{"id":15978,"date":"2026-06-19T09:40:09","date_gmt":"2026-06-19T01:40:09","guid":{"rendered":"https:\/\/aobosteel.com\/?p=15978"},"modified":"2026-06-19T09:40:11","modified_gmt":"2026-06-19T01:40:11","slug":"is-a2-steel-the-same-as-304","status":"publish","type":"post","link":"https:\/\/aobosteel.com\/ko\/blog\/is-a2-steel-the-same-as-304\/","title":{"rendered":"A2\uac15\uc740 304\uac15\uacfc \uac19\uc740 \uc7ac\uc9c8\uc778\uac00\uc694?"},"content":{"rendered":"<h1 class=\"wp-block-heading has-text-align-center\" id=\"h-a2-steel-is-a2-the-same-as-304\">A2\uac15: A2\uac15\uc740 304\uac15\uacfc \ub3d9\uc77c\ud55c\uac00\uc694?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">&quot;A2&quot;\uac00 \uac15\uc885\uc778\uc9c0 \uccb4\uacb0 \ubd80\ud488 \ud45c\uc2dc\uc778\uc9c0\uc5d0 \ub530\ub77c \ub2e4\ub985\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac15\ucca0 \ub4f1\uae09\uc73c\ub85c\ub294 \uc544\ub2d9\ub2c8\ub2e4. <a href=\"https:\/\/aobosteel.com\/ko\/a2-tool-steel\/\">A2 \uacf5\uad6c\uac15<\/a> A2 \uacf5\uad6c\uac15\uacfc 304 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc644\uc804\ud788 \ub2e4\ub978 \uae08\uc18d\uc785\ub2c8\ub2e4. A2 \uacf5\uad6c\uac15\uc740 \uace0\ud0c4\uc18c \uacf5\uae30 \uacbd\ud654\ud615 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uac15\uc73c\ub85c \uc790\uc131\uc744 \ub760\uace0 \uc5f4\ucc98\ub9ac\ub85c \uacbd\ud654\ub418\uba70 \ubcf4\ud638\ub418\uc9c0 \uc54a\uc740 \uc0c1\ud0dc\ub85c \ub450\uba74 \ub179\uc774 \uc2ac\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uccb4\uacb0 \ubd80\ud488 \ud45c\uc2dc\ub85c\ub294 \uadf8\ub807\uc2b5\ub2c8\ub2e4. &quot;A2&quot;\ub77c\uace0 \uac01\uc778\ub41c \ubcfc\ud2b8, \ub108\ud2b8 \ub610\ub294 \uc640\uc154\ub294 ISO 3506 A2 \ub4f1\uae09\uc758 \ud2b9\uc131\uc744 \ub098\ud0c0\ub0b4\uba70, \uc774\ub294 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 304 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc73c\ub85c \ub9cc\ub4e4\uc5b4\uc9d1\ub2c8\ub2e4. \uc774 \uc7ac\uc9c8\uc740 \ubd80\uc2dd\uc5d0 \uac15\ud558\uace0, \uc5f4\ucc98\ub9ac\ub85c \uacbd\ud654\ub420 \uc218 \uc5c6\uc73c\uba70, \uc77c\ubc18\uc801\uc73c\ub85c \ube44\uc790\uc131\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud63c\ub3d9\uc744 \ud53c\ud558\ub824\uba74 A2\uac00 \ub098\ud0c0\ub098\ub294 \ub9e5\ub77d\uc744 \ud56d\uc0c1 \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4. \uc2e4\uc9c8\uc801\uc73c\ub85c \uce7c, \uae08\ud615 \ube14\ub85d, \ub2e4\uc774 \ub610\ub294 \ud380\uce58\ub97c \ub2e4\ub8e8\ub294 \uacbd\uc6b0 A2 \uacf5\uad6c\uac15\uc77c \uac00\ub2a5\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4. \ubcfc\ud2b8, \ub108\ud2b8 \ub610\ub294 \uc640\uc154\uc5d0 &quot;A2&quot;\ub77c\uace0 \ud45c\uc2dc\ub418\uc5b4 \uc788\ub2e4\uba74 A2 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15(304)\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774\uc81c \uac01 \uc720\ud615\uc744 \uc790\uc138\ud788 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-a2-tool-steel\" class=\"wp-block-heading\">A2 \uacf5\uad6c\uac15<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A2 \uacf5\uad6c\uac15\uc740 \uc911\uac04 \ud569\uae08\uac15\uc785\ub2c8\ub2e4., <a href=\"https:\/\/aobosteel.com\/ko\/air-hardening-tool-steel\/\">\uacf5\uae30 \uacbd\ud654 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uac15<\/a>. \uc77c\ubc18\uc801\uc778 \uc870\uc131\uc740 \ud0c4\uc18c \uc57d 1.0%, \ud06c\ub86c \uc57d 5.0%, \ubab0\ub9ac\ube0c\ub374 \uc57d 1.0%, \ubc14\ub098\ub4d0 \uc57d 0.20%\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5% \ud06c\ub86c\ub9cc\uc73c\ub85c\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774 \ub418\uae30\uc5d0 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc73c\ubbc0\ub85c, \uc774 \uac15\ucca0\uc740 \uc2b5\uae30\uc5d0 \ub178\ucd9c\ub418\uba74 \ub179\uc774 \uc2ac\uac70\ub098 \ubcc0\uc0c9\ub429\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uac19\uc740 \ud654\ud559\uc801 \uc131\uc9c8 \ub355\ubd84\uc5d0 \uacf5\uae30 \uc911\uc5d0\uc11c \uacbd\ud654\ub420 \ub54c \uce58\uc218 \ubcc0\ud654\uac00 \ucd5c\uc18c\ud654\ub418\ubbc0\ub85c, \uacbd\ud654 \ud6c4\uc5d0\ub3c4 \uc815\ubc00\ud55c \uacf5\ucc28\ub97c \uc720\uc9c0\ud574\uc57c \ud558\ub294 \ubd80\ud488\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. (\uc815\ud655\ud568) <a href=\"https:\/\/aobosteel.com\/ko\/a2-tool-steel-heat-treatment-guide\/\">\uc5f4\ucc98\ub9ac<\/a> A2\uac15\uc758 \uacbd\ub3c4\ub97c 58~62 HRC\uae4c\uc9c0 \ub192\uc5ec \uc778\uc131\uacfc \ub0b4\ub9c8\ubaa8\uc131\uc758 \uade0\ud615\uc744 \uc774\ub8f9\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \uc6a9\ub3c4\ub85c\ub294 \ube14\ub7ad\ud0b9 \ud380\uce58, \ud2b8\ub9ac\ubc0d \ub2e4\uc774, \uc131\ud615 \uacf5\uad6c \ubc0f \ub9de\ucda4\ud615 \uce7c \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uad6d\uc81c\uc801\uc73c\ub85c A2 \uacf5\uad6c\uac15\uc740 \uc720\ub7fd\uc5d0\uc11c\ub294 DIN 1.2363, \uc77c\ubcf8\uc5d0\uc11c\ub294 JIS SKD12\ub77c\ub294 \uaddc\uaca9\uc73c\ub85c\ub3c4 \ud310\ub9e4\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-a2-stainless-304\" class=\"wp-block-heading\">A2 \uc2a4\ud14c\uc778\ub9ac\uc2a4(304)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ubcfc\ud2b8\ub098 \ub098\uc0ac\uc5d0 &quot;A2&quot;\ub77c\ub294 \ud45c\uc2dc\uac00 \uc788\uc73c\uba74 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uccb4\uacb0 \ubd80\ud488\uc5d0 \ub300\ud55c ISO 3506 \uaddc\uaca9\uc744 \uc900\uc218\ud568\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. &quot;A&quot;\ub294 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4\ub97c \uc758\ubbf8\ud558\uace0, &quot;2&quot;\ub294 \ud569\uae08\uad70\uc744 \ub098\ud0c0\ub0b4\ub294\ub370, \uc2e4\uc81c\ub85c\ub294 304\ud615 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A2 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ud06c\ub86c 18%\uc640 \ub2c8\ucf08 8%\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc73c\uba70, \uc774\ub7ec\ud55c \uc870\uc131\uc740 &quot;18-8&quot; \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc73c\ub85c \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4. \uc5f4\ucc98\ub9ac\ub85c\ub294 \uacbd\ud654\uc2dc\ud0ac \uc218 \uc5c6\uc73c\uba70, \ub0c9\uac04 \uac00\uacf5\uc744 \ud1b5\ud574\uc11c\ub9cc \uac15\ub3c4\ub97c \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub192\uc740 \ud06c\ub86c \ubc0f \ub2c8\ucf08 \ud568\ub7c9 \ub355\ubd84\uc5d0 \uc2b5\ud55c \ud658\uacbd\uc5d0\uc11c \ub6f0\uc5b4\ub09c \ub0b4\uc2dd\uc131\uc744 \uc790\ub791\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A2 \ud328\uc2a4\ub108 \uac15\uc7ac\uc758 \ub3d9\ub4f1 \ub4f1\uae09\uc73c\ub85c\ub294 \ubbf8\uad6d\uc758 AISI 304\uc640 \uc720\ub7fd\uc758 EN 1.4301\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"h-side-by-side-comparison\" class=\"wp-block-heading\">\ub098\ub780\ud788 \ube44\uad50\ud558\uae30<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\uc7ac\uc0b0<\/td><td>A2 \uacf5\uad6c\uac15<\/td><td>A2 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \/ 304<\/td><\/tr><tr><td>\uc720\ud615<\/td><td>\ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uac15<\/td><td>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/td><\/tr><tr><td>\uc8fc\uc694 \ud569\uae08<\/td><td>1.0% C, 5.0% Cr, 1.0% Mo, 0.20% V<\/td><td>~18% Cr, ~8% Ni<\/td><\/tr><tr><td>\ub0b4\uc2dd\uc131<\/td><td>\ub0ae\uc73c\uba74 \ub179\uc774 \uc2ac \uac83\uc785\ub2c8\ub2e4.<\/td><td>\ub192\uace0 \ub179\uc5d0 \uac15\ud568<\/td><\/tr><tr><td>\uc5f4\ucc98\ub9ac\ub85c \uacbd\ud654 \uac00\ub2a5<\/td><td>\ub124, \uacf5\uae30 \uacbd\ud654 \ubc29\uc2dd\uc785\ub2c8\ub2e4.<\/td><td>\uc544\ub2c8\uc694, \ub0c9\uac04 \uac00\uacf5\uc73c\ub85c\ub9cc \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uc790\uc11d<\/td><td>\uc608<\/td><td>\uc544\ub2c8\uc694, \ub300\ubd80\ubd84 \ube44\uc790\uc131\uc785\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uc77c\ubc18\uc801\uc778 \uacbd\ub3c4<\/td><td>58~62 HRC<\/td><td>HRB\ub85c \uce21\uc815\ud588\uc744 \ub54c \ub354 \ubd80\ub4dc\ub7ec\uc6c0<\/td><\/tr><tr><td>\ub3d9\ub4f1\ud55c \ub4f1\uae09<\/td><td>DIN 1.2363, JIS SKD12<\/td><td>AISI 304, EN 1.4301<\/td><\/tr><tr><td>\uc77c\ubc18\uc801\uc778 \uc0ac\uc6a9<\/td><td>\ud380\uce58, \uc131\ud615 \ub2e4\uc774, \uae08\ud615, \uce7c<\/td><td>\ubcfc\ud2b8, \ub108\ud2b8, \ub098\uc0ac, \uc640\uc154<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"h-how-to-tell-which-one-you-have\" class=\"wp-block-heading\">\uc5b4\ub5a4 \uc885\ub958\uc778\uc9c0 \uc5b4\ub5bb\uac8c \uc54c \uc218 \uc788\uc744\uae4c\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ubb38\ub9e5\uc744 \ubcf4\uba74 \ub2f5\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub098\uc0ac\uc0b0\uc774 \uc788\ub294 \ud558\ub4dc\uc6e8\uc5b4\ub294 \uac70\uc758 \ud56d\uc0c1 A2 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15(304)\uc73c\ub85c \ub9cc\ub4e4\uc5b4\uc9c0\ub294 \ubc18\uba74, \uae08\ud615\uac15, \ub2e4\uc774 \ub610\ub294 \uc808\uc0ad \uacf5\uad6c\uc640 \uac19\uc740 \ub450\uaebc\uc6b4 \ube14\ub85d\uc740 A2 \uacf5\uad6c\uac15\uc73c\ub85c \ub9cc\ub4e4\uc5b4\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub798\ub3c4 \ud655\uc778\uc774 \ud544\uc694\ud558\uc2dc\uba74 \ub2e4\uc74c \uc138 \uac00\uc9c0\ub97c \uac04\ub2e8\ud788 \ud655\uc778\ud574 \ubcf4\uc138\uc694. <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc790\uc11d \ud14c\uc2a4\ud2b8: \uc2dc\ub8cc\uc5d0 \uc790\uc11d\uc744 \ub300\ubcf4\uc2ed\uc2dc\uc624. \uae08\uc18d\uc774 \uc790\uc11d\uc5d0 \uac15\ud558\uac8c \ub04c\ub824 \uc81c\uc790\ub9ac\uc5d0 \ucc29 \ub2ec\ub77c\ubd99\uc73c\uba74 A2 \uacf5\uad6c\uac15\uc77c \uac00\ub2a5\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4. \ud2b9\ud788 \uc5f4\ucc98\ub9ac\ub41c \uc2dc\ub8cc\uc5d0\uc11c \uc790\uc11d\uc758 \ub04c\ub9bc\uc774 \uac70\uc758 \uc5c6\uac70\ub098 \uc804\ud600 \uc5c6\ub2e4\uba74 A2 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15(304)\uc77c \uac00\ub2a5\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4. \ub0c9\uac04 \uac00\uacf5\ub41c \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc57d\ud55c \uc790\uc131\uc744 \ubcf4\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\uacbd\ub3c4 \ud14c\uc2a4\ud2b8: \uc0d8\ud50c\ub85c \uc720\ub9ac\ubcd1\uc744 \uae01\uc5b4\ubcf4\uc138\uc694. \uc0d8\ud50c\uc774 \uc720\ub9ac\ub97c \uc27d\uac8c \uae01\uc73c\uba74 \uacbd\ud654\ub41c A2 \uacf5\uad6c\uac15(\uacbd\ub3c4 58-62 HRC)\uc785\ub2c8\ub2e4. \uc720\ub9ac\ub97c \uae01\uc9c0 \ubabb\ud558\uba74 \ub354 \ubb34\ub978 A2 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15(304)\uc77c \uac00\ub2a5\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4. <\/li>\n\n\n\n<li>\ub179 \ud14c\uc2a4\ud2b8: \uae08\uc18d \ud45c\uba74\uc5d0 \ubb3c\uc774\ub098 \uc0b0\uc131 \uc8fc\uc2a4 \ud55c \ubc29\uc6b8\uc744 \ub5a8\uc5b4\ub728\ub9ac\uace0 \ud558\ub8fb\ubc24 \ub3d9\uc548 \uadf8\ub300\ub85c \ub450\uc2ed\uc2dc\uc624. \ud574\ub2f9 \ubd80\uc704\uc758 \uc0c9\uc774 \ubcc0\ud558\uac70\ub098 \ub179\uc774 \uc2ac\uba74 A2 \uacf5\uad6c\uac15\uc785\ub2c8\ub2e4. \ud574\ub2f9 \ubd80\uc704\uac00 \uae68\ub057\ud558\uac8c \ub2e6\uc774\uba74 A2 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15(304)\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-frequently-asked-questions\" class=\"wp-block-heading\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1781832756732\"><strong class=\"schema-faq-question\">A2 \uacf5\uad6c\uac15\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc778\uac00\uc694?<\/strong> <p class=\"schema-faq-answer\"> \uc544\ub2c8\uc694. \ud06c\ub86c \ud568\ub7c9\uc774 5%\uc5d0 \ubd88\uacfc\ud558\uc5ec \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc5d0 \ud544\uc694\ud55c \ucd5c\uc18c \ud568\ub7c9\uc778 \uc57d 10.5%\uc5d0 \ubbf8\uce58\uc9c0 \ubabb\ud558\ubbc0\ub85c \uae30\ub984\uce60\uc774\ub098 \ucf54\ud305\uc744 \ud558\uc9c0 \uc54a\uc73c\uba74 \ub179\uc774 \uc2ac\uac8c \ub429\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1781832770411\"><strong class=\"schema-faq-question\">A2 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc790\uc131\uc774 \uc788\ub098\uc694?<\/strong> <p class=\"schema-faq-answer\">\uc77c\ubc18\uc801\uc73c\ub85c\ub294 \uc544\ub2d9\ub2c8\ub2e4. A2(304)\ub294 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4\uc774\uba70 \ube44\uc790\uc131\uc774\uc9c0\ub9cc, \uc2ec\ud55c \ub0c9\uac04 \uac00\uacf5\uc744 \uac70\uce58\uba74 \uc57d\uac04 \uc790\uc131\uc744 \ub760\uac8c \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud0c4\uc18c\uac15\uc774\ub098 \uacf5\uad6c\uac15\ub9cc\ud07c \uc790\uc11d\uc744 \uac15\ud558\uac8c \ub04c\uc5b4\ub2f9\uae30\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4.<\/p> <\/div> <\/div>\n\n\n\n<ul class=\"wp-block-yoast-seo-related-links yoast-seo-related-links\">\n<li><a href=\"https:\/\/aobosteel.com\/ko\/420-stainless-steel\/\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 | 1.2083 | 2Cr13<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/a2-steel-composition\/\">A2\uac15 \uad6c\uc131 | A2 \uacf5\uad6c\uac15 \ud654\ud559 \uc131\ubd84 \uc548\ub0b4<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/blog\/is-a2-tool-steel-wear-resistant\/\">A2 \uacf5\uad6c\uac15\uc740 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub6f0\uc5b4\ub09c\uac00\uc694? \uacbd\ub3c4, \uc6a9\ub3c4 \ubc0f \ube44\uad50<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/420-stainless-steel-heat-treatment\/\">420\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc | \uacbd\ud654, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/blog\/knife-steel-types\/\">\uce7c\ub0a0 \uac15\uc7ac \uc885\ub958: \uc62c\ubc14\ub978 \uac15\uc7ac \uc120\ud0dd \ubc29\ubc95<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>A2 Steel: Is A2 the Same as 304? It depends on whether \u201cA2\u201d names a steel grade or a fastener marking. As a steel grade, no. A2 tool steel and 304 stainless steel are completely different metals. A2 tool steel is a high-carbon, air-hardening cold work tool steel that is magnetic, hardens by heat treatment, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15979,"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-15978","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 v28.5 (Yoast SEO v28.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Is A2 Steel the Same as 304? - AoboSteel<\/title>\n<meta name=\"description\" content=\"No. A2 tool steel and 304 stainless are different metals, but a bolt marked A2 (ISO 3506) is made from 304. Here is how to tell them apart.\" \/>\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\/is-a2-steel-the-same-as-304\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Is A2 Steel the Same as 304?\" \/>\n<meta property=\"og:description\" content=\"No. A2 tool steel and 304 stainless are different metals, but a bolt marked A2 (ISO 3506) is made from 304. 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\uacf5\uad6c\uac15\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc778\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":" No. It contains only 5% chromium, below the roughly 10.5% minimum required for stainless steel, so it rusts unless oiled or coated.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/blog\/is-a2-steel-the-same-as-304\/#faq-question-1781832770411","position":2,"url":"https:\/\/aobosteel.com\/blog\/is-a2-steel-the-same-as-304\/#faq-question-1781832770411","name":"A2 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc790\uc131\uc774 \uc788\ub098\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Generally no. A2 (304) is austenitic and non-magnetic, though heavy cold working can make it slightly magnetic. It never attracts a magnet as strongly as carbon or tool steel.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304-300x300.avif",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304-768x768.avif",768,768,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304-12x12.avif",12,12,true]},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"A2 Steel: Is A2 the Same as 304? It depends on whether \u201cA2\u201d names a steel grade or a fastener marking. As a steel grade, no. A2 tool steel and 304 stainless steel are completely different metals. A2 tool steel is a high-carbon, air-hardening cold work tool steel that is magnetic, hardens by heat treatment,&hellip;","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304.avif",1254,1254,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304.avif",1254,1254,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/Is-A2-Steel-the-Same-as-304-12x12.avif",12,12,true]},"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":"<a href=\"https:\/\/aobosteel.com\/ko\/blog\/category\/blog\/\" rel=\"category tag\">Blog<\/a>","rttpg_excerpt":"A2 Steel: Is A2 the Same as 304? It depends on whether \u201cA2\u201d names a steel grade or a fastener marking. As a steel grade, no. A2 tool steel and 304 stainless steel are completely different metals. A2 tool steel is a high-carbon, air-hardening cold work tool steel that is magnetic, hardens by heat treatment,&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/posts\/15978","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=15978"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/posts\/15978\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media\/15979"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=15978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/categories?post=15978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/tags?post=15978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}