{"id":16029,"date":"2026-06-23T12:40:22","date_gmt":"2026-06-23T04:40:22","guid":{"rendered":"https:\/\/aobosteel.com\/?p=16029"},"modified":"2026-06-23T12:40:23","modified_gmt":"2026-06-23T04:40:23","slug":"case-hardening-steel-guide","status":"publish","type":"post","link":"https:\/\/aobosteel.com\/ko\/blog\/case-hardening-steel-guide\/","title":{"rendered":"\ud45c\uba74 \uacbd\ud654\uac15 \uac00\uc774\ub4dc: \uacf5\uc815 \ubc0f \uc6a9\ub3c4"},"content":{"rendered":"<h1 id=\"h-case-hardening-steel-process-grades-and-when-to-use-it\" class=\"wp-block-heading has-large-font-size\">\ud45c\uba74 \uacbd\ud654\uac15: \uacf5\uc815, \ub4f1\uae09 \ubc0f \uc0ac\uc6a9 \uc2dc\uc810<\/h1>\n\n\n\n<h2 id=\"h-what-is-case-hardening\" class=\"wp-block-heading\">\ud45c\uba74 \uacbd\ud654\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uba74 \uacbd\ud654\ub294 \uc5f0\uc131\uc774 \ub6f0\uc5b4\ub098\uace0 \uc9c8\uae34 \ub0b4\ubd80 \ud45c\uba74\uce35(\u201c\ucf00\uc774\uc2a4\u201d) \uc704\uc5d0 \ub2e8\ub2e8\ud558\uace0 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc788\ub294 \uc678\ubd80\uce35\uc744 \ud615\uc131\ud558\ub294 \ud45c\uba74 \ucc98\ub9ac \uae30\ubc95\uc785\ub2c8\ub2e4. \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \ubc29\ubc95\uc740 \uc800\ud0c4\uc18c\uac15 \ud45c\uba74\uc5d0 \ud0c4\uc18c\ub97c \ud655\uc0b0\uc2dc\ud0a4\ub294 \uce68\ud0c4 \ucc98\ub9ac\uc785\ub2c8\ub2e4. \uad00\ub828 \ud655\uc0b0 \ubc29\ubc95\uc73c\ub85c\ub294 \ud0c4\uc9c8\ud654 \ucc98\ub9ac(\ud0c4\uc18c\uc640 \uc9c8\uc18c)\uc640 \uc9c8\ud654 \ucc98\ub9ac(\uc9c8\uc18c\ub9cc \uc0ac\uc6a9)\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ubaa8\ub4e0 \ucc98\ub9ac \ubc29\ubc95\uc740 \ud45c\uba74\uc758 \ud654\ud559\uc801 \uc870\uc131\uc744 \ubcc0\ud654\uc2dc\ucf1c \ud45c\uba74\uc744 \uacbd\ud654\uc2dc\ud0a8 \ud6c4, \ud544\uc694\ud55c \ubd80\uc704\ub97c \uae09\ub7ad\uc2dc\ud0a4\ub294 \uacfc\uc815\uc744 \uac70\uce69\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uba74 \uacbd\ud654\ub294 \uc720\ub3c4 \uacbd\ud654\ub098 \ud654\uc5fc \uacbd\ud654\uc640 \ud63c\ub3d9\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \uc774 \ub450 \uac00\uc9c0 \ubc29\ubc95 \uc5ed\uc2dc \ud45c\uba74\uce35\uc744 \uacbd\ud654\uc2dc\ud0a4\uc9c0\ub9cc, \uc774\ubbf8 \ucda9\ubd84\ud55c \ud0c4\uc18c\ub97c \ud568\uc720\ud55c \uac15\uc7ac\ub97c \uad6d\ubd80\uc801\uc73c\ub85c \uac00\uc5f4\ud558\uace0 \ub2f4\uae08\uc9c8\ud558\ub294 \ubc29\uc2dd\uc73c\ub85c, \uc0c8\ub85c\uc6b4 \uc6d0\uc18c\ub97c \ucca8\uac00\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774 \uac00\uc774\ub4dc\uc5d0\uc11c\ub294 \ud655\uc0b0 \uae30\ubc18 \ud45c\uba74 \uacbd\ud654 \uacf5\uc815\uc5d0 \ub300\ud574 \ub2e4\ub8f9\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uba74 \uacbd\ud654 \ucc98\ub9ac\ub41c \ubd80\ud488\uc740 \ub450 \uac00\uc9c0 \ud2b9\uc131\uc744 \ub3d9\uc2dc\uc5d0 \uc81c\uacf5\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ub2e8\ub2e8\ud558\uace0 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub6f0\uc5b4\ub09c \ud45c\uba74\uc73c\ub85c, \uc77c\ubc18\uc801\uc73c\ub85c \uacbd\ub3c4\ub294 58~64 HRC\uc785\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uacac\uace0\ud558\uace0 \ucda9\uaca9\uc5d0 \uac15\ud55c \ucf54\uc5b4, \uc77c\ubc18\uc801\uc73c\ub85c 30~45 HRC<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc804\uccb4\uc801\uc73c\ub85c \uacbd\ub3c4 60 HRC\uae4c\uc9c0 \uacbd\ud654\ub41c \uac15\ucca0\uc740 \ucda9\uaca9 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\ud488\uc5d0 \uc0ac\uc6a9\ud558\uae30\uc5d0\ub294 \ub108\ubb34 \ucde8\uc131\uc774 \uac15\ud558\uace0, \uc911\uc2ec\ubd80\uac00 35 HRC\ub85c \uc720\uc9c0\ub41c \uacbd\uc6b0 \ud45c\uba74\uc5d0 \ub178\ucd9c\ub418\uba74 \ub9c8\ubaa8\uac00 \ube60\ub974\uac8c \uc9c4\ud589\ub429\ub2c8\ub2e4. \ud45c\uba74 \uacbd\ud654\ub294 \ub3d9\uc77c \ubd80\ud488 \ub0b4\uc5d0\uc11c \ub450 \uac00\uc9c0 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud558\ub294 \uc601\uc5ed\uc744 \ubd84\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-how-case-hardening-works\" class=\"wp-block-heading\">\ud45c\uba74 \uacbd\ud654\ub294 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud560\uae4c\uc694?<\/h2>\n\n\n\n<h3 id=\"h-carburizing-most-common\" class=\"wp-block-heading\">\uce68\ud0c4 \ucc98\ub9ac(\uac00\uc7a5 \uc77c\ubc18\uc801)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uce68\ud0c4 \ucc98\ub9ac\ub294 \ud0c4\uc18c \ud568\ub7c9\uc774 \ub0ae\uc740 \uac15(\uc77c\ubc18\uc801\uc73c\ub85c 0.10~0.25% \ud0c4\uc18c) \ud45c\uba74\uc5d0 \ud0c4\uc18c\ub97c \ucca8\uac00\ud558\ub294 \uacf5\uc815\uc73c\ub85c, \uc774 \uc815\ub3c4\uc758 \ud0c4\uc18c \ud568\ub7c9\uc73c\ub85c\ub294 \uc790\uccb4\uc801\uc73c\ub85c \uacbd\ud654\ub418\uae30\uc5d0 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\ud0c4\uc18c \ud655\uc0b0: \ubd80\ud488\uc744 \ud0c4\uc18c\uac00 \ud48d\ubd80\ud55c \ubd84\uc704\uae30(\uac00\uc2a4, \uc561\uccb4 \uc5fc \ub610\ub294 \uace0\uccb4 \ud654\ud569\ubb3c)\uc5d0\uc11c 900~950\u00b0C\ub85c \uc720\uc9c0\ud569\ub2c8\ub2e4. \ud0c4\uc18c\ub294 \ud45c\uba74\uc758 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc5d0 \uc6a9\ud574\ub418\uc5b4 \ub0b4\ubd80\ub85c \ud655\uc0b0\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uce68\ud0c4 \uae4a\uc774: \uc77c\ubc18\uc801\uc778 \uc720\ud6a8 \uce68\ud0c4 \uae4a\uc774\ub294 0.5~2.0mm\uc785\ub2c8\ub2e4. \uce68\ud0c4 \uae4a\uc774\ub294 \uc77c\uc815\ud55c \ube44\uc728\uc774 \uc544\ub2c8\ub77c \uc2dc\uac04\uc758 \uc81c\uacf1\uadfc\uc5d0 \ube44\ub840\ud558\uc5ec \uc99d\uac00\ud558\ubbc0\ub85c, \uce68\ud0c4 \uae4a\uc774\uac00 \uae4a\uc744\uc218\ub85d \uacbd\ud654 \uc2dc\uac04\uc774 \ube44\ub840\uc801\uc73c\ub85c \uae38\uc5b4\uc9d1\ub2c8\ub2e4. \uce68\ud0c4 \uae4a\uc774\uac00 \ub300\ub7b5 \ub450 \ubc30\uac00 \ub418\uba74 \ub3d9\uc77c\ud55c \uc628\ub3c4\uc5d0\uc11c \uce68\ud0c4 \uc2dc\uac04\uc774 \uc57d \ub124 \ubc30\uac00 \ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ub2f4\uae08\uc9c8: \ubd80\ud488\uc744 \uc624\uc77c\uc774\ub098 \ubb3c\uc5d0 \ub2f4\uae08\uc9c8\ud569\ub2c8\ub2e4. \uace0\ud0c4\uc18c \ud45c\uba74\uc740 60~64 HRC\uc758 \uacbd\ub3c4\ub97c \uac00\uc9c4 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub85c \ubcc0\ud658\ub418\ub294 \ubc18\uba74, \uc800\ud0c4\uc18c \uc911\uc2ec\ubd80\ub294 \ub354 \ubd80\ub4dc\ub7fd\uace0 \uc778\uc131\uc774 \ub6f0\uc5b4\ub09c \uc0c1\ud0dc\ub85c \uc720\uc9c0\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ud15c\ud37c\ub9c1: 150~200\u00b0C\uc758 \uc800\uc628 \ud15c\ud37c\ub9c1\uc740 \ud45c\uba74 \uacbd\ub3c4 \uc190\uc2e4\uc744 \ucd5c\uc18c\ud654\ud558\uba74\uc11c \uc751\ub825\uc744 \uc644\ud654\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n\n\n\n<h3 id=\"h-carbonitriding\" class=\"wp-block-heading\">\ud0c4\uc9c8\ud654<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud0c4\uc9c8\ud654 \ucc98\ub9ac\ub294 \uae30\ubcf8\uc801\uc73c\ub85c \uc9c8\uc18c\ub97c \ubd84\uc704\uae30\uc5d0 \ucca8\uac00\ud558\uc5ec \uce68\ud0c4\ud558\ub294 \uacf5\uc815\uc785\ub2c8\ub2e4. \uc9c8\uc18c\ub294 \uacbd\ud654\uc131\uc744 \ub192\uc774\uace0 \uacbd\ud654 \uc628\ub3c4\ub97c \ub0ae\ucd94\uc5b4, \ubd80\ud488\uc744 \uc57d 800~870\u00b0C\uc5d0\uc11c \ucc98\ub9ac\ud558\uace0 \uc624\uc77c \ub2f4\uae08\uc9c8\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4. \ud45c\uba74 \uacbd\ud654\uce35\uc740 \uc77c\ubc18 \uce68\ud0c4\ubcf4\ub2e4 \uc595\uc73c\uba70(\ubcf4\ud1b5 0.1~0.5mm), \uacf5\uc815 \uc18d\ub3c4\ub3c4 \ube60\ub985\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc18c\ud615 \ubd80\ud488\uc774\ub098 \ub300\ub7c9 \uc0dd\uc0b0\ub418\ub294 \ub9c8\ubaa8 \ubd80\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-nitriding\" class=\"wp-block-heading\">\uc9c8\ud654<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc9c8\ud654 \ucc98\ub9ac\ub294 \uc554\ubaa8\ub2c8\uc544 \uac00\uc2a4 \ub610\ub294 \uc5fc\uc695 \ubd84\uc704\uae30\uc5d0\uc11c \uc57d 500~550\u00b0C\uc758 \uc800\uc628\uc5d0\uc11c \uc9c8\uc18c\ub97c \ud45c\uba74\uc73c\ub85c \ud655\uc0b0\uc2dc\ud0a4\ub294 \uacf5\uc815\uc785\ub2c8\ub2e4. \uacbd\ud654\ub294 \ud604\uc7a5\uc5d0\uc11c \ud615\uc131\ub418\ub294 \ub2e8\ub2e8\ud55c \uc9c8\ud654\ubb3c\uc5d0\uc11c \ube44\ub86f\ub418\ubbc0\ub85c \ub2f4\uae08\uc9c8\uc774 \ud544\uc694\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ud45c\uba74\uce35\uc740 \uc57d 0.1~0.5mm\ub85c \uc587\uc9c0\ub9cc, \uc57d 700~1100 HV\uc758 \ub9e4\uc6b0 \ub192\uc740 \uacbd\ub3c4\ub97c \uac00\uc9c0\uba70, \ub2f4\uae08\uc9c8\uc774\ub098 \ub0b4\ubd80 \uc0c1\ubcc0\ud654\uac00 \uc5c6\uae30 \ub54c\ubb38\uc5d0 \ubcc0\ud615\uc774 \ucd5c\uc18c\ud654\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc9c8\ud654 \ucc98\ub9ac\ub294 \uc77c\ubc18\uc801\uc778 \uc800\ud0c4\uc18c \uce68\ud0c4\uac15\uc5d0\ub294 \uc801\uc6a9\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374, \uc54c\ub8e8\ubbf8\ub284 \ub610\ub294 \ubc14\ub098\ub4d0\uacfc \uac19\uc740 \uc9c8\ud654\ubb3c \ud615\uc131 \uc6d0\uc18c\ub97c \ud568\uc720\ud55c \uac15\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \uc2e4\uc81c\ub85c \uc774\ub294 \uc911\ud0c4\uc18c \ud569\uae08\uac15(\uc608:, <a href=\"https:\/\/aobosteel.com\/ko\/blog\/4140-steel-properties\/\">4140<\/a> (\uadf8\ub9ac\uace0 \uc9c8\ud654 \uc804\uc6a9 \uac15) \ubc0f \ub2e4\uc591\ud55c \uacf5\uad6c\uac15. <a href=\"https:\/\/aobosteel.com\/ko\/h13-tool-steel\/\">H13<\/a>, \uc608\ub97c \ub4e4\uc5b4, \ub294 \ub2e4\uc774\uce90\uc2a4\ud305 \ubc0f \uc555\ucd9c \uacf5\uad6c\uc758 \ud45c\uba74 \ub9c8\ubaa8 \ubc0f \uce68\uc2dd \uc800\ud56d\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud574 \uc77c\uc0c1\uc801\uc73c\ub85c \uc9c8\ud654 \ucc98\ub9ac\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-steels-suitable-for-case-hardening\" class=\"wp-block-heading\">\ud45c\uba74 \uacbd\ud654\uc5d0 \uc801\ud569\ud55c \uac15\ucca0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uce68\ud0c4 \ubc0f \ud0c4\uc9c8\ud654 \uacf5\uc815\uc5d0\ub294 \uc800\ud0c4\uc18c \uae30\ubcf8\uac15\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \uace0\ud0c4\uc18c\uac15\uc5d0 \ucca8\uac00\ub418\ub294 \ud569\uae08 \uc131\ubd84\uc740 \uc2ec\ubd80 \uac15\ub3c4\uc640 \ub450\uaebc\uc6b4 \ub2e8\uba74\uc758 \ud45c\uba74 \uacbd\ud654\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ub4f1\uae09 (AISI\/GB)<\/th><th>\ud0c4\uc18c<\/th><th>\uc8fc\uc694 \ud569\uae08<\/th><th>\uc77c\ubc18\uc801\uc778 \uc0ac\uc6a9<\/th><\/tr><\/thead><tbody><tr><td>1018<\/td><td>~0.18%<\/td><td>\ub9dd<\/td><td>\uc2a4\ud2b8\ub808\uc2a4\uac00 \uc801\uc740 \ub9c8\ubaa8 \ubd80\ud488, \ucd5c\uc800 \ube44\uc6a9<\/td><\/tr><tr><td>1020<\/td><td>~0.20%<\/td><td>\ub9dd<\/td><td>\uc77c\ubc18 \ubaa9\uc801<\/td><\/tr><tr><td>8620<\/td><td>~0.20%<\/td><td>\ub2c8\ucf08-\ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374<\/td><td>\uae30\uc5b4, \ucd95, \ud540, \ucea0\ucd95<\/td><\/tr><tr><td>4320<\/td><td>~0.20%<\/td><td>\ub2c8\ucf08-\ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374<\/td><td>\uace0\uac15\ub3c4 \uae30\uc5b4<\/td><\/tr><tr><td>9310<\/td><td>~0.10%<\/td><td>\ub2c8\ucf08-\ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374<\/td><td>\ud56d\uacf5\uae30 \uae30\uc5b4, \ub192\uc740 \uc2e0\ub8b0\uc131<\/td><\/tr><tr><td>20CrMnTi<\/td><td>~0.20%<\/td><td>\ud06c\ub86c-\ub9dd\uac04-\ud2f0\ud0c0\ub284<\/td><td>\uc790\ub3d9\ucc28 \ubcc0\uc18d\uae30 \uae30\uc5b4 (\uc911\uad6d\uc5d0\uc11c \ud754\ud788 \uc0ac\uc6a9\ub428)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">8620\uc740 \uac00\uc7a5 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \ud569\uae08 \uce68\ud0c4\uac15\uc73c\ub85c, \uc6b0\uc218\ud55c \uc778\uc131\uacfc \uc801\ub2f9\ud55c \uacbd\ud654\uc131\uc744 \uade0\ud615 \uc788\uac8c \uac16\ucd94\uace0 \uc788\uc2b5\ub2c8\ub2e4. 20CrMnTi\ub294 \ud2f0\ud0c0\ub284\uc744 \ucca8\uac00\ud558\uc5ec \uacb0\uc815\ub9bd\uc744 \ubbf8\uc138\ud654\ud588\uc73c\uba70, \uc911\uad6d \uc790\ub3d9\ucc28 \uae30\uc5b4 \uc0dd\uc0b0\uc5d0\uc11c \uc8fc\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc77c\ubc18 \ud0c4\uc18c\uac15\uc778 1018\uacfc 1020\uc740 \uac00\uc7a5 \uc800\ub834\ud55c \uc635\uc158\uc774\uc9c0\ub9cc, \uc778\uc131\uacfc \uacbd\ud654\uc131\uc774 \uc81c\ud55c\uc801\uc774\ubbc0\ub85c \uac00\ubcbc\uc6b4 \ud558\uc911\uc744 \uacac\ub38c\uc57c \ud558\ub294 \uc6a9\ub3c4\uc5d0 \uac00\uc7a5 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-case-hardening-vs-through-hardening\" class=\"wp-block-heading\">\ud45c\uba74 \uacbd\ud654 vs. \uc804\uccb4 \uacbd\ud654<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\uce21\uba74<\/th><th>\ud45c\uba74 \uacbd\ud654<\/th><th>\uacbd\ud654 \uacfc\uc815\uc744 \ud1b5\ud574<\/th><\/tr><\/thead><tbody><tr><td>\ud0c4\uc18c\uac15<\/td><td>0.10 ~ 0.25%<\/td><td>~0.30% \uc774\uc0c1<\/td><\/tr><tr><td>\ud45c\uba74 \uacbd\ub3c4<\/td><td>58~64 HRC<\/td><td>58~64 HRC (\uacf5\uad6c\uac15)<\/td><\/tr><tr><td>\ucf54\uc5b4 \uacbd\ub3c4<\/td><td>25~45 HRC<\/td><td>\ud45c\uba74\uacfc \ub3d9\uc77c<\/td><\/tr><tr><td>\ud575\uc2ec \uac15\ub3c4<\/td><td>\ub192\uc740<\/td><td>\ub192\uc740 \uacbd\ub3c4\uc5d0\uc11c \ub0ae\uc74c<\/td><\/tr><tr><td>\ub0b4\ub9c8\ubaa8\uc131<\/td><td>\ud45c\uba74 \uc804\uc6a9<\/td><td>\uc804\uccb4 \ub2e8\uba74\ub3c4<\/td><\/tr><tr><td>\ub9c8\ubaa8 \ud6c4<\/td><td>\ub0b4\ubd80 \uc5f0\uc57d\uce35\uc774 \ub178\ucd9c\ub418\uc5b4 \uc788\uc5b4 \ube60\ub974\uac8c \ud30c\uc190\ub429\ub2c8\ub2e4.<\/td><td>\uade0\uc77c\ud558\uac8c \ucc29\uc6a9\ud569\ub2c8\ub2e4<\/td><\/tr><tr><td>\ud53c\ub85c \uc800\ud56d\uc131<\/td><td>\uc555\ucd95 \ud45c\uba74 \uc751\ub825\uc73c\ub85c \uc778\ud574 \ud6cc\ub96d\ud569\ub2c8\ub2e4.<\/td><td>\uc88b\uc740<\/td><\/tr><tr><td>\ucc28\uc6d0 \ubcc0\ud654<\/td><td>\uc77c\ubd80\ub294 \ub2f4\uae08\uc9c8\uc5d0\uc11c \ube44\ub86f\ub429\ub2c8\ub2e4.<\/td><td>\uc7ac\uc9c8\uc5d0 \ub530\ub77c \ub2e4\ub974\uc9c0\ub9cc, \uacf5\uae30 \uacbd\ud654\ud615\uc740 \ubcc0\ud615\uc774 \uc801\uc2b5\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uce68\ud0c4 \ucc98\ub9ac\ub41c \ud45c\uba74\uc5d0 \ub0a8\uc740 \uc555\ucd95 \uc794\ub958 \uc751\ub825\uc740 \uad7d\ud798\uc774\ub098 \uad6c\ub984 \uc811\ucd09 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\ud488\uc5d0 \uc2e4\uc9c8\uc801\uc778 \uc774\uc810\uc744 \uc81c\uacf5\ud558\ub294\ub370, \uc774\ub294 \ud45c\uba74\uc5d0\uc11c\uc758 \ud53c\ub85c \uade0\uc5f4 \ubc1c\uc0dd\uc744 \uc5b5\uc81c\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-choosing-between-case-hardening-and-tool-steel\" class=\"wp-block-heading\">\ud45c\uba74 \uacbd\ud654\uac15\uacfc \uacf5\uad6c\uac15 \uc911 \uc120\ud0dd\ud558\uae30<\/h2>\n\n\n\n<h3 id=\"h-case-hardening-is-the-right-choice-when\" class=\"wp-block-heading\">\ud45c\uba74 \uacbd\ud654 \ucc98\ub9ac\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\uc6b0\uc5d0 \uc801\ud569\ud55c \uc120\ud0dd\uc785\ub2c8\ub2e4.<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ucda9\uaca9\uc774\ub098 \uad7d\ud798\uc744 \uacac\ub51c \uc218 \uc788\ub294 \uacac\uace0\ud55c \ucf54\uc5b4\uac00 \ud544\uc694\ud55c \ubd80\ud488\uc5d0\ub294 \uae30\uc5b4, \uc0e4\ud504\ud2b8 \ubc0f \ucea0\ucd95\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ub9c8\ubaa8\ub294 \ud45c\uba74\uc5d0\ub9cc \uad6d\ud55c\ub418\uba70, \ud574\ub2f9 \ubd80\ud488\uc740 \uc81c\ud55c\ub41c \uae4a\uc774\uc758 \ub9c8\ubaa8\ub97c \uacac\ub51c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uce68\ud0c4 \uacf5\uc815\uc740 \uace1\uba74\uc744 \ub530\ub77c \uc9c4\ud589\ub418\uc5b4 \uade0\uc77c\ud55c \ud45c\uba74\uc744 \ud615\uc131\ud558\uae30 \ub54c\ubb38\uc5d0 \ud615\uc0c1\uc774 \ubcf5\uc7a1\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uad7d\ud798 \ub610\ub294 \uc811\ucd09 \ud53c\ub85c \uc218\uba85\uc740 \ub9e4\uc6b0 \uc911\uc694\ud558\uba70, \uc555\ucd95 \ud45c\uba74 \uc751\ub825\uc740 \uc9c1\uc811\uc801\uc778 \uc774\uc810\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"h-through-hardened-tool-steel-is-the-right-choice-when\" class=\"wp-block-heading\">\uc644\uc804 \uacbd\ud654 \uacf5\uad6c\uac15\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\uc6b0\uc5d0 \uc801\ud569\ud55c \uc120\ud0dd\uc785\ub2c8\ub2e4.<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc774 \ubd80\ud488\uc740 \uc7ac\uc5f0\ub9c8\ub420 \uc808\uc0ad \uacf5\uad6c\uc774\ubbc0\ub85c \ub0a0\uc758 \uae4a\uc774 \ubc29\ud5a5\uc73c\ub85c \uc77c\uad00\ub41c \ud2b9\uc131\uc744 \uac00\uc838\uc57c \ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ub9c8\ubaa8\ub294 \ub450\uaebc\uc6b4 \ube14\ub7ad\ud0b9, \uc804\ub2e8 \ubc0f \uc555\ucd9c\uacfc \uac19\uc740 \uacf5\uc815\uc5d0\uc11c\ucc98\ub7fc \uc587\uc740 \ud45c\uba74\uc744 \ub118\uc5b4 \uce68\ud22c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uc608\ub97c \ub4e4\uc5b4 \ub2e4\uc774\uce90\uc2a4\ud305\uc5d0\uc11c\ub294 H13\uacfc \uac19\uc740 \ub192\uc740 \uace0\uc628 \uacbd\ub3c4\uac00 \uc694\uad6c\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ud380\uce58\ub098 \uc131\ud615 \ub2e4\uc774\ucc98\ub7fc \uc804\uccb4 \ub2e8\uba74\uc774 \uc18c\uc131 \ubcc0\ud615\uc5d0 \uc800\ud56d\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"h-why-case-hardening-cannot-replace-tool-steel-in-dies-and-cutting-tools\" class=\"wp-block-heading\">\ud45c\uba74 \uacbd\ud654 \ucc98\ub9ac\uac00 \uae08\ud615 \ubc0f \uc808\uc0ad \uacf5\uad6c\uc5d0\uc11c \uacf5\uad6c\uac15\uc744 \ub300\uccb4\ud560 \uc218 \uc5c6\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uba74 \uacbd\ud654 \ucc98\ub9ac\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 0.5~2mm \uc815\ub3c4\ub85c \uc595\uac8c \uc774\ub8e8\uc5b4\uc9d1\ub2c8\ub2e4. \uc774 \ud45c\uba74\uc774 \ub9c8\ubaa8\ub418\uba74 \uc5f0\uc9c8\uc758 \ub0b4\ubd80\uac00 \ub178\ucd9c\ub418\uc5b4 \ubd80\ud488\uc774 \ube60\ub974\uac8c \uc190\uc0c1\ub429\ub2c8\ub2e4. \uae08\ud615\uc740 \uc0ac\uc6a9 \uc218\uba85 \ub3d9\uc548 \uc5ec\ub7ec \ubc88 \uc7ac\uc5f0\ub9c8\ub418\ub294\ub370, \uc7ac\uc5f0\ub9c8\ud560 \ub54c\ub9c8\ub2e4 \uacbd\ud654\ub41c \uc7ac\ub8cc\uac00 \uc81c\uac70\ub418\ubbc0\ub85c \ud45c\uba74 \uacbd\ud654 \ucc98\ub9ac\ub41c \uae08\ud615\uc740 \uacb0\uad6d \uc5f0\uc9c8\uc758 \ub0b4\ubd80\uac00 \ub178\ucd9c\ub429\ub2c8\ub2e4. \uac8c\ub2e4\uac00 \uce68\ud0c4 \uacbd\ud654 \ucc98\ub9ac\ub41c \ud45c\uba74\uc758 \ub0b4\ub9c8\ubaa8\uc131\uc740 \uace0\ud0c4\uc18c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uc5d0\ub9cc \uc758\uc874\ud558\ub294 \ubc18\uba74, D2\uc640 \uac19\uc740 \ub4f1\uae09\uc740 \ubd80\ud53c \uae30\uc900\uc73c\ub85c \uc57d 12~18%\uc758 \uacbd\uc9c8 \ud06c\ub86c \uce74\ubc14\uc774\ub4dc\uac00 \uace0\ud568\ub7c9\uc73c\ub85c \ud568\uc720\ub418\uc5b4 \uc788\uc5b4 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ud6e8\uc52c \ub6f0\uc5b4\ub0a9\ub2c8\ub2e4. \uc808\uc0ad\ub0a0\uc758 \uacbd\uc6b0, \uad00\ud1b5 \uacbd\ud654 \uacf5\uad6c\uac15\uc758 \ub0a0 \uc720\uc9c0\ub825\uc740 \uc644\uc804\ud788 \ub2e4\ub978 \ucc28\uc6d0\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud45c\uba74 \uacbd\ud654\ub294 \uae30\uc5b4, \ucd95, \ubca0\uc5b4\ub9c1\uc5d0 \ub9e4\uc6b0 \uc801\ud569\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ube14\ub7ad\ud0b9 \ub2e4\uc774, \ud380\uce58, \uc131\ud615 \uacf5\uad6c, \uc808\uc0ad \uacf5\uad6c\uc640 \uac19\uc774 \uc804\uccb4 \uacbd\ud654\ub41c \uacf5\uad6c\uac15\uc774 \ud544\uc694\ud55c \uc81c\ud488\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-quality-control-for-case-hardened-parts\" class=\"wp-block-heading\">\ud45c\uba74 \uacbd\ud654 \ubd80\ud488\uc758 \ud488\uc9c8 \uad00\ub9ac<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uacbd\ud654\uce35 \uae4a\uc774: \ud45c\uba74\uc5d0\uc11c \uc911\uc2ec\ubd80\uae4c\uc9c0 \uacbd\ub3c4 \uce21\uc815\uc744 \ud558\uac70\ub098 \ud604\ubbf8\uacbd \uac80\uc0ac\ub97c \ud1b5\ud574 \uc9c0\uc815\ub41c \uc720\ud6a8 \uacbd\ud654\uce35 \uae4a\uc774\uc640 \ube44\uad50\ud558\uc5ec \uce21\uc815\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ud45c\uba74 \uacbd\ub3c4: \ub85c\ud06c\uc6f0 C \ub610\ub294 \ube44\ucee4\uc2a4 \uacbd\ub3c4(\uc9c0\uc815\ub41c \ud558\uc911 \uae30\uc900).<\/li>\n\n\n\n<li>\uc911\uc2ec\uacbd\ub3c4: \uc77c\ubc18\uc801\uc73c\ub85c \ubc18\uc9c0\ub984\uc758 \uc911\uac04 \uc9c0\uc810 \ub610\ub294 \uc911\uc2ec\ubd80\uc5d0\uc11c \uce21\uc815\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ubbf8\uc138\uad6c\uc870: \ucf00\uc774\uc2a4 \ub0b4 \ubbf8\uc138\ud55c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8, \uc5f0\uc18d\uc801\uc778 \uacb0\uc815\ub9bd\uacc4 \ud0c4\ud654\ubb3c \uc5c6\uc74c, \uadf8\ub9ac\uace0 \uc81c\uc5b4\ub41c \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8.<\/li>\n\n\n\n<li>\ubcc0\ud615: \uc5f4\ucc98\ub9ac \ud6c4 \uce58\uc218 \uac80\uc0ac.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-related-pages\" class=\"wp-block-heading\">\uad00\ub828 \ud398\uc774\uc9c0<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/aobosteel.com\/ko\/what-is-tool-steel\/\">\uacf5\uad6c\uac15\uc774\ub780 \ubb34\uc5c7\uc778\uac00<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-heat-treatment-guide\/\">\uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/s7-tool-steel\/\">S7 \ub0b4\ucda9\uaca9\uc131 \uacf5\uad6c\uac15<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/h13-tool-steel\/\">H13 \uacf5\uad6c\uac15<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/how-to-select-tool-steels\/\">\uacf5\uad6c\uac15 \ub4f1\uae09 \uc120\ud0dd \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Case Hardening Steel: Process, Grades, and When to Use It What Is Case Hardening? Case hardening is a group of surface treatments that produce a hard, wear-resistant outer layer (the &#8220;case&#8221;) over a tough, ductile core. The most common method is carburizing, which diffuses carbon into the surface of low-carbon steel. The related diffusion methods [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16030,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","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":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[22],"tags":[],"class_list":["post-16029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Case Hardening Steel Guide: Process and Uses - AoboSteel<\/title>\n<meta name=\"description\" content=\"How case hardening works, which low-carbon steels suit it, and when to choose carburizing over through-hardened tool steel for gears, shafts, and dies.\" \/>\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\/blog\/case-hardening-steel-guide\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Case Hardening Steel Guide: Process and Uses\" \/>\n<meta property=\"og:description\" content=\"How case hardening works, which low-carbon steels suit it, and when to choose carburizing over through-hardened tool steel for gears, shafts, and dies.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/blog\/case-hardening-steel-guide\/\" \/>\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:author\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-23T04:40:22+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-23T04:40:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif\" \/>\n\t<meta property=\"og:image:width\" content=\"1254\" \/>\n\t<meta property=\"og:image:height\" content=\"1254\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Evan\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@AobosteelEvan\" \/>\n<meta name=\"twitter:label1\" content=\"\uae00\uc4f4\uc774\" \/>\n\t<meta name=\"twitter:data1\" content=\"Evan\" \/>\n\t<meta name=\"twitter:label2\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data2\" content=\"6\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"Case Hardening Steel Guide: Process and Uses\",\"datePublished\":\"2026-06-23T04:40:22+00:00\",\"dateModified\":\"2026-06-23T04:40:23+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/\"},\"wordCount\":1115,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Case-Hardening-Steel.avif\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/\",\"name\":\"Case Hardening Steel Guide: Process and Uses - AoboSteel\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Case-Hardening-Steel.avif\",\"datePublished\":\"2026-06-23T04:40:22+00:00\",\"dateModified\":\"2026-06-23T04:40:23+00:00\",\"description\":\"How case hardening works, which low-carbon steels suit it, and when to choose carburizing over through-hardened tool steel for gears, shafts, and dies.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/#breadcrumb\"},\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/#primaryimage\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Case-Hardening-Steel.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/Case-Hardening-Steel.avif\",\"width\":1254,\"height\":1254},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/blog\\\/case-hardening-steel-guide\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Case Hardening Steel Guide: Process and Uses\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"name\":\"AoboSteel\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/aobosteel.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ko-KR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\",\"name\":\"AoboSteel\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"width\":1052,\"height\":592,\"caption\":\"AoboSteel\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\",\"name\":\"Evan\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"caption\":\"Evan\"},\"sameAs\":[\"http:\\\/\\\/www.aobosteel.com\",\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.instagram.com\\\/aobosteel\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\",\"https:\\\/\\\/x.com\\\/AobosteelEvan\",\"https:\\\/\\\/www.youtube.com\\\/@aobosteel\"],\"url\":\"https:\\\/\\\/aobosteel.com\\\/ko\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\ud45c\uba74 \uacbd\ud654\uac15 \uac00\uc774\ub4dc: \uacf5\uc815 \ubc0f \uc6a9\ub3c4 - AoboSteel","description":"\ud45c\uba74 \uacbd\ud654\uc758 \uc6d0\ub9ac, \uc801\ud569\ud55c \uc800\ud0c4\uc18c\uac15, \uadf8\ub9ac\uace0 \uae30\uc5b4, \ucd95, \uae08\ud615\uc5d0 \ub300\ud574 \uacf5\uad6c\uac15 \uc804\uccb4 \uacbd\ud654 \ub300\uc2e0 \uce68\ud0c4 \ucc98\ub9ac\ub97c \uc120\ud0dd\ud574\uc57c \ud558\ub294 \uacbd\uc6b0\uc5d0 \ub300\ud574 \uc54c\uc544\ubd05\ub2c8\ub2e4.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/aobosteel.com\/ko\/blog\/case-hardening-steel-guide\/","og_locale":"ko_KR","og_type":"article","og_title":"Case Hardening Steel Guide: Process and Uses","og_description":"How case hardening works, which low-carbon steels suit it, and when to choose carburizing over through-hardened tool steel for gears, shafts, and dies.","og_url":"https:\/\/aobosteel.com\/ko\/blog\/case-hardening-steel-guide\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_author":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_published_time":"2026-06-23T04:40:22+00:00","article_modified_time":"2026-06-23T04:40:23+00:00","og_image":[{"width":1254,"height":1254,"url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif","type":"image\/png"}],"author":"Evan","twitter_card":"summary_large_image","twitter_creator":"@AobosteelEvan","twitter_misc":{"\uae00\uc4f4\uc774":"Evan","\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"6\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"Case Hardening Steel Guide: Process and Uses","datePublished":"2026-06-23T04:40:22+00:00","dateModified":"2026-06-23T04:40:23+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/"},"wordCount":1115,"commentCount":0,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"image":{"@id":"https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif","articleSection":["Blog"],"inLanguage":"ko-KR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/","url":"https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/","name":"\ud45c\uba74 \uacbd\ud654\uac15 \uac00\uc774\ub4dc: \uacf5\uc815 \ubc0f \uc6a9\ub3c4 - AoboSteel","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/#primaryimage"},"image":{"@id":"https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif","datePublished":"2026-06-23T04:40:22+00:00","dateModified":"2026-06-23T04:40:23+00:00","description":"\ud45c\uba74 \uacbd\ud654\uc758 \uc6d0\ub9ac, \uc801\ud569\ud55c \uc800\ud0c4\uc18c\uac15, \uadf8\ub9ac\uace0 \uae30\uc5b4, \ucd95, \uae08\ud615\uc5d0 \ub300\ud574 \uacf5\uad6c\uac15 \uc804\uccb4 \uacbd\ud654 \ub300\uc2e0 \uce68\ud0c4 \ucc98\ub9ac\ub97c \uc120\ud0dd\ud574\uc57c \ud558\ub294 \uacbd\uc6b0\uc5d0 \ub300\ud574 \uc54c\uc544\ubd05\ub2c8\ub2e4.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/#breadcrumb"},"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/"]}]},{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/#primaryimage","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif","width":1254,"height":1254},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/blog\/case-hardening-steel-guide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"Case Hardening Steel Guide: Process and Uses"}]},{"@type":"WebSite","@id":"https:\/\/aobosteel.com\/#website","url":"https:\/\/aobosteel.com\/","name":"\uc544\uc624\ubcf4\uc2a4\ud2f8","description":"","publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/aobosteel.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ko-KR"},{"@type":"Organization","@id":"https:\/\/aobosteel.com\/#organization","name":"\uc544\uc624\ubcf4\uc2a4\ud2f8","url":"https:\/\/aobosteel.com\/","logo":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","width":1052,"height":592,"caption":"AoboSteel"},"image":{"@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/"]},{"@type":"Person","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7","name":"\uc5d0\ubc18","image":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","caption":"Evan"},"sameAs":["http:\/\/www.aobosteel.com","https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.instagram.com\/aobosteel\/","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/","https:\/\/x.com\/AobosteelEvan","https:\/\/www.youtube.com\/@aobosteel"],"url":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel-300x300.avif",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel-768x768.avif",768,768,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel-12x12.avif",12,12,true]},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"uagb_comment_info":9,"uagb_excerpt":"Case Hardening Steel: Process, Grades, and When to Use It What Is Case Hardening? Case hardening is a group of surface treatments that produce a hard, wear-resistant outer layer (the &#8220;case&#8221;) over a tough, ductile core. The most common method is carburizing, which diffuses carbon into the surface of low-carbon steel. The related diffusion methods&hellip;","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif",1254,1254,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif",1254,1254,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Case-Hardening-Steel-12x12.avif",12,12,true]},"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":9,"rttpg_category":"<a href=\"https:\/\/aobosteel.com\/ko\/blog\/category\/blog\/\" rel=\"category tag\">Blog<\/a>","rttpg_excerpt":"Case Hardening Steel: Process, Grades, and When to Use It What Is Case Hardening? Case hardening is a group of surface treatments that produce a hard, wear-resistant outer layer (the &#8220;case&#8221;) over a tough, ductile core. The most common method is carburizing, which diffuses carbon into the surface of low-carbon steel. The related diffusion methods&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/posts\/16029","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"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=16029"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/posts\/16029\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media\/16030"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=16029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/categories?post=16029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/tags?post=16029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}