{"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\/zh\/posts\/overhead-and-gantry-cranes-main-girder\/","title":{"rendered":"\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u4e3b\u6881\uff1a\u7ec8\u6781\u94a2\u6750\u6307\u5357"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>\u76ee\u5f55<\/p><nav><ul><li><a href=\"#low-carbon-steel-top-choice-for-light-small-overhead-and-gantry-cranes\">\u4f4e\u78b3\u94a2\uff1a\u8f7b\u578b\u5c0f\u578b\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u7684\u9996\u9009\u6750\u6599<\/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\">\u9ad8\u5f3a\u5ea6\u4f4e\u5408\u91d1\u94a2\uff1a\u662f\u4e2d\u578b\u548c\u91cd\u578b\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u7684\u7406\u60f3\u9009\u62e9<\/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\uff08EN S355J2\/ASTM A572 Gr.60\uff09<\/a><\/li><li><a href=\"#q-420-b-en-s-420-ml-astm-a-572-gr-70\">Q420B\uff08EN S420ML\/ASTM A572 Gr.70\uff09<\/a><\/li><\/ul><\/li><li><a href=\"#special-steel-choice-for-extreme-conditions\">\u7279\u79cd\u94a2\uff1a\u6781\u7aef\u6761\u4ef6\u4e0b\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u7684\u7406\u60f3\u4e4b\u9009<\/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\uff08EN S355J2W\/ASTM A588\uff09<\/a><\/li><li><a href=\"#q-450-nqr-1-en-s-355-k-2-w-astm-a-633-grade-c-d\">Q450NQR1\uff08EN S355K2W\/ASTM A633 C\/D \u7ea7\uff09<\/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>\u4e3b\u6881\u4f5c\u4e3a\u8d77\u91cd\u673a\u7684\u4e3b\u8981\u627f\u91cd\u7ed3\u6784\uff0c\u901a\u5e38\u5360\u5176\u91cd\u91cf\u7684\u5f88\u5927\u4e00\u90e8\u5206\u3002 <a href=\"https:\/\/www.dgcrane.com\/zh\/overhead-cranes\/\">\u6865\u5f0f\u8d77\u91cd\u673a<\/a> \u4e3b\u6881\u91cd\u91cf\u5360\u8d77\u91cd\u673a\u603b\u91cd\u91cf\u7684401\u5428\u81f3601\u5428\uff0c\u800c\u95e8\u5f0f\u8d77\u91cd\u673a\u7684\u4e3b\u6881\u91cd\u91cf\u8d85\u8fc7301\u5428\u3002\u4e3b\u6881\u94a2\u6750\u7684\u9009\u62e9\u76f4\u63a5\u51b3\u5b9a\u4e86\u8d77\u91cd\u673a\u7684\u6574\u4f53\u627f\u8f7d\u80fd\u529b\u3001\u8fd0\u884c\u5b89\u5168\u6027\u548c\u7efc\u5408\u6210\u672c\u3002\u4e2d\u56fd\u91cd\u578b\u673a\u68b0\u5de5\u4e1a\u534f\u4f1a\u7684\u6570\u636e\u663e\u793a\uff0c\u8d85\u8fc7651\u5428\u7684\u7ed3\u6784\u6027\u6545\u969c\u662f\u7531\u4e8e\u4e3b\u6881\u94a2\u6750\u4e0e\u8fd0\u884c\u5de5\u51b5\u4e0d\u5339\u914d\u9020\u6210\u7684\u3002\u4e3a\u4e86\u5e2e\u52a9\u60a8\u964d\u4f4e\u8bbe\u5907\u98ce\u9669\u5e76\u4f18\u5316\u6574\u4e2a\u9009\u578b\u8fc7\u7a0b\uff0c\u6211\u4eec\u7f16\u5236\u4e86\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u4e3b\u6d41\u94a2\u6750\u7684\u53c2\u6570\u5bf9\u6bd4\u8868\u3002\u4e0b\u6587\u5c06\u5206\u6790\u9002\u7528\u4e8e\u4e3b\u6881\u7684\u5404\u79cd\u94a2\u6750\u7684\u6838\u5fc3\u7279\u6027\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u94a2\u6750<\/th><th>\u5e94\u7528<\/th><th>\u4e2d\u56fd\uff08GB\/GB\/T\uff09<\/th><th>\u6b27\u6d32\uff08EN10025\uff09<\/th><th>\u7f8e\u56fd\uff08ASTM\/AISC\uff09<\/th><th>\u5c48\u670d\u5f3a\u5ea6\uff08\u5146\u5e15\uff09<\/th><\/tr><\/thead><tbody><tr><td>\u4f4e\u78b3\u94a2<\/td><td>\u226410\u5428\uff0c\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a<\/td><td>Q235B\/Q235C\/Q235D<\/td><td>S235JR\/S235J2<\/td><td>A283\/A1011<\/td><td>\u2265235<\/td><\/tr><tr><td rowspan=\"3\">\u9ad8\u5f3a\u5ea6\u4f4e\u5408\u91d1\u94a2<\/td><td>10\u5428\u81f350\u5428\uff0c\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u9f99\u95e8\u8d77\u91cd\u673a<\/td><td>Q355B<\/td><td>S355JR<\/td><td>A572 Gr.50<\/td><td>\u2265355<\/td><\/tr><tr><td rowspan=\"2\">50\u5428\u81f3300\u5428\u6865\u5f0f\u548c\u95e8\u5f0f\u8d77\u91cd\u673a<\/td><td>Q390B<\/td><td>S355J2<\/td><td>A572 Gr.60<\/td><td>\u2265390<\/td><\/tr><tr><td>Q420B<\/td><td>S420\u6beb\u5347<\/td><td>A572 Gr.70<\/td><td>\u2265420<\/td><\/tr><tr><td rowspan=\"4\">\u7279\u79cd\u5e94\u7528\u94a2<\/td><td rowspan=\"3\">\u4f4e\u6e29\u3001\u9ad8\u5f71\u54cd\u5730\u533a\u3001\u5bd2\u51b7\u6c14\u5019\u3001\u6e2f\u53e3<\/td><td>Q460NE<\/td><td>S460NL<\/td><td>A537 \u5206\u7c7b2<\/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>\u8010\u5019\u6027\u3001\u6237\u5916\u4f7f\u7528\u3001\u51cf\u5c11\u7ef4\u62a4<\/td><td>Q450NQR1<\/td><td>S355K2W<\/td><td>A709 Gr.50W<\/td><td>\u2265450<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">\u4e3b\u6d41\u94a2\u6750\u53c2\u6570\u5bf9\u6bd4\u8868<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"low-carbon-steel-top-choice-for-light-small-overhead-and-gantry-cranes\">\u4f4e\u78b3\u94a2\uff1a\u8f7b\u578b\u5c0f\u578b\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u7684\u9996\u9009\u6750\u6599<\/h2>\n\n\n\n<p>\u4f4e\u78b3\u94a2\uff08\u4f8b\u5982 Q235B \/ S235JR \/ A283\uff09\u5177\u6709\u4f18\u5f02\u7684\u5851\u6027\u3001\u53ef\u710a\u6027\u548c\u6210\u672c\u4f18\u52bf\uff0c\u662f\u8f7b\u8f7d\u3001\u4f4e\u5de5\u4f5c\u7b49\u7ea7\u5e94\u7528\u4e2d\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u4e3b\u6881\u7684\u4e3b\u6d41\u7ecf\u6d4e\u578b\u6750\u6599\uff0c\u5360\u636e\u4e86\u8f7b\u578b\u5c0f\u578b\u8d77\u91cd\u673a\uff08\u226420\u5428\uff09\u6750\u6599\u5e02\u573a\u7ea6 22% \u7684\u4efd\u989d\u3002<\/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\u662f\u8d77\u91cd\u8bbe\u5907\u4e2d\u6700\u5e38\u7528\u7684\u4f4e\u78b3\u94a2\uff0c\u5c24\u5176\u5e38\u89c1\u4e8e\u8f7b\u578b\u3001\u4f4e\u8d1f\u8377\u7b49\u7ea7\u7684\u8d77\u91cd\u673a\uff0c\u4f8b\u59825\u5428\u7ea7\u8d77\u91cd\u673a\u3002 <a href=\"https:\/\/www.dgcrane.com\/zh\/double-girder-overhead-crane\/\">\u53cc\u6881\u6865\u5f0f\u8d77\u91cd\u673a<\/a> \u7528\u4e8e\u4ed3\u5e93\u548c3\u5428\u5355\u6881\u67b6\u7a7a\u7ebf\u548c <a href=\"https:\/\/www.dgcrane.com\/zh\/gantry-cranes\/\">\u9f99\u95e8\u540a<\/a> \u5728\u8f66\u95f4\u4e2d\u3002\u5176\u4e3b\u8981\u5316\u5b66\u6210\u5206\u548c\u673a\u68b0\u6027\u80fd\u5982\u4e0b\u8868\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u6210\u5206<\/th><th>\u8d28\u91cf\u8bc4\u5206<\/th><th>\u673a\u68b0\u6027\u80fd<\/th><th>\u53c2\u6570<\/th><\/tr><\/thead><tbody><tr><td>\u78b3\uff08C\uff09<\/td><td>\u22640.2%<\/td><td>\u5c48\u670d\u5e94\u529b<\/td><td>\u2265235MPa<\/td><\/tr><tr><td>\u7845\uff08Si\uff09<\/td><td>\u22640.35%<\/td><td>\u6297\u62c9\u5f3a\u5ea6<\/td><td>370-500\u5146\u5e15<\/td><\/tr><tr><td>\u9530\uff08Mn\uff09<\/td><td>0.3%-0.7%<\/td><td>\u51b2\u51fb\u97e7\u6027<\/td><td>\u226527 J\uff0820\u2103\u51b2\u51fb\u8bd5\u9a8c\uff09<\/td><\/tr><tr><td>\u786b\uff08S\uff09<\/td><td>\u22640.045%<\/td><td>\u4f38\u957f\u7387<\/td><td>\u226521%\uff08\u539a\u5ea6\u226416mm\uff09<\/td><\/tr><tr><td>\u78f7\uff08P\uff09<\/td><td>\u22640.045%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u57fa\u4e8e\u4ee5\u4e0a\u6027\u80fd\u6307\u6807\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u6e05\u6670\u5730\u5206\u6790Q235B\u7684\u6838\u5fc3\u4f18\u52bf\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9ad8\u4f4e\u78b3\u542b\u91cf\uff0c\u4f18\u5f02\u7684\u710a\u63a5\u6027\u80fd\uff1a<\/strong> \u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u7684\u4e3b\u6881\u710a\u63a5\u7ed3\u6784\u5bc6\u96c6\u4e14\u590d\u6742\u3002Q235B\u94a2\u6750\u7684\u4f4e\u78b3\u542b\u91cf\u4f7f\u5176\u80fd\u591f\u91c7\u7528\u5e38\u89c4\u710a\u63a5\u5de5\u827a\u83b7\u5f97\u9ad8\u8d28\u91cf\u7684\u710a\u7f1d\uff0c\u4ece\u800c\u964d\u4f4e\u710a\u63a5\u7f3a\u9677\u7684\u53d1\u751f\u7387\uff0c\u5e76\u786e\u4fdd\u751f\u4ea7\u7a33\u5b9a\u6027\u3002<\/li>\n\n\n\n<li><strong>\u97e7\u6027\u9002\u4e2d\uff0c\u53ef\u627f\u53d7\u4e00\u822c\u51b2\u51fb\uff1a<\/strong> \u8be5\u6750\u6599\u572820\u2103\u5ba4\u6e29\u4e0b\u7684\u51b2\u51fb\u80fd\u91cf\u4e0d\u4f4e\u4e8e27J\uff0c\u5177\u6709\u826f\u597d\u7684\u97e7\u6027\u3002\u5b83\u80fd\u5438\u6536\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u4f5c\u4e1a\u4e2d\u7684\u51b2\u51fb\u548c\u632f\u52a8\uff0c\u62b5\u6297\u56e0\u8f7d\u8377\u7a81\u53d8\u800c\u5bfc\u81f4\u7684\u8106\u6027\u65ad\u88c2\uff0c\u4ece\u800c\u63d0\u4f9b\u66f4\u5b89\u5168\u3001\u66f4\u53ef\u9760\u7684\u7ed3\u6784\u6027\u80fd\u3002<\/li>\n\n\n\n<li><strong>\u6210\u672c\u4f4e\uff0c\u6027\u4ef7\u6bd4\u9ad8\uff1a<\/strong> Q235B\u7684\u751f\u4ea7\u6210\u672c\u76f8\u5bf9\u8f83\u4f4e\u3002\u6b64\u5916\uff0c\u5176\u7efc\u5408\u6027\u80fd\u6ee1\u8db3\u5927\u591a\u6570\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u94a2\u7ed3\u6784\u7684\u5e94\u7528\u8981\u6c42\uff0c\u5728\u786e\u4fdd\u5b89\u5168\u53ef\u9760\u6027\u7684\u540c\u65f6\uff0c\u6709\u6548\u964d\u4f4e\u4e86\u5236\u9020\u6210\u672c\uff0c\u4ece\u800c\u5b9e\u73b0\u4e86\u8f83\u9ad8\u7684\u6027\u4ef7\u6bd4\u3002<\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u7136\u800c\uff0c\u7531\u4e8e\u6750\u6599\u672c\u8eab\u7684\u5f3a\u5ea6\u7b49\u7ea7\u548c\u6027\u80fd\u7279\u6027\u5b58\u5728\u5c40\u9650\u6027\uff0cQ235B \u4e5f\u5b58\u5728\u4e00\u5b9a\u7684\u5c40\u9650\u6027\uff1b\u56e0\u6b64\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5c48\u670d\u5f3a\u5ea6\u4f4e\uff1a <\/strong>Q235B \u7684\u5c48\u670d\u5f3a\u5ea6\u4ec5\u4e3a 235MPa\u3002\u5728\u91cd\u8f7d\u6761\u4ef6\u4e0b\uff0c\u4e3a\u6ee1\u8db3\u5f3a\u5ea6\u8981\u6c42\uff0c\u9700\u8981\u4f7f\u7528\u66f4\u539a\u7684\u94a2\u677f\uff0c\u8fd9\u4f1a\u663e\u8457\u589e\u52a0\u7ed3\u6784\u91cd\u91cf\uff0c\u56e0\u6b64\u4e0d\u9002\u5408\u91cd\u8f7d\u548c\u9ad8\u9891\u4f7f\u7528\u3002<\/li>\n\n\n\n<li><strong>\u8010\u8150\u8680\u6027\u5dee\uff1a<\/strong> \u7531\u4e8e\u8d77\u91cd\u673a\u94a2\u7ed3\u6784\u957f\u65f6\u95f4\u66b4\u9732\u5728\u5404\u79cd\u5929\u6c14\u6761\u4ef6\u4e0b\uff0cQ235B \u5bb9\u6613\u53d1\u751f\u8150\u8680\uff0c\u9700\u8981\u8fdb\u884c\u9632\u8150\u6d82\u5c42\u5904\u7406\uff0c\u56e0\u6b64\u4e0d\u9002\u5408\u5728\u9ad8\u5ea6\u8150\u8680\u6027\u73af\u5883\u4e2d\u4f7f\u7528\u3002<\/li>\n\n\n\n<li><strong>\u4e0d\u9002\u7528\u4e8e\u4f4e\u6e29\u73af\u5883\uff1a <\/strong>Q235B \u4ec5\u4fdd\u8bc1\u5ba4\u6e29\u4e0b\u7684\u51b2\u51fb\u97e7\u6027\uff0c\u5728\u4f4e\u6e29\u4e0b\u6613\u53d1\u751f\u8106\u6027\u65ad\u88c2\u3002\u56e0\u6b64\uff0c\u76f4\u63a5\u5728\u4f4e\u6e29\u73af\u5883\u4e0b\u4f7f\u7528\u5b58\u5728\u8106\u6027\u65ad\u88c2\u7684\u5b89\u5168\u9690\u60a3\uff0c\u5fc5\u987b\u4f7f\u7528\u4f4e\u6e29\u94a2\u6216 Q355D\/E \u7ea7\u94a2\u3002<\/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 \u548c Q235D \u662f Q235B \u7684\u4f4e\u6e29\u5347\u7ea7\u7248\u3002\u5b83\u4eec\u5177\u6709\u66f4\u7a33\u5b9a\u7684\u4f4e\u6e29\u97e7\u6027\u3001\u66f4\u5c11\u7684\u6742\u8d28\uff0c\u5e76\u4e14\u5728\u51ac\u5b63\u4e0d\u6613\u8106\u5316\uff0c\u56e0\u6b64\u9002\u7528\u4e8e\u5bf9\u5b89\u5168\u6027\u3001\u6297\u51b2\u51fb\u6027\u548c\u4f4e\u6e29\u7a33\u5b9a\u6027\u8981\u6c42\u66f4\u9ad8\u7684\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u3002&nbsp;<\/p>\n\n\n\n<p>Q235C\u57280\u2103\u65f6\u9700\u8981\u226527 J\u7684\u51b2\u51fb\u80fd\u91cf\uff0c\u4f46\u5176\u97e7\u6027\u5728-10\u2103\u4ee5\u4e0b\u4f1a\u663e\u8457\u4e0b\u964d\u3002Q235D\u5728-20\u2103\u65f6\u9700\u8981\u226527 J\u7684\u51b2\u51fb\u80fd\u91cf\uff0c\u80fd\u6709\u6548\u9632\u6b62\u51ac\u5b63\u957f\u671f\u6237\u5916\u4f5c\u4e1a\u4e2d\u7684\u4f4e\u6e29\u8106\u6027\u65ad\u88c2\uff0c\u63d0\u4f9b\u6700\u9ad8\u7684\u5b89\u5168\u6027\u80fd\uff0c\u4f46\u751f\u4ea7\u6210\u672c\u548c\u4ef7\u683c\u4e5f\u66f4\u9ad8\u3002<\/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\">\u9ad8\u5f3a\u5ea6\u4f4e\u5408\u91d1\u94a2\uff1a\u662f\u4e2d\u578b\u548c\u91cd\u578b\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u7684\u7406\u60f3\u9009\u62e9<\/h2>\n\n\n\n<p>\u9ad8\u5f3a\u5ea6\u4f4e\u5408\u91d1\u94a2\uff08\u4e5f\u79f0HSLA\uff09\u662f\u5728\u78b3\u7d20\u7ed3\u6784\u94a2\u4e2d\u6dfb\u52a0\u5c11\u91cf\u5408\u91d1\u5143\u7d20\uff08\u5982\u9492\u3001\u94cc\u3001\u949b\uff09\u5236\u6210\u7684\u3002\u5b83\u517c\u5177\u5f3a\u5ea6\u548c\u53ef\u52a0\u5de5\u6027\uff0c\u76ee\u524d\u662f\u8d77\u91cd\u673a\u4e3b\u6881\u7684\u201c\u4e3b\u6d41\u6750\u6599\u201d\u3002\u5728\u56fd\u5185\u8d77\u91cd\u673a\u4e3b\u6881\u548c\u7aef\u6881\u6750\u6599\u5e02\u573a\u4e2d\uff0cHSLA\u7684\u4efd\u989d\u8d85\u8fc7581\u5428\/\u5428\uff0c\u662f\u8d85\u8fc7801\u5428\/\u5428\u901a\u7528\u8d77\u91cd\u673a\u7684\u9996\u9009\u6750\u6599\u3002\u5b83\u9002\u7528\u4e8e\u5927\u591a\u6570\u4e2d\u91cd\u578b\u5e94\u7528\u573a\u666f\uff0c\u65e2\u80fd\u6ee1\u8db3\u4f7f\u7528\u9700\u6c42\uff0c\u53c8\u80fd\u63a7\u5236\u6210\u672c\uff0c\u662f\u91c7\u8d2d\u8005\u7684\u201c\u5b89\u5168\u4e4b\u9009\u201d\u3002<\/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>Q355B\u662f\u4e00\u79cd\u5e94\u7528\u5e7f\u6cdb\u7684\u4f4e\u5408\u91d1\u9ad8\u5f3a\u5ea6\u94a2\uff0c\u662f\u4e1a\u754c\u7684\u201c\u4e3b\u529b\u6750\u6599\u201d\uff0c\u9002\u7528\u4e8eA3-A5\u5de5\u4f5c\u7b49\u7ea7\u7684\u4e2d\u8f7b\u5428\u4f4d\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u3002\u5176\u6838\u5fc3\u7ec4\u6210\u90e8\u5206\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u6210\u5206 <\/th><th>\u8d28\u91cf\u8bc4\u5206<\/th><th>\u673a\u68b0\u6027\u80fd<\/th><th>\u53c2\u6570<\/th><\/tr><\/thead><tbody><tr><td>\u78b3\uff08C\uff09<\/td><td>\u22640.24%<\/td><td>\u5c48\u670d\u5e94\u529b<\/td><td>\u2265355MPa<\/td><\/tr><tr><td>\u7845\uff08Si\uff09<\/td><td>\u22640.55%<\/td><td>\u6297\u62c9\u5f3a\u5ea6<\/td><td>470-630\u5146\u5e15<\/td><\/tr><tr><td>\u9530\uff08Mn\uff09<\/td><td>\u22641.6%<\/td><td>\u51b2\u51fb\u97e7\u6027<\/td><td>\u226534 J\uff0820\u2103\u51b2\u51fb\u8bd5\u9a8c\uff09<\/td><\/tr><tr><td>\u786b\uff08S\uff09<\/td><td>\u22640.03%<\/td><td>\u4f38\u957f\u7387<\/td><td>\u226521%\uff08\u539a\u5ea6\u226416mm\uff09<\/td><\/tr><tr><td>\u78f7\uff08P\uff09<\/td><td>\u22640.035%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u8fd9\u4e9b\u6838\u5fc3\u53c2\u6570\u6b63\u662fQ355B\u6210\u4e3a\u8d77\u91cd\u673a\u4e3b\u8981\u6750\u6599\u7684\u5173\u952e\u56e0\u7d20\uff0c\u5177\u4f53\u4f53\u73b0\u5728\u4ee5\u4e0b\u4f18\u52bf\u4e0a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9ad8\u5c48\u670d\u5f3a\u5ea6\u6bd4\uff0c\u8f7b\u91cf\u5316\u8bbe\u8ba1\uff1a <\/strong>\u5f53\u94a2\u677f\u539a\u5ea6\u5927\u4e8e16mm\u65f6\uff0cQ355B\u7684\u5c48\u670d\u5f3a\u5ea6\u6bd4Q235B\u9ad8\u7ea651%\uff0c\u5728\u76f8\u540c\u627f\u8f7d\u80fd\u529b\u4e0b\uff0c\u91cd\u91cf\u53ef\u51cf\u8f7b15%\u81f325%\u3002\u8fd9\u65e2\u964d\u4f4e\u4e86\u8d77\u91cd\u673a\u7684\u81ea\u91cd\uff0c\u4e5f\u51cf\u8f7b\u4e86\u5de5\u5382\u7684\u627f\u91cd\u538b\u529b\u3002<\/li>\n\n\n\n<li><strong>\u4f4e\u78b3\u5f53\u91cf\uff0c\u66f4\u597d\u7684\u710a\u63a5\u6027\u80fd\uff1a<\/strong> \u710a\u63a5\u8fc7\u7a0b\u4e2d\u53d1\u751f\u51b7\u88c2\u7684\u98ce\u9669\u8f83\u4f4e\u3002\u5f53Q355B\u677f\u6750\u539a\u5ea6\u226416mm\u65f6\uff0c\u901a\u5e38\u65e0\u9700\u9884\u70ed\uff0c\u53ef\u76f4\u63a5\u710a\u63a5\u3002\u8fd9\u7f29\u77ed\u4e86\u751f\u4ea7\u5468\u671f\uff0c\u63d0\u9ad8\u4e86\u751f\u4ea7\u6548\u7387\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u5f02\u7684\u4f4e\u6e29\u97e7\u6027\uff1a<\/strong> Q355B\u5177\u6709\u66f4\u5f3a\u7684\u4f4e\u6e29\u9002\u5e94\u6027\uff0c\u901a\u8fc7\u4e86-20\u2103\u7684\u51b2\u51fb\u8bd5\u9a8c\u3002\u5b83\u9002\u7528\u4e8e\u5bd2\u51b7\u5730\u533a\u6216\u9700\u8981\u9ad8\u97e7\u6027\u7684\u7ed3\u6784\uff0c\u80fd\u6709\u6548\u9632\u6b62\u4f4e\u6e29\u73af\u5883\u4e0b\u7684\u8106\u6027\u65ad\u88c2\u3002<\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u5c3d\u7ba1Q355B\u6574\u4f53\u6027\u80fd\u4f18\u5f02\uff0c\u4f46\u5b83\u4e5f\u5b58\u5728\u4e00\u4e9b\u660e\u663e\u7684\u5c40\u9650\u6027\uff0c\u5c24\u5176\u662f\u5728\u4f4e\u6e29\u548c\u8150\u8680\u6027\u73af\u5883\u4e0b\uff0c\u4ee5\u53ca\u539a\u677f\u710a\u63a5\u3001\u6210\u672c\u548c\u52a0\u5de5\u96be\u5ea6\u65b9\u9762\u3002\u5177\u4f53\u7f3a\u70b9\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f4e\u6e29\u6027\u80fd\u6709\u9650\uff1a<\/strong> Q355B \u4ec5\u5728 20\u2103 \u65f6\u4fdd\u8bc1\u5408\u683c\u7684\u51b2\u51fb\u97e7\u6027\u3002\u5176\u97e7\u6027\u5728 0\u2103 \u4ee5\u4e0b\u6025\u5267\u4e0b\u964d\uff0c\u5728\u51b7\u5e93\u6216\u4e25\u5bd2\u6237\u5916\u73af\u5883\u4e2d\u5e94\u7528\u65f6\u6781\u6613\u53d1\u751f\u51b7\u8106\u6027\u3002\u56e0\u6b64\uff0c\u5b83\u4e0d\u9002\u7528\u4e8e\u6781\u5bd2\u73af\u5883\u3002<\/li>\n\n\n\n<li><strong>\u539a\u677f\u710a\u63a5\u96be\u5ea6\u9ad8\uff1a<\/strong> \u5f53Q355B\u94a2\u539a\u5ea6\u8d85\u8fc725mm\u65f6\uff0c\u5176\u78b3\u5f53\u91cf\u663e\u8457\u5347\u9ad8\uff0c\u710a\u63a5\u88c2\u7eb9\u7684\u98ce\u9669\u4e5f\u968f\u4e4b\u589e\u52a0\u3002\u710a\u63a5\u8fc7\u7a0b\u4e2d\u9700\u8981\u8fdb\u884c\u9884\u70ed\u548c\u4e25\u683c\u7684\u6e29\u5ea6\u63a7\u5236\uff0c\u5bfc\u81f4\u52a0\u5de5\u5de5\u827a\u66f4\u52a0\u590d\u6742\u3002<\/li>\n\n\n\n<li><strong>\u6210\u672c\u9ad8\u4e8e Q235B\uff1a<\/strong> Q355B \u901a\u5e38\u6bd4 Q235B \u8d35 10% \u81f3 15%\u3002\u5bf9\u4e8e\u8f7b\u578b\u5e94\u7528\u6216\u975e\u627f\u91cd\u90e8\u4ef6\uff0c\u91c7\u7528 Q355B \u4f1a\u5bfc\u81f4\u6027\u80fd\u8fc7\u5269\u800c\u6ca1\u6709\u6210\u672c\u4f18\u52bf\u3002<\/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\uff08EN 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>Q390B\u94a2\u6750\u7684\u5c48\u670d\u5f3a\u5ea6\u8d85\u8fc7390 MPa\uff0c\u5177\u6709\u5353\u8d8a\u7684\u627f\u8f7d\u80fd\u529b\u548c\u7ed3\u6784\u5b89\u5168\u6027\u3002\u5728\u76f8\u540c\u8f7d\u8377\u6761\u4ef6\u4e0b\uff0c\u4e0eQ355B\u94a2\u6750\u76f8\u6bd4\uff0cQ390B\u94a2\u6750\u6bcf\u5428\u53ef\u51cf\u5c11\u7ea6151\u5428\u94a2\u6750\u7528\u91cf\uff0c\u56e0\u6b64\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5bf9\u5f3a\u5ea6\u8981\u6c42\u8f83\u9ad8\u7684\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u6210\u5206 <\/th><th>\u8d28\u91cf\u8bc4\u5206<\/th><th>\u673a\u68b0\u6027\u80fd<\/th><th>\u53c2\u6570<\/th><\/tr><\/thead><tbody><tr><td>\u78b3\uff08C\uff09<\/td><td>\u22640.2%<\/td><td>\u5c48\u670d\u5e94\u529b<\/td><td>\u2265390MPa<\/td><\/tr><tr><td>\u7845\uff08Si\uff09<\/td><td>\u22640.5%<\/td><td>\u6297\u62c9\u5f3a\u5ea6<\/td><td>490-650\u5146\u5e15<\/td><\/tr><tr><td>\u9530\uff08Mn\uff09<\/td><td>\u22641.7%<\/td><td>\u51b2\u51fb\u97e7\u6027<\/td><td>\u226534 J\uff0820\u2103\u51b2\u51fb\u8bd5\u9a8c\uff09<\/td><\/tr><tr><td>\u786b\uff08S\uff09<\/td><td>\u22640.035%<\/td><td>\u4f38\u957f\u7387<\/td><td>\u226520%\uff08\u539a\u5ea6\u226416mm\uff09<\/td><\/tr><tr><td>\u78f7\uff08P\uff09<\/td><td>\u22640.035%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u7531\u4e8e\u78b3\u542b\u91cf\u4f4e\uff0cQ390B\u94a2\u4e0d\u9002\u5408\u6dec\u706b\u548c\u56de\u706b\u3002\u7136\u800c\uff0c\u5b83\u5177\u6709\u4f18\u5f02\u7684\u8010\u78e8\u6027\u548c\u4e2d\u7b49\u7684\u8010\u8150\u8680\u6027\uff0c\u80fd\u591f\u627f\u53d7\u5927\u6c14\u73af\u5883\u548c\u67d0\u4e9b\u5316\u5b66\u4ecb\u8d28\u7684\u4fb5\u8680\u3002<\/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\u662f\u4e00\u79cd\u8d85\u9ad8\u5f3a\u5ea6\u94a2\u3002\u6839\u636e\u2026\u2026 <em>\u4e2d\u56fd\u94a2\u94c1\u7ed3\u6784\u4ea7\u4e1a\u53d1\u5c55\u73b0\u72b6\u53ca\u94a2\u94c1\u9700\u6c42\u5206\u6790<\/em>Q420B \u9ad8\u5f3a\u5ea6\u94a2\u7684\u4ea7\u91cf\u8d85\u8fc7 50%\uff0c\u4e3b\u8981\u7528\u4e8e\u5efa\u7b51\u3001\u6865\u6881\u6216\u91cd\u578b\u8bbe\u5907\u7684\u94a2\u7ed3\u6784\uff0c\u4f8b\u5982 50-300 \u5428\u9f99\u95e8\u8d77\u91cd\u673a\u6216\u6e2f\u53e3\u673a\u68b0\u7684\u4e3b\u6881\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u6210\u5206 <\/th><th>\u8d28\u91cf\u8bc4\u5206<\/th><th>\u673a\u68b0\u6027\u80fd<\/th><th>\u53c2\u6570<\/th><\/tr><\/thead><tbody><tr><td>\u78b3\uff08C\uff09<\/td><td>\u22640.2%<\/td><td>\u5c48\u670d\u5e94\u529b<\/td><td>\u2265420MPa<\/td><\/tr><tr><td>\u7845\uff08Si\uff09<\/td><td>\u22640.55%<\/td><td>\u6297\u62c9\u5f3a\u5ea6<\/td><td>520-680\u5146\u5e15<\/td><\/tr><tr><td>\u9530\uff08Mn\uff09<\/td><td>\u22641.7%<\/td><td>\u51b2\u51fb\u97e7\u6027<\/td><td>\u226534 J\uff0820\u2103\u51b2\u51fb\u8bd5\u9a8c\uff09<\/td><\/tr><tr><td>\u786b\uff08S\uff09<\/td><td>\u22640.035%<\/td><td>\u4f38\u957f\u7387<\/td><td>\u226518%\uff08\u539a\u5ea6\u226416mm\uff09<\/td><\/tr><tr><td>\u78f7\uff08P\uff09<\/td><td>\u22640.035%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u7136\u800c\uff0cQ420B\u94a2\u677f\u7684\u539a\u5ea6\u589e\u52a0\u65f6\uff0c\u5176\u5c48\u670d\u5f3a\u5ea6\u5448\u9636\u68af\u5f0f\u4e0b\u964d\u3002\u4f8b\u5982\uff0c\u5f53\u539a\u5ea6\u226416mm\u65f6\uff0c\u5c48\u670d\u5f3a\u5ea6\u2265420MPa\uff1b\u800c\u5f53\u539a\u5ea6&gt;50mm\u65f6\uff0c\u5c48\u670d\u5f3a\u5ea6\u4ec5\u2265360MPa\u3002\u56e0\u6b64\uff0c\u5728\u8d85\u539a\u94a2\u677f\u5e94\u7528\u4e2d\uff0c\u9700\u8981\u4f18\u5316\u5de5\u827a\u6216\u9009\u7528\u66f4\u9ad8\u7b49\u7ea7\u7684\u94a2\u6750\u4ee5\u6ee1\u8db3\u5f3a\u5ea6\u8981\u6c42\uff0c\u6210\u672c\u4e5f\u4f1a\u76f8\u5e94\u589e\u52a0\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"special-steel-choice-for-extreme-conditions\">\u7279\u79cd\u94a2\uff1a\u6781\u7aef\u6761\u4ef6\u4e0b\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u7684\u7406\u60f3\u4e4b\u9009<\/h2>\n\n\n\n<p>\u7279\u79cd\u94a2\u662f\u4e13\u4e3a\u6781\u7aef\u5de5\u51b5\u4e0b\u6865\u5f0f\u8d77\u91cd\u673a\u548c\u95e8\u5f0f\u8d77\u91cd\u673a\u4e3b\u6881\u5b9a\u5236\u7684\u6750\u6599\u3002\u5b83\u4e0d\u540c\u4e8e\u4f4e\u78b3\u94a2\u548c\u9ad8\u5f3a\u5ea6\u4f4e\u5408\u91d1\u94a2\u3002\u901a\u8fc7\u7cbe\u786e\u7684\u5408\u91d1\u914d\u6bd4\u548c\u5de5\u827a\u4f18\u5316\uff0c\u7279\u79cd\u94a2\u514b\u670d\u4e86\u4f20\u7edf\u94a2\u6750\u5728\u6781\u5bd2\u3001\u9ad8\u76d0\u96fe\u3001\u5f3a\u8150\u8680\u3001\u8d85\u5927\u5428\u4f4d\u91cd\u8f7d\u3001\u9ad8\u9891\u8fde\u7eed\u8fd0\u884c\u7b49\u573a\u666f\u4e0b\u7684\u6027\u80fd\u4e0d\u8db3\uff0c\u6210\u4e3a\u6076\u52a3\u73af\u5883\u4e0b\u8bbe\u5907\u5b89\u5168\u548c\u957f\u671f\u8fd0\u884c\u7684\u6838\u5fc3\u652f\u6491\u3002<\/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 \u662f\u4e00\u79cd\u8010\u8150\u8680\u4f4e\u5408\u91d1\u94a2\uff0c\u4e13\u4e3a\u4e25\u82db\u7684\u5de5\u4f5c\u73af\u5883\u800c\u8bbe\u8ba1\u3002\u724c\u53f7\u4e2d\u7684\u201cN\u201d\u8868\u793a\u5176\u8010\u5019\u6027\uff0c\u201cE\u201d\u5219\u5bf9\u5e94\u4e8e-40\u2103\u7684\u4f4e\u6e29\u51b2\u51fb\u7b49\u7ea7\u3002\u4e0e\u666e\u901a\u94a2\u6750\u76f8\u6bd4\uff0c\u5b83\u6ee1\u8db3\u91cd\u578b\u7ed3\u6784\u7684\u5f3a\u5ea6\u8981\u6c42\uff0c\u5e76\u53ef\u5728\u6781\u5bd2\u3001\u9ad8\u6e7f\u548c\u76d0\u96fe\u73af\u5883\u4e0b\u957f\u671f\u7a33\u5b9a\u8fd0\u884c\u3002\u5176\u4e3b\u8981\u6027\u80fd\u53c2\u6570\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u6210\u5206 <\/th><th>\u8d28\u91cf\u8bc4\u5206<\/th><th>\u673a\u68b0\u6027\u80fd<\/th><th>\u53c2\u6570<\/th><\/tr><\/thead><tbody><tr><td>\u78b3\uff08C\uff09<\/td><td>\u22640.18%<\/td><td>\u5c48\u670d\u5e94\u529b<\/td><td>\u2265460MPa<\/td><\/tr><tr><td>\u7845\uff08Si\uff09<\/td><td>\u22640.55%<\/td><td>\u6297\u62c9\u5f3a\u5ea6<\/td><td>540-720\u5146\u5e15<\/td><\/tr><tr><td>\u9530\uff08Mn\uff09<\/td><td>1.0%-1.6%<\/td><td>\u51b2\u51fb\u97e7\u6027<\/td><td>\u226520 J\uff08-40\u2103\u51b2\u51fb\u8bd5\u9a8c\uff09<\/td><\/tr><tr><td>\u786b\uff08S\uff09<\/td><td>\u22640.02%<\/td><td>\u4f38\u957f\u7387<\/td><td>\u226517%\uff08\u539a\u5ea6\u226416mm\uff09<\/td><\/tr><tr><td>\u78f7\uff08P\uff09<\/td><td>\u22640.025%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4e3a\u4e86\u540c\u65f6\u63d0\u5347\u8010\u5019\u6027\u548c\u4f4e\u6e29\u6027\u80fd\uff0c\u5728Q460NE\u914d\u65b9\u4e2d\u6dfb\u52a0\u4e86\u7279\u5b9a\u7684\u5408\u91d1\u5143\u7d20\u3002\u5404\u5143\u7d20\u7684\u542b\u91cf\u548c\u529f\u80fd\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5408\u91d1\u5143\u7d20<\/th><th>\u5185\u5bb9\u4e0a\u9650<\/th><th>\u4e3b\u8981\u529f\u80fd<\/th><\/tr><\/thead><tbody><tr><td>\u94ec\uff08Cr\uff09<\/td><td>\u22640.30%<\/td><td>\u63d0\u9ad8\u8010\u8150\u8680\u6027\u5e76\u589e\u5f3a\u7ec4\u7ec7\u7a33\u5b9a\u6027<\/td><\/tr><tr><td>\u954d\uff08Ni\uff09<\/td><td>\u22640.80%<\/td><td>\u663e\u8457\u63d0\u9ad8\u4f4e\u6e29\u97e7\u6027\u5e76\u964d\u4f4e\u97e7\u8106\u8f6c\u53d8\u6e29\u5ea6<\/td><\/tr><tr><td>\u94dc\uff08Cu\uff09<\/td><td>\u22640.40%<\/td><td>\u63d0\u9ad8\u5927\u6c14\u8150\u8680\u62b5\u6297\u80fd\u529b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u7efc\u4e0a\u6240\u8ff0\uff0cQ460NE\u94a2\u6750\u901a\u8fc7\u4f4e\u78b3\u8bbe\u8ba1\u4ee5\u53ca\u94ec\u3001\u954d\u3001\u94dc\u7b49\u5408\u91d1\u5143\u7d20\u7684\u534f\u540c\u4f5c\u7528\uff0c\u80fd\u591f\u6ee1\u8db3\u9ad8\u6e7f\u9ad8\u76d0\u73af\u5883\u4e0b\u7684\u673a\u68b0\u6027\u80fd\u548c\u8010\u4e45\u6027\u8981\u6c42\u3002\u5373\u4f7f\u5728-40\u2103\u7684\u6781\u4f4e\u6e29\u4e0b\uff0cQ460NE\u4ecd\u80fd\u4fdd\u6301\u826f\u597d\u7684\u51b2\u51fb\u97e7\u6027\uff0c\u6709\u6548\u9632\u6b62\u4f4e\u6e29\u5bfc\u81f4\u7684\u6750\u6599\u8106\u5316\u3002\u8fd9\u4e3a\u6781\u5bd2\u5730\u533a\u7684\u5de5\u7a0b\u5efa\u8bbe\u63d0\u4f9b\u4e86\u575a\u5b9e\u7684\u5b89\u5168\u4fdd\u969c\uff0c\u63d0\u9ad8\u4e86\u8bbe\u5907\u7684\u53ef\u9760\u6027\u548c\u8fd0\u884c\u6548\u7387\u3002<\/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\uff08EN S355J2W\/ASTM A588\uff09<\/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\u662f\u4e00\u79cd\u8010\u5927\u6c14\u8150\u8680\u94a2\u677f\uff0c\u4e5f\u79f0\u4e3a\u8010\u5019\u94a2\u3002\u201cN\u201d\u548c\u201cH\u201d\u5b57\u6837\u901a\u5e38\u8868\u793a\u9700\u8981\u8fdb\u884c\u6b63\u706b\u5904\u7406\u548c\u63d0\u9ad8\u4f4e\u6e29\u97e7\u6027\u3002\u6b63\u706b\u5904\u7406\uff08\u5728\u76f8\u53d8\u6e29\u5ea6\u4ee5\u4e0a\u4fdd\u6e29\uff0c\u7136\u540e\u8fdb\u884c\u7a7a\u51b7\uff09\u53ef\u4ee5\u7ec6\u5316\u6676\u7c92\uff0c\u5f62\u6210\u66f4\u7ec6\u5c0f\u7684\u94c1\u7d20\u4f53-\u73e0\u5149\u4f53\u7ec4\u7ec7\uff0c\u5e76\u4f7f\u6750\u6599\u5728\u539a\u5ea6\u65b9\u5411\u4e0a\u7684\u6027\u80fd\u66f4\u52a0\u5747\u5300\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u6210\u5206 <\/th><th>\u8d28\u91cf\u8bc4\u5206<\/th><th>\u673a\u68b0\u6027\u80fd<\/th><th>\u53c2\u6570<\/th><\/tr><\/thead><tbody><tr><td>\u78b3\uff08C\uff09<\/td><td>\u22640.16%<\/td><td>\u5c48\u670d\u5e94\u529b<\/td><td>\u2265355MPa<\/td><\/tr><tr><td>\u7845\uff08Si\uff09<\/td><td>\u22640.5%<\/td><td>\u6297\u62c9\u5f3a\u5ea6<\/td><td>490-630\u5146\u5e15<\/td><\/tr><tr><td>\u9530\uff08Mn\uff09<\/td><td>0.5%-1.5%<\/td><td>\u51b2\u51fb\u97e7\u6027<\/td><td>\u226534 J\uff08-40\u2103\u51b2\u51fb\u8bd5\u9a8c\uff09<\/td><\/tr><tr><td>\u786b\uff08S\uff09<\/td><td>\u22640.03%<\/td><td>\u4f38\u957f\u7387<\/td><td>\u226517%\uff08\u539a\u5ea6\u226416mm\uff09<\/td><\/tr><tr><td>\u78f7\uff08P\uff09<\/td><td>\u22640.03%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4e0e\u4f4e\u78b3\u94a2\u76f8\u6bd4\uff0cQ355NH \u7684\u8010\u5019\u6027\u63d0\u9ad8\u4e86 2-8 \u500d\uff0c\u8fd9\u4e3b\u8981\u662f\u7531\u4e8e\u5728\u5176\u914d\u65b9\u4e2d\u6dfb\u52a0\u4e86\u7279\u5b9a\u7684\u5408\u91d1\u5143\u7d20\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5408\u91d1\u5143\u7d20<\/th><th>\u5185\u5bb9\u4e0a\u9650<\/th><th>\u4e3b\u8981\u529f\u80fd<\/th><\/tr><\/thead><tbody><tr><td>\u94ec\uff08Cr\uff09<\/td><td>0.4%-0.8%<\/td><td>\u63d0\u9ad8\u8010\u8150\u8680\u6027\u5e76\u589e\u5f3a\u7ec4\u7ec7\u7a33\u5b9a\u6027<\/td><\/tr><tr><td>\u954d\uff08Ni\uff09<\/td><td>\u22640.65%<\/td><td>\u663e\u8457\u63d0\u9ad8\u4f4e\u6e29\u97e7\u6027\u5e76\u964d\u4f4e\u97e7\u8106\u8f6c\u53d8\u6e29\u5ea6<\/td><\/tr><tr><td>\u94dc\uff08Cu\uff09<\/td><td>0.25%-0.55%<\/td><td>\u63d0\u9ad8\u5927\u6c14\u8150\u8680\u62b5\u6297\u80fd\u529b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u53ef\u4ee5\u770b\u51fa\uff0cQ355NH\u94a2\u6750\u65e2\u4fdd\u7559\u4e86\u666e\u901a\u7ed3\u6784\u94a2\u7684\u5f3a\u5ea6\u3001\u97e7\u6027\u548c\u710a\u63a5\u6027\u80fd\uff0c\u53c8\u5177\u5907\u4f18\u8d28\u94a2\u6750\u7684\u5ef6\u5c55\u6027\u3001\u8010\u8150\u8680\u6027\u3001\u8010\u9ad8\u6e29\u6027\u548c\u6297\u75b2\u52b3\u6027\u3002\u6b64\u5916\uff0cQ355NH\u94a2\u6750\u7684\u6d82\u88c5\u6027\u80fd\u662f\u666e\u901a\u78b3\u94a2\u76841.5\uff5e10\u500d\u3002\u56e0\u6b64\uff0c\u5b83\u65e0\u9700\u9891\u7e41\u6d82\u88c5\u548c\u7ef4\u62a4\uff0c\u6709\u6548\u964d\u4f4e\u4e86\u6237\u5916\u8d77\u91cd\u673a\u7684\u5168\u751f\u547d\u5468\u671f\u6210\u672c\u3002\u5176\u4f18\u5f02\u7684\u9632\u9508\u3001\u8010\u8150\u8680\u6027\u80fd\u5ef6\u957f\u4e86\u90e8\u4ef6\u7684\u4f7f\u7528\u5bff\u547d\uff0c\u5e76\u964d\u4f4e\u4e86\u6750\u6599\u6d88\u8017\uff0c\u4f7f\u5176\u6210\u4e3a\u6237\u5916\u3001\u6cbf\u6d77\u7b49\u590d\u6742\u5de5\u51b5\u4e0b\u8d77\u91cd\u673a\u7ed3\u6784\u4ef6\u7684\u9996\u9009\u94a2\u6750\u3002<\/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\uff08EN S355K2W\/ASTM A633 C\/D \u7ea7\uff09<\/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 \u662f\u4e00\u79cd\u9ad8\u5f3a\u5ea6\u8010\u5019\u94a2\uff0c\u91cd\u91cf\u8f7b\uff0c\u5177\u6709\u4f18\u5f02\u7684\u4f4e\u6e29\u51b2\u51fb\u97e7\u6027\u548c\u8010\u5927\u6c14\u8150\u8680\u6027\u80fd\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u6781\u7aef\u6c14\u5019\u6761\u4ef6\u3002NQR \u4ee3\u8868\u8010\u5927\u6c14\u8150\u8680\uff08\u98ce\u5316\uff09\u94a2\uff0c\u662f\u4e00\u79cd\u4e13\u4e3a\u6237\u5916\u3001\u6cbf\u6d77\u53ca\u5176\u4ed6\u8150\u8680\u6027\u73af\u5883\u8bbe\u8ba1\u7684\u9ad8\u5f3a\u5ea6\u4f4e\u5408\u91d1\u94a2\uff1b1 \u4e3a\u724c\u53f7\u7cfb\u5217\u7f16\u53f7\uff0c\u4ee3\u8868\u7279\u5b9a\u7684\u5408\u91d1\u6bd4\u4f8b\u548c\u6027\u80fd\u7b49\u7ea7\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u6210\u5206 <\/th><th>\u8d28\u91cf\u8bc4\u5206<\/th><th>\u673a\u68b0\u6027\u80fd<\/th><th>\u53c2\u6570<\/th><\/tr><\/thead><tbody><tr><td>\u78b3\uff08C\uff09<\/td><td>\u22640.12%<\/td><td>\u5c48\u670d\u5e94\u529b<\/td><td>\u2265450MPa<\/td><\/tr><tr><td>\u7845\uff08Si\uff09<\/td><td>\u22640.75%<\/td><td>\u6297\u62c9\u5f3a\u5ea6<\/td><td>\u2265550MPa<\/td><\/tr><tr><td>\u9530\uff08Mn\uff09<\/td><td>\u22641.5%<\/td><td>\u51b2\u51fb\u97e7\u6027<\/td><td>\u226560 J\uff08-40\u2103\u51b2\u51fb\u8bd5\u9a8c\uff09<\/td><\/tr><tr><td>\u786b\uff08S\uff09<\/td><td>\u22640.008%<\/td><td>\u4f38\u957f\u7387<\/td><td>\u226520%\uff08\u539a\u5ea6\u226414mm\uff09<\/td><\/tr><tr><td>\u78f7\uff08P\uff09<\/td><td>\u22640.025%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4ece\u4e0a\u8ff0\u57fa\u672c\u6027\u80fd\u53ef\u4ee5\u770b\u51fa\uff0cQ450NQR1 \u5177\u6709\u9ad8\u5f3a\u5ea6\u3001\u8010\u5019\u6027\u548c\u4f4e\u6e29\u97e7\u6027\u7684\u4e09\u91cd\u4f18\u52bf\uff0c\u8fd9\u6e90\u4e8e\u5176\u5408\u91d1\u5143\u7d20\u7684\u7cbe\u786e\u6bd4\u4f8b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5408\u91d1\u5143\u7d20<\/th><th>\u5185\u5bb9\u4e0a\u9650<\/th><th>\u4e3b\u8981\u529f\u80fd<\/th><\/tr><\/thead><tbody><tr><td>\u94ec\uff08Cr\uff09<\/td><td>0.3%-1.25%<\/td><td>\u63d0\u9ad8\u8010\u8150\u8680\u6027\u5e76\u589e\u5f3a\u7ec4\u7ec7\u7a33\u5b9a\u6027<\/td><\/tr><tr><td>\u954d\uff08Ni\uff09<\/td><td>0.125-0.65%<\/td><td>\u663e\u8457\u63d0\u9ad8\u4f4e\u6e29\u97e7\u6027\u5e76\u964d\u4f4e\u97e7\u8106\u8f6c\u53d8\u6e29\u5ea6<\/td><\/tr><tr><td>\u94dc\uff08Cu\uff09<\/td><td>0.25%-0.55%<\/td><td>\u63d0\u9ad8\u5927\u6c14\u8150\u8680\u62b5\u6297\u80fd\u529b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Q450NQR1\u94a2\u6750\u78b3\u542b\u91cf\u4f4e\u3001\u786b\u542b\u91cf\u6781\u4f4e\uff0c\u5e76\u7ed3\u5408Cr\u3001Ni\u3001Cu\u7b49\u5408\u91d1\u5143\u7d20\u7684\u534f\u540c\u4f5c\u7528\uff0c\u5177\u6709\u4f18\u5f02\u7684\u7efc\u5408\u6027\u80fd\uff0c\u7b26\u5408\u8010\u5019\u94a2\u884c\u4e1a\u6807\u51c6\u7684\u8981\u6c42\u3002\u5b83\u517c\u5177\u9ad8\u5f3a\u5ea6\u3001\u8010\u5019\u6027\u548c\u4f4e\u6e29\u97e7\u6027\uff0c\u662f\u6e2f\u53e3\u3001\u9732\u5929\u5806\u573a\u7b49\u91cd\u8f7d\u5de5\u51b5\u4e0b\u8d77\u91cd\u673a\u7684\u7406\u60f3\u6750\u6599\u3002<\/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\u662f\u4e00\u79cd\u9ad8\u5f3a\u5ea6\u6750\u6599\u3002\u901a\u8fc7\u6fc0\u5149\u710a\u63a5\u548c\u5e94\u529b\u6d88\u9664\u5de5\u827a\uff0c\u5176\u91cd\u91cf\u6bd4\u884c\u4e1a\u5e73\u5747\u6c34\u5e73\u964d\u4f4e151\u5428\/\u5428\uff0c\u627f\u8f7d\u80fd\u529b\u63d0\u9ad8251\u5428\/\u5428\uff0c\u75b2\u52b3\u5bff\u547d\u5ef6\u957f371\u5428\/\u5428\u3002\u5b83\u6ee1\u8db3A7\u7ea7\u91cd\u8f7d\u4f5c\u4e1a\u8981\u6c42\uff0c\u9002\u7528\u4e8e\u51b6\u91d1\u884c\u4e1a300\u5428\u7ea7\u94a2\u5305\u8d77\u91cd\u673a\u3001\u9020\u8239\u884c\u4e1a200\u5428\u7ea7\u8239\u4f53\u5206\u6bb5\u8d77\u91cd\u673a\u7b49\u5927\u5428\u4f4d\u3001\u9ad8\u6027\u80fd\u7279\u79cd\u8d77\u91cd\u673a\u3002\u5176\u6838\u5fc3\u90e8\u4ef6\u53ca\u529b\u5b66\u6027\u80fd\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u6210\u5206 <\/th><th>\u8d28\u91cf\u8bc4\u5206<\/th><th>\u673a\u68b0\u6027\u80fd<\/th><th>\u53c2\u6570<\/th><\/tr><\/thead><tbody><tr><td>\u78b3\uff08C\uff09<\/td><td>\u22640.18%<\/td><td>\u5c48\u670d\u5e94\u529b<\/td><td>\u2265690MPa<\/td><\/tr><tr><td>\u7845\uff08Si\uff09<\/td><td>\u22640.6%<\/td><td>\u6297\u62c9\u5f3a\u5ea6<\/td><td>770-940\u5146\u5e15<\/td><\/tr><tr><td>\u9530\uff08Mn\uff09<\/td><td>\u22642.0%<\/td><td>\u51b2\u51fb\u97e7\u6027<\/td><td>\u226534 J\uff08-20\u2103\u51b2\u51fb\u8bd5\u9a8c\uff09<\/td><\/tr><tr><td>\u786b\uff08S\uff09<\/td><td>\u22640.025%<\/td><td>\u4f38\u957f\u7387<\/td><td>\u226514%\uff08\u539a\u5ea6\u226416mm\uff09<\/td><\/tr><tr><td>\u78f7\uff08P\uff09<\/td><td>\u22640.03%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u540c\u65f6\uff0c\u4e3a\u4e86\u5b9e\u73b0\u8f7b\u91cf\u5316\u548c\u9ad8\u5f3a\u5ea6\u7684\u53cc\u91cd\u76ee\u6807\uff0cQ690E\u901a\u8fc7\u6dfb\u52a0\u7279\u5b9a\u7684\u5408\u91d1\u5143\u7d20\u4f18\u5316\u4e86\u5176\u5fae\u89c2\u7ed3\u6784\u548c\u6027\u80fd\u3002\u5404\u5173\u952e\u5143\u7d20\u7684\u542b\u91cf\u548c\u529f\u80fd\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5408\u91d1\u5143\u7d20<\/th><th>\u5185\u5bb9\u4e0a\u9650<\/th><th>\u4e3b\u8981\u529f\u80fd<\/th><\/tr><\/thead><tbody><tr><td>\u94ec\uff08Cr\uff09<\/td><td>\u22641.0%<\/td><td>\u63d0\u9ad8\u8010\u8150\u8680\u6027\u5e76\u589e\u5f3a\u7ec4\u7ec7\u7a33\u5b9a\u6027<\/td><\/tr><tr><td>\u954d\uff08Ni\uff09<\/td><td>\u22640.8%<\/td><td>\u663e\u8457\u63d0\u9ad8\u4f4e\u6e29\u97e7\u6027\u5e76\u964d\u4f4e\u97e7\u8106\u8f6c\u53d8\u6e29\u5ea6<\/td><\/tr><tr><td>\u94dc\uff08Cu\uff09<\/td><td>\u22640.5%<\/td><td>\u63d0\u9ad8\u5927\u6c14\u8150\u8680\u62b5\u6297\u80fd\u529b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u56e0\u6b64\uff0cQ690E 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