{"id":16938,"date":"2026-04-24T08:34:30","date_gmt":"2026-04-24T08:34:30","guid":{"rendered":"https:\/\/www.dgcrane.com\/?post_type=posts&#038;p=16938"},"modified":"2026-04-24T08:35:47","modified_gmt":"2026-04-24T08:35:47","slug":"overhead-and-gantry-cranes-main-girder","status":"publish","type":"posts","link":"https:\/\/www.dgcrane.com\/ko\/posts\/overhead-and-gantry-cranes-main-girder\/","title":{"rendered":"\uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc6a9 \uc8fc \uac70\ub354: \uc644\ubcbd\ud55c \uac15\ucca0 \uac00\uc774\ub4dc"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>\ubaa9\ucc28<\/p><nav><ul><li><a href=\"#low-carbon-steel-top-choice-for-light-small-overhead-and-gantry-cranes\">\uc800\ud0c4\uc18c\uac15: \uacbd\ub7c9 \ubc0f \uc18c\ud615 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \uc18c\uc7ac<\/a><ul><li><a href=\"#q-235-b-en-s-235-jr-astm-a-283\">Q235B (EN S235JR\/ASTM A283)<\/a><\/li><li><a href=\"#q-235-c-q-235-d-en-s-235-j-2-astm-a-1011\">Q235C\/Q235D (EN S235J2\/ASTM A1011)<\/a><\/li><\/ul><\/li><li><a href=\"#high-strength-low-alloy-steel-ideal-for-medium-heavy-duty-overhead-and-gantry-cranes\">\uace0\uac15\ub3c4 \uc800\ud569\uae08\uac15: \uc911\ud615 \ubc0f \ub300\ud615 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc5d0 \uc774\uc0c1\uc801\uc785\ub2c8\ub2e4.<\/a><ul><li><a href=\"#q-355-b-en-s-355-jr-astm-a-572-gr-50\">Q355B (EN S355JR\/ASTM A572 Gr.50)<\/a><\/li><li><a href=\"#q-390-b-en-s-355-j-2-astm-a-572-gr-60\">Q390B(EN S355J2\/ASTM A572 Gr.60)<\/a><\/li><li><a href=\"#q-420-b-en-s-420-ml-astm-a-572-gr-70\">Q420B (EN S420ML\/ASTM A572 Gr.70)<\/a><\/li><\/ul><\/li><li><a href=\"#special-steel-choice-for-extreme-conditions\">\ud2b9\uc218\uac15: \uadf9\ud55c \ud658\uacbd\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc5d0 \uc801\ud569\ud55c \uc18c\uc7ac<\/a><ul><li><a href=\"#q-460-ne-ens-460-nl-astm-a-537-cl-2\">Q460NE (ENS460NL\/ASTM A537 Cl.2)<\/a><\/li><li><a href=\"#q-355-nh-en-s-355-j-2-w-astm-a-588\">Q355NH (EN S355J2W\/ASTM A588)<\/a><\/li><li><a href=\"#q-450-nqr-1-en-s-355-k-2-w-astm-a-633-grade-c-d\">Q450NQR1 (EN S355K2W\/ASTM A633 \ub4f1\uae09 C\/D)<\/a><\/li><li><a href=\"#q-690-e-en-s-690-ql-astm-a-514-gr-b\">Q690E (EN S690QL\/ASTM A514 Gr.B)<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Overhead-and-Gantry-Cranes-Main-Girder-The-Ultimate-Steel-Guide.png\" alt=\"\" class=\"wp-image-16939\"><\/figure>\n\n\n\n<p>\ud06c\ub808\uc778\uc758 \uc8fc\uc694 \ud558\uc911 \uc9c0\uc9c0 \uad6c\uc870\ubb3c\uc778 \uc8fc \ub300\ub4e4\ubcf4\ub294 \ud06c\ub808\uc778 \ubb34\uac8c\uc758 \uc0c1\ub2f9 \ubd80\ubd84\uc744 \ucc28\uc9c0\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. <a href=\"https:\/\/www.dgcrane.com\/ko\/overhead-cranes\/\">\uc624\ubc84 \ud5e4\ub4dc \ud06c\ub808\uc778<\/a> \ud06c\ub808\uc778 \uc804\uccb4 \uc911\ub7c9 \uc911 \uc8fc \uac70\ub354\uac00 \ucc28\uc9c0\ud558\ub294 \ube44\uc911\uc740 40%~60%\uc774\uba70, \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc758 \uacbd\uc6b0 \uc8fc \uac70\ub354 \uc911\ub7c9\uc774 30%\ub97c \ucd08\uacfc\ud569\ub2c8\ub2e4. \uc8fc \uac70\ub354\uc758 \uac15\uc7ac\ub294 \ud06c\ub808\uc778\uc758 \uc804\uccb4 \ud558\uc911 \uc9c0\uc9c0\ub825, \uc6b4\uc6a9 \uc548\uc804\uc131 \ubc0f \ucd1d\ube44\uc6a9\uc744 \uc9c1\uc811\uc801\uc73c\ub85c \uacb0\uc815\ud569\ub2c8\ub2e4. \uc911\uad6d\uc911\uc7a5\ube44\uc0b0\uc5c5\ud611\ud68c \uc790\ub8cc\uc5d0 \ub530\ub974\uba74, 65% \uc774\uc0c1\uc758 \uad6c\uc870\ubb3c \ud30c\uc190 \uc0ac\uace0\uac00 \uc8fc \uac70\ub354 \uac15\uc7ac\uc758 \ubd80\uc801\ud569\uacfc \uc6b4\uc6a9 \uc870\uac74\uc73c\ub85c \uc778\ud574 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc7a5\ube44 \uc704\ud5d8\uc744 \uc904\uc774\uace0 \uc804\uccb4 \uc120\uc815 \uacfc\uc815\uc744 \ucd5c\uc801\ud654\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \ub4dc\ub9ac\uace0\uc790 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc758 \uc8fc\uc694 \uac15\uc7ac\uc5d0 \ub300\ud55c \ud30c\ub77c\ubbf8\ud130 \ube44\uad50\ud45c\ub97c \uc791\uc131\ud588\uc2b5\ub2c8\ub2e4. \uc544\ub798\uc5d0\uc11c\ub294 \uc8fc \uac70\ub354\uc5d0 \uc801\ud569\ud55c \ub2e4\uc591\ud55c \uac15\uc7ac\uc758 \ud575\uc2ec \ud2b9\uc131\uc744 \ubd84\uc11d\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\uac15\ucca0 \uc7ac\uc9c8<\/th><th>\uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/th><th>\uc911\uad6d (GB\/GB\/T)<\/th><th>\uc720\ub7fd(EN10025)<\/th><th>\ubbf8\uad6d (ASTM\/AISC)<\/th><th>\ud56d\ubcf5 \uac15\ub3c4(MPa)<\/th><\/tr><\/thead><tbody><tr><td>\uc800\ud0c4\uc18c\uac15<\/td><td>10\ud1a4 \uc774\ud558, \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778<\/td><td>Q235B\/Q235C\/Q235D<\/td><td>S235JR\/S235J2<\/td><td>A283\/A1011<\/td><td>\u2265235<\/td><\/tr><tr><td rowspan=\"3\">\uace0\uac15\ub3c4 \uc800\ud569\uae08\uac15<\/td><td>10\ud1a4~50\ud1a4, \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778<\/td><td>Q355B<\/td><td>S355JR<\/td><td>A572 Gr.50<\/td><td>\u2265355<\/td><\/tr><tr><td rowspan=\"2\">50\ud1a4~300\ud1a4\uae09 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778<\/td><td>Q390B<\/td><td>S355J2<\/td><td>A572 Gr.60<\/td><td>\u2265390<\/td><\/tr><tr><td>Q420B<\/td><td>S420ML<\/td><td>A572 Gr.70<\/td><td>\u2265420<\/td><\/tr><tr><td rowspan=\"4\">\ud2b9\uc218\uc6a9\ub3c4\uac15<\/td><td rowspan=\"3\">\uc800\uc628, \uace0\ucda9\uaca9 \uc9c0\uc5ed, \ucd94\uc6b4 \uae30\ud6c4, \ud56d\uad6c<\/td><td>Q460NE<\/td><td>S460NL<\/td><td>A537 Cl.2<\/td><td>\u2265460<\/td><\/tr><tr><td>Q355NH<\/td><td>S355J2W<\/td><td>A633 Gr.C\/D<\/td><td>\u2265355<\/td><\/tr><tr><td>Q690E<\/td><td>S690QL<\/td><td>A514 Gr.B<\/td><td>\u2265690<\/td><\/tr><tr><td>\ub0b4\ud6c4\uc131, \uc625\uc678 \uc0ac\uc6a9, \uc720\uc9c0\ubcf4\uc218 \uac10\uc18c<\/td><td>Q450NQR1<\/td><td>S355K2W<\/td><td>A709 Gr.50W<\/td><td>\u2265450<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">\uc8fc\uc694 \uac15\uc7ac \uc18c\uc7ac\uc758 \ub9e4\uac1c\ubcc0\uc218 \ube44\uad50\ud45c<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"low-carbon-steel-top-choice-for-light-small-overhead-and-gantry-cranes\">\uc800\ud0c4\uc18c\uac15: \uacbd\ub7c9 \ubc0f \uc18c\ud615 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \uc18c\uc7ac<\/h2>\n\n\n\n<p>\uc6b0\uc218\ud55c \uac00\uc18c\uc131, \uc6a9\uc811\uc131 \ubc0f \ube44\uc6a9 \ud6a8\uc728\uc131\uc744 \uac16\ucd98 \uc800\ud0c4\uc18c\uac15(\uc608: Q235B\/S235JR\/A283)\uc740 \uacbd\ud558\uc911 \ubc0f \uc800\uc791\uc5c5 \ub4f1\uae09 \uc6a9\ub3c4\uc758 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778 \uc8fc \uac70\ub354\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc8fc\ub958\uc758 \uacbd\uc81c\uc801\uc778 \uc18c\uc7ac\ub85c, \uacbd\ub7c9 \uc18c\ud615 \ud06c\ub808\uc778(\u226420t)\uc6a9 \uc18c\uc7ac \uc2dc\uc7a5\uc758 \uc57d 221,100\ud1a4\uc744 \uc810\uc720\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"q-235-b-en-s-235-jr-astm-a-283\"><strong>Q235B (EN S235JR\/ASTM A283)<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1584\" height=\"1056\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q235B.jpg\" alt=\"\" class=\"wp-image-16941\" srcset=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q235B.jpg 1584w, https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q235B-1536x1024.jpg 1536w\" sizes=\"(max-width: 1584px) 100vw, 1584px\" \/><\/figure>\n\n\n\n<p>Q235B\ub294 \ub9ac\ud504\ud305 \uc7a5\ube44\uc5d0 \uac00\uc7a5 \ud754\ud558\uac8c \uc0ac\uc6a9\ub418\ub294 \uc800\ud0c4\uc18c\uac15\uc73c\ub85c, \ud2b9\ud788 5\ud1a4\uae09\uacfc \uac19\uc740 \uacbd\ub7c9 \uc800\ud558\uc911 \ud06c\ub808\uc778\uc5d0 \ub9ce\uc774 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. <a href=\"https:\/\/www.dgcrane.com\/ko\/double-girder-overhead-crane\/\">\uc774\uc911 \uac70\ub354 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778<\/a> \ucc3d\uace0 \ubc0f 3\ud1a4 \ub2e8\uc77c \uac70\ub354 \uc624\ubc84\ud5e4\ub4dc\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. <a href=\"https:\/\/www.dgcrane.com\/ko\/gantry-cranes\/\">\uac20\ud2b8\ub9ac \ud06c\ub808\uc778<\/a> \uc6cc\ud06c\uc20d\uc5d0\uc11c \uc0dd\uc0b0\ub429\ub2c8\ub2e4. \uc8fc\uc694 \ud654\ud559 \uc870\uc131 \ubc0f \uae30\uacc4\uc801 \ud2b9\uc131\uc740 \uc544\ub798 \ud45c\uc5d0 \ub098\uc640 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud654\ud559\uc131\ubd84<\/th><th>\ud488\uc9c8 \uc810\uc218<\/th><th>\uae30\uacc4\uc801 \ud2b9\uc131<\/th><th>\ub9e4\uac1c\ubcc0\uc218<\/th><\/tr><\/thead><tbody><tr><td>\ud0c4\uc18c(C)<\/td><td>\u22640.2%<\/td><td>\ud56d\ubcf5\uc751\ub825<\/td><td>\u2265235MPa<\/td><\/tr><tr><td>\uc2e4\ub9ac\ucf58(Si)<\/td><td>\u22640.35%<\/td><td>\uc778\uc7a5 \uac15\ub3c4<\/td><td>370-500MPa<\/td><\/tr><tr><td>\ub9dd\uac04(Mn)<\/td><td>0.3%-0.7%<\/td><td>\ucda9\uaca9 \uc778\uc131<\/td><td>\u226527 J (20\u2103\uc5d0\uc11c\uc758 \ucda9\uaca9 \uc2dc\ud5d8)<\/td><\/tr><tr><td>\ud669(S)<\/td><td>\u22640.045%<\/td><td>\ubc31\ubd84\uc728 \uc2e0\uc7a5\ub960<\/td><td>\u226521%(\ub450\uaed8\u226416mm)<\/td><\/tr><tr><td>\uc778(P)<\/td><td>\u22640.045%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\uc704\uc758 \uc131\ub2a5 \uc9c0\ud45c\ub97c \ubc14\ud0d5\uc73c\ub85c Q235B\uc758 \ud575\uc2ec \uc7a5\uc810\uc744 \ub354\uc6b1 \uba85\ud655\ud558\uac8c \ubd84\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ub192\uc740 \uc800\ud0c4\uc18c \ud568\ub7c9, \ud0c1\uc6d4\ud55c \uc6a9\uc811 \uc131\ub2a5:<\/strong> \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778\uacfc \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc758 \uc8fc \uac70\ub354\ub294 \uc870\ubc00\ud558\uace0 \ubcf5\uc7a1\ud55c \uc6a9\uc811 \uad6c\uc870\ub97c \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. Q235B\ub294 \ud0c4\uc18c \ud568\ub7c9\uc774 \ub0ae\uc544 \uc77c\ubc18\uc801\uc778 \uc6a9\uc811 \uacf5\uc815\uc73c\ub85c\ub3c4 \ub192\uc740 \uc6a9\uc811 \ud488\uc9c8\uc744 \ud655\ubcf4\ud560 \uc218 \uc788\uc73c\uba70, \uc6a9\uc811 \uacb0\ud568 \ubc1c\uc0dd \uac00\ub2a5\uc131\uc744 \uc904\uc774\uace0 \uc0dd\uc0b0 \uc548\uc815\uc131\uc744 \ub192\uc5ec\uc90d\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc801\ub2f9\ud55c \ub0b4\uad6c\uc131\uc73c\ub85c \uc77c\ubc18\uc801\uc778 \ucda9\uaca9\uc5d0 \uacac\ub525\ub2c8\ub2e4.<\/strong> \uc774 \uc18c\uc7ac\ub294 20\u2103 \uc0c1\uc628\uc5d0\uc11c 27J \uc774\uc0c1\uc758 \ucda9\uaca9 \uc5d0\ub108\uc9c0\ub97c \uac00\uc9c0\ubbc0\ub85c \uc6b0\uc218\ud55c \uc778\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778 \uc791\ub3d9 \uc2dc \ubc1c\uc0dd\ud558\ub294 \ucda9\uaca9\uacfc \uc9c4\ub3d9\uc744 \ud761\uc218\ud558\uace0, \uae09\uaca9\ud55c \ud558\uc911 \ubcc0\ud654\ub85c \uc778\ud55c \ucde8\uc131 \ud30c\uad34\uc5d0 \uc800\ud56d\ud558\uc5ec \ub354\uc6b1 \uc548\uc804\ud558\uace0 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uad6c\uc870\uc801 \uc131\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc800\ub834\ud55c \ube44\uc6a9, \ud0c1\uc6d4\ud55c \ube44\uc6a9 \ud6a8\uc728\uc131:<\/strong> Q235B\ub294 \uc0dd\uc0b0 \ube44\uc6a9\uc774 \ube44\uad50\uc801 \ub0ae\uc2b5\ub2c8\ub2e4. \ub610\ud55c, \ub300\ubd80\ubd84\uc758 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778 \uac15\uad6c\uc870\ubb3c\uc758 \uc801\uc6a9 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud558\ub294 \uc885\ud569\uc801\uc778 \uc131\ub2a5\uc744 \uc81c\uacf5\ud558\uc5ec \uc548\uc804\uc131\uacfc \uc2e0\ub8b0\uc131\uc744 \ubcf4\uc7a5\ud558\uba74\uc11c \uc81c\uc870 \ube44\uc6a9\uc744 \ud6a8\uacfc\uc801\uc73c\ub85c \uc808\uac10\ud558\uace0 \ub192\uc740 \ube44\uc6a9 \ud6a8\uc728\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\ud558\uc9c0\ub9cc Q235B\ub294 \uc7ac\ub8cc \uc790\uccb4\uc758 \uac15\ub3c4 \ub4f1\uae09 \ubc0f \uc131\ub2a5 \ud2b9\uc131\uc0c1\uc758 \ud55c\uacc4\ub85c \uc778\ud574 \ub2e4\uc74c\uacfc \uac19\uc740 \uc81c\uc57d \uc0ac\ud56d\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ub0ae\uc740 \ud56d\ubcf5 \uac15\ub3c4: <\/strong>Q235B\ub294 \ud56d\ubcf5 \uac15\ub3c4\uac00 235MPa\uc5d0 \ubd88\uacfc\ud569\ub2c8\ub2e4. \uace0\ud558\uc911 \uc870\uac74\uc5d0\uc11c \uc694\uad6c\ub418\ub294 \uac15\ub3c4\ub97c \ucda9\uc871\ud558\ub824\uba74 \ub354 \ub450\uaebc\uc6b4 \uac15\ud310\uc774 \ud544\uc694\ud558\uba70, \uc774\ub294 \uad6c\uc870\ubb3c\uc758 \ubb34\uac8c\ub97c \ud06c\uac8c \uc99d\uac00\uc2dc\ucf1c \uace0\ud558\uc911 \ubc0f \uace0\ube48\ub3c4 \uc0ac\uc6a9\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub0b4\uc2dd\uc131\uc774 \ub5a8\uc5b4\uc9d0:<\/strong> \ud06c\ub808\uc778 \uac15\ucca0 \uad6c\uc870\ubb3c\uc740 \uc7a5\uae30\uac04 \uc678\ubd80 \ud658\uacbd\uc5d0 \ub178\ucd9c\ub418\uae30 \ub54c\ubb38\uc5d0 Q235B\ub294 \ubd80\uc2dd\ub418\uae30 \uc26c\uc6b0\ubbc0\ub85c \ubd80\uc2dd \ubc29\uc9c0 \ucf54\ud305\uc774 \ud544\uc694\ud558\uba70, \ub530\ub77c\uc11c \ubd80\uc2dd\uc131\uc774 \ub9e4\uc6b0 \uac15\ud55c \ud658\uacbd\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc800\uc628 \ud658\uacbd\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. <\/strong>Q235B\ub294 \uc0c1\uc628\uc5d0\uc11c\ub9cc \ucda9\uaca9 \uc778\uc131\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4. \uc800\uc628\uc5d0\uc11c\ub294 \ucde8\uc131 \ud30c\uad34\uac00 \ubc1c\uc0dd\ud558\uae30 \uc27d\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc800\uc628 \ud658\uacbd\uc5d0\uc11c \uc9c1\uc811 \uc0ac\uc6a9\ud560 \uacbd\uc6b0 \ucde8\uc131 \ud30c\uad34\ub85c \uc778\ud55c \uc548\uc804 \uc704\ud5d8\uc774 \ubc1c\uc0dd\ud558\ubbc0\ub85c \uc800\uc628\uc6a9 \uac15\uc7ac \ub610\ub294 Q355D\/E \ub4f1\uae09 \uac15\uc7ac\ub97c \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"q-235-c-q-235-d-en-s-235-j-2-astm-a-1011\"><strong>Q235C\/Q235D (EN S235J2\/ASTM A1011)<\/strong><\/h3>\n\n\n\n<p>Q235C\uc640 Q235D\ub294 Q235B\uc758 \uc800\uc628 \uc131\ub2a5 \ud5a5\uc0c1\ud615 \ud569\uae08\uc785\ub2c8\ub2e4. \uc774 \ud569\uae08\ub4e4\uc740 \uc800\uc628 \uc778\uc131\uc774 \ub354\uc6b1 \uc548\uc815\uc801\uc774\uace0 \ubd88\uc21c\ubb3c \ud568\ub7c9\uc774 \uc801\uc73c\uba70 \uaca8\uc6b8\ucca0 \ucde8\uc131 \ubc1c\uc0dd \uac00\ub2a5\uc131\uc774 \ub0ae\uc544 \uc548\uc804\uc131, \ub0b4\ucda9\uaca9\uc131 \ubc0f \uc800\uc628 \uc548\uc815\uc131\uc5d0 \ub300\ud55c \uc694\uad6c \uc0ac\ud56d\uc774 \ub192\uc740 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.&nbsp;<\/p>\n\n\n\n<p>Q235C\ub294 0\u2103\uc5d0\uc11c 27J \uc774\uc0c1\uc758 \ucda9\uaca9 \uc5d0\ub108\uc9c0\ub97c \uc694\uad6c\ud558\uc9c0\ub9cc, -10\u2103 \uc774\ud558\uc5d0\uc11c\ub294 \uc778\uc131\uc774 \ud06c\uac8c \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4. Q235D\ub294 -20\u2103\uc5d0\uc11c 27J \uc774\uc0c1\uc758 \ucda9\uaca9 \uc5d0\ub108\uc9c0\ub97c \uc694\uad6c\ud558\uba70, \uaca8\uc6b8\ucca0 \uc7a5\uae30\uac04 \uc625\uc678 \uc0ac\uc6a9 \uc2dc \uc800\uc628 \ucde8\uc131 \ud30c\uad34\ub97c \ud6a8\uacfc\uc801\uc73c\ub85c \ubc29\uc9c0\ud558\uc5ec \ucd5c\uace0 \uc218\uc900\uc758 \uc548\uc804\uc131\uc744 \uc81c\uacf5\ud558\uc9c0\ub9cc, \uc0dd\uc0b0 \ube44\uc6a9\uacfc \uac00\uaca9\uc774 \ub354 \ub192\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"high-strength-low-alloy-steel-ideal-for-medium-heavy-duty-overhead-and-gantry-cranes\">\uace0\uac15\ub3c4 \uc800\ud569\uae08\uac15: \uc911\ud615 \ubc0f \ub300\ud615 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc5d0 \uc774\uc0c1\uc801\uc785\ub2c8\ub2e4.<\/h2>\n\n\n\n<p>\uace0\uac15\ub3c4 \uc800\ud569\uae08\uac15(HSLA)\uc740 \ud0c4\uc18c \uad6c\uc870\uac15\uc5d0 V, Nb, Ti \ub4f1\uc758 \ubbf8\ub7c9 \ud569\uae08 \uc6d0\uc18c\ub97c \ucca8\uac00\ud558\uc5ec \uc81c\uc870\ub429\ub2c8\ub2e4. \uac15\ub3c4\uc640 \uac00\uacf5\uc131\uc758 \uade0\ud615\uc774 \uc6b0\uc218\ud558\uba70, \ud604\uc7ac \ud06c\ub808\uc778 \uc8fc\ube54\uc758 &quot;\uc8fc\ub825 \uc18c\uc7ac&quot;\ub85c \uc0ac\uc6a9\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uad6d\ub0b4 \ud06c\ub808\uc778 \uc8fc\ube54 \ubc0f \ub2e8\ubd80\ube54 \uc18c\uc7ac \uc2dc\uc7a5\uc5d0\uc11c 581\ud1a4 \uc774\uc0c1\uc744 \ucc28\uc9c0\ud558\uace0 \uc788\uc73c\uba70, 801\ud1a4 \uc774\uc0c1\uc758 \uc77c\ubc18\uc6a9 \ud06c\ub808\uc778\uc5d0 \uac00\uc7a5 \ub9ce\uc774 \uc0ac\uc6a9\ub418\ub294 \uc18c\uc7ac\uc785\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \uc911\ub300\ud615 \uc791\uc5c5 \ud658\uacbd\uc5d0 \uc801\ud569\ud558\uc5ec \uc0ac\uc6a9 \uc694\uad6c\uc0ac\ud56d\uc744 \ucda9\uc871\ud558\uace0 \ube44\uc6a9\uc744 \uc808\uac10\ud560 \uc218 \uc788\uc5b4 \uad6c\ub9e4\uc790\uc5d0\uac8c &quot;\uc548\uc815\uc801\uc778 \uc120\ud0dd&quot;\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"q-355-b-en-s-355-jr-astm-a-572-gr-50\"><strong>Q355B (EN S355JR\/ASTM A572 Gr.50)<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1152\" height=\"768\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q355B.jpg\" alt=\"\" class=\"wp-image-16942\"><\/figure>\n\n\n\n<p>\ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \uc800\ud569\uae08 \uace0\uac15\ub3c4\uac15\uc778 Q355B\ub294 \uc5c5\uacc4\uc758 &quot;\uc8fc\ub825 \uc18c\uc7ac&quot;\ub85c\uc11c A3~A5 \ub4f1\uae09\uc758 \uc911\uc18c\ud615 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud654\ud559\uc131\ubd84 <\/th><th>\ud488\uc9c8 \uc810\uc218<\/th><th>\uae30\uacc4\uc801 \ud2b9\uc131<\/th><th>\ub9e4\uac1c\ubcc0\uc218<\/th><\/tr><\/thead><tbody><tr><td>\ud0c4\uc18c(C)<\/td><td>\u22640.24%<\/td><td>\ud56d\ubcf5\uc751\ub825<\/td><td>\u2265355MPa<\/td><\/tr><tr><td>\uc2e4\ub9ac\ucf58(Si)<\/td><td>\u22640.55%<\/td><td>\uc778\uc7a5 \uac15\ub3c4<\/td><td>470-630MPa<\/td><\/tr><tr><td>\ub9dd\uac04(Mn)<\/td><td>\u22641.6%<\/td><td>\ucda9\uaca9 \uc778\uc131<\/td><td>\u226534 J (20\u2103\uc5d0\uc11c\uc758 \ucda9\uaca9 \uc2dc\ud5d8)<\/td><\/tr><tr><td>\ud669(S)<\/td><td>\u22640.03%<\/td><td>\ubc31\ubd84\uc728 \uc2e0\uc7a5\ub960<\/td><td>\u226521% (\ub450\uaed8\u226416mm)<\/td><\/tr><tr><td>\uc778(P)<\/td><td>\u22640.035%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\uc774\ub7ec\ud55c \ud575\uc2ec \ub9e4\uac1c\ubcc0\uc218\ub294 Q355B\uac00 \ud06c\ub808\uc778\uc758 \uc8fc\uc694 \uc18c\uc7ac\uac00 \ub420 \uc218 \uc788\ub3c4\ub85d \ud558\ub294 \ud575\uc2ec \uc694\uc18c\uc774\uba70, \ud2b9\ud788 \ub2e4\uc74c\uacfc \uac19\uc740 \uc7a5\uc810\uc73c\ub85c \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ub192\uc740 \ud56d\ubcf5 \uac15\ub3c4 \ube44\uc728, \uacbd\ub7c9 \uc124\uacc4: <\/strong>\uac15\ud310 \ub450\uaed8\uac00 16mm\ub97c \ucd08\uacfc\ud560 \uacbd\uc6b0, Q355B\uc758 \ud56d\ubcf5\uac15\ub3c4\ub294 Q235B\ubcf4\ub2e4 \uc57d 51% \ub192\uc544 \ub3d9\uc77c\ud55c \ud558\uc911 \uc9c0\uc9c0 \uc6a9\ub7c9\uc5d0\uc11c 15%~25%\uc758 \ubb34\uac8c \uac10\uc18c \ud6a8\uacfc\ub97c \uac00\uc838\uc635\ub2c8\ub2e4. \uc774\ub294 \ud06c\ub808\uc778\uc758 \uc790\uc911\uacfc \uacf5\uc7a5\uc758 \ud558\uc911 \uc9c0\uc9c0 \ubd80\ub2f4\uc744 \ubaa8\ub450 \uc904\uc5ec\uc90d\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub0ae\uc740 \ud0c4\uc18c \ud568\ub7c9, \uc6b0\uc218\ud55c \uc6a9\uc811\uc131:<\/strong> \uc6a9\uc811 \uc911 \ub0c9\uac04 \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc740 \ub0ae\uc2b5\ub2c8\ub2e4. Q355B\uc758 \ub450\uaed8\uac00 16mm \uc774\ud558\uc778 \uacbd\uc6b0, \uc608\uc5f4\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \ud544\uc694\ud558\uc9c0 \uc54a\uc544 \uc9c1\uc811 \uc6a9\uc811\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4. \uc774\ub294 \uc0dd\uc0b0 \uc8fc\uae30\ub97c \ub2e8\ucd95\ud558\uace0 \uc0dd\uc0b0 \ud6a8\uc728\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud0c1\uc6d4\ud55c \uc800\uc628 \uc778\uc131:<\/strong> Q355B\ub294 \uc601\ud558 20\u2103\uc5d0\uc11c \ucda9\uaca9 \uc2dc\ud5d8\uc744 \ud1b5\uacfc\ud558\ub294 \ub4f1 \uc800\uc628 \uc801\uc751\uc131\uc774 \ub6f0\uc5b4\ub0a9\ub2c8\ub2e4. \ucd94\uc6b4 \uc9c0\uc5ed\uc774\ub098 \ub192\uc740 \uc778\uc131\uc774 \uc694\uad6c\ub418\ub294 \uad6c\uc870\ubb3c\uc5d0 \uc801\ud569\ud558\uba70, \uc800\uc628 \ud658\uacbd\uc5d0\uc11c \ucde8\uc131 \ud30c\uad34\ub97c \ud6a8\uacfc\uc801\uc73c\ub85c \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Q355B\ub294 \uc804\ubc18\uc801\uc73c\ub85c \uc6b0\uc218\ud55c \uc131\ub2a5\uc744 \uc81c\uacf5\ud558\uc9c0\ub9cc, \ud2b9\ud788 \uc800\uc628 \ubc0f \ubd80\uc2dd\uc131 \ud658\uacbd, \ud6c4\ud310 \uc6a9\uc811, \ube44\uc6a9 \ubc0f \uac00\uacf5 \ub09c\uc774\ub3c4 \uce21\uba74\uc5d0\uc11c \ub69c\ub837\ud55c \ud55c\uacc4\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uad6c\uccb4\uc801\uc778 \ub2e8\uc810\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc800\uc628 \uc131\ub2a5 \uc81c\ud55c:<\/strong> Q355B\ub294 20\u2103\uc5d0\uc11c\ub9cc \uc801\ud569\ud55c \ucda9\uaca9 \uc778\uc131\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4. 0\u2103 \uc774\ud558\uc5d0\uc11c\ub294 \uc778\uc131\uc774 \uae09\uaca9\ud788 \uac10\uc18c\ud558\uc5ec \uc800\uc628 \uc800\uc7a5\uace0\ub098 \uc601\ud558\uc758 \uc2e4\uc678 \ud658\uacbd\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uacbd\uc6b0 \uc800\uc628 \ucde8\uc131 \uc704\ud5d8\uc774 \ub192\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uadf9\ud55c\uc758 \uc800\uc628 \ud658\uacbd\uc5d0\uc11c\ub294 \uc0ac\uc6a9\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub450\uaebc\uc6b4 \ud310\uc7ac \uc6a9\uc811\uc758 \ub192\uc740 \ub09c\uc774\ub3c4:<\/strong> Q355B\uc758 \ub450\uaed8\uac00 25mm\ub97c \ucd08\uacfc\ud558\uba74 \ud0c4\uc18c \ub2f9\ub7c9\ube44\uac00 \ud06c\uac8c \uc99d\uac00\ud558\uc5ec \uc6a9\uc811 \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc774 \ub192\uc544\uc9d1\ub2c8\ub2e4. \uc6a9\uc811 \uc2dc \uc608\uc5f4 \ubc0f \uc5c4\uaca9\ud55c \uc628\ub3c4 \uc81c\uc5b4\uac00 \ud544\uc694\ud558\ubbc0\ub85c \uac00\uacf5 \uc808\ucc28\uac00 \ub354\uc6b1 \ubcf5\uc7a1\ud574\uc9d1\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>Q235B\ubcf4\ub2e4 \ube44\uc6a9\uc774 \ub354 \ub192\uc74c:<\/strong> \uc77c\ubc18\uc801\uc73c\ub85c Q355B\ub294 Q235B\ubcf4\ub2e4 10%~15% \ub354 \ube44\uc309\ub2c8\ub2e4. \uacbd\ubd80\ud558 \uc6a9\ub3c4\ub098 \ube44\ud558\uc911 \uc9c0\uc9c0 \ubd80\ud488\uc758 \uacbd\uc6b0, Q355B\ub97c \uc0ac\uc6a9\ud558\uba74 \ube44\uc6a9\uc801\uc778 \uc774\uc810 \uc5c6\uc774 \uc131\ub2a5 \ud5a5\uc0c1\uc744 \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"q-390-b-en-s-355-j-2-astm-a-572-gr-60\"><strong>Q390B(EN S355J2\/ASTM A572 Gr.60<\/strong>)<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1248\" height=\"832\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q390B.jpg\" alt=\"\" class=\"wp-image-16944\"><\/figure>\n\n\n\n<p>390MPa \uc774\uc0c1\uc758 \ud56d\ubcf5\uac15\ub3c4\ub97c \uac00\uc9c4 Q390B\ub294 \ud0c1\uc6d4\ud55c \ud558\uc911 \uc9c0\uc9c0\ub825\uacfc \uad6c\uc870\uc801 \uc548\uc804\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub3d9\uc77c\ud55c \ud558\uc911 \uc870\uac74\uc5d0\uc11c Q355B \ub300\ube44 \uac15\uc7ac \uc18c\ube44\ub7c9\uc744 \uc57d 151\ud1a4 \uc808\uac10\ud558\uc5ec \uace0\uac15\ub3c4\uac00 \uc694\uad6c\ub418\ub294 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud654\ud559\uc131\ubd84 <\/th><th>\ud488\uc9c8 \uc810\uc218<\/th><th>\uae30\uacc4\uc801 \ud2b9\uc131<\/th><th>\ub9e4\uac1c\ubcc0\uc218<\/th><\/tr><\/thead><tbody><tr><td>\ud0c4\uc18c(C)<\/td><td>\u22640.2%<\/td><td>\ud56d\ubcf5\uc751\ub825<\/td><td>\u2265390MPa<\/td><\/tr><tr><td>\uc2e4\ub9ac\ucf58(Si)<\/td><td>\u22640.5%<\/td><td>\uc778\uc7a5 \uac15\ub3c4<\/td><td>490-650MPa<\/td><\/tr><tr><td>\ub9dd\uac04(Mn)<\/td><td>\u22641.7%<\/td><td>\ucda9\uaca9 \uc778\uc131<\/td><td>\u226534 J (20\u2103\uc5d0\uc11c\uc758 \ucda9\uaca9 \uc2dc\ud5d8)<\/td><\/tr><tr><td>\ud669(S)<\/td><td>\u22640.035%<\/td><td>\ubc31\ubd84\uc728 \uc2e0\uc7a5\ub960<\/td><td>\u226520% (\ub450\uaed8\u226416mm)<\/td><\/tr><tr><td>\uc778(P)<\/td><td>\u22640.035%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Q390B\ub294 \ud0c4\uc18c \ud568\ub7c9\uc774 \ub0ae\uc544 \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1\uc5d0 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uadf8\ub7fc\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 \ub6f0\uc5b4\ub09c \ub0b4\ub9c8\ubaa8\uc131\uacfc \uc801\ub2f9\ud55c \ub0b4\uc2dd\uc131\uc744 \uc9c0\ub2c8\uace0 \uc788\uc5b4 \ub300\uae30 \uc870\uac74 \ubc0f \ud2b9\uc815 \ud654\ud559 \ubb3c\uc9c8\uc5d0 \uc758\ud55c \uce68\uc2dd\uc744 \uacac\ub51c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"q-420-b-en-s-420-ml-astm-a-572-gr-70\"><strong>Q420B (EN S420ML\/ASTM A572 Gr.70<\/strong>)<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1728\" height=\"1152\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q420B.jpg\" alt=\"\" class=\"wp-image-16945\" srcset=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q420B.jpg 1728w, https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q420B-1536x1024.jpg 1536w\" sizes=\"(max-width: 1728px) 100vw, 1728px\" \/><\/figure>\n\n\n\n<p>Q420B\ub294 \ucd08\uace0\uac15\ub3c4 \uac15\ucca0\uc785\ub2c8\ub2e4. <em>\uc911\uad6d \ucca0\uac15 \uad6c\uc870 \uc0b0\uc5c5\uc758 \ubc1c\uc804 \ud604\ud669 \ubc0f \ucca0\uac15 \uc218\uc694 \ubd84\uc11d<\/em>Q420B\ub294 \uace0\uac15\ub3c4 \uac15\ucca0 \uc911 501\ud1a4 \uc774\uc0c1\uc744 \ucc28\uc9c0\ud558\uba70, \uc8fc\ub85c \uac74\uc124, \uad50\ub7c9 \ub610\ub294 \uc911\uc7a5\ube44\uc6a9 \ucca0\uace8 \uad6c\uc870\ubb3c, \uc608\ub97c \ub4e4\uc5b4 50~300\ud1a4\uae09 \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc758 \uc8fc \ube54\uc774\ub098 \ud56d\ub9cc \uae30\uacc4 \ub4f1\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud654\ud559\uc131\ubd84 <\/th><th>\ud488\uc9c8 \uc810\uc218<\/th><th>\uae30\uacc4\uc801 \ud2b9\uc131<\/th><th>\ub9e4\uac1c\ubcc0\uc218<\/th><\/tr><\/thead><tbody><tr><td>\ud0c4\uc18c(C)<\/td><td>\u22640.2%<\/td><td>\ud56d\ubcf5\uc751\ub825<\/td><td>\u2265420MPa<\/td><\/tr><tr><td>\uc2e4\ub9ac\ucf58(Si)<\/td><td>\u22640.55%<\/td><td>\uc778\uc7a5 \uac15\ub3c4<\/td><td>520-680MPa<\/td><\/tr><tr><td>\ub9dd\uac04(Mn)<\/td><td>\u22641.7%<\/td><td>\ucda9\uaca9 \uc778\uc131<\/td><td>\u226534 J (20\u2103\uc5d0\uc11c\uc758 \ucda9\uaca9 \uc2dc\ud5d8)<\/td><\/tr><tr><td>\ud669(S)<\/td><td>\u22640.035%<\/td><td>\ubc31\ubd84\uc728 \uc2e0\uc7a5\ub960<\/td><td>\u226518% (\ub450\uaed8\u226416mm)<\/td><\/tr><tr><td>\uc778(P)<\/td><td>\u22640.035%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\ud558\uc9c0\ub9cc Q420B \uac15\ud310\uc758 \ub450\uaed8\uac00 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \ud56d\ubcf5 \uac15\ub3c4\ub294 \ub2e8\uacc4\uc801\uc73c\ub85c \uac10\uc18c\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ub450\uaed8\uac00 16mm \uc774\ud558\uc77c \ub54c\ub294 \ud56d\ubcf5 \uac15\ub3c4\uac00 420MPa \uc774\uc0c1\uc774\uc9c0\ub9cc, \ub450\uaed8\uac00 50mm\ub97c \ucd08\uacfc\ud558\uba74 \ud56d\ubcf5 \uac15\ub3c4\ub294 360MPa \uc774\uc0c1\uc73c\ub85c \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4. \ub530\ub77c\uc11c \ucd08\ud6c4\ud310 \uc801\uc6a9 \ubd84\uc57c\uc5d0\uc11c\ub294 \uc694\uad6c\ub418\ub294 \uac15\ub3c4\ub97c \ucda9\uc871\ud558\uae30 \uc704\ud574 \uacf5\uc815\uc744 \ucd5c\uc801\ud654\ud558\uac70\ub098 \ub354 \ub192\uc740 \ub4f1\uae09\uc758 \uac15\uc7ac\ub97c \uc120\ud0dd\ud574\uc57c \ud558\uba70, \uc774\uc5d0 \ub530\ub77c \ube44\uc6a9\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"special-steel-choice-for-extreme-conditions\">\ud2b9\uc218\uac15: \uadf9\ud55c \ud658\uacbd\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc5d0 \uc801\ud569\ud55c \uc18c\uc7ac<\/h2>\n\n\n\n<p>\ud2b9\uc218\uac15\uc740 \uadf9\ud55c \uc791\uc5c5 \ud658\uacbd\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778 \ubc0f \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc758 \uc8fc \uac70\ub354\uc5d0 \ub9de\ucda4 \uc81c\uc791\ub418\ub294 \uc18c\uc7ac\uc785\ub2c8\ub2e4. \uc800\ud0c4\uc18c\uac15\uc774\ub098 \uace0\uac15\ub3c4 \uc800\ud569\uae08\uac15\uacfc\ub294 \ub2ec\ub9ac, \uc815\ubc00\ud55c \ud569\uae08 \ube44\uc728\uacfc \uacf5\uc815 \ucd5c\uc801\ud654\ub97c \ud1b5\ud574 \uadf9\ud55c \uc800\uc628, \uace0\uc5fc\ubd84 \ubd84\ubb34, \uac15\ud55c \ubd80\uc2dd, \ucd08\ub300\ud615 \ud1a4\uc218 \uc911\ud558\uc911, \uace0\ube48\ub3c4 \uc5f0\uc18d \uc6b4\uc804 \ub4f1\uc758 \uc2dc\ub098\ub9ac\uc624\uc5d0\uc11c \uae30\uc874 \uac15\uc7ac\uc758 \uc131\ub2a5 \ud55c\uacc4\ub97c \uadf9\ubcf5\ud558\uc5ec \uac00\ud639\ud55c \ud658\uacbd\uc5d0\uc11c\uc758 \uc7a5\ube44 \uc548\uc804 \ubc0f \uc7a5\uae30 \uc6b4\uc804\uc744 \uc704\ud55c \ud575\uc2ec \uc18c\uc7ac\ub85c \uc790\ub9ac\ub9e4\uae40\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"q-460-ne-ens-460-nl-astm-a-537-cl-2\"><strong>Q460NE (ENS460NL\/ASTM A537 Cl.2)<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q460NE.jpg\" alt=\"\" class=\"wp-image-16946\"><\/figure>\n\n\n\n<p>Q460NE\ub294 \uadf9\ud55c\uc758 \uc791\uc5c5 \ud658\uacbd\uc5d0 \uc801\ud569\ud558\ub3c4\ub85d \ud2b9\ubcc4\ud788 \uc124\uacc4\ub41c \ub0b4\uc2dd\uc131 \uc800\ud569\uae08\uac15\uc785\ub2c8\ub2e4. \ub4f1\uae09\uc758 &quot;N&quot;\uc740 \ub0b4\ud6c4\uc131\uc744 \ub098\ud0c0\ub0b4\uba70, &quot;E&quot;\ub294 -40\u00b0C\uc758 \uc800\uc628 \ucda9\uaca9 \ub4f1\uae09\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc77c\ubc18 \uac15\ucca0\uacfc \ube44\uad50\ud558\uc5ec, Q460NE\ub294 \uace0\ud558\uc911 \uad6c\uc870\ubb3c\uc758 \uac15\ub3c4 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud558\uba70 \uadf9\ud55c\uc758 \uc800\uc628, \uace0\uc2b5\ub3c4 \ubc0f \uc5fc\uc218 \ubd84\ubb34 \ud658\uacbd\uc5d0\uc11c \uc7a5\uae30\uac04 \uc548\uc815\uc801\uc73c\ub85c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc8fc\uc694 \uc131\ub2a5 \ub9e4\uac1c\ubcc0\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud654\ud559\uc131\ubd84 <\/th><th>\ud488\uc9c8 \uc810\uc218<\/th><th>\uae30\uacc4\uc801 \ud2b9\uc131<\/th><th>\ub9e4\uac1c\ubcc0\uc218<\/th><\/tr><\/thead><tbody><tr><td>\ud0c4\uc18c(C)<\/td><td>\u22640.18%<\/td><td>\ud56d\ubcf5\uc751\ub825<\/td><td>\u2265460MPa<\/td><\/tr><tr><td>\uc2e4\ub9ac\ucf58(Si)<\/td><td>\u22640.55%<\/td><td>\uc778\uc7a5 \uac15\ub3c4<\/td><td>540-720MPa<\/td><\/tr><tr><td>\ub9dd\uac04(Mn)<\/td><td>1.0%-1.6%<\/td><td>\ucda9\uaca9 \uc778\uc131<\/td><td>\u226520 J (\uc601\ud558 40\u2103\uc5d0\uc11c\uc758 \ucda9\uaca9 \uc2dc\ud5d8)<\/td><\/tr><tr><td>\ud669(S)<\/td><td>\u22640.02%<\/td><td>\ubc31\ubd84\uc728 \uc2e0\uc7a5\ub960<\/td><td>\u226517% (\ub450\uaed8\u226416mm)<\/td><\/tr><tr><td>\uc778(P)<\/td><td>\u22640.025%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\ub0b4\ud6c4\uc131 \ubc0f \uc800\uc628 \uc131\ub2a5\uc758 \uc774\uc911 \ud5a5\uc0c1\uc744 \uc704\ud574 Q460NE \ubc30\ud569\uc5d0 \ud2b9\uc815 \ud569\uae08 \uc6d0\uc18c\uac00 \ucca8\uac00\ub429\ub2c8\ub2e4. \uac01 \uc6d0\uc18c\uc758 \ud568\ub7c9 \ubc0f \uae30\ub2a5\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud569\uae08 \uc6d0\uc18c<\/th><th>\ucf58\ud150\uce20 \uc0c1\ud55c<\/th><th>\uc8fc\uc694 \uae30\ub2a5<\/th><\/tr><\/thead><tbody><tr><td>\ud06c\ub86c(Cr)<\/td><td>\u22640.30%<\/td><td>\ubd80\uc2dd \uc800\ud56d\uc131\uc744 \uac1c\uc120\ud558\uace0 \uc870\uc9c1 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\ub2c8\ucf08(Ni)<\/td><td>\u22640.80%<\/td><td>\uc800\uc628 \uc778\uc131\uc744 \ud06c\uac8c \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \uc5f0\uc131-\ucde8\uc131 \uc804\uc774 \uc628\ub3c4\ub97c \ub0ae\ucda5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uad6c\ub9ac(Cu)<\/td><td>\u22640.40%<\/td><td>\ub300\uae30 \ubd80\uc2dd \uc800\ud56d\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uc138\uc694<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\uc694\uc57d\ud558\uc790\uba74, Q460NE\ub294 \uc800\ud0c4\uc18c \uc124\uacc4\uc640 Cr, Ni, Cu \ub4f1\uc758 \ud569\uae08 \uc6d0\uc18c\uc758 \uc2dc\ub108\uc9c0 \ud6a8\uacfc\ub97c \ud1b5\ud574 \uace0\uc2b5\ub3c4 \ubc0f \uace0\uc5fc\ub3c4 \ud658\uacbd\uc758 \uae30\uacc4\uc801 \ud2b9\uc131\uacfc \ub0b4\uad6c\uc131 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc601\ud558 40\u2103\uc758 \uadf9\uc800\uc628\uc5d0\uc11c\ub3c4 Q460NE\ub294 \uc6b0\uc218\ud55c \ucda9\uaca9 \uc778\uc131\uc744 \uc720\uc9c0\ud558\uc5ec \uc800\uc628\uc73c\ub85c \uc778\ud55c \uc7ac\ub8cc \ucde8\uc131\uc744 \ud6a8\uacfc\uc801\uc73c\ub85c \ubc29\uc9c0\ud569\ub2c8\ub2e4. \uc774\ub294 \uadf9\ud55c \ucd94\uc704 \uc9c0\uc5ed\uc758 \ud1a0\ubaa9 \uacf5\uc0ac\uc5d0 \uacac\uace0\ud55c \uc548\uc804 \uc7a5\ubcbd\uc744 \uc81c\uacf5\ud558\uc5ec \uc7a5\ube44\uc758 \uc2e0\ub8b0\uc131\uacfc \uc6b4\uc601 \ud6a8\uc728\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"q-355-nh-en-s-355-j-2-w-astm-a-588\"><strong>Q355NH (EN S355J2W\/ASTM A588<\/strong>)<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1440\" height=\"960\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q355NH.jpg\" alt=\"\" class=\"wp-image-16947\"><\/figure>\n\n\n\n<p>Q355NH\ub294 \ub300\uae30 \ubd80\uc2dd \ubc29\uc9c0 \uac15\ud310\uc73c\ub85c, \ub0b4\ud6c4\uc131 \uac15\uc774\ub77c\uace0\ub3c4 \ud569\ub2c8\ub2e4. &quot;N&quot;\uacfc &quot;H&quot;\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub178\uba40\ub77c\uc774\uc9d5 \ucc98\ub9ac \ubc0f \uc800\uc628 \uc778\uc131 \ud5a5\uc0c1 \uc694\uad6c \uc0ac\ud56d\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \ub178\uba40\ub77c\uc774\uc9d5(\uc0c1\ubcc0\ud658 \uc628\ub3c4 \uc774\uc0c1\uc5d0\uc11c \uc720\uc9c0 \ud6c4 \uacf5\ub7ad)\uc740 \uacb0\uc815\ub9bd\uc744 \ubbf8\uc138\ud654\ud558\uc5ec \ub354\uc6b1 \ubbf8\uc138\ud55c \ud398\ub77c\uc774\ud2b8-\ud384\ub77c\uc774\ud2b8 \uad6c\uc870\ub97c \ud615\uc131\ud558\uace0 \ub450\uaed8 \ubc29\ud5a5\uc73c\ub85c \ubb3c\uc131\uc744 \ub354\uc6b1 \uade0\uc77c\ud558\uac8c \ub9cc\ub4ed\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud654\ud559\uc131\ubd84 <\/th><th>\ud488\uc9c8 \uc810\uc218<\/th><th>\uae30\uacc4\uc801 \ud2b9\uc131<\/th><th>\ub9e4\uac1c\ubcc0\uc218<\/th><\/tr><\/thead><tbody><tr><td>\ud0c4\uc18c(C)<\/td><td>\u22640.16%<\/td><td>\ud56d\ubcf5\uc751\ub825<\/td><td>\u2265355MPa<\/td><\/tr><tr><td>\uc2e4\ub9ac\ucf58(Si)<\/td><td>\u22640.5%<\/td><td>\uc778\uc7a5 \uac15\ub3c4<\/td><td>490-630MPa<\/td><\/tr><tr><td>\ub9dd\uac04(Mn)<\/td><td>0.5%-1.5%<\/td><td>\ucda9\uaca9 \uc778\uc131<\/td><td>\u226534 J (\uc601\ud558 40\u2103\uc5d0\uc11c\uc758 \ucda9\uaca9 \uc2dc\ud5d8)<\/td><\/tr><tr><td>\ud669(S)<\/td><td>\u22640.03%<\/td><td>\ubc31\ubd84\uc728 \uc2e0\uc7a5\ub960<\/td><td>\u226517% (\ub450\uaed8\u226416mm)<\/td><\/tr><tr><td>\uc778(P)<\/td><td>\u22640.03%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\uc800\ud0c4\uc18c\uac15\uacfc \ube44\uad50\ud588\uc744 \ub54c, Q355NH\ub294 \ud2b9\uc815 \ud569\uae08 \uc6d0\uc18c\ub97c \ucca8\uac00\ud568\uc73c\ub85c\uc368 \ub0b4\ud6c4\uc131\uc774 2~8\ubc30 \ud5a5\uc0c1\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud569\uae08 \uc6d0\uc18c<\/th><th>\ucf58\ud150\uce20 \uc0c1\ud55c<\/th><th>\uc8fc\uc694 \uae30\ub2a5<\/th><\/tr><\/thead><tbody><tr><td>\ud06c\ub86c(Cr)<\/td><td>0.4%-0.8%<\/td><td>\ubd80\uc2dd \uc800\ud56d\uc131\uc744 \uac1c\uc120\ud558\uace0 \uc870\uc9c1 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\ub2c8\ucf08(Ni)<\/td><td>\u22640.65%<\/td><td>\uc800\uc628 \uc778\uc131\uc744 \ud06c\uac8c \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \uc5f0\uc131-\ucde8\uc131 \uc804\uc774 \uc628\ub3c4\ub97c \ub0ae\ucda5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uad6c\ub9ac(Cu)<\/td><td>0.25%-0.55%<\/td><td>\ub300\uae30 \ubd80\uc2dd \uc800\ud56d\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uc138\uc694<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Q355NH\ub294 \uc77c\ubc18 \uad6c\uc870\uc6a9 \uac15\uc7ac\uc758 \uac15\ub3c4, \uc778\uc131, \uc6a9\uc811\uc131\uc744 \uc720\uc9c0\ud558\uba74\uc11c\ub3c4 \uace0\ud488\uc9c8 \uac15\uc7ac\uc758 \uc5f0\uc131, \ub0b4\uc2dd\uc131, \uace0\uc628 \uc800\ud56d\uc131, \ud53c\ub85c \uc800\ud56d\uc131\uc744 \uac16\ucd94\uace0 \uc788\uc74c\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubfd0\ub9cc \uc544\ub2c8\ub77c, Q355NH\uc758 \ub3c4\uc7a5\uc131\uc740 \uc77c\ubc18 \ud0c4\uc18c\uac15\ubcf4\ub2e4 1.5~10\ubc30 \ub6f0\uc5b4\ub0a9\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc7a6\uc740 \ub3c4\uc7a5 \ubc0f \uc720\uc9c0\ubcf4\uc218 \ud544\uc694\uc131\uc744 \uc904\uc5ec \uc625\uc678 \ud06c\ub808\uc778\uc758 \ucd1d \uc218\uba85\uc8fc\uae30 \ube44\uc6a9\uc744 \ud6a8\uacfc\uc801\uc73c\ub85c \uc808\uac10\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub179 \ubc29\uc9c0 \ubc0f \ubd80\uc2dd \ubc29\uc9c0 \uae30\ub2a5\uc73c\ub85c \ubd80\ud488\uc758 \uc218\uba85\uc744 \uc5f0\uc7a5\ud558\uace0 \uc7ac\ub8cc \uc18c\ubaa8\ub7c9\uc744 \uc904\uc5ec\uc8fc\uae30 \ub54c\ubb38\uc5d0 \uc625\uc678 \ubc0f \ud574\uc548 \ud658\uacbd\uacfc \uac19\uc740 \ubcf5\uc7a1\ud55c \uc791\uc5c5 \uc870\uac74\uc758 \ud06c\ub808\uc778 \uad6c\uc870 \ubd80\ud488\uc5d0 \uc801\ud569\ud55c \uac15\uc7ac\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"q-450-nqr-1-en-s-355-k-2-w-astm-a-633-grade-c-d\"><strong>Q450NQR1 (EN S355K2W\/ASTM A633 \ub4f1\uae09 C\/D)<\/strong>)<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1248\" height=\"832\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q450NQR1.jpg\" alt=\"\" class=\"wp-image-16948\"><\/figure>\n\n\n\n<p>Q450NQR1\uc740 \ubb34\uac8c\ub97c \uc904\uc774\uba74\uc11c\ub3c4 \uc6b0\uc218\ud55c \uc800\uc628 \ucda9\uaca9 \uc778\uc131\uacfc \ub300\uae30 \ubd80\uc2dd \uc800\ud56d\uc131\uc744 \uac16\ucd98 \uace0\uac15\ub3c4 \ub0b4\ud6c4\uc131 \uac15\uc7ac\ub85c, \ub2e4\uc591\ud55c \uadf9\ud55c \uae30\ud6c4 \uc870\uac74\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. NQR\uc740 \ub300\uae30 \ubd80\uc2dd \uc800\ud56d(\ub0b4\ud6c4\uc131) \uac15\uc7ac\ub97c \ub098\ud0c0\ub0b4\uba70, \uc625\uc678, \ud574\uc548 \ubc0f \uae30\ud0c0 \ubd80\uc2dd\uc131 \ud658\uacbd\uc5d0 \ud2b9\ud654\ub41c \uace0\uac15\ub3c4 \uc800\ud569\uae08\uac15\uc785\ub2c8\ub2e4. 1\uc740 \ub4f1\uae09 \uc2dc\ub9ac\uc988 \ubc88\ud638\ub85c, \ud2b9\uc815 \ud569\uae08 \ube44\uc728\uacfc \uc131\ub2a5 \uc218\uc900\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud654\ud559\uc131\ubd84 <\/th><th>\ud488\uc9c8 \uc810\uc218<\/th><th>\uae30\uacc4\uc801 \ud2b9\uc131<\/th><th>\ub9e4\uac1c\ubcc0\uc218<\/th><\/tr><\/thead><tbody><tr><td>\ud0c4\uc18c(C)<\/td><td>\u22640.12%<\/td><td>\ud56d\ubcf5\uc751\ub825<\/td><td>\u2265450MPa<\/td><\/tr><tr><td>\uc2e4\ub9ac\ucf58(Si)<\/td><td>\u22640.75%<\/td><td>\uc778\uc7a5 \uac15\ub3c4<\/td><td>\u2265550MPa<\/td><\/tr><tr><td>\ub9dd\uac04(Mn)<\/td><td>\u22641.5%<\/td><td>\ucda9\uaca9 \uc778\uc131<\/td><td>\u226560 J (\uc601\ud558 40\u2103\uc5d0\uc11c\uc758 \ucda9\uaca9 \uc2dc\ud5d8)<\/td><\/tr><tr><td>\ud669(S)<\/td><td>\u22640.008%<\/td><td>\ubc31\ubd84\uc728 \uc2e0\uc7a5\ub960<\/td><td>\u226520% (\ub450\uaed8\u226414mm)<\/td><\/tr><tr><td>\uc778(P)<\/td><td>\u22640.025%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\uc704\uc758 \uae30\ubcf8 \ud2b9\uc131\uc5d0\uc11c \uc54c \uc218 \uc788\ub4ef\uc774, Q450NQR1\uc740 \ud569\uae08 \uc6d0\uc18c\uc758 \uc815\ud655\ud55c \ube44\uc728 \ub355\ubd84\uc5d0 \uace0\uac15\ub3c4, \ub0b4\ud6c4\uc131 \ubc0f \uc800\uc628 \uc778\uc131\uc774\ub77c\ub294 \uc138 \uac00\uc9c0 \uc7a5\uc810\uc744 \ubaa8\ub450 \uac16\ucd94\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud569\uae08 \uc6d0\uc18c<\/th><th>\ucf58\ud150\uce20 \uc0c1\ud55c<\/th><th>\uc8fc\uc694 \uae30\ub2a5<\/th><\/tr><\/thead><tbody><tr><td>\ud06c\ub86c(Cr)<\/td><td>0.3%-1.25%<\/td><td>\ubd80\uc2dd \uc800\ud56d\uc131\uc744 \uac1c\uc120\ud558\uace0 \uc870\uc9c1 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\ub2c8\ucf08(Ni)<\/td><td>0.125-0.65%<\/td><td>\uc800\uc628 \uc778\uc131\uc744 \ud06c\uac8c \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \uc5f0\uc131-\ucde8\uc131 \uc804\uc774 \uc628\ub3c4\ub97c \ub0ae\ucda5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uad6c\ub9ac(Cu)<\/td><td>0.25%-0.55%<\/td><td>\ub300\uae30 \ubd80\uc2dd \uc800\ud56d\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uc138\uc694<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Q450NQR1\uc740 \ub0ae\uc740 \ud0c4\uc18c \ud568\ub7c9\uacfc \uadf9\ud788 \ub0ae\uc740 \ud669 \ud568\ub7c9\uc5d0 \ud06c\ub86c, \ub2c8\ucf08, \uad6c\ub9ac \ud569\uae08 \uc6d0\uc18c\uc758 \uc2dc\ub108\uc9c0 \ud6a8\uacfc\uac00 \ub354\ud574\uc838 \ub0b4\ud6c4\uc131\uac15 \uc0b0\uc5c5 \ud45c\uc900\uc744 \ucda9\uc871\ud558\ub294 \ud0c1\uc6d4\ud55c \uc885\ud569 \uc131\ub2a5\uc744 \uc790\ub791\ud569\ub2c8\ub2e4. \uace0\uac15\ub3c4, \ub0b4\ud6c4\uc131, \uc800\uc628 \uc778\uc131\uc758 \uade0\ud615\uc744 \uc774\ub8e8\uc5b4 \ud56d\ub9cc\uc774\ub098 \uc57c\uc678 \uc57c\uc801\uc7a5\uacfc \uac19\uc740 \uac00\ud639\ud55c \uc791\uc5c5 \ud658\uacbd\uc758 \ud06c\ub808\uc778\uc5d0 \uc774\uc0c1\uc801\uc778 \uc18c\uc7ac\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"q-690-e-en-s-690-ql-astm-a-514-gr-b\"><strong>Q690E (EN S690QL\/ASTM A514 Gr.B)<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1248\" height=\"832\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/04\/Q690E.jpg\" alt=\"\" class=\"wp-image-16949\"><\/figure>\n\n\n\n<p>Q690E\ub294 \uace0\uac15\ub3c4 \uc18c\uc7ac\uc785\ub2c8\ub2e4. \ub808\uc774\uc800 \uc6a9\uc811 \ubc0f \uc751\ub825 \uc644\ud654 \uacf5\uc815\uc744 \ud1b5\ud574 \ubb34\uac8c\ub97c 151\ud1a4 \uac10\uc18c\uc2dc\ud0a4\uace0, \ud558\uc911 \uc9c0\uc9c0\ub825\uc744 251\ud1a4 \uc99d\uac00\uc2dc\ud0a4\uba70, \ud53c\ub85c \uc218\uba85\uc744 \uc5c5\uacc4 \ud3c9\uade0 \ub300\ube44 371\ud1a4 \uc5f0\uc7a5\ud588\uc2b5\ub2c8\ub2e4. A7 \uc911\ud558\uc911 \uc791\uc5c5 \ub4f1\uae09\uc744 \ucda9\uc871\ud558\uba70, \uc57c\uae08 \uc0b0\uc5c5\uc758 300\ud1a4\uae09 \ub808\uc774\ub4e4 \ud06c\ub808\uc778\uc774\ub098 \uc870\uc120 \uc0b0\uc5c5\uc758 200\ud1a4\uae09 \uc120\uccb4 \ub2e8\uba74 \uc778\uc591 \ud06c\ub808\uc778\uacfc \uac19\uc740 \ub300\uc6a9\ub7c9 \uace0\uc131\ub2a5 \ud2b9\uc218 \ud06c\ub808\uc778\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c \ubc0f \uae30\uacc4\uc801 \ud2b9\uc131\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud654\ud559\uc131\ubd84 <\/th><th>\ud488\uc9c8 \uc810\uc218<\/th><th>\uae30\uacc4\uc801 \ud2b9\uc131<\/th><th>\ub9e4\uac1c\ubcc0\uc218<\/th><\/tr><\/thead><tbody><tr><td>\ud0c4\uc18c(C)<\/td><td>\u22640.18%<\/td><td>\ud56d\ubcf5\uc751\ub825<\/td><td>\u2265690MPa<\/td><\/tr><tr><td>\uc2e4\ub9ac\ucf58(Si)<\/td><td>\u22640.6%<\/td><td>\uc778\uc7a5 \uac15\ub3c4<\/td><td>770-940MPa<\/td><\/tr><tr><td>\ub9dd\uac04(Mn)<\/td><td>\u22642.0%<\/td><td>\ucda9\uaca9 \uc778\uc131<\/td><td>\u226534 J (\uc601\ud558 20\u2103\uc5d0\uc11c\uc758 \ucda9\uaca9 \uc2dc\ud5d8)<\/td><\/tr><tr><td>\ud669(S)<\/td><td>\u22640.025%<\/td><td>\ubc31\ubd84\uc728 \uc2e0\uc7a5\ub960<\/td><td>\u226514% (\ub450\uaed8\u226416mm)<\/td><\/tr><tr><td>\uc778(P)<\/td><td>\u22640.03%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\ud55c\ud3b8, \uacbd\ub7c9\ud654\uc640 \uace0\uac15\ub3c4\ub77c\ub294 \ub450 \uac00\uc9c0 \ubaa9\ud45c\ub97c \ub2ec\uc131\ud558\uae30 \uc704\ud574 Q690E\ub294 \ud2b9\uc815 \ud569\uae08 \uc6d0\uc18c\ub97c \ucca8\uac00\ud558\uc5ec \ubbf8\uc138 \uad6c\uc870\uc640 \ud2b9\uc131\uc744 \ucd5c\uc801\ud654\ud588\uc2b5\ub2c8\ub2e4. \uac01 \ud575\uc2ec \uc6d0\uc18c\uc758 \ud568\ub7c9 \ubc0f \uae30\ub2a5\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\ud569\uae08 \uc6d0\uc18c<\/th><th>\ucf58\ud150\uce20 \uc0c1\ud55c<\/th><th>\uc8fc\uc694 \uae30\ub2a5<\/th><\/tr><\/thead><tbody><tr><td>\ud06c\ub86c(Cr)<\/td><td>\u22641.0%<\/td><td>\ubd80\uc2dd \uc800\ud56d\uc131\uc744 \uac1c\uc120\ud558\uace0 \uc870\uc9c1 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\ub2c8\ucf08(Ni)<\/td><td>\u22640.8%<\/td><td>\uc800\uc628 \uc778\uc131\uc744 \ud06c\uac8c \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \uc5f0\uc131-\ucde8\uc131 \uc804\uc774 \uc628\ub3c4\ub97c \ub0ae\ucda5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uad6c\ub9ac(Cu)<\/td><td>\u22640.5%<\/td><td>\ub300\uae30 \ubd80\uc2dd \uc800\ud56d\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uc138\uc694<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\ub530\ub77c\uc11c Q690E\ub294 \ub9e4\uc6b0 \ub192\uc740 \ud558\uc911 \uc9c0\uc9c0\ub825\uc744 \uac16\ucd94\uace0 \uc788\uc5b4 \uc8fc \ube54\uc758 \ub2e8\uba74\uc801\uc744 \uc904\uc774\uba74\uc11c\ub3c4 \ud558\uc911 \uc0c1\ud55c\uc744 \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c \uc6b0\uc218\ud55c \uc800\uc628 \uc778\uc131\uacfc \ud53c\ub85c \uc800\ud56d\uc131\uc744 \uc9c0\ub2c8\uace0 \uc788\uc5b4 \uace0\uc8fc\ud30c, \uace0\ud558\uc911 \uc5f0\uc18d \uc6b4\uc804\uc5d0 \uc801\ud569\ud558\uc9c0\ub9cc \uac00\uaca9\uc774 \uc0c1\ub300\uc801\uc73c\ub85c \ub192\uc73c\ubbc0\ub85c \uc2e4\uc81c \ud558\uc911 \uc9c0\uc9c0 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ud06c\ub808\uc778 \ucca0\uace8 \uad6c\uc870 \uc790\uc7ac \ubd84\uc57c\uc5d0\uc11c 20\ub144 \uc774\uc0c1\uc758 \uc804\ubb38\uc131\uc744 \ubcf4\uc720\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. <strong>\ub514\uc9c0\ud06c\ub808\uc778<\/strong> \uc790\uc7ac \uc120\ud0dd\uc758 \ubaa8\ub4e0 \uc138\ubd80 \uc0ac\ud56d\uc774 \ub2e4\uc591\ud55c \ud1a4\uc218, \uc791\uc5c5 \ub4f1\uae09 \ubc0f \uc791\ub3d9 \ud658\uacbd\uc5d0\uc11c \uc7a5\ube44\uc758 \uc548\uc804 \uacc4\uc218, \uc218\uba85 \ubc0f \uc804\uccb4 \uc8fc\uae30 \ube44\uc6a9\uc744 \uc9c1\uc811\uc801\uc73c\ub85c \uacb0\uc815\ud55c\ub2e4\ub294 \uc810\uc744 \uae4a\uc774 \uc778\uc2dd\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. <strong>\ub514\uc9c0\ud06c\ub808\uc778<\/strong> \ub2f9\uc0ac\ub294 Q355B, Q460NE, Q690E\ub97c \ud3ec\ud568\ud55c \ub2e4\uc591\ud55c \uad6d\uc81c \ud45c\uc900 \uac15\uc885\uc744 \uace0\uac1d\uc758 \uc2e4\uc81c \uc791\uc5c5 \uc870\uac74(\uadf9\ud55c\uc758 \uc800\uc628, \uace0\uc5fc\ubd84 \ubd84\ubb34, \uc9c0\uc18d\uc801\uc778 \uace0\ud558\uc911 \uc791\uc5c5 \ub4f1)\uc5d0 \ub9de\ucdb0 \uc815\ud655\ud558\uac8c \uacf5\uae09\ud560 \uc218 \uc788\uc73c\uba70, \uc77c\ubc18\uc801\uc778 \uc2dc\ub098\ub9ac\uc624\uc640 \ud2b9\uc218 \uc2dc\ub098\ub9ac\uc624 \ubaa8\ub450\uc5d0 \ud544\uc694\ud55c \uc790\uc7ac\ub97c \uc644\ubcbd\ud558\uac8c \ucda9\uc871\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p><strong>\ub514\uc9c0\ud06c\ub808\uc778<\/strong> \ub2f9\uc0ac\ub294 \ub9de\ucda4\ud615 \uc790\uc7ac \uc0c1\ub2f4, \ub9de\ucda4\ud615 \uc808\ub2e8, \uc6a9\uc811 \ubc0f \ubd80\uc2dd \ubc29\uc9c0 \uc804\ucc98\ub9ac, \uadf8\ub9ac\uace0 \uc644\ubcbd\ud55c \ud488\uc9c8 \ucd94\uc801 \ubc0f \uc0ac\ud6c4 \ubcf4\uc99d \uc9c0\uc6d0\uc744 \ud3ec\ud568\ud558\ub294 \uc6d0\uc2a4\ud1b1 \uc885\ud569 \uc194\ub8e8\uc158\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub2f9\uc0ac\ub294 \uace0\uac1d\uc774 \uc790\uc7ac \uc120\uc815 \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \uc704\ud5d8\uc744 \ubc29\uc9c0\ud558\uc5ec \ub354\uc6b1 \uc548\uc804\ud55c \ud06c\ub808\uc778 \uc791\ub3d9, \ub354\uc6b1 \uacac\uace0\ud55c \uad6c\uc870\ubb3c \uad6c\ucd95, \uadf8\ub9ac\uace0 \uc804\ubc18\uc801\uc778 \ube44\uc6a9 \uad00\ub9ac\ub97c \uc2e4\ud604\ud560 \uc218 \uc788\ub3c4\ub85d \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"\ud06c\ub808\uc778\uc758 \uc8fc\uc694 \ud558\uc911 \uc9c0\uc9c0 \uad6c\uc870\ubb3c\uc778 \uc8fc \uac70\ub354\ub294 \ud06c\ub808\uc778 \ubb34\uac8c\uc758 \uc0c1\ub2f9 \ubd80\ubd84\uc744 \ucc28\uc9c0\ud569\ub2c8\ub2e4. \uc624\ubc84\ud5e4\ub4dc \ud06c\ub808\uc778\uc758 \uc8fc \uac70\ub354\ub294 \uc804\uccb4 \ud06c\ub808\uc778 \ubb34\uac8c\uc758 40%~60%\ub97c \ucc28\uc9c0\ud558\uba70, \uac20\ud2b8\ub9ac \ud06c\ub808\uc778\uc758 \uc8fc \uac70\ub354\ub294 30%\ub97c \ucd08\uacfc\ud569\ub2c8\ub2e4. \uc8fc \uac70\ub354\uc758 \uac15\uc7ac\ub294 \uc804\uccb4 \ud558\uc911 \uc9c0\uc9c0 \ub2a5\ub825, \uc791\ub3d9 \uc548\uc804\uc131 \ub4f1\uc744 \uc9c1\uc811\uc801\uc73c\ub85c 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