{"id":16713,"date":"2026-07-17T18:29:00","date_gmt":"2026-07-17T10:29:00","guid":{"rendered":"https:\/\/aobosteel.com\/?p=16713"},"modified":"2026-07-19T16:07:39","modified_gmt":"2026-07-19T08:07:39","slug":"esr-d2-1-2379-precision-blades","status":"publish","type":"post","link":"https:\/\/aobosteel.com\/ko\/blog\/esr-d2-1-2379-precision-blades\/","title":{"rendered":"\uc815\ubc00 \uc0b0\uc5c5\uc6a9 \ube14\ub808\uc774\ub4dc\uc5d0 ESR D2(1.2379)\uac00 \uc9c0\uc815\ub418\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?"},"content":{"rendered":"<h1 id=\"h-why-esr-d2-1-2379-is-specified-for-precision-industrial-blades\" class=\"wp-block-heading\">\uc815\ubc00 \uc0b0\uc5c5\uc6a9 \ube14\ub808\uc774\ub4dc\uc5d0 ESR D2(1.2379)\uac00 \uc9c0\uc815\ub418\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?<\/h1>\n\n\n\n<h2 id=\"h-a-recurring-order-pattern-worth-explaining\" class=\"wp-block-heading\">\uc124\uba85\ud560 \uac00\uce58\uac00 \uc788\ub294 \ubc18\ubcf5\uc801\uc778 \uc8fc\ubb38 \ud328\ud134<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud55c \uac00\uc9c0 \uc8fc\ubb38 \ud328\ud134\uc774 \ub108\ubb34\ub098 \ub69c\ub837\ud558\uac8c \ub208\uc5d0 \ub744\uc5b4 \uc124\uba85\uc774 \ud544\uc694\ud588\uc2b5\ub2c8\ub2e4. \ube0c\ub77c\uc9c8 \uc0c1\ud30c\uc6b8\ub8e8\uc5d0 \uc788\ub294 \uc808\uc0ad \uacf5\uad6c \uc81c\uc870\uc5c5\uccb4\ub294 \uc57c\uae08, \ud50c\ub77c\uc2a4\ud2f1, \uc12c\uc720, \uace0\ubb34, \uc2dd\ud488 \ubc0f \ud3ec\uc7a5 \uc0b0\uc5c5 \uc804\ubc18\uc5d0 \uac78\uccd0 \uc6d0\ud615 \ube14\ub808\uc774\ub4dc, \uc2ac\ub9ac\ud130 \ub098\uc774\ud504 \ubc0f \uc804\ub2e8 \ube14\ub808\uc774\ub4dc\ub97c \uacf5\uae09\ud558\ub294\ub370, \uc774 \uc5c5\uccb4\ub294 \uc5ec\ub7ec \uac74\uc758 \uc8fc\ubb38\uc744 \ub123\uc5c8\uc2b5\ub2c8\ub2e4. <a href=\"https:\/\/aobosteel.com\/ko\/d2-tool-steel\/\" data-type=\"link\" data-id=\"https:\/\/aobosteel.com\/d2-tool-steel\/\">D2 (1.2379)<\/a> \uc9c0\ub09c 2\ub144\uac04 \uc800\ud76c\uc5d0\uac8c \uc8fc\ubb38\ud558\uc2e0 \ub0b4\uc5ed\uc785\ub2c8\ub2e4. \ubaa8\ub4e0 \uc8fc\ubb38 \ub0b4\uc5ed\uc774 \uba85\uc2dc\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<a href=\"https:\/\/aobosteel.com\/ko\/esr-tool-steel\/\"> \uc804\ud574\uc2ac\ub798\uadf8 \uc7ac\uc6a9\uc735(ESR) \uc7ac\ub8cc<\/a>. \uad6c\ub9e4\uc790\ub294 \ub354 \ub0ae\uc740 \uac00\uaca9\uacfc \ub354 \uc9e7\uc740 \ub0a9\uae30\ub97c \uc81c\uc2dc\ubc1b\uc558\uc74c\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0, \uae30\uc874\uc758 \ubc29\uc2dd\uc73c\ub85c \uc8fc\uc870\ub41c \ud45c\uc900 D2 \uac15\uc7ac\ub97c \ub300\uccb4\ud488\uc73c\ub85c \ubc1b\uc544\ub4e4\uc774\ub294 \uac83\uc744 \ub2e8 \ud55c \ubc88\ub3c4 \uac70\ubd80\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uacf5\uae09\uc5c5\uccb4 \uc785\uc7a5\uc5d0\uc11c \uc774\ucc98\ub7fc \ubc18\ubcf5\uc801\uc774\uace0 \uc758\ub3c4\uc801\uc778 \uc0ac\uc591\uc740 \ub2e8\uc21c\ud788 \uc774\ud589\ud558\ub294 \uac83\ubcf4\ub2e4 \uc870\uc0ac\ud574 \ubcfc \uac00\uce58\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uad6c\ub9e4\uc790\uac00 \ud45c\uc900 D2 \uac15\uc7ac \uc0dd\uc0b0 \uacfc\uc815\uc5d0\uc11c \uc774\ubbf8 \ubaa8\uc11c\ub9ac \uae68\uc9d0, \uc5f4\ucc98\ub9ac \ud6c4 \uacbd\ub3c4 \ubd88\uade0\uc77c, \uc5f0\ub9c8 \uacf5\uc815 \uc2e4\ud328 \ub4f1\uc758 \ubb38\uc81c\uc810\uc744 \uacbd\ud5d8\ud588\uace0, ESR \ud504\ub9ac\ubbf8\uc5c4\uc744 \uc9c0\ubd88\ud558\ub294 \uac83\uc774 \uc774\ub7ec\ud55c \uc2e4\ud328\ub97c \ubc18\ubcf5\ud558\ub294 \uac83\ubcf4\ub2e4 \uc800\ub834\ud558\ub2e4\uace0 \ud310\ub2e8\ud588\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \uc774\ub7ec\ud55c \ud328\ud134\uc744 \uc5ed\uc73c\ub85c \uc0b4\ud3b4\ubd05\ub2c8\ub2e4. ESR\uc740 D2 \uac15\uc7ac\uc5d0 \uc2e4\uc81c\ub85c \uc5b4\ub5a4 \ubcc0\ud654\ub97c \uac00\uc838\uc624\uba70, \uc5b4\ub5a4 \uc870\uac74\uc5d0\uc11c \uadf8 \ubcc0\ud654\uac00 \uad6c\ub9e4 \uc8fc\ubb38\uc11c\uc5d0 \uba85\uc2dc\ud560 \ub9cc\ud07c \uc911\uc694\ud55c \uc758\ubbf8\ub97c \uac16\ub294\uc9c0 \ubd84\uc11d\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-the-problem-why-standard-d2-fails-in-thin-edge-applications\" class=\"wp-block-heading\">\ubb38\uc81c\uc810: \ud45c\uc900 D2\uac00 \uc587\uc740 \uc5e3\uc9c0 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \uc2e4\ud328\ud558\ub294 \uc774\uc720<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc720\ub7fd\uc5d0\uc11c DIN \uaddc\uaca9 1.2379\ub85c \uc54c\ub824\uc9c4 \ud45c\uc900 AISI D2\ub294 \ub0b4\ub9c8\ubaa8\uc131, \ub192\uc740 \ub2f4\uae08\uc9c8 \uacbd\ub3c4 \ubc0f \uce58\uc218 \uc548\uc815\uc131\uc774 \ub6f0\uc5b4\ub09c \uace0\ud0c4\uc18c, \uace0\ud06c\ub86c \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uac15\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud2b9\uc131 \ub355\ubd84\uc5d0 D2\ub294 \uc218\uc2ed \ub144 \ub3d9\uc548 \ub300\ub7c9 \uc0dd\uc0b0\uc6a9 \uc2a4\ud0ec\ud551 \uae08\ud615, \ud380\uce58 \ubc0f \uc804\ub2e8 \uacf5\uad6c\uc5d0 \uae30\ubcf8\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\uc5b4 \uc654\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ud45c\uc900 D2\ub294 \ud2b9\uc815 \ud615\uc0c1\uc5d0\uc11c\ub9cc \ub4dc\ub7ec\ub098\ub294 \uad6c\uc870\uc801 \ud55c\uacc4, \uc989 \ub0ae\uc740 \ud30c\uad34 \uc778\uc131\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc778\uc7a5 \ub610\ub294 \uc555\ucd95 \ud558\uc911\uc744 \ubc1b\uc744 \ub54c D2\ub294 \ud30c\uad34\ub418\uae30 \uc804\uae4c\uc9c0 \uac70\uc758 \uc18c\uc131 \ubcc0\ud615\uc774 \uc77c\uc5b4\ub098\uc9c0 \uc54a\uc544, \ub354 \ub192\uc740 \uc778\uc131\uc744 \uac00\uc9c4 \ud569\uae08\uc5d0\uc11c \uad00\ucc30\ub418\ub294 \uc5f0\uc131 \ub124\ud0b9 \ud604\uc0c1\uc774 \uc544\ub2cc \ud3c9\ud3c9\ud55c \ud30c\uad34\uba74\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc815\ubc00 \uc808\uc0ad\ub0a0, \uc2ac\ub9ac\ud130 \ube14\ub808\uc774\ub4dc \ub610\ub294 \ub0a0\uce74\ub86d\uace0 \ubaa8\uc11c\ub9ac\uac00 \ub465\uae00\uc9c0 \uc54a\uc740 \uacf5\uad6c\uc640 \uac19\uc774 \uc587\uc740 \ubaa8\uc11c\ub9ac\uac00 \ud544\uc694\ud55c \uc6a9\ub3c4\uc5d0\uc11c\ub294 \uc774\ub7ec\ud55c \ud55c\uacc4\uac00 \uc8fc\uc694 \ud30c\uc190 \uc6d0\uc778\uc774 \ub429\ub2c8\ub2e4. \uc791\ub3d9 \uc751\ub825\uc740 \uc774\ub7ec\ud55c \ub0a0\uce74\ub85c\uc6b4 \uae30\ud558\ud559\uc801 \uc804\ud658\ubd80\uc5d0 \uc9d1\uc911\ub429\ub2c8\ub2e4. \uc7ac\ub8cc\uac00 \uc18c\uc131 \ubcc0\ud615\uc744 \ud1b5\ud574 \uc751\ub825\uc744 \ud574\uc18c\ud560 \uc218 \uc5c6\uae30 \ub54c\ubb38\uc5d0 \ub0b4\ubd80 \uacb0\ud568\uc5d0\uc11c \ubbf8\uc138 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\uace0 \ud15c\ud37c\ub9c1\ub41c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uae30\uc9c0\ub97c \ud1b5\ud574 \ube60\ub974\uac8c \uc804\ud30c\ub418\uc5b4 \ubaa8\uc11c\ub9ac \ud30c\uc190 \ubc0f \uacf5\uad6c \uc218\uba85\uc758 \uae09\uaca9\ud55c \uac10\uc18c\ub97c \ucd08\ub798\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-carbide-segregation-and-chipping-at-the-cutting-edge\" class=\"wp-block-heading\">\uc808\uc0ad\ub0a0\uc5d0\uc11c\uc758 \ud0c4\ud654\ubb3c \ud3b8\uc11d \ubc0f \ud30c\ud3b8 \ubc1c\uc0dd<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub7ec\ud55c \ud30c\uc190 \ubaa8\ub4dc\uc758 \uadfc\ubcf8 \uc6d0\uc778\uc740 \uc8fc\uad34 \uc751\uace0 \uacfc\uc815\uc5d0\uc11c \ud569\uae08 \uc6d0\uc18c\uc640 \ud0c4\ud654\ubb3c\uc774 \ubd84\ub9ac\ub418\ub294 \ud604\uc0c1\uc785\ub2c8\ub2e4. \uae30\uc874 \ubc29\uc2dd\uc73c\ub85c \uc8fc\uc870\ub41c \uace0\ud569\uae08\uac15\uc5d0\uc11c\ub294 \ud0c4\uc18c, \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374, \ubc14\ub098\ub4d0\uc774 \uc131\uc7a5\ud558\ub294 \uc218\uc9c0\uc0c1 \uacb0\uc815 \uc0ac\uc774\uc5d0\uc11c \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uc751\uace0\ub418\ub294 \uc561\uccb4 \uc0c1\ud0dc\uc5d0 \uc9d1\uc911\ub418\uc5b4, \uac70\uce60\uace0 \ucde8\uc131\uc774 \uac15\ud55c 1\ucc28 \uacf5\uc735 M7C3 \ud0c4\ud654\ubb3c \ub124\ud2b8\uc6cc\ud06c\ub97c \ud615\uc131\ud569\ub2c8\ub2e4. \uc5f4\uac04 \uac00\uacf5\uc740 \uc774\ub7ec\ud55c \ud0c4\ud654\ubb3c\uc744 \uc6a9\ud574\uc2dc\ud0a4\uc9c0 \uc54a\uace0, \uc555\uc5f0 \ubc29\ud5a5\uacfc \ud3c9\ud589\ud558\uac8c \ubc30\uc5f4\ub41c \uc2a4\ud2b8\ub9c1\uac70\uc640 \ubc34\ub4dc \ud615\ud0dc\ub85c \uae38\uac8c \ub298\uc5ec \ucd5c\uc885 \ubd09\uc5d0 \uae30\uacc4\uc801 \uc774\ubc29\uc131\uc744 \uc720\ubc1c\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"559\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/Photomicrograph-of-conventional-D2-tool-steel-50x-2.png\" alt=\"\" class=\"wp-image-16761\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/Photomicrograph-of-conventional-D2-tool-steel-50x-2.png 800w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/Photomicrograph-of-conventional-D2-tool-steel-50x-2-300x210.png 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/Photomicrograph-of-conventional-D2-tool-steel-50x-2-768x537.png 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/Photomicrograph-of-conventional-D2-tool-steel-50x-2-18x12.png 18w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"><em>\uc77c\ubc18\uc801\uc778 D2 \uacf5\uad6c\uac15\uc758 \ud604\ubbf8\uacbd \uc0ac\uc9c4(50\ubc30). \ubc1d\uc740 \uc785\uc790\ub294 \uc555\uc5f0 \ubc29\ud5a5\uc744 \ub530\ub77c \ub69c\ub837\ud55c \ub760 \ubaa8\uc591\uc73c\ub85c \uae38\uac8c \ub298\uc5b4\uc9c4 1\ucc28 \ud0c4\ud654\ubb3c\uc774\uba70, \ub0a0\uce74\ub85c\uc6b4 \uc808\uc0ad\ub0a0\uc5d0\uc11c \ub0b4\ubd80 \uc751\ub825 \uc9d1\uc911\uc810\uc73c\ub85c \uc791\uc6a9\ud569\ub2c8\ub2e4.<\/em><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ub0a0\uce74\ub85c\uc6b4 \uc808\uc0ad\ub0a0\uc5d0\uc11c \uc774\ub7ec\ud55c \ubd88\uade0\uc77c\ud55c \ubbf8\uc138\uad6c\uc870\ub294 \uc790\uac00 \uac15\ud654\uc801\uc778 \ud30c\uc190 \uacfc\uc815\uc744 \ucd08\ub798\ud569\ub2c8\ub2e4. \uc870\ub300\ud55c \ud0c4\ud654\ubb3c \ub369\uc5b4\ub9ac\ub294 \ud30c\uad34 \uac15\ub3c4\uac00 \ub0ae\uc544 \ub0b4\ubd80 \uc751\ub825 \uc9d1\uc911\uc810\uc73c\ub85c \uc791\uc6a9\ud558\uba70, \ubc18\ubcf5 \ud558\uc911\uc774\ub098 \ud6a1\ubc29\ud5a5 \ud558\uc911\uc744 \ubc1b\uc744 \ub54c \ubbf8\uc138 \uade0\uc5f4\uc744 \ubc1c\uc0dd\uc2dc\ud0b5\ub2c8\ub2e4. \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\uba74 \ud3b8\uc11d\ub41c \ud0c4\ud654\ubb3c \ub124\ud2b8\uc6cc\ud06c\ub97c \ub530\ub77c \uc9c4\ud589\ud558\uba74\uc11c \uc808\uc0ad\ub0a0\uc5d0 \uad6d\ubd80\uc801\uc778 \ubbf8\uc138 \ud30c\uc190\uc744 \uc77c\uc73c\ud0b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubbf8\uc138 \ud30c\uc190\uc740 \uc808\uc0ad\ub0a0\uc744 \ubb34\ub514\uac8c \ub9cc\ub4e4\uace0, \uc808\uc0ad\ub825\uacfc \ub9c8\ucc30\uc5f4\uc744 \uc99d\uac00\uc2dc\ucf1c \ub9c8\ubaa8\ub97c \uac00\uc18d\ud654\ud558\uace0 \uacf5\uad6c \uc218\uba85\uc744 \ub354\uc6b1 \ub2e8\ucd95\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub450 \uac00\uc9c0 \uc815\ub828 \ubc29\uc2dd\uc774 \uc774\ub7ec\ud55c \ud3b8\uc11d \ubb38\uc81c\ub97c \uc9c1\uc811\uc801\uc73c\ub85c \ud574\uacb0\ud569\ub2c8\ub2e4. \ubc14\ub85c \uc804\ud574\uc2ac\ub798\uadf8 \uc7ac\uc6a9\uc735(ESR)\uacfc \ubd84\ub9d0 \uc57c\uae08\uc785\ub2c8\ub2e4. \ubd84\ub9d0 \uc57c\uae08\uc740 \ud569\uae08\uc744 \uc751\uace0 \uc804\uc5d0 \ubbf8\uc138\ud55c \uc785\uc790\ub85c \ubd84\ubb34\ud558\uc5ec \uac00\uc7a5 \uade0\uc77c\ud55c \ud0c4\ud654\ubb3c \ubd84\uc0b0\uc744 \uc5bb\uc744 \uc218 \uc788\uc9c0\ub9cc, \ube44\uc6a9\uacfc \ub0a9\uae30\uac00 \ub192\uc544 \ub300\ubd80\ubd84\uc758 \uc2a4\ud0ec\ud551 \ubc0f \uc2ac\ub9ac\ud305 \ud234\ub9c1\uc5d0\ub294 \uc801\uc6a9\ud558\uae30 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. ESR\uc740 \ud45c\uc900 \uc8fc\uad34 \uc8fc\uc870\uc640 \ubd84\ub9d0 \uc57c\uae08\uc758 \uc911\uac04 \ub2e8\uacc4\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. \ubd84\ubb34\ucc98\ub7fc 1\ucc28 \ud0c4\ud654\ubb3c\uc744 \uc644\uc804\ud788 \uc81c\uac70\ud558\uc9c0\ub294 \uc54a\uc9c0\ub9cc, \uc55e\uc11c \uc124\uba85\ud55c \ud3b8\uc11d\uc73c\ub85c \uc778\ud55c \ud30c\uc190\uc744 \ubc29\uc9c0\ud560 \ub9cc\ud07c \ucda9\ubd84\ud788 \uc815\ub828\ud558\uace0 \ubd84\uc0b0\uc2dc\ud0a4\uba70, \ube44\uc6a9\ub3c4 \ud6e8\uc52c \uc800\ub834\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc7a5\ub2e8\uc810 \ub54c\ubb38\uc5d0 \uc587\uc740 \ubaa8\uc11c\ub9ac \uac00\uacf5 \ubd84\uc57c\uc5d0\uc11c \ub300\ubd80\ubd84\uc758 \uad6c\ub9e4\uc790\ub4e4\uc774 \ubd84\ub9d0 \uc57c\uae08\ubcf4\ub2e4 ESR\uc744 \uc120\ud638\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-inconsistent-hardness-after-heat-treatment\" class=\"wp-block-heading\">\uc5f4\ucc98\ub9ac \ud6c4 \uacbd\ub3c4 \ubd88\uade0\uc77c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5f4\ucc98\ub9ac \uc5c5\uccb4\ub294 \ud45c\uc900 D2\ub97c \uac00\uacf5\ud560 \ub54c \uc138 \uac00\uc9c0 \uad00\ub828 \ubb38\uc81c\ub85c \uc778\ud574 \uacbd\ub3c4\uac00 \uc77c\uc815\ud558\uc9c0 \uc54a\uc740 \ud604\uc0c1\uc744 \uc790\uc8fc \ubaa9\uaca9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub9cc\ud07c <a href=\"https:\/\/aobosteel.com\/ko\/d2-austenitizing-temperature\/\">\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ucc3d<\/a> \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ubcc0\ud0dc \uc2dc\uc791 \uc628\ub3c4 \ubc94\uc704\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 995\u00b0C~1030\u00b0C(1827\u00b0F~1888\u00b0F)\ub85c \uc881\uc2b5\ub2c8\ub2e4. \uc774 \ubc94\uc704 \uc544\ub798\uc5d0\uc11c\ub294 \ud569\uae08 \ud0c4\ud654\ubb3c\uc774 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc5d0 \uc644\uc804\ud788 \uc6a9\ud574\ub418\uc9c0 \uc54a\uc544 \ub2f4\uae08\uc9c8 \uc2dc \uc644\uc804\ud55c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc774 \ubc94\uc704 \uc704\uc5d0\uc11c\ub294 \uacfc\ub3c4\ud55c \ud0c4\ud654\ubb3c \uc6a9\ud574\ub85c \uc778\ud574 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uac00 \ud0c4\uc18c\uc640 \ud06c\ub86c\uc73c\ub85c \uacfc\ud3ec\ud654\ub418\uc5b4 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ubcc0\ud0dc \uc2dc\uc791 \uc628\ub3c4\uac00 \ub0ae\uc544\uc9c0\uace0, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uac00 \uc815\uc0c1 \uc218\uc900\ubcf4\ub2e4 \ud6e8\uc52c \ub192\uc544\uc9c0\uba70, \uacb0\uc815\ub9bd \uc870\ub300\ud654\uac00 \ucd09\uc9c4\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub294 \uc5f0\uc9c8\uc774\uba70 \uc5f4\uc5ed\ud559\uc801\uc73c\ub85c \ubd88\uc548\uc815\ud569\ub2c8\ub2e4. \ud558\uc911\uc744 \ubc1b\uac70\ub098 \uc2dc\uac04\uc774 \uc9c0\ub0a8\uc5d0 \ub530\ub77c \uc0c1\uc628\uc5d0\uc11c \ubbf8\ucc98\ub9ac \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub85c \ubcc0\ud0dc\ub420 \uc218 \uc788\uc73c\uba70, \uc774\ub85c \uc778\ud574 \uc608\uc0c1\uce58 \ubabb\ud55c \uacbd\ub3c4 \ubcc0\ud654, \uc794\ub958 \uc751\ub825 \ubc0f \uce58\uc218 \ud33d\ucc3d\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. D2\uac15\uc740 \uc774\ub7ec\ud55c \uc774\uc720\ub85c \uc774\uc911 \ud15c\ud37c\ub9c1\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ucd5c\uc18c 2\uc2dc\uac04 \ub3d9\uc548 \uc720\uc9c0\ud558\uace0, \ub450\uaebc\uc6b4 \ub2e8\uba74\uc758 \uacbd\uc6b0 \ucd94\uac00 \uc2dc\uac04\uc744 \ub354\ud55c \ud6c4, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \uc644\uc804\ud788 \ubcc0\ud0dc\uc2dc\ud0a4\uace0 \uc0c8\ub85c \uc0dd\uc131\ub41c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uc758 \uc751\ub825\uc744 \ud574\uc18c\ud558\uae30 \uc704\ud574 \ub450 \ubc88\uc9f8 \ud15c\ud37c\ub9c1\uc744 \ubc18\ubcf5\ud569\ub2c8\ub2e4. \uc774 \ud15c\ud37c\ub9c1 \uacfc\uc815\uc744 \uc0dd\ub7b5\ud558\uac70\ub098 \ub2e8\ucd95\ud558\ub294 \uac83\uc740 \ud604\uc7a5 \uacbd\ub3c4\uc758 \ubd88\uc77c\uce58\ub97c \ucd08\ub798\ud558\ub294 \uc77c\ubc18\uc801\uc778 \uc6d0\uc778\uc774\uba70, \uc774\ub294 \uac15\uc7ac \uc790\uccb4\uc758 \ubb38\uc81c\ub77c\uae30\ubcf4\ub2e4\ub294 \uacf5\uc815 \uad00\ub9ac\uc758 \ubb38\uc81c\uc785\ub2c8\ub2e4. \uc870\ub300\ud558\uace0 \ud3b8\uc11d\ub41c \ud0c4\ud654\ubb3c\uc740 \uc560\ucd08\uc5d0 \ud5c8\uc6a9 \uac00\ub2a5\ud55c \uacf5\uc815 \ubc94\uc704\ub97c \uc881\ud788\ub294\ub370, \uc774 \ubd80\ubd84\uc5d0\uc11c \uc6a9\uc735 \uacf5\uc815\uc774 \uc911\uc694\ud574\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc6a9\uad11\ub85c \ubd84\uc704\uae30\uac00 \uc644\uc804\ud788 \ubcf4\ud638\ub418\uc9c0 \uc54a\uc73c\uba74 \uc0b0\uc18c\uac00 \ud45c\uba74 \ud0c4\uc18c\uc640 \ubc18\uc751\ud558\uc5ec \ud0c8\ud0c4\ub41c \uc5f0\uc9c8 \ud398\ub77c\uc774\ud2b8 \ub610\ub294 \ud384\ub77c\uc774\ud2b8 \uce35\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc774 \uce35\uc740 \ub2f4\uae08\uc9c8 \uc2dc \uace0\uacbd\ub3c4 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub97c \ud615\uc131\ud560 \uc218 \uc5c6\uc73c\ubbc0\ub85c \uc5f0\uc9c8 \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud558\uace0 \ub9c8\ubaa8\uac00 \ube60\ub974\uba70 \ub2f4\uae08\uc9c8 \uade0\uc5f4\uc744 \uc720\ubc1c\ud560 \uc218 \uc788\ub294 \uc794\ub958 \uc778\uc7a5 \uc751\ub825\uc744 \ubcf4\uc720\ud558\uac8c \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-surface-defects-after-polishing\" class=\"wp-block-heading\">\uc5f0\ub9c8 \ud6c4 \ud45c\uba74 \uacb0\ud568<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uac70\uc6b8\ucc98\ub7fc \ub9e4\ub044\ub7ec\uc6b4 \ub9c8\uac10\uc744 \uc5bb\ub294 \uac83\uc740 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. <a href=\"https:\/\/aobosteel.com\/ko\/blog\/plastic-injection-mold-steel-selection\/\">\ud50c\ub77c\uc2a4\ud2f1 \uc0ac\ucd9c \uae08\ud615<\/a> \uc815\ubc00 \uc2a4\ud0ec\ud551 \ub2e4\uc774 \uc81c\uc791\uc5d0\ub294 \uacf5\uad6c\uac15\uc758 \uc815\ubc00\ud55c \uae30\uacc4\uc801 \uc5f0\ub9c8\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \ud45c\uc900 D2\uc758 \uc774\uc9c8\uc801\uc778 \ubbf8\uc138 \uad6c\uc870\ub294 \uc138 \uac00\uc9c0 \ubd84\uba85\ud55c \ubc29\uc2dd\uc73c\ub85c \uc774\ub7ec\ud55c \ubb38\uc81c\ub97c \uc644\ud654\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8, \ud0c8\ud0c4 \ub610\ub294 \ud15c\ud37c\ub9c1 \ubd80\uc871\uc73c\ub85c \uc778\ud574 \ubc1c\uc0dd\ud558\ub294 \uad6d\ubd80\uc801\uc778 \uc5f0\uc9c8 \ubd80\uc704\ub294 \uc5f0\ub9c8 \uc555\ub825 \ud558\uc5d0\uc11c \ubd88\uade0\uc77c\ud558\uac8c \ubcc0\ud615\ub418\uc5b4 \uc624\ub80c\uc9c0 \uaecd\uc9c8\ucc98\ub7fc \uc6b8\ud241\ubd88\ud241\ud55c \ud45c\uba74 \uc9c8\uac10\uc744 \ub0a8\uae41\ub2c8\ub2e4. \uc8fc\ubcc0 \uae30\uc9c0\ubcf4\ub2e4 \ud6e8\uc52c \ub2e8\ub2e8\ud55c 1\ucc28 M7C3 \ud0c4\ud654\ubb3c\uc740 \uc5f0\ub9c8\ub825\uc5d0 \uc758\ud574 \uc644\uc804\ud788 \uc81c\uac70\ub418\uc5b4 \ud540\ud640\uc774\ub77c\uace0 \ud558\ub294 \ubbf8\uc138\ud55c \uad6c\uba4d\uc744 \ub0a8\uae38 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, \ub5a8\uc5b4\uc838 \ub098\uc628 \ub2e8\ub2e8\ud55c \uc785\uc790\uac00 \uc5f0\ub9c8 \ud328\ub4dc\uc5d0\uc11c \uc644\uc804\ud788 \ub5a8\uc5b4\uc838 \ub098\uac00\uc9c0 \uc54a\uace0 \ucc9c \uc544\ub798\uc5d0 \uac07\ud600 \ud45c\uba74\uc744 \ub04c\uba74\uc11c \ub5a8\uc5b4\uc838 \ub098\uc628 \ubd80\uc704 \uc606\uc5d0 \ub208\uc5d0 \ub744\ub294 \uc120\ud615 \uae01\ud798 \uc790\uad6d\uc744 \ub0a8\uae30\ub294\ub370, \uc774\ub97c \ud61c\uc131 \uaf2c\ub9ac\ub77c\uace0 \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uc138 \uac00\uc9c0 \uacb0\ud568\uc740 \ubaa8\ub450 \ub3d9\uc77c\ud55c \uadfc\ubcf8 \uc6d0\uc778, \uc989 \uc5f0\uc9c8 \uae30\uc9c0 \ub0b4\uc5d0 \ub2e8\ub2e8\ud55c \ud0c4\ud654\ubb3c\uacfc \uac1c\uc7ac\ubb3c\uc774 \uace0\ub974\uac8c \ubd84\ud3ec\ub418\uc9c0 \uc54a\uc740 \ub370\uc11c \ube44\ub86f\ub429\ub2c8\ub2e4. ESR\uc740 \ubc14\ub85c \uc774\ub7ec\ud55c \uc0c1\ud0dc\ub97c \uad50\uc815\ud558\uae30 \uc704\ud574 \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-what-electroslag-remelting-actually-changes-in-d2\" class=\"wp-block-heading\">\uc804\ud574\uc2ac\ub798\uadf8 \uc7ac\uc6a9\uc735\uc774 D2\uc5d0 \uc2e4\uc81c\ub85c \uc5b4\ub5a4 \ubcc0\ud654\ub97c \uac00\uc838\uc624\ub098\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uc8fc\uc870 \ubc29\uc2dd\uc73c\ub85c \uc0dd\uc0b0\ub41c D2 \uc789\uacf3\uc740 \uc815\uc801 \uc751\uace0 \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uc870\ub300\ud55c \ud0c4\ud654\ubb3c \ub9dd, \ud654\ud559\uc801 \ud3b8\uc11d \ubc0f \ube44\uae08\uc18d \uac1c\uc7ac\ubb3c\uc744 \ud568\uc720\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc804\ud574\uc2ac\ub798\uadf8 \uc7ac\uc6a9\uc735\uc740 \uc774\ub7ec\ud55c \uacb0\ud568\uc744 \uac1c\uc120\ud558\uc5ec \uac15\uc7ac\ub97c \uc5f4\uac04 \uac00\uacf5\ud558\uc5ec \ubd09\uac15\uc774\ub098 \ud310\uac15\uc73c\ub85c \ub9cc\ub4e4\uae30 \uc804\uc5d0 \uac00\uc7a5 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 2\ucc28 \uc815\ub828 \uacf5\uc815\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ESR(\uc804\uae30\ud0c8\ucc29\uac15) \uacf5\uc815\uc5d0\uc11c\ub294 1\ucc28 D2 \uac15\ucca0\ub85c \ub9cc\ub4e4\uc5b4\uc9c4 \uc18c\ubaa8\uc131 \uc804\uadf9\uc744 \ubc18\uc751\uc131 \uc6a9\uc735 \uc2ac\ub798\uadf8\ub85c \ucc44\uc6cc\uc9c4 \uc218\ub0c9\uc2dd \uad6c\ub9ac \ub3c4\uac00\ub2c8\uc5d0 \ub123\uc2b5\ub2c8\ub2e4. \uc2ac\ub798\uadf8\uc5d0 \uc804\ub958\ub97c \ud758\ub824\ubcf4\ub0b4\uba74 \uc804\uadf9 \ub05d\ubd80\ubd84\uc774 \ud55c \ubc29\uc6b8\uc529 \ub179\uc2b5\ub2c8\ub2e4. \uac01 \ubc29\uc6b8\uc740 \uc2ac\ub798\uadf8 \uce35\uc744 \ud1b5\uacfc\ud558\uba74\uc11c \uc815\ub828\ub418\uace0, \uc810\uc9c4\uc801\uc73c\ub85c \uc751\uace0\ub418\uc5b4 \uc0c8\ub85c\uc6b4 \uc789\uacf3\uc744 \ud615\uc131\ud569\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc740 \uac15\ucca0\uc758 \ubbf8\uc138 \uad6c\uc870\ub97c \uc138 \uac00\uc9c0 \uce21\uc815 \uac00\ub2a5\ud55c \ubc29\uc2dd\uc73c\ub85c \ubcc0\ud654\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-finer-and-more-uniform-carbide-distribution\" class=\"wp-block-heading\">\ub354\uc6b1 \ubbf8\uc138\ud558\uace0 \uade0\uc77c\ud55c \ud0c4\ud654\ubb3c \ubd84\ud3ec<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uae30\uc874\uc758 \uc815\uc801 \uc8fc\uc870 \ubc29\uc2dd\uc740 \ub0c9\uac01 \uc18d\ub3c4\uac00 \ub290\ub824 \ud569\uae08 \uc6d0\uc18c\ub4e4\uc774 \ud3b8\uc11d\ub418\uc5b4 \uac70\uce5c \uacf5\uc815 \ud0c4\ud654\ubb3c \ub124\ud2b8\uc6cc\ud06c\ub97c \ud615\uc131\ud560 \uc2dc\uac04\uc744 \uac16\uac8c \ub418\ub294\ub370, \uc774\ub7ec\ud55c \ub124\ud2b8\uc6cc\ud06c\ub294 \uc5f4\uac04 \ub2e8\uc870\ub97c \ud1b5\ud574 \ub298\ub9b4 \uc218\ub294 \uc788\uc9c0\ub9cc \uc644\uc804\ud788 \ubd84\ud574\ud560 \uc218\ub294 \uc5c6\uc2b5\ub2c8\ub2e4. \ubc18\uba74, ESR(Electronic Solid Routing) \ubc29\uc2dd\uc740 \uc218\ub0c9\uc2dd \uc8fc\ud615 \ub0b4\uc5d0 \ud56d\uc0c1 \uc595\uc740 \uc6a9\uc735 \uae08\uc18d \ud480\ub9cc \uc720\uc9c0\ud558\uae30 \ub54c\ubb38\uc5d0 \uc751\uace0\uac00 \ub354 \ube60\ub974\uace0 \uad6d\ubd80\uc801\uc73c\ub85c \uc77c\uc5b4\ub0a9\ub2c8\ub2e4. \uc774\ub294 \ud0c4\ud654\ubb3c \uc131\uc7a5\uc5d0 \ud544\uc694\ud55c \uc2dc\uac04\uc744 \uc81c\ud55c\ud558\uc5ec \ub354 \uc791\uace0 \uade0\uc77c\ud55c 1\ucc28 \ud0c4\ud654\ubb3c\uc744 \uc0dd\uc131\ud558\uace0, \ucd5c\uc885 \uac00\uacf5 \uc81c\ud488\uc5d0\uc11c \ud0c4\ud654\ubb3c \ubc34\ub529 \ud604\uc0c1\uc744 \uc904\uc774\uba70, \uc5f4\uac04 \uac00\uacf5 \uc911 \ub354 \uc27d\uac8c \ubd84\ud574\ub420 \uc218 \uc788\ub294 \ubd84\ud3ec\ub97c \ub9cc\ub4e4\uc5b4\ub0c5\ub2c8\ub2e4. \uacb0\uacfc\uc801\uc73c\ub85c \ub3d9\uc77c\ud55c \ud654\ud559 \uc870\uc131\uc5d0\uc11c \ub0b4\ub9c8\ubaa8\uc131\uacfc \uc778\uc131\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-reduced-inclusion-content\" class=\"wp-block-heading\">\ucd95\uc18c\ub41c \ud3ec\ud568 \ucf58\ud150\uce20<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uacf5\uae30 \uc911\uc5d0\uc11c \uc6a9\uc735\ub41c \uac15\ucca0\uc5d0\ub294 \ube44\uae08\uc18d \uac1c\uc7ac\ubb3c, \ud669\ud654\ubb3c, \uc0b0\ud654\ubb3c \ubc0f \uaddc\uc0b0\uc5fc\uc774 \ub0a8\uc544 \uc788\ub294\ub370, \uc774\ub7ec\ud55c \ubd88\uc21c\ubb3c\uc740 \uc751\ub825 \uc9d1\uc911\uc810\uc73c\ub85c \uc791\uc6a9\ud558\uc5ec \uc5f0\uc131, \uc778\uc131 \ubc0f \ud53c\ub85c \uc218\uba85\uc744 \uac10\uc18c\uc2dc\ud0b5\ub2c8\ub2e4. \uc6a9\uc735\ub41c D2 \uc561\uc801\ub4e4\uc774 ESR \uc2ac\ub798\uadf8 \uc695\uc870(\uc77c\ubc18\uc801\uc73c\ub85c CaF2\ub97c \uae30\ubc18\uc73c\ub85c CaO, MgO \ubc0f Al2O3\ub85c \uac1c\ub7c9\ub41c \uc6a9\uc561)\ub97c \ud1b5\uacfc\ud560 \ub54c, \uc2ac\ub798\uadf8\ub294 \uc774\ub7ec\ud55c \ubd88\uc21c\ubb3c\uacfc \ubc18\uc751\ud558\uc5ec \uc0c1\ub2f9 \ubd80\ubd84\uc744 \ud3ec\uc9d1\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ESR \uacf5\uad6c\uac15\uc758 \uc81c\ub828 \ub370\uc774\ud130\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uacf5\uae30 \uc6a9\uc735 \uc7ac\ub8cc\uc5d0 \ube44\ud574 \ud669 \ud568\ub7c9\uc774 \uc57d 50~70% \uac10\uc18c\ud558\uace0, \uc885\uc885 0.002% \ubbf8\ub9cc\uc73c\ub85c \ub5a8\uc5b4\uc9c0\ub294 \uac83\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ub610\ud55c \uc0b0\uc18c \ud568\ub7c9\uc774 \ub0ae\uc544\uc9c0\uace0, \ub0a8\uc544\uc788\ub294 \uac1c\uc7ac\ubb3c\uc740 \ub354 \uc791\uace0 \ub465\uae00\uba70 \uace0\ub974\uac8c \ubd84\ud3ec\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. ASTM E45 \ubc29\ubc95 D \uccad\uc815\ub3c4 \ud3c9\uac00\uc5d0\uc11c ESR \ub4f1\uae09 \uc7ac\ub8cc\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud45c\uc900 \uc804\uae30\ub85c \uc6a9\uc735\uac15\ubcf4\ub2e4 \ud6e8\uc52c \ub0ae\uc740 \uc810\uc218\ub97c \ubc1b\ub294\ub370, \uc774\ub294 \uad6c\ub9e4\uc790\uac00 \uad6c\ub9e4 \uc0ac\uc591\uc5d0 \uba85\uc2dc\ud560 \uc218 \uc788\ub294 \uccad\uc815\ub3c4 \ud55c\uacc4\uc758 \uae30\uc900\uc774 \ub418\uba70, \uc774\uc5d0 \ub300\ud574\uc11c\ub294 \uc774 \uae00 \ud6c4\ubc18\ubd80\uc5d0\uc11c \uc790\uc138\ud788 \ub2e4\ub8f9\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-consistent-microstructure-across-the-cross-section\" class=\"wp-block-heading\">\ub2e8\uba74 \uc804\uccb4\uc5d0 \uac78\uccd0 \uc77c\uad00\ub41c \ubbf8\uc138 \uad6c\uc870<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uae30\uc874 \uc8fc\uad34\ub294 \ubc14\uae65\ucabd\uc5d0\uc11c \uc548\ucabd\uc73c\ub85c \uc751\uace0\ub418\ubbc0\ub85c \uac70\uc2dc\uc801 \ud3b8\uc11d, \uc911\uc2ec\ubd80 \uae30\uacf5 \ubc0f \uc218\ucd95 \uacf5\ub3d9\uc774 \ubc1c\uc0dd\ud558\uae30 \uc27d\uace0, \uc774\ub7ec\ud55c \uacf5\ub3d9\uc740 \uc8fc\uc870 \ud6c4 \uc5f4\ucc98\ub9ac\ub85c \ubcf4\uc815\ud558\uae30\uc5d0\ub294 \ub108\ubb34 \ub113\uc740 \ubc94\uc704\uc5d0 \uac78\uccd0 \uc788\uc2b5\ub2c8\ub2e4. ESR(Electronic Solid Release) \ubc29\uc2dd\uc740 \uc595\uace0 \uc5f0\uc18d\uc801\uc73c\ub85c \ub0c9\uac01\ub418\ub294 \uc6a9\uc735 \ud480\uc5d0\uc11c \uc544\ub798\ucabd\uc5d0\uc11c \uc704\ucabd\uc73c\ub85c \uc810\uc9c4\uc801\uc73c\ub85c \uc751\uace0\ub418\ubbc0\ub85c \uc911\uc2ec\ubd80 \ud3b8\uc11d \ubc0f \ud30c\uc774\ud551 \ud604\uc0c1\uc744 \ubc29\uc9c0\ud558\uace0, \uae30\uc874 \uc8fc\uad34\uc758 \ub290\ub9ac\uac8c \ub0c9\uac01\ub418\ub294 \uc911\uc2ec\ubd80\uc640 \ube44\uad50\ud558\uc5ec \uc774\ucc28 \uc218\uc9c0\uc0c1 \uac00\uc9c0 \uac04\uaca9\uc744 \ud604\uc800\ud558\uac8c \uc904\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"665\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/\u5c4f\u5e55\u622a\u56fe-2026-07-19-154716-1.png\" alt=\"\" class=\"wp-image-16755\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/\u5c4f\u5e55\u622a\u56fe-2026-07-19-154716-1.png 886w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/\u5c4f\u5e55\u622a\u56fe-2026-07-19-154716-1-300x225.png 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/\u5c4f\u5e55\u622a\u56fe-2026-07-19-154716-1-768x576.png 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/\u5c4f\u5e55\u622a\u56fe-2026-07-19-154716-1-16x12.png 16w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><figcaption class=\"wp-element-caption\"><em>\uace0\uc628 \uc0b0 \uc5d0\uce6d \ucc98\ub9ac\ub41c \uc77c\ubc18\uc801\uc778 \ub2e8\uc77c \uc6a9\uc735 \uacf5\uad6c\uac15\uc785\ub2c8\ub2e4. \uc911\uc2ec\ubd80\uc758 \uac1c\uc7ac\ubb3c\uacfc \uae30\uacf5\uc774 \uad00\ucc30\ub429\ub2c8\ub2e4.<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"668\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/\u5c4f\u5e55\u622a\u56fe-2026-07-19-154726.png\" alt=\"\" class=\"wp-image-16753\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/\u5c4f\u5e55\u622a\u56fe-2026-07-19-154726.png 886w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/\u5c4f\u5e55\u622a\u56fe-2026-07-19-154726-300x226.png 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/\u5c4f\u5e55\u622a\u56fe-2026-07-19-154726-768x579.png 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/07\/\u5c4f\u5e55\u622a\u56fe-2026-07-19-154726-16x12.png 16w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><figcaption class=\"wp-element-caption\"><em>\uace0\uc628 \uc0b0 \uc5d0\uce6d \ud6c4 ESR \uc7ac\uc6a9\uc735 \ucc98\ub9ac\ub41c \uacf5\uad6c\uac15. \uc911\uc2ec\uc120 \uac1c\uc7ac\ubb3c \ubc0f \uae30\uacf5\uc774 \uc5c6\ub294 \uac83\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/em>.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc9c8\uc801\uc778 \uacb0\uacfc\ub294 \ud45c\uba74\uc774\ub098 \uc911\uc2ec\ubd80, \uadf8\ub9ac\uace0 \uae38\uc774 \ubc29\ud5a5\uc774\ub098 \ud6a1\ubc29\ud5a5\uc5d0\uc11c \uce21\uc815\ud558\ub354\ub77c\ub3c4 \uacbd\ub3c4, \uc778\uc7a5 \uac15\ub3c4 \ubc0f \uc5f0\uc2e0\uc728\uc774 \uc77c\uc815\ud558\uac8c \uc720\uc9c0\ub418\ub294 \ubd09 \ub610\ub294 \ud310\uc7ac\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 D2 \uac15\uc7ac\ub294 \ud3b8\uc11d \ub760\uc640 \uac1c\uc7ac\ubb3c\uc774 \uc555\uc5f0 \ubc29\ud5a5\uacfc \uc77c\uce58\ud558\uae30 \ub54c\ubb38\uc5d0 \ub2e8\uba74 \ud06c\uae30\uac00 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \ud6a1\ubc29\ud5a5 \ucda9\uaca9 \uac15\ub3c4\uc640 \uc5f0\uc131\uc774 \uc800\ud558\ub418\ub294 \uacbd\ud5a5\uc774 \uc788\uc2b5\ub2c8\ub2e4. ESR D2 \uac15\uc7ac\ub294 \ub450\uaebc\uc6b4 \uae08\ud615 \ubc0f \ube14\ub85d\uc5d0 \uac00\uc7a5 \uc911\uc694\ud55c \ud2b9\uc131\uc778 \ud6a1\ubc29\ud5a5 \uc778\uc131\uc744 \ub2e8\uba74 \uc804\uccb4\uc5d0 \uac78\uccd0 \uc0c1\ub2f9\ud788 \ub192\uac8c \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-esr-d2-vs-standard-d2-a-direct-comparison\" class=\"wp-block-heading\">ESR D2\uc640 \ud45c\uc900 D2\uc758 \uc9c1\uc811 \ube44\uad50<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc704\uc5d0\uc11c \uc124\uba85\ud55c \ucc28\uc774\uc810\uc740 \uad6c\ub9e4 \ub2f4\ub2f9\uc790\uac00 \uacf5\uc7a5 \uc2dc\ud5d8 \ubcf4\uace0\uc11c\uc5d0\uc11c \ud655\uc778\ud558\ub294 \ub3d9\uc77c\ud55c 7\uac00\uc9c0 \ub9e4\uac1c\ubcc0\uc218\ub97c \uae30\uc900\uc73c\ub85c \uc694\uc57d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\uae30\uc220\uc801 \ub9e4\uac1c\ubcc0\uc218<\/strong><\/td><td><strong>\ud45c\uc900 D2 (\uae30\uc874\uc758 \uc8fc\uad34 \uc8fc\uc870 \ubc29\uc2dd)<\/strong><\/td><td><strong>ESR D2 (\uc804\uae30\uc2ac\ub798\uadf8 \uc7ac\uc6a9\uc735)<\/strong><\/td><\/tr><tr><td>\uc751\uace0 \ud504\ub85c\ud30c\uc77c<\/td><td>\uc815\uc801\uc774\uace0 \uc678\ubd80\uc5d0\uc11c \ub0b4\ubd80\ub85c \uc9c4\ud589\ub418\uba70, \uc911\uc2ec\ubd80 \ub2e4\uacf5\uc131, \ubd84\ub9ac \ubc0f \ud30c\uc774\ud551 \ud604\uc0c1\uc774 \ubc1c\uc0dd\ud558\uae30 \uc27d\uc2b5\ub2c8\ub2e4.<\/td><td>\uc810\uc9c4\uc801\uc774\uace0 \ubc29\ud5a5\uc131 \uc788\ub294 \ud558\ud5a5\uc2dd \uc124\uacc4\ub85c \uc911\uc2ec\uc120 \ud30c\uc774\ud504 \ubc0f \ub2e4\uacf5\uc131\uc744 \ud6a8\uacfc\uc801\uc73c\ub85c \uc81c\uac70\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uac70\uc2dc \uad6c\uc870 \ubc0f \uade0\uc9c8\uc131<\/td><td>\ub2e8\uba74\uc801 \ubcc0\ud654\uac00 \ub354 \ud06c\uace0, \uc911\uc2ec\ubd80\uc5d0 \uad6c\ud615 \uc601\uc5ed\uc774 \uc788\ub294 \ub354 \uac70\uce5c \uc218\uc9c0\uc0c1 \uad6c\uc870\ub97c \ubcf4\uc778\ub2e4.<\/td><td>\uc870\ubc00\ud558\uace0 \uade0\uc77c\ud55c \ub2e8\uba74\uc744 \uac00\uc9c0\uba70, \uc774\ucc28 \uc218\uc0c1\ub3cc\uae30 \uac00\uc9c0 \uac04\uaca9\uc774 \ud604\uc800\ud558\uac8c \uc815\ubc00\ud558\ub2e4.<\/td><\/tr><tr><td>\ubbf8\uc0dd\ubb3c \uccad\uacb0\ub3c4(ASTM E45)<\/td><td>\ud669\ud654\ubb3c, \uc54c\ub8e8\ubbf8\ub284\uc0b0\uc5fc, \uaddc\uc0b0\uc5fc \ubc0f \uc0b0\ud654\ubb3c \ud568\uc720\ub7c9 \ub4f1\uae09\uc774 \ub354 \ub192\uc2b5\ub2c8\ub2e4.<\/td><td>\uad11\ubc94\uc704\ud55c \uc2ac\ub798\uadf8-\uae08\uc18d \uc815\ub828 \uacf5\uc815\uc744 \uac70\ucce4\uc73c\uba70, \ud669 \ud568\ub7c9\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 0.002% \ubbf8\ub9cc\uc774\uace0, \uac1c\uc7ac\ubb3c \ud568\ub7c9\uc740 \ud6e8\uc52c \ub0ae\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\ud0c4\ud654\ubb3c\uc758 \ud615\ud0dc \ubc0f \ud06c\uae30<\/td><td>\uc5f4\uac04 \uac00\uacf5\uc5d0 \uc758\ud574 \ub760 \ubaa8\uc591\uacfc \uc904\ubb34\ub2ac \ubaa8\uc591\uc73c\ub85c \uae38\uc5b4\uc9c4 \uc870\ub300\ud55c \uacf5\uc735 M7C3 \ub9dd\uc0c1 \uad6c\uc870.<\/td><td>\ub354\uc6b1 \ubbf8\uc138\ud55c \uacf5\uc735 \uc140 \ud06c\uae30; \uc644\uc131\ub41c \ubd09\uc5d0\uc11c \ud0c4\ud654\ubb3c \ubc34\ub529 \uac10\uc18c.<\/td><\/tr><tr><td>\uae30\uacc4\uc801 \ud2b9\uc131<\/td><td>\uc774\ubc29\uc131 \uc7ac\ub8cc\uc774\ubbc0\ub85c \ud6a1\ubc29\ud5a5 \uc5f0\uc131, \uc778\uc131 \ubc0f \ud53c\ub85c \uac15\ub3c4\uac00 \uc81c\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4.<\/td><td>\ub4f1\ubc29\uc131\uc5d0 \ub354 \uac00\uae5d\uace0, \ud6a1\ubc29\ud5a5 \uc778\uc131\uc774 \uc885\ubc29\ud5a5 \uac12\uc5d0 \ud6e8\uc52c \ub354 \uac00\uae4c\uc6cc\uc84c\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uace0\uc628 \uac00\uacf5\uc131 \ubc0f \uc218\uc728<\/td><td>\ud0c4\ud654\ubb3c \ub124\ud2b8\uc6cc\ud06c\ub97c \ubd84\ud574\ud558\ub824\uba74 \ub354 \uac15\ud55c \ub2e8\uc870 \uac10\uc18c\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/td><td>\uc774\ubbf8 \uc815\uc81c\ub41c \uad6c\uc870 \ub355\ubd84\uc5d0 \ub354 \ub0ae\uc740 \ub2e8\uc870 \uac10\uc18c\uc728\uc744 \ud5c8\uc6a9\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uc5f4\ucc98\ub9ac \ubc18\uc751<\/td><td>\uac70\uc2dc\uc801 \ud3b8\uc11d\uc73c\ub85c \uc778\ud55c \uacbd\ub3c4 \ubcc0\ud654; \ub354 \ud070 \ud0c4\ud654\ubb3c\uc740 \ud569\uae08 \uc6a9\ud574\ub97c \uc81c\ud55c\ud569\ub2c8\ub2e4.<\/td><td>\ub354\uc6b1 \uade0\uc77c\ud55c \uacbd\ub3c4; \uc815\uc81c\ub41c \ud0c4\ud654\ubb3c\uc740 \uace0\ub978 \uc6a9\ud574 \ubc0f \ud15c\ud37c\ub9c1 \ubc18\uc751\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uad11\ud0dd\uc131 (\uac70\uc6b8\ucc98\ub7fc \ub9e4\ub044\ub7ec\uc6b4 \ub9c8\uac10)<\/td><td>\uc624\ub80c\uc9c0 \uaecd\uc9c8 \ubaa8\uc591, \ud0c4\ud654\ubb3c \ud0c8\ub77d\uc73c\ub85c \uc778\ud55c \uad6c\uba4d, \ud61c\uc131 \uaf2c\ub9ac \ubaa8\uc591\uc758 \uae01\ud798\uc774 \ubc1c\uc0dd\ud558\uae30 \uc27d\uc2b5\ub2c8\ub2e4.<\/td><td>\uc815\uad50\ud558\uace0 \uacb0\ud569\ub825\uc774 \ub6f0\uc5b4\ub09c \ud0c4\ud654\ubb3c\uacfc \uae68\ub057\ud55c \uae30\uc9c0 \uc870\uc9c1\uc774 \ud760\uc7a1\uc744 \ub370 \uc5c6\ub294 \uac70\uc6b8\ucc98\ub7fc \ub9e4\ub044\ub7ec\uc6b4 \uc5f0\ub9c8\ub97c \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub7ec\ud55c \ucc28\uc774\uc810\uc740 \uae30\ubcf8\uc801\uc778 \ud654\ud559 \ubd84\uc11d\ud45c\uc5d0\ub294 \ub098\ud0c0\ub098\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. D2 \uac15\uc7ac \ub450 \uac1c\ub294 \ud654\ud559 \ubd84\uc11d \uacb0\uacfc\uac00 \ub3d9\uc77c\ud558\ub354\ub77c\ub3c4 \uc587\uc740 \ubaa8\uc11c\ub9ac \uc801\uc6a9 \ubd84\uc57c\uc5d0\uc11c \ub9e4\uc6b0 \ub2e4\ub978 \uc131\ub2a5\uc744 \ubcf4\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8 \ucc28\uc774\ub294 \uac15\uc7ac\uc758 \uad6c\uc131 \uc131\ubd84\uc774 \uc544\ub2c8\ub77c \uc751\uace0 \ubc29\uc2dd\uc5d0 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \ud654\ud559 \ubd84\uc11d \uacb0\uacfc\ub9cc\uc73c\ub85c \uad6c\ub9e4 \uc0ac\uc591\uc744 \uc815\ud558\ub294 \uac83\uc740 ESR(Electronic Stir Rate, \uc751\uace0 \uc800\ud56d\ub960)\uc774 \uc694\uad6c\ub418\ub294 \uc6a9\ub3c4\uc5d0\uc11c \uc77c\ubc18\uc801\uc778 \uacf5\uae30 \uc6a9\uc735 \uac15\uc7ac\ub97c \ubc1b\ub294 \uac83\uc744 \ubc29\uc9c0\ud558\ub294 \ub370 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774 \uc810\uc740 \uc774 \uae00\uc758 \ub4b7\ubd80\ubd84\uc5d0\uc11c \ub354 \uc790\uc138\ud788 \ub2e4\ub8f9\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-din-1-2379-and-its-international-equivalents\" class=\"wp-block-heading\">DIN 1.2379 \ubc0f \uadf8 \uad6d\uc81c\uc801 \ub3d9\ub4f1 \uaddc\uaca9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D2\ub294 AISI \uaddc\uaca9\uc785\ub2c8\ub2e4. \uc720\ub7fd\uc774\ub098 \ub0a8\ubbf8 \ub3c4\uba74\uc744 \uc0ac\uc6a9\ud558\ub294 \uad6c\ub9e4\uc790\ub4e4\uc740 \uc77c\ubc18\uc801\uc73c\ub85c DIN \uaddc\uaca9\uc778 1.2379 \ub610\ub294 Werkstoffnummer \ud615\uc2dd\uc778 W.Nr. 1.2379\ub85c \uc774 \uac15\uc885\uc744 \uc811\ud558\uac8c \ub429\ub2c8\ub2e4. \ub450 \uba85\uce6d\uc740 \ub3d9\uc77c\ud55c \ud654\ud559 \uacc4\uc5f4\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc774 \uac15\uc885\uc740 \ubab0\ub9ac\ube0c\ub374\uacfc \ubc14\ub098\ub4d0\uc774 \ucca8\uac00\ub41c \uace0\ud0c4\uc18c, \uace0\ud06c\ub86c \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uac15\uc73c\ub85c, \ubbf8\uad6d ASTM A681\uacfc \uc720\ub7fd DIN EN ISO 4957 \uaddc\uaca9\uc5d0 \ub530\ub77c \uc720\uc0ac\ud558\uc9c0\ub9cc \ud56d\uc0c1 \ub3d9\uc77c\ud558\uc9c0\ub294 \uc54a\uc740 \uc870\uc131 \uacf5\ucc28\ub85c \uc0dd\uc0b0\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ub4f1\uae09\uc5d0 \ub300\ud55c \uc77c\ubc18\uc801\uc778 \uc0c1\ud638 \ucc38\uc870\ub85c\ub294 \ubbf8\uad6d\uc758 AISI\/SAE D2, \ub3c5\uc77c \ubc0f \uc720\ub7fd \ub300\ub959 \ub300\ubd80\ubd84\uc758 \uad6d\uac00\uc5d0\uc11c DIN\/W.Nr. 1.2379, \uc77c\ubcf8\uc758 JIS SKD11, \uadf8\ub9ac\uace0 \uc911\uad6d\uc758 GB Cr12Mo1V1\uc774 \uc788\uc73c\uba70, \uc774\ub4e4\uc740 \uc870\uc131\uc740 \uc720\uc0ac\ud558\uc9c0\ub9cc \uc644\uc804\ud788 \ub3d9\uc77c\ud558\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uba85\uce6d\ub4e4\uc740 \ubaa8\ub450 \uc6a9\uc735 \ubc29\uc2dd\uc744 \uba85\uc2dc\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. 1.2379 \ub610\ub294 D2 \ud654\ud559 \uc870\uc131\uc744 \ub098\ud0c0\ub0b4\ub294 \uacf5\uc7a5 \uc778\uc99d\uc11c\ub294 \ud569\uae08 \uacc4\uc5f4\uc744 \ud655\uc778\ud558\ub294 \uac83\uc77c \ubfd0, \uc7ac\ub8cc\uac00 \uc77c\ubc18 \uc8fc\uc870 \ubc29\uc2dd\uc73c\ub85c \uc81c\uc870\ub418\uc5c8\ub294\uc9c0 \ub610\ub294 \uc804\ud574\uc2ac\ub798\uadf8 \uc7ac\uc6a9\uc735 \ubc29\uc2dd\uc73c\ub85c \uc81c\uc870\ub418\uc5c8\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. ESR(\uc804\ud574\uc2ac\ub798\uadf8 \uc7ac\uc6a9\uc735) \ud488\uc9c8\uc774 \ud544\uc694\ud55c \uad6c\ub9e4\uc790\ub294 \ub3c4\uba74\uc5d0 \uc5b4\ub5a4 \uad6d\uac00 \uba85\uce6d\uc774 \ud45c\uc2dc\ub418\uc5b4 \uc788\ub4e0 \uad00\uacc4\uc5c6\uc774 \ub2e4\uc74c \uc139\uc158\uc5d0\uc11c \uc124\uba85\ud558\ub294 \uc870\uac74\uc5d0 \ub530\ub77c \ud574\ub2f9 \uc694\uad6c \uc0ac\ud56d\uc744 \ubcc4\ub3c4\ub85c \uba85\uc2dc\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-when-buyers-should-specify-esr-on-their-inquiry\" class=\"wp-block-heading\">\uad6c\ub9e4\uc790\uac00 \ubb38\uc758 \uc2dc ESR\uc744 \uba85\uc2dc\ud574\uc57c \ud558\ub294 \uacbd\uc6b0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ESR\uc740 \ub354 \uae68\ub057\ud558\uace0, \ub354 \ub2e8\ub2e8\ud558\uba70, \ub354 \uade0\uc77c\ud55c \uac15\ucca0\uc744 \uc0dd\uc0b0\ud558\uc9c0\ub9cc, \uae30\uc874 \uc804\uae30\ub85c \uc81c\ub828 \ubc29\uc2dd\ubcf4\ub2e4 \uc18d\ub3c4\uac00 \ub290\ub9ac\uace0 \ube44\uc6a9\uc774 \ub354 \ub9ce\uc774 \ub4ed\ub2c8\ub2e4. ESR\ub85c \uc815\ub828\ub41c D2 \uac15\ucca0\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uae30\uc874 \ubc29\uc2dd\uc73c\ub85c \uc0dd\uc0b0\ub41c \ub3d9\uc77c\ud55c \ud654\ud559 \uc131\ubd84\uc758 \uac15\ucca0\ubcf4\ub2e4 \uac00\uaca9\uc774 2~3\ubc30 \ub354 \ube44\uc309\ub2c8\ub2e4. \uc81c\ucca0\uc18c\uc5d0\uc11c\ub294 ESR\uc744 \uae30\ubcf8\uc801\uc73c\ub85c \uc801\uc6a9\ud558\uc9c0 \uc54a\uc73c\uba70, \uc77c\ubc18\uc801\uc73c\ub85c \ub192\uc740 \uac00\uaca9 \ud504\ub9ac\ubbf8\uc5c4\uc744 \uc815\ub2f9\ud654\ud560 \uc218 \uc788\ub294 \uc6a9\ub3c4\uc5d0 \ud55c\uc815\ud558\uc5ec \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-applications-that-justify-the-cost\" class=\"wp-block-heading\">\ube44\uc6a9\uc744 \uc815\ub2f9\ud654\ud560 \uc218 \uc788\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ubcf5\uc7a1\ud558\uace0 \uace0\ubd80\uac00\uac00\uce58\uc778 \uacf5\uad6c\uac00 \uac00\uc7a5 \ub300\ud45c\uc801\uc778 \uc0ac\ub840\uc785\ub2c8\ub2e4. \uc6d0\uc790\uc7ac\uc778 \uac15\ucca0\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc644\uc131\ub41c \uae08\ud615\uc758 \ucd1d\ube44\uc6a9\uc5d0\uc11c \uadf9\ud788 \uc77c\ubd80\ub9cc\uc744 \ucc28\uc9c0\ud558\uba70, \uc18c\ud615 \uacf5\uad6c\uc758 \uacbd\uc6b0 \uc57d 10% \uc815\ub3c4\uc5d0 \ubd88\uacfc\ud569\ub2c8\ub2e4. \ub098\uba38\uc9c0 \ube44\uc6a9\uc740 CNC \ubc00\ub9c1, \uc640\uc774\uc5b4 \ubc29\uc804 \uac00\uacf5, \ubca4\uce58 \uc791\uc5c5\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub0b4\ubd80 \uacb0\ud568\uc73c\ub85c \uc778\ud574 \uacf5\uad6c\uac00 \uc870\uae30\uc5d0 \ud30c\uc190\ub418\uba74 \uc7ac\ub8cc\ube44\ubfd0 \uc544\ub2c8\ub77c \uc804\uccb4 \uc81c\uc870 \ud22c\uc790\uc561\uc744 \uc783\uac8c \ub418\ubbc0\ub85c, ESR(\ub0b4\uc5f4 \uac15\ucca0)\uc744 \uc801\uc6a9\ud558\ub294 \uac83\uc740 \uc778\uac74\ube44\ub97c \ubcf4\ud638\ud558\ub294 \ub370 \ub4dc\ub294 \ube44\uc6a9 \ub300\ube44 \ud6a8\uacfc\uac00 \ub6f0\uc5b4\ub09c \ubcf4\ud5d8\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc790\ub3d9\ucc28 \ub80c\uc988 \uae08\ud615 \ubc0f \uae30\ud0c0 \uace0\uad11\ud0dd \uc18c\ube44\uc7ac \uae08\ud615\uacfc \uac19\uc740 \uace0\uad11\ud0dd \ud654\uc7a5\ud488 \uae08\ud615\uc740 \uae30\uc874 D2 \uac1c\uc7ac\ubb3c\uc774 \uc5f0\ub9c8 \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\uc2dc\ud0a4\ub294 \ubbf8\uc138\ud55c \uad6c\uba4d\uc774\ub098 \ud61c\uc131 \uaf2c\ub9ac \ubaa8\uc591\uc758 \ud760\uc9d1\uc744 \ud5c8\uc6a9\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. ESR\uc758 \uc2ac\ub798\uadf8 \uc5ec\uacfc \uae30\uc220\uc740 \uc774\ub7ec\ud55c \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uc5ec \uc644\ubcbd\ud55c \uac70\uc6b8 \ub9c8\uac10\uc744 \uad6c\ud604\ud560 \uc218 \uc788\ub3c4\ub85d \ud574\uc90d\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e8\uba74 \ud06c\uae30\uac00 \ud06c\uac70\ub098 \ube14\ub85d\uc774 \ub450\uaebc\uc6b4 \uacbd\uc6b0, \uae30\uc874 \uc8fc\uc870 \ubc29\uc2dd\uc73c\ub85c\ub294 \uc751\uace0 \uc18d\ub3c4\uac00 \ub9e4\uc6b0 \ub290\ub824 \uc911\uc2ec\ubd80 \ud3b8\uc11d \ubc0f \uae30\uacf5\uc774 \uc2ec\uac01\ud574\uc9d1\ub2c8\ub2e4. ESR(\uc804\uc790\uc2dd \uace0\uccb4 \uc751\uace0) \ubc29\uc2dd\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e8\uba74 \ub450\uaed8\uac00 \ub450\uaebc\uc6b4 \ube14\ub85d \uc601\uc5ed\uc5d0 \uc9c4\uc785\ud560 \ub54c, \uc989 \uc791\uc740 \ub2e8\uba74\ubcf4\ub2e4 \uacac\uace0\ud558\uace0 \uade0\uc77c\ud55c \uc911\uc2ec\ubd80 \uad6c\uc870\uac00 \ub354\uc6b1 \uc911\uc694\ud574\uc9c0\ub294 \uacbd\uc6b0\uc5d0 \uc801\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub0c9\uac04 \uc555\ucd9c \ud380\uce58, \uad6c\uc870\uc6a9 \uc2a4\ud0ec\ud551 \ub2e4\uc774, \ub0c9\uac04 \ud5e4\ub529 \uc778\uc11c\ud2b8\uc640 \uac19\uc774 \ubc18\ubcf5\uc801\uc778 \ud53c\ub85c \ub610\ub294 \ucda9\uaca9\uc5d0 \ub178\ucd9c\ub418\ub294 \uacf5\uad6c\ub294 \ubc18\ubcf5\uc801\uc778 \ucda9\uaca9 \ud558\uc911\uc744 \ubc1b\uac8c \ub418\uba70, \uc774\ub85c \uc778\ud574 \ub0b4\ubd80 \uc751\ub825 \uc9d1\uc911 \ubd80\uc704\uc5d0\uc11c \ubbf8\uc138 \uade0\uc5f4\uc774 \uc27d\uac8c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. ESR\uc758 \ub0ae\uc740 \uac1c\uc7ac\ubb3c \ud568\ub7c9\uc740 \uc774\ub7ec\ud55c \ud558\uc911 \uc870\uac74\uc5d0\uc11c \ud53c\ub85c \uc218\uba85\uacfc \ucda9\uaca9 \uc778\uc131\uc744 \uc9c1\uc811\uc801\uc73c\ub85c \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-applications-where-standard-d2-is-sufficient\" class=\"wp-block-heading\">\ud45c\uc900 D2\ub85c \ucda9\ubd84\ud55c \uc751\uc6a9 \ubd84\uc57c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uae08\ud615 \ub9c8\ubaa8\ub85c \uc778\ud574 \uae08\ud615\uc744 \ud3d0\uae30\ud558\uac70\ub098 \uc7ac\uc5f0\uc0ad\ud558\uae30 \uc804\uc5d0 \uacc4\ud68d\ub41c \uc0dd\uc0b0\ub7c9\uc774 \uc81c\ud55c\ub418\uc9c0 \uc54a\ub294 \ub2e8\uae30\uc5d0\uc11c \uc911\uae30 \uc0dd\uc0b0\uc758 \uacbd\uc6b0, \uc77c\ubc18\uc801\uc73c\ub85c ESR \ud504\ub9ac\ubbf8\uc5c4\uc744 \ud68c\uc218\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \ud544\ub81b \ubc18\uacbd\uc774 \ud06c\uace0 \ub0a0\uce74\ub86d\uac70\ub098 \ud544\ub81b \ucc98\ub9ac\ub418\uc9c0 \uc54a\uc740 \ubaa8\uc11c\ub9ac\uac00 \uc5c6\ub294 \ub2e8\uc21c\ud558\uace0 \ub300\uce6d\uc801\uc778 \ud615\uc0c1\uc740 \uc587\uc740 \ubaa8\uc11c\ub9ac\ub97c \uac00\uc9c4 \uacf5\uad6c\ucc98\ub7fc \uc751\ub825\uc744 \uc9d1\uc911\uc2dc\ud0a4\uc9c0 \uc54a\uc73c\ubbc0\ub85c \ud45c\uc900 D2\ub294 \uc774\ub7ec\ud55c \ud615\uc0c1\uc5d0\uc11c \ucda9\ubd84\ud55c \uc131\ub2a5\uc744 \ubc1c\ud718\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc9c1\uc120\ud615 \uc804\ub2e8\ub0a0\uc774\ub098 \uc138\ub77c\ubbf9 \uc131\ud615 \ub2e4\uc774\uc640 \uac19\uc774 \ucda9\uaca9\uc774 \ucd5c\uc18c\ud654\ub41c \uc21c\uc218 \ub9c8\ubaa8 \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c\ub294 ESR\uc774 \uc8fc\ub85c \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \ud6a1\ubc29\ud5a5 \uc778\uc131\ubcf4\ub2e4\ub294 D2\uc758 \ud0c4\ud654\ubb3c \ud568\ub7c9\uc5d0 \ub530\ub77c \ub0b4\ub9c8\ubaa8\uc131\uc774 \uacb0\uc815\ub429\ub2c8\ub2e4. \ub610\ud55c \uad6c\uc870\uc6a9 \uacf5\uad6c \ubd80\ud488, \ud640\ub354 \ube14\ub85d, \ub2e4\uc774 \uc288, \ubc31\ucee4 \ud50c\ub808\uc774\ud2b8\uc5d0\ub294 D2\uc758 \uacbd\ub3c4\ub098 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc804\ud600 \ud544\uc694\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubd80\ud488\uc5d0\ub294 \uc6a9\uc735 \ubc29\uc2dd\uacfc \uad00\uacc4\uc5c6\uc774 P20\uacfc \uac19\uc740 \uc0ac\uc804 \uacbd\ud654\ub41c \uc800\ud569\uae08\uac15\uc774\ub098 4140\uacfc \uac19\uc740 \uc911\ud0c4\uc18c\uac15\uc774 \ub354 \uacbd\uc81c\uc801\uc778 \uc120\ud0dd\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"h-how-to-write-esr-into-a-purchase-specification\" class=\"wp-block-heading\">\uad6c\ub9e4 \uba85\uc138\uc11c\uc5d0 ESR\uc744 \uc791\uc131\ud558\ub294 \ubc29\ubc95<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uad6c\ub9e4 \uc8fc\ubb38\uc11c\uc5d0 AISI D2 \ub610\ub294 1.2379\uc640 \uac19\uc740 \ud45c\uae30\uac00 \uc788\ub294 \uac83\uc740 \ud654\ud559\uc801 \uc870\uc131\uc744 \ub098\ud0c0\ub0b4\ub294 \uac83\uc774\uc9c0 \uc6a9\uc735 \uacf5\uc815\uc744 \ub098\ud0c0\ub0b4\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uacf5\uae09\uc5c5\uccb4\ub294 \uc77c\ubc18\uc801\uc778 \uc8fc\uc870 \ubc29\uc2dd\uc73c\ub85c \uc7ac\ub8cc\ub97c \uc81c\uc870\ud558\uc5ec \uc0ac\uc591\uc744 \ubb38\uc790 \uadf8\ub300\ub85c \ucda9\uc871\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. ESR \ud488\uc9c8\uc758 \uc81c\ud488\uc744 \uc548\uc815\uc801\uc73c\ub85c \uacf5\uae09\ubc1b\uc73c\ub824\uba74 \uad6c\ub9e4 \uc0ac\uc591\uc11c\uc5d0 \ub2e4\uc74c \uc0ac\ud56d\uc744 \uba85\ud655\ud558\uac8c \uba85\uc2dc\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud654\ud559 \ubc0f \uc77c\ubc18 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ub300\ud55c \ud574\ub2f9 \uae30\ubcf8 \ud45c\uc900\uc778 \ubbf8\uad6d\uc758 ASTM A681 \ub610\ub294 \uc720\ub7fd\uc758 DIN EN ISO 4957\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. \ub450 \ud45c\uc900 \ubaa8\ub450 \ud2b9\uc815 \uc6a9\uc735 \uacf5\uc815\uc774\ub098 \uccad\uc815\ub3c4 \ub4f1\uae09\uc744 \uc790\uccb4\uc801\uc73c\ub85c \uc758\ubb34\ud654\ud558\uc9c0\ub294 \uc54a\uc73c\uba70, \uc774\ub7ec\ud55c \uc694\uad6c\uc0ac\ud56d\uc740 \ubcc4\ub3c4\ub85c \ucd94\uac00\ud574\uc57c \ud569\ub2c8\ub2e4. \uc544\ub798 \uc870\ud56d\uc740 \ubc14\ub85c \uc774\ub7ec\ud55c \uc694\uad6c\uc0ac\ud56d\uc744 \ucd94\uac00\ud558\uae30 \uc704\ud55c \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac15\ucca0\uc744 \uc804\uae30\ub85c\uc5d0\uc11c \ub179\uc778 \ud6c4 \uc804\ud574\uc2ac\ub798\uadf8\ub97c \uc7ac\uc6a9\uc735\ud574\uc57c \ud55c\ub2e4\ub294 \uc810\uc744 \uba85\ud655\ud788 \uba85\uc2dc\ud558\uace0, \uacf5\uae09\uc5c5\uccb4\uc5d0\uac8c \uba85\uce6d\ub9cc\uc73c\ub85c \ucd94\ub860\ud558\uc9c0 \ub9d0\uace0 \uc81c\ub828\uc18c \uc2dc\ud5d8 \uc99d\uba85\uc11c\ub97c \ud1b5\ud574 \uc774\ub97c \ud655\uc778\ud574 \uc904 \uac83\uc744 \uc694\uccad\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ASTM E45 \ubc29\ubc95 D, JK \ub4f1\uae09\uc744 \ucc38\uc870\ud558\uc5ec \uc885\ub2e8 \uc2dc\ud3b8\uc5d0 \ub300\ud55c ESR \ud488\uc9c8\uc5d0 \uc801\ud569\ud55c \ucd5c\ub300 \ud55c\uacc4\ub97c \uc124\uc815\ud558\uba70, \uc77c\ubc18\uc801\uc73c\ub85c \ud669\ud654\ubb3c \ubc0f \uc0b0\ud654\ubb3c \uc720\ud615 \uac1c\uc7ac\ubb3c\uc758 \uacbd\uc6b0 \uc587\uc740 \uac1c\uc7ac\ubb3c\uc740 1.0, \ub450\uaebc\uc6b4 \uac1c\uc7ac\ubb3c\uc740 0.5 \ubc94\uc704\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc218\uce58\ub294 A681 \uc790\uccb4\uc5d0\uc11c \uace0\uc815\ub418\ub294 \uac83\uc774 \uc544\ub2c8\ub77c \uad6c\ub9e4\uc790\uc640 \uc81c\ucca0\uc18c \uac04\uc758 \ud611\uc758\ub97c \ud1b5\ud574 \uacb0\uc815\ub418\ubbc0\ub85c \uc8fc\ubb38\uc11c\uc5d0 \uba85\uc2dc\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc911\uc2ec\ubd80\uc5d0 \uae30\uacf5, \ud30c\uc774\ud551 \ub610\ub294 \uac70\uc2dc\uc801 \ubd84\ub9ac\uac00 \uc5c6\ub294 \uad6c\uc870\uc784\uc744 \ud655\uc778\ud558\ub294 \ub9e4\ud06c\ub85c \uc5d0\uce6d \ud14c\uc2a4\ud2b8\uc640 \ub354\ubd88\uc5b4, \ub354 \ud070 \ub2e8\uba74\uc5d0 \ub300\ud55c \ub0b4\ubd80 \uac74\uc804\uc131 \uac80\uc0ac\ub97c \uc704\ud55c \uc804\uccb4 \ucd08\uc74c\ud30c \uac80\uc0ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud574\ub2f9\ub418\ub294 \uacbd\uc6b0 EN 10204 3.1\uc5d0 \ub530\ub77c \uc2e4\uc81c \ud654\ud559 \uc131\ubd84, \uc6a9\uc735 \ubc0f \uc815\uc81c \uacf5\uc815, E45 \uccad\uc815\ub3c4 \uacb0\uacfc \ubc0f \ucd08\uc74c\ud30c \uac80\uc0ac \uc2b9\uc778 \uc11c\uba85\uc774 \ud3ec\ud568\ub41c \uacf5\uc778 \uacf5\uc7a5 \uc2dc\ud5d8 \uc778\uc99d\uc11c\ub97c \uc694\uad6c\ud574\uc57c \ud558\uba70, \ub2e8\uc21c\ud55c \ud654\ud559 \uc131\ubd84\ud45c\ub9cc \uc81c\ucd9c\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-sourcing-esr-d2-1-2379-round-bar-and-plate\" class=\"wp-block-heading\">ESR D2\/1.2379 \uc6d0\ud615 \ubd09 \ubc0f \ud310\uc7ac \uc870\ub2ec<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"752\" height=\"423\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/02\/D2-TOOL-STEEL-STOCKS.jpg\" alt=\"D2 \uacf5\uad6c\uac15 \uc2a4\ud1a1\" class=\"wp-image-3084\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/02\/D2-TOOL-STEEL-STOCKS.jpg 752w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/02\/D2-TOOL-STEEL-STOCKS-300x169.jpg 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/02\/D2-TOOL-STEEL-STOCKS-18x10.jpg 18w\" sizes=\"auto, (max-width: 752px) 100vw, 752px\" \/><figcaption class=\"wp-element-caption\">D2 \uacf5\uad6c\uac15 \uc2a4\ud1a1<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 \uc0c1\uae30 \uaddc\uaca9 \uc694\uac74\uc744 \ucda9\uc871\ud558\ub294 \ud611\ub825 \uc81c\ucca0\uc18c\ub97c \ud1b5\ud574 ESR D2(1.2379) \uc6d0\ud615 \ubd09\uac15 \ubc0f \ud310\uc7ac\ub97c \uacf5\uae09\ud569\ub2c8\ub2e4. \uacf5\uae09\ub418\ub294 \uc81c\ud488\uc740 EN 10204 3.1 \uaddc\uaca9\uc5d0 \ub530\ub77c \ubc1c\ud589\ub41c \uc81c\ucca0\uc18c \uc2dc\ud5d8 \uc99d\uba85\uc11c\uc640 \ud654\ud559 \ubd84\uc11d, \uae08\uc18d \uc870\uc9c1 \uac80\uc0ac, \uacbd\ub3c4 \uc2dc\ud5d8, \uce58\uc218 \uac80\uc0ac \ub4f1\uc744 \ud3ec\ud568\ud55c \uc99d\ube59 \uc11c\ub958\ub97c \ud3ec\ud568\ud569\ub2c8\ub2e4. \uc81c\ud488\uc740 \ud45c\uc900 \uc81c\ucca0\uc18c \uaddc\uaca9 \uae38\uc774\ub85c \ucd9c\ud558\ub418\uba70, \ub300\ub7c9 \ucee8\ud14c\uc774\ub108 \uc8fc\ubb38\uc5d0 \ucd5c\uc801\ud654\ub41c \uc801\uc7ac \ubc29\uc2dd\uc744 \ucc44\ud0dd\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9cc\uc57d \uadc0\ud558\uc758 \uc6a9\ub3c4\uac00 \uc704\uc5d0\uc11c \uc124\uba85\ud55c \ubc94\uc8fc(\uc587\uc740 \uc808\uc0ad\ub0a0, \uace0\uad11\ud0dd \uae08\ud615, \ubb34\uac70\uc6b4 \ub2e8\uba74 \ub610\ub294 \ubc18\ubcf5 \ud558\uc911 \ud234\ub9c1) \uc911 \ud558\ub098\uc5d0 \ud574\ub2f9\ud55c\ub2e4\uba74, D2 \ub610\ub294 1.2379\ub77c\ub294 \uba85\uce6d\ub9cc\uc73c\ub85c \ucda9\ubd84\ud558\ub2e4\uace0 \uc0dd\uac01\ud558\uae30\ubcf4\ub2e4\ub294 \ub2e4\uc74c \uc8fc\ubb38 \uc2dc \uc6a9\uc735 \uacbd\ub85c\ub97c \ud655\uc778\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>Why ESR D2 (1.2379) Is Specified for Precision Industrial Blades A Recurring Order Pattern Worth Explaining One order pattern stood out clearly enough to warrant explanation. A cutting tool manufacturer in S\u00e3o Paulo, Brazil, that supplies circular blades, slitter knives, and shear blades across the metallurgical, plastics, textile, rubber, food, and packaging industries has placed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16714,"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-16713","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 v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Why ESR D2 (1.2379) Is Specified for Precision Industrial Blades - AoboSteel<\/title>\n<meta name=\"description\" content=\"Standard D2 chips and mis-polishes in thin cutting edges. 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