c\ucc98, 440C \uac15\uc885\uc758 \uad8c\uc7a5 \uc5f4\ucc98\ub9ac \uc2e4\ubb34, Heat Treater's Guide, Practices and Procedures for Irons and Steels.<\/em><\/p>\n<\/figure>\n<p class=\"wp-block-paragraph\">\uc2e4\ubb34\uc5d0\uc11c\ub294 \ucc98\uc74c \uc138 \ud589\uc774 \ub300\ubd80\ubd84\uc758 \ub9c8\ubaa8 \uc791\uc5c5\uc744 \ucee4\ubc84\ud569\ub2c8\ub2e4. 60 HRC\uc758 \ubd80\ud488\uc740 \uc21c\uc218 \ub9c8\ubaa8\uc5d0 \uc801\ud569\ud558\uace0, 57 HRC\ub294 \uacbd\ubbf8\ud55c \ucda9\uaca9 \ud558\uc911\uc774 \uc874\uc7ac\ud560 \ub54c \ud1b5\uc0c1\uc801\uc778 \uc808\ucda9\uac12\uc785\ub2c8\ub2e4. \ub9c8\uc9c0\ub9c9 \ud589\uc740 \ub0b4\ub9c8\ubaa8\uc131\uc744 \ub0b4\ucda9\uaca9\uc131\uacfc \ub9de\ubc14\uafb8\ub294 \uac83\uc73c\ub85c, \ub9c8\ubaa8\uac00 \uc544\ub2cc \uade0\uc5f4\uc774 \uc124\uacc4\uac00 \ubc29\uc9c0\ud574\uc57c \ud560 \ud30c\uc190 \ubaa8\ub4dc\uc77c \ub54c \uc120\ud0dd\ub429\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\uc774 \uac15\uc885\uc5d0\ub294 2\ud68c \ud15c\ud37c\ub9c1\uc774 \ud45c\uc900\uc774\uba70 \uacbd\ub3c4 \uc77c\uad00\uc131\uacfc \uce58\uc218 \uc548\uc815\uc131\uc744 \ubaa8\ub450 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4. \ub450 \ud15c\ud37c\ub9c1 \uc0ac\uc774\uc5d0 \ubd80\ud488\uc744 \uc2e4\uc628\uc73c\ub85c \ub0c9\uac01\ud558\ub294\ub370, \uc774\ub294 \uccab \ubc88\uc9f8 \ud15c\ud37c\ub9c1 \ud6c4 \uc794\ub958\ud558\ub294 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uac00 \ub0c9\uac01 \uc911\uc5d0 \ubcc0\ud0dc\ud558\uae30 \ub54c\ubb38\uc774\uba70, \ub450 \ubc88\uc9f8 \ud15c\ud37c\ub9c1\uc740 \ucde8\uc131\uc744 \ub0a8\uae30\ub294 \ub300\uc2e0 \uadf8 \ub0c9\uac01 \uc911\uc5d0 \ud615\uc131\ub41c \uc0c8\ub85c\uc6b4 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub97c \ud15c\ud37c\ub9c1\ud569\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\ub300\ub7b5 400 \u00b0C \uc774\uc0c1\uc5d0\uc11c\ub294 \uacbd\ub3c4 \uace1\uc120\uc774 \ub354 \uc774\uc0c1 \ud558\uac15\ud558\uc9c0 \uc54a\uace0 \ub2e4\uc2dc \uc0c1\uc2b9\ud569\ub2c8\ub2e4. \uc774 \uac15\uc885\uc758 \uacf5\uac1c\ub41c \ud15c\ud37c\ub9c1 \uace1\uc120\uc740 \uc57d 470~480 \u00b0C\uc5d0\uc11c \uc57d 600 HB, \uc989 \uc57d 58 HRC\uc5d0 \uac00\uae4c\uc6b4 2\ucc28 \uacbd\ud654 \ud53c\ud06c\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc774 \ud53c\ud06c\ub294 \uc624\ud574\ub97c \ubd88\ub7ec\uc77c\uc73c\ud0a4\ub294\ub370, \uadf8 \uad6c\uac04\uc5d0 \uc788\ub294 \ubd80\ud488\uc740 \uc5ec\uc804\ud788 \ub2e8\ub2e8\ud558\uc9c0\ub9cc \uc778\uc131\uc774 \ucd5c\uc545\uc758 \uc0c1\ud0dc\uc774\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ud53c\ud06c\ub97c \uc9c0\ub098\uba74 \ud558\uac15\uc774 \uae09\uaca9\ud569\ub2c8\ub2e4.<\/p>\n<figure class=\"wp-block-table is-style-stripes\">\n<table class=\"has-fixed-layout\">\n<thead>\n<tr>\n<th class=\"has-text-align-left\" data-align=\"left\">\ud15c\ud37c\ub9c1 \uc628\ub3c4<\/th>\n<th class=\"has-text-align-left\" data-align=\"left\">\uacbd\ub3c4, HB<\/th>\n<th class=\"has-text-align-left\" data-align=\"left\">\ub300\ub7b5\uc801\uc778 HRC<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">260 \u00b0C (500 \u00b0F)<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">550<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">54<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">400 \u00b0C (750 \u00b0F)<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">575<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">56<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">480 \u00b0C (895 \u00b0F), \ud53c\ud06c<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">600<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">58<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">540 \u00b0C (1005 \u00b0F)<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">515<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">52<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">600 \u00b0C (1110 \u00b0F)<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">375<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">40<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">650 \u00b0C (1200 \u00b0F)<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">320<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">34<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"wp-block-paragraph\"><em>\ucd9c\ucc98, 440C \uac15\uc885\uc758 \ud15c\ud37c\ub9c1 \uc628\ub3c4\uc5d0 \ub530\ub978 \uacbd\ub3c4 \uace1\uc120, Heat Treater's Guide, Practices and Procedures for Irons and Steels. \uacbd\ub3c4\ub294 \uac8c\uc7ac\ub41c \uadf8\ub300\ub85c HB\ub85c \ud45c\uae30\ud588\uace0 HRC \uc5f4\uc740 ASTM E140\uc73c\ub85c \ud658\uc0b0\ud55c \uac12\uc785\ub2c8\ub2e4.<\/em><\/p>\n<\/figure>\n<p class=\"wp-block-paragraph\">\uc774 \uac15\uc885\uc5d0\uc11c\ub294 \uc778\uc131\uacfc \uacbd\ub3c4\uac00 \uc11c\ub85c \uc0c1\ucda9\ud558\uba70, 427~566 \u00b0C \uad6c\uac04\uc740 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774 \ud15c\ud37c \ucde8\uc131\uc5d0 \uac00\uc7a5 \ucde8\uc57d\ud55c \uad6c\uac04\uc785\ub2c8\ub2e4. \uadf8 \uad6c\uac04\uc5d0\uc11c \ud15c\ud37c\ub9c1\ub41c \ubd80\ud488\uc740 \ub2e8\ub2e8\ud558\uc9c0\ub9cc \uc0ac\uc6a9 \uc911 \uc2e0\ub8b0\uc131\uc774 \ub5a8\uc5b4\uc9c0\uba70, \uc774 \ub54c\ubb38\uc5d0 \ub9c8\ubaa8 \ubd80\ud488\uc740 250 \u00b0C \ubbf8\ub9cc\uc73c\ub85c \uc720\uc9c0\ub418\uace0 \uc778\uc131 \ud15c\ud37c\ub9c1\uc5d0 \ub530\ub974\ub294 \ub0ae\uc740 \uacbd\ub3c4\ub294 \ucda9\uaca9 \ud558\uc911\uc774 \uc694\uad6c\ud560 \ub54c\ub9cc \uc218\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<h2 class=\"wp-block-heading\">\uc0c1\ud0dc\ubcc4 440C \uac15\uc7ac \uacbd\ub3c4<\/h2>\n<p class=\"wp-block-paragraph\">\ub3d9\uc77c\ud55c \uac15\uc885\uc774 \uc5b4\ub290 \uc0c1\ud0dc\uc5d0 \uc18d\ud558\ub294 \uc218\uce58\uc778\uc9c0\uc5d0 \ub530\ub77c 97 HRB, 260 HB, 57 HRC, 60 HRC\ub85c \ud45c\uae30\ub429\ub2c8\ub2e4. \uc544\ub798 \ud45c\ub294 \uacf5\uac1c\ub41c \ub2e8\uc704\ub97c \uadf8\ub300\ub85c \uc720\uc9c0\ud558\ub294\ub370, \uc778\uc99d\uc11c\uc5d0 \uc5b4\ub5a4 \uc218\uce58\uac00 \ud45c\uc2dc\ub418\ub294\uc9c0\ub294 \uac15\uc885\uc774 \uc544\ub2c8\ub77c \uacf5\uae09 \uc0c1\ud0dc\uac00 \uacb0\uc815\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<figure class=\"wp-block-table is-style-stripes\">\n<table class=\"has-fixed-layout\">\n<thead>\n<tr>\n<th class=\"has-text-align-left\" data-align=\"left\">\uc0c1\ud0dc<\/th>\n<th class=\"has-text-align-left\" data-align=\"left\">\uacbd\ub3c4<\/th>\n<th class=\"has-text-align-left\" data-align=\"left\">\ucc38\uace0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">\uc644\uc804 \uc5b4\ub2d0\ub9c1<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">98 HRB ~ 25 HRC<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">\uac00\uc7a5 \uc5f0\ud55c \uc0c1\ud0dc, \uae30\uacc4 \uac00\uacf5\uc6a9<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">\uc5b4\ub2d0\ub9c1 \ubc0f \ub0c9\uac04 \uc778\ubc1c \ubd09\uc7ac<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">260 HB<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">\ud56d\ubcf5\uac15\ub3c4\uac00 \ub354 \ub192\uace0 \uc131\ud615\uc131\uc774 \ub0ae\uc74c<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">1010~1065 \u00b0C\uc5d0\uc11c \ub2f4\uae08\uc9c8\ud55c \uc0c1\ud0dc<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">60~62 HRC<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">\ud15c\ud37c\ub9c1\ud558\uc9c0 \uc54a\uc74c, \ub192\uc740 \ub0b4\ubd80 \uc751\ub825<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">315 \u00b0C\uc5d0\uc11c \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">580 HB, \uc57d 57 HRC<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">\uc778\uc7a5\uac15\ub3c4 1970 MPa, \uc5f0\uc2e0\uc728 2\ud37c\uc13c\ud2b8<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">165 \u00b0C \uc774\uc0c1\uc5d0\uc11c \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">\ucd5c\uc18c 60 HRC<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">\uc0ac\uc6a9 \uc911 \uc801\uc6a9\ub418\ub294 \ucd5c\uace0 \uc218\uc900<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"wp-block-paragraph\"><em>\ucd9c\ucc98, 440C \uac15\uc885\uc758 \ubb3c\uc131 \ub370\uc774\ud130, ASM Handbook, Volume 1, Properties and Selection, Irons, Steels and High-Performance Alloys \ubc0f Heat Treater's Guide, Practices and Procedures for Irons and Steels.<\/em><\/p>\n<\/figure>\n<p class=\"wp-block-paragraph\">\uc5b4\ub2d0\ub9c1 \uc218\uce58\ub294 \uc81c\ucca0\uc18c \uc778\uc99d\uc11c\uc5d0 \uae30\uc7ac\ub418\ub294 \uac12\uc778\ub370, 440C\ub294 \uae30\uacc4 \uac00\uacf5\uc744 \uc704\ud574 \uc5f0\ud55c \uc0c1\ud0dc\ub85c \uacf5\uae09\ub418\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ub0c9\uac04 \uc778\ubc1c \ubd09\uc7ac\ub294 \uc5b4\ub2d0\ub9c1 \ubd09\uc7ac\ubcf4\ub2e4 \ub354 \ub2e8\ub2e8\ud558\uace0 \uac15\ud558\uac8c \uc2dc\ud5d8\ub418\ubbc0\ub85c, \ub450 \uc778\uc99d\uc11c\ub97c \ube44\uad50\ud558\ub294 \uad6c\ub9e4\uc790\ub294 \ub450 \uac00\uc9c0 \uac15\uc885\uc774 \uc544\ub2c8\ub77c \ub450 \uac00\uc9c0 \uc81c\uc870 \uacbd\ub85c\ub97c \ubcf4\uace0 \uc788\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h2 class=\"wp-block-heading\">440C \uac15\ucca0\uc758 \ub2f4\uae08\uc9c8 \ud6c4 \uacbd\ub3c4\uc640 \ud15c\ud37c\ub9c1 \ud6c4 \uacbd\ub3c4 \ube44\uad50<\/h2>\n<p class=\"wp-block-paragraph\">440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uacbd\ub3c4\ub294 \ub2f4\uae08\uc9c8 \uc9c1\ud6c4\uc640 \ud15c\ud37c\ub9c1 \ucc98\ub9ac \ud6c4 \uc0c1\ud0dc\uc5d0\uc11c \ud06c\uac8c \ub2e4\ub974\uba70, \uc774 \ub450 \uc0c1\ud0dc\ub294 \uc11c\ub85c \ub300\uccb4\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<h3 class=\"wp-block-heading\">\ub2f4\uae08\uc9c8 \uc0c1\ud0dc \uacbd\ub3c4<\/h3>\n<p class=\"wp-block-paragraph\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ubc0f \uae09\uc18d \ub0c9\uac01 \ud6c4 440C\ub294 \ud15c\ud37c\ub9c1\ub418\uc9c0 \uc54a\uc740 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub97c \ud615\uc131\ud558\uba70 \uc57d 60~62 HRC\uc758 \ucd5c\ub300 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud569\ub2c8\ub2e4. \uc774 \uc0c1\ud0dc\uc5d0\uc11c \uc7ac\ub8cc\ub294 \ub192\uc740 \ub0b4\ubd80 \uc751\ub825\uc744 \ud568\uc720\ud558\uace0 \ub9e4\uc6b0 \ub0ae\uc740 \uc5f0\uc131\uc744 \ub098\ud0c0\ub0b4\uc5b4 \uade0\uc5f4\uc5d0 \ub9e4\uc6b0 \ucde8\uc57d\ud569\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc758 \ubcc0\ud654\ub294 \uce21\uc815\ub41c \uacbd\ub3c4\uc5d0 \ucc28\uc774\ub97c \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc601\ud558 \ub610\ub294 \uadf9\uc800\uc628 \ucc98\ub9ac\uc640 \uac19\uc740 \ucd94\uac00 \uacf5\uc815\uc744 \ud1b5\ud574 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \uc904\uc774\uace0 \uad6c\uc870\ub97c \uc548\uc815\ud654\uc2dc\ud0a4\uae30\ub3c4 \ud558\uc9c0\ub9cc, \uc774\ub7ec\ud55c \uc0c1\ud0dc\ub294 \ucd5c\uc885\uc801\uc73c\ub85c \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uc0c1\ud0dc\ub97c \ub098\ud0c0\ub0b4\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n<h3 class=\"wp-block-heading\">\uac15\ud654 \uacbd\ub3c4<\/h3>\n<p class=\"wp-block-paragraph\">\uc0b0\uc5c5 \ud604\uc7a5\uc5d0\uc11c 440C\ub294 \ub2f4\uae08\uc9c8 \ud6c4 \ud56d\uc0c1 \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub97c \ud569\ub2c8\ub2e4. \ud15c\ud37c\ub9c1\uc740 \ub0b4\ubd80 \uc751\ub825\uc744 \uc644\ud654\ud558\uace0 \ubbf8\uc138 \uad6c\uc870\ub97c \uc548\uc815\ud654\ud558\uba70 \ud30c\uad34 \uc800\ud56d\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \ub3d9\uc2dc\uc5d0 \uacbd\ub3c4\ub97c \uc57d\uac04 \uac10\uc18c\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\ucd5c\uc885 440\u00b0C \uacbd\ud654 \uacbd\ub3c4\ub294 \ud15c\ud37c\ub9c1 \uc870\uac74\uc5d0 \ub530\ub77c \uacb0\uc815\ub429\ub2c8\ub2e4. \uc774\ub294 \uc8fc\ub85c \ud15c\ud37c\ub9c1 \uc628\ub3c4\uc5d0 \uc758\ud574 \uc88c\uc6b0\ub418\uba70, \ud15c\ud37c\ub9c1 \uc628\ub3c4\ub294 \uacbd\ub3c4, \uc778\uc131 \ubc0f \uce58\uc218 \uc548\uc815\uc131 \uac04\uc758 \uade0\ud615\uc744 \uacb0\uc815\ud569\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uc0ac\uc591\uc5d0\uc11c\ub294 \ub2f4\uae08\uc9c8 \ud6c4 \uad00\ucc30\ub418\ub294 \ucd5c\ub300 \uacbd\ub3c4\uac00 \uc544\ub2cc \ud15c\ud37c\ub9c1 \ud6c4 \uacbd\ub3c4\ub97c \ud56d\uc0c1 \uc5b8\uae09\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2 class=\"wp-block-heading\">440C \uac15\ucca0\uc758 \uacbd\ud654 \uacbd\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc694\uc778<\/h2>\n<p class=\"wp-block-paragraph\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\ub294 \uc7a0\uc7ac\uc801\uc778 \uacbd\ub3c4\ub97c \uacb0\uc815\ud558\ub294 \ub370 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc628\ub3c4\uac00 \ub192\uc544\uc9c0\uba74 \ub354 \ub9ce\uc740 \ud0c4\uc18c\uac00 \uae30\uc9c0\uc5d0 \uc6a9\ud574\ub418\uc5b4 \ub2ec\uc131 \uac00\ub2a5\ud55c \uacbd\ub3c4\uac00 \uc99d\uac00\ud558\uc9c0\ub9cc, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc0dd\uc131\ub3c4 \ucd09\uc9c4\ub418\uc5b4 \ub2f4\uae08\uc9c8 \ud6c4 \uc720\ud6a8 \uacbd\ub3c4\uac00 \uac10\uc18c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\ub2f4\uae08\uc9c8 \ud6a8\uc728\uc740 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uac00 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub85c \ubcc0\ud0dc\ub418\ub294 \uc815\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \ub0c9\uac01 \uc18d\ub3c4\uac00 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc73c\uba74 \uad6c\uc870\uc758 \uc77c\ubd80\uac00 \ubcc0\ud0dc\ub418\uc9c0 \uc54a\uace0 \ub0a8\uc544 \uacbd\ub3c4\uac00 \ub0ae\uc544\uc9d1\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\ub2f4\uae08\uc9c8 \ud6c4 \uc794\ub958\ud558\ub294 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc758 \uc591 \ub610\ud55c \uce21\uc815\ub41c \uacbd\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ud568\ub7c9\uc774 \ub192\uc744\uc218\ub85d \uc720\ud6a8 \uacbd\ub3c4\uac00 \ub0ae\uc544\uc9c0\uace0, \uc11c\ub85c \ub2e4\ub978 \uc870\uac74\uc5d0\uc11c \uac00\uacf5\ub41c \ubd80\ud488 \uac04\uc758 \ubcc0\ub3d9\uc131\uc774 \ucee4\uc9d1\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\ud15c\ud37c\ub9c1 \uc628\ub3c4\ub294 \ucd5c\uc885 \uacbd\ub3c4\ub97c \uacb0\uc815\ud569\ub2c8\ub2e4. \ud15c\ud37c\ub9c1 \uc628\ub3c4\uac00 \ub0ae\uc73c\uba74 \uacbd\ub3c4\uac00 \ucd5c\ub300\uce58\uc5d0 \uac00\uae5d\uac8c \uc720\uc9c0\ub418\ub294 \ubc18\uba74, \ud15c\ud37c\ub9c1 \uc628\ub3c4\uac00 \ub192\uc73c\uba74 \uacbd\ub3c4\ub294 \ub0ae\uc544\uc9c0\uc9c0\ub9cc \uc778\uc131\uacfc \uce58\uc218 \uc548\uc815\uc131\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/p>\n<h2 class=\"wp-block-heading\">440C \uac15\uc7ac \uacbd\ub3c4 \ud658\uc0b0<\/h2>\n<p class=\"wp-block-paragraph\">Drawings, mill certificates and customer specifications switch between Rockwell C, Vickers and Brinell. The table below covers the working range of 440C and reproduces the comparative hardness table for steel in Machinery&#8217;s Handbook, which carries the ASTM E140 values. Spot values between the rows can be read on the <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-hardness-conversion-calculator\/\">\uacf5\uad6c\uac15 \uacbd\ub3c4 \ud658\uc0b0 \uacc4\uc0b0\uae30<\/a>.<\/p>\n<figure class=\"wp-block-table is-style-stripes\">\n<table class=\"has-fixed-layout\">\n<thead>\n<tr>\n<th class=\"has-text-align-left\" data-align=\"left\">\ub85d\uc6f0 C<\/th>\n<th class=\"has-text-align-left\" data-align=\"left\">Vickers HV<\/th>\n<th class=\"has-text-align-left\" data-align=\"left\">\ube0c\ub9ac\ub12c HB, \ucd08\uacbd \ubcfc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">62<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">746<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">\ud45c\uae30 \uc5c6\uc74c<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">61<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">720<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">\ud45c\uae30 \uc5c6\uc74c<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">60<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">697<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">654<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">59<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">674<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">634<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">58<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">653<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">615<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">57<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">633<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">595<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">56<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">613<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">577<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">55<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">595<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">560<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">54<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">577<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">543<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">53<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">560<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">525<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-left\" data-align=\"left\">52<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">544<\/td>\n<td class=\"has-text-align-left\" data-align=\"left\">512<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"wp-block-paragraph\"><em>\ucd9c\ucc98, Comparative Hardness Scales for Steel, Machinery's Handbook.<\/em><\/p>\n<\/figure>\n<p class=\"wp-block-paragraph\">\ud45c\uc900 10 mm \ubcfc \ube0c\ub9ac\ub12c \uac12\uc740 \uc57d 500 HB \uc774\uc0c1\uc5d0\uc11c \ubc94\uc704\ub97c \ubc97\uc5b4\ub098\ubbc0\ub85c, 440C\uac00 \ub3c4\ub2ec\ud558\ub294 \uacbd\ub3c4\uc5d0\uc11c\ub294 \ucd08\uacbd \ubcfc \uc5f4\uc744 \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4. \uacbd\ud654\ub41c 440C \ubd80\ud488\uc758 \ube0c\ub9ac\ub12c \uce21\uc815\uac12\uc740 \uac19\uc740 \uc9c0\uc810\uc5d0\uc11c \uce21\uc815\ud55c \ub85c\ud06c\uc6f0 C \uac12\ubcf4\ub2e4 \uac00\uce58\uac00 \ub0ae\uc73c\uba70, \ud658\uc0b0\ud45c\ub294 \ubd80\ud488\uc744 \uce21\uc815\ud558\ub294 \uac83\uc744 \ub300\uccb4\ud558\uc9c0 \ubabb\ud569\ub2c8\ub2e4.<\/p>\n<h2 class=\"wp-block-heading\">440C \uac15\uc7ac \uacbd\ub3c4\uac00 \ub0ae\uac8c \ub098\uc62c \ub54c<\/h2>\n<p class=\"wp-block-paragraph\">\ubc94\uc704 \ubbf8\ub9cc\uc758 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\uac00 \uccab \ubc88\uc9f8 \uc6d0\uc778\uc785\ub2c8\ub2e4. 1010 \u00b0C \ubbf8\ub9cc\uc5d0\uc11c\ub294 \ud0c4\ud654\ubb3c\uc774 \uc644\uc804\ud788 \uc6a9\ud574\ub418\uc9c0 \uc54a\uace0 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc758 \ud0c4\uc18c \ub18d\ub3c4\uac00 \ub0ae\uac8c \uc720\uc9c0\ub418\uc5b4, \ub2f4\uae08\uc9c8\ub41c \ubd80\ud488\uc774 \uc608\uc0c1 \uc218\uce58\ubcf4\ub2e4 \uba87 \ud3ec\uc778\ud2b8 \ub0ae\uac8c \ub098\uc635\ub2c8\ub2e4. 1010~1065 \u00b0C \ubc94\uc704 \ub0b4\uc5d0\uc11c \uc7ac\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\ud558\uba74 \ud574\uacb0\ub418\uba70, \ub450\uaebc\uc6b4 \ub2e8\uba74\uc740 \ud574\ub2f9 \ubc94\uc704\uc758 \uc0c1\ud55c\uc5d0\uc11c \ub450\uaed8\uc5d0 \ube44\ub840\ud558\uc5ec \uc720\uc9c0 \uc2dc\uac04\uc744 \ucd94\uac00\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\ub290\ub9b0 \ub0c9\uac01\uc740 \ub2e4\ub978 \uc774\uc720\ub85c \uac19\uc740 \uc99d\uc0c1\uc744 \uc77c\uc73c\ud0b5\ub2c8\ub2e4. 440C\uc5d0\ub294 \uc624\uc77c\uc774 \uc120\ud638\ub418\ub294 \ub9e4\uccb4\uc785\ub2c8\ub2e4. \uacf5\ub7ad\uc740 \uc587\uc740 \ub2e8\uba74\uc5d0\uc11c \uac00\ub2a5\ud558\uba70, \uacbd\ud654\ub2a5\uc774 \ub192\uae30 \ub54c\ubb38\uc5d0 \uc5f4\uc720 \ub610\ub294 \uc5fc\uc695 \ub9c8\ub974\ud15c\ud37c\ub9c1\ub3c4 \uac00\ub2a5\ud558\uc9c0\ub9cc, \ub450\uaebc\uc6b4 \uc2ec\ubd80\uac00 \ubcc0\ud0dc\ub97c \uba48\ucd94\uae30 \uc804\uc5d0 \ubd80\ud488\uc774 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ubc94\uc704\uc5d0 \ub3c4\ub2ec\ud574\uc57c \ud569\ub2c8\ub2e4. \ub450\uaebc\uc6b4 \ubd09\uc7ac\uc5d0\uc11c\ub294 \ub2e8\uba74 \uc790\uccb4\uac00 \ubb38\uc81c\uc77c \uc218 \uc788\uc73c\uba70, \uc774\ub97c \ud68c\ubcf5\uc2dc\ud0a4\ub294 \ud15c\ud37c\ub9c1 \uc77c\uc815\uc740 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub294 \uba85\ud655\ud55c \uc6d0\uc778 \uc5c6\uc774 \uacbd\ub3c4\ub97c \uc190\uc2e4\uc2dc\ud0b5\ub2c8\ub2e4. -71 \u00b0C\uc5d0\uc11c\uc758 \ub0c9\uac01 \ucc98\ub9ac, \ub610\ub294 \ud56d\uacf5\uc6b0\uc8fc \uc2e4\ubb34\uc5d0\uc11c -70 \u00b0C \uc774\ud558\ub85c \ucd5c\uc18c 2\uc2dc\uac04 \ucc98\ub9ac\ub294 \ub2f4\uae08\uc9c8 \ud6c4 \ub0a8\uc740 \ub300\ubd80\ubd84\uc744 \ubcc0\ud0dc\uc2dc\ud0b5\ub2c8\ub2e4. \uc774\ud6c4 2\ud68c \ud15c\ud37c\ub9c1\ud558\uace0 \ud15c\ud37c\ub9c1 \uc0ac\uc774\uc5d0 \uc2e4\uc628\uc73c\ub85c \ub0c9\uac01\ud558\uc2ed\uc2dc\uc624. \ub450 \ubc88\uc9f8 \ud15c\ud37c\ub9c1\uc740 \ub2f4\uae08\uc9c8\uc5d0\uc11c \uc0dd\uae34 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uac00 \uc544\ub2c8\ub77c \uadf8 \ub0c9\uac01 \uc911\uc5d0 \ud615\uc131\ub41c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub97c \ucc98\ub9ac\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\uc77c\ubd80 \ub0ae\uc740 \ud310\ub3c5\uac12\uc740 \ubd80\ud488\uc774 \uc544\ub2c8\ub77c \uc2dc\ud5d8\uc758 \ubb38\uc81c\uc785\ub2c8\ub2e4. \ud0c8\ud0c4\uce35\uc740 \uc5f0\ud558\uac8c \uce21\uc815\ub418\ubbc0\ub85c \uacbd\ub3c4\ub294 \ud45c\uba74 \uc544\ub798 \ub610\ub294 \uc5f0\uc0ad \ud6c4\uc5d0 \uce21\uc815\ud569\ub2c8\ub2e4. \uc555\ud754\uc740 \ub610\ud55c \ud3c9\ud3c9\ud558\uace0 \uae68\ub057\ud55c \ud45c\uba74\uacfc \uadf8 \uc544\ub798 \ucda9\ubd84\ud55c \ub2e8\uba74\uc744 \ud544\uc694\ub85c \ud558\ub294\ub370, \uc587\uac70\ub098 \uc9c0\uc9c0\ub418\uc9c0 \uc54a\uc740 \ubaa8\uc11c\ub9ac\uc5d0\uc11c \uce21\uc815\ud55c \ub85c\ud06c\uc6f0 C \ud310\ub3c5\uac12\uc740 \uacbd\ub3c4 \uac12\uc774 \uc804\ud600 \uc544\ub2c8\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\uc81c\ucca0\uc18c\ub294 440C\ub97c \uc5b4\ub2d0\ub9c1 \uc0c1\ud0dc\ub85c \uacf5\uae09\ud558\ubbc0\ub85c, \uc81c\ucca0\uc18c \uc778\uc99d\uc11c\uc758 \uacbd\ub3c4\ub294 \uc5b4\ub2d0\ub9c1 \uacbd\ub3c4\uc774\uba70 \ubd80\ud488\uc774 \uc0ac\uc6a9\ub418\ub294 \uacbd\ub3c4\uac00 \uc544\ub2d9\ub2c8\ub2e4. \uacf5\uae09 \uc0c1\ud0dc, \uacbd\ub3c4 \ud55c\uacc4 \ubc0f \uc2dc\ud5d8 \uc704\uce58\ub97c \uad6c\ub9e4 \uc8fc\ubb38\uc11c\uc5d0 \uba85\uc2dc\ud558\uace0, \uacbd\ud654 \uacf5\uc815\uc740 \ubcc4\ub3c4\uc758 \ud569\uaca9 \uac12\uc73c\ub85c \uad00\ub9ac\ud558\uc2ed\uc2dc\uc624.<\/p>\n<h2 class=\"wp-block-heading\">440C \uac15\ucca0\uc758 \uacbd\ub3c4 \uac12\uc774 \ub2e4\ub974\uac8c \ub098\ud0c0\ub098\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?<\/h2>\n<p class=\"wp-block-paragraph\">440C\uc758 \uacbd\ub3c4 \uac12\uc740 \uac00\uacf5 \uad00\ub9ac \ubc0f \uce21\uc815 \uc870\uac74\uc758 \ucc28\uc774\ub85c \uc778\ud574 \uacf5\uae09\uc5c5\uccb4, \uc0ac\uc591 \ubc0f \uc2dc\ud5d8 \ubcf4\uace0\uc11c\uc5d0 \ub530\ub77c \uc885\uc885 \ub2e4\ub985\ub2c8\ub2e4.<\/p>\n<ul class=\"wp-block-list\">\n<li>\uc5f4\ucc98\ub9ac \uacfc\uc815. \uc6a9\uad11\ub85c \uc81c\uc5b4, \uc720\uc9c0 \uc2dc\uac04 \ubc0f \ub0c9\uac01 \uc870\uac74\uc758 \ucc28\uc774\ub85c \uc778\ud574 \ucd5c\uc885 \ubbf8\uc138 \uad6c\uc870\uc5d0 \ubcc0\ud654\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4. \uc77c\ubd80 \uacf5\uc815\uc5d0\ub294 \uadf9\uc800\uc628 \ucc98\ub9ac\uc640 \uac19\uc740 \ucd94\uac00 \ub2e8\uacc4\uac00 \ud3ec\ud568\ub418\ub294 \ubc18\uba74, \ub2e4\ub978 \uacf5\uc815\uc5d0\ub294 \ud3ec\ud568\ub418\uc9c0 \uc54a\uc544 \uacbd\ub3c4 \uacb0\uacfc\uac00 \ub2e4\ub974\uac8c \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/li>\n<li>\ud15c\ud37c\ub9c1 \uc2e4\ubb34. \ud15c\ud37c\ub9c1 \uc628\ub3c4\ub098 \uc0ac\uc774\ud074 \uc124\uacc4\uc758 \uc791\uc740 \ubcc0\ud654\ub3c4 \ucd5c\uc885 \uacbd\ub3c4\ub97c \uc77c\ubc18\uc801\uc778 \ubc94\uc704 \ub0b4\uc5d0\uc11c \ubcc0\ud654\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\uce21\uc815 \uc870\uac74. \uacbd\ub3c4 \uce21\uc815\uac12\uc740 \uc2dc\ud5d8 \uc704\uce58, \ud45c\uba74 \uc0c1\ud0dc \ubc0f \uad6d\ubd80\uc801\uc778 \ubbf8\uc138 \uad6c\uc870\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \ud0c4\ud654\ubb3c \ubd84\ud3ec\ub294 \uad6d\ubd80\uc801\uc778 \uce21\uc815\uac12\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p class=\"wp-block-paragraph\">\ub530\ub77c\uc11c, \uc11c\ub85c \ub2e4\ub978 \ucd9c\ucc98\uc5d0\uc11c \uc5bb\uc740 \uacbd\ub3c4 \uac12\uc744 \ube44\uad50\ud560 \ub54c\ub294 \uadfc\ubcf8\uc801\uc778 \ucc98\ub9ac \uacfc\uc815\uc744 \uc774\ud574\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n<h2 class=\"wp-block-heading\">440C \uac15\ucca0\uc758 \uacbd\ud654 \uacbd\ub3c4\uc5d0 \ub300\ud55c \uacf5\ud559\uc801 \ud574\uc11d<\/h2>\n<p class=\"wp-block-paragraph\">\uacf5\ud559 \uc2e4\ubb34\uc5d0\uc11c 440C\uc758 \uacbd\ud654 \uacbd\ub3c4\ub294 \ub0b4\ub9c8\ubaa8\uc131\uacfc \uc5f0\uc131 \uc0ac\uc774\uc758 \uade0\ud615\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">57~60 HRC\uc5d0\uc11c 440C\ub294 \uc6b0\uc218\ud55c \ub0b4\ub9c8\ubaa8\uc131, \ub192\uc740 \uc555\ucd95\uac15\ub3c4 \ubc0f \uac15\ud55c \ub0a0 \uc720\uc9c0\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \ud45c\uba74 \ub9c8\ubaa8\uac00 \uc9c0\ubc30\uc801\uc778 \ud30c\uc190 \ubaa8\ub4dc\uc778 \ubd80\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\ub3d9\uc2dc\uc5d0, \uc774\ub7ec\ud55c \uacbd\ub3c4\ub294 \ub0ae\uc740 \uc5f0\uc131\uacfc \uc81c\ud55c\ub41c \ucda9\uaca9 \uc800\ud56d\uc131\uc744 \ucd08\ub798\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \ud574\ub2f9 \uc18c\uc7ac\ub294 \uc751\ub825 \uc9d1\uc911 \ud604\uc0c1\uc5d0 \ubbfc\uac10\ud558\uba70 \ucda9\uaca9, \uad7d\ud798 \ub610\ub294 \ub3d9\uc801 \ud558\uc911\uc774 \uac00\ud574\uc9c0\ub294 \uc6a9\ub3c4\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\uc774\ub7ec\ud55c \ud2b9\uc131 \ub54c\ubb38\uc5d0 \ubaa8\ub4e0 \uae30\uacc4 \uac00\uacf5 \ubc0f \uc131\ud615 \uc791\uc5c5\uc740 \uacbd\ud654 \uc804\uc5d0 \uc5b4\ub2d0\ub9c1\ub41c \uc0c1\ud0dc\uc5d0\uc11c \uc644\ub8cc\ud574\uc57c \ud569\ub2c8\ub2e4. \uc6a9\uc811\uc740 \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc774 \ub192\uc544 \uc77c\ubc18\uc801\uc73c\ub85c \ud53c\ud574\uc57c \ud558\uba70, \ubd80\ud488 \uc124\uacc4 \uc2dc \uae09\uaca9\ud55c \uc804\ud658 \ubc0f \uac11\uc791\uc2a4\ub7ec\uc6b4 \ud615\uc0c1 \ubcc0\ud654\ub97c \ubc29\uc9c0\ud558\uc5ec \uc751\ub825 \uc9d1\uc911\uc744 \ucd5c\uc18c\ud654\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\ub0b4\ub9c8\ubaa8\uc131\uacfc \uce58\uc218 \uc548\uc815\uc131\uc774 \uc8fc\uc694 \uc694\uad6c \uc0ac\ud56d\uc77c \ub54c\ub294 440C\ub97c \uc120\ud0dd\ud574\uc57c \ud558\uba70, \ucda9\uaca9 \uc778\uc131\uc774\ub098 \uad6c\uc870\uc801 \uc5f0\uc131\uc774 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0\ub294 440C\ub97c \ud53c\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p class=\"wp-block-paragraph\">\ub300\ud45c\uc801\uc778 \uc801\uc6a9 \ubd84\uc57c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4<\/p>\n<ul class=\"wp-block-list\">\n<li>\uc12c\uc720 \ubc0f \uc0b0\uc5c5 \uc7a5\ube44\uc6a9 \ub0b4\ub9c8\ubaa8\uc131 \ubd80\ud488<\/li>\n<li>\ubca0\uc5b4\ub9c1 \ubcfc \ubc0f \ubca0\uc5b4\ub9c1 \ub808\uc774\uc2a4<\/li>\n<li>\ubc38\ube0c \uc2dc\ud2b8 \ubc0f \ub2c8\ub4e4 \ubc38\ube0c\uc640 \uac19\uc740 \ubc38\ube0c \uad6c\uc131 \uc694\uc18c<\/li>\n<li>\ud38c\ud504 \ubd80\ud488 \ubc0f \ubd80\uc2f1<\/li>\n<li>\uc815\ubc00 \uae30\uae30 \ubc0f \uc808\uc0ad\ub0a0<\/li>\n<\/ul>\n<p class=\"wp-block-paragraph\">\uc544\uc624\ubcf4 \uc2a4\ud2f8(Aobo Steel)\uc740 \uc815\ubc00 \uc5f4\ucc98\ub9ac\ub97c \uc704\ud574 \uc5b4\ub2d0\ub9c1 \uc0c1\ud0dc\uc758 440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \uacf5\uae09\ud569\ub2c8\ub2e4. \uac15\uc885 \ub370\uc774\ud130\ub294 \ub2e4\uc74c\uc5d0 \uc788\uc2b5\ub2c8\ub2e4: <a href=\"https:\/\/aobosteel.com\/ko\/440c-stainless-steel\/\">440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uc81c\ud488 \ud398\uc774\uc9c0<\/a>, \uacf5\uc815 \uc708\ub3c4\uc6b0\ub294 \ub2e4\uc74c\uc5d0 \uc788\uc2b5\ub2c8\ub2e4: <a href=\"https:\/\/aobosteel.com\/ko\/440c-stainless-steel-heat-treatment\/\">440C \uc5f4\ucc98\ub9ac \ud398\uc774\uc9c0<\/a>, \ubb38\uc758 \uc0ac\ud56d\uc740 \ub2e4\uc74c\uc73c\ub85c \uc5f0\ub77d\ud558\uc2ed\uc2dc\uc624 <a href=\"mailto:sales@aobosteel.com\">sales@aobosteel.com<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>440C Stainless Steel Hardened Hardness 440C stainless steel typically reaches a hardened hardness of up to 60 HRC under proper heat treatment conditions. This places it at the upper end of hardness among martensitic stainless steels used for wear-resistant applications. 440C Steel Typical Hardened Hardness Range In practical service conditions, the 440C hardness range generally [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-14774","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>440C Stainless Steel Hardness Chart and Tempering Data<\/title>\n<meta name=\"description\" content=\"440C reaches 57 to 60 HRC. 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Stainless Steel Hardened Hardness 440C stainless steel typically reaches a hardened hardness of up to 60 HRC under proper heat treatment conditions. This places it at the upper end of hardness among martensitic stainless steels used for wear-resistant applications. 440C Steel Typical Hardened Hardness Range In practical service conditions, the 440C hardness range generally&hellip;","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"440C Stainless Steel Hardened Hardness 440C stainless steel typically reaches a hardened hardness of up to 60 HRC under proper heat treatment conditions. This places it at the upper end of hardness among martensitic stainless steels used for wear-resistant applications. 440C Steel Typical Hardened Hardness Range In practical service conditions, the 440C hardness range generally&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/14774","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=14774"}],"version-history":[{"count":5,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/14774\/revisions"}],"predecessor-version":[{"id":25146,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/14774\/revisions\/25146"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=14774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}