{"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\/ja\/posts\/overhead-and-gantry-cranes-main-girder\/","title":{"rendered":"\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u6841\uff1a\u7a76\u6975\u306e\u92fc\u6750\u30ac\u30a4\u30c9"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>\u76ee\u6b21<\/p><nav><ul><li><a href=\"#low-carbon-steel-top-choice-for-light-small-overhead-and-gantry-cranes\">\u4f4e\u70ad\u7d20\u92fc\uff1a\u8efd\u91cf\u30fb\u5c0f\u578b\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306b\u6700\u9069\u306a\u9078\u629e\u80a2<\/a><ul><li><a href=\"#q-235-b-en-s-235-jr-astm-a-283\">Q235B\uff08EN S235JR\/ASTM A283\uff09<\/a><\/li><li><a href=\"#q-235-c-q-235-d-en-s-235-j-2-astm-a-1011\">Q235C\/Q235D\uff08EN S235J2\/ASTM A1011\uff09<\/a><\/li><\/ul><\/li><li><a href=\"#high-strength-low-alloy-steel-ideal-for-medium-heavy-duty-overhead-and-gantry-cranes\">\u9ad8\u5f37\u5ea6\u4f4e\u5408\u91d1\u92fc\uff1a\u4e2d\u578b\u304a\u3088\u3073\u5927\u578b\u306e\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306b\u6700\u9069<\/a><ul><li><a href=\"#q-355-b-en-s-355-jr-astm-a-572-gr-50\">Q355B\uff08EN S355JR\/ASTM A572 Gr.50\uff09<\/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\uff08EN S420ML\/ASTM A572 Gr.70\uff09<\/a><\/li><\/ul><\/li><li><a href=\"#special-steel-choice-for-extreme-conditions\">\u7279\u6b8a\u92fc\uff1a\u904e\u9177\u306a\u6761\u4ef6\u4e0b\u3067\u4f7f\u7528\u3055\u308c\u308b\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306b\u6700\u9069\u306a\u92fc\u6750<\/a><ul><li><a href=\"#q-460-ne-ens-460-nl-astm-a-537-cl-2\">Q460NE\uff08ENS460NL\/ASTM A537 Cl.2\uff09<\/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\uff08EN S355K2W\/ASTM A633 \u30b0\u30ec\u30fc\u30c9C\/D\uff09<\/a><\/li><li><a href=\"#q-690-e-en-s-690-ql-astm-a-514-gr-b\">Q690E\uff08EN S690QL\/ASTM A514 Gr.B\uff09<\/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>\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u8981\u306a\u8377\u91cd\u652f\u6301\u69cb\u9020\u3067\u3042\u308b\u4e3b\u6841\u306f\u3001\u3057\u3070\u3057\u3070\u30af\u30ec\u30fc\u30f3\u91cd\u91cf\u306e\u304b\u306a\u308a\u306e\u90e8\u5206\u3092\u5360\u3081\u308b\u3002 <a href=\"https:\/\/www.dgcrane.com\/ja\/overhead-cranes\/\">\u5929\u4e95\u30af\u30ec\u30fc\u30f3<\/a> \u30e1\u30a4\u30f3\u30ac\u30fc\u30c0\u30fc\u306f\u30af\u30ec\u30fc\u30f3\u306e\u7dcf\u91cd\u91cf\u306e40%\uff5e60%\u3092\u5360\u3081\u3001\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u30e1\u30a4\u30f3\u30ac\u30fc\u30c0\u30fc\u306f30%\u3092\u8d85\u3048\u307e\u3059\u3002\u30e1\u30a4\u30f3\u30ac\u30fc\u30c0\u30fc\u306e\u92fc\u6750\u306f\u3001\u30af\u30ec\u30fc\u30f3\u5168\u4f53\u306e\u8010\u8377\u91cd\u80fd\u529b\u3001\u904b\u7528\u5b89\u5168\u6027\u3001\u304a\u3088\u3073\u7dcf\u5408\u30b3\u30b9\u30c8\u3092\u76f4\u63a5\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u4e2d\u56fd\u91cd\u6a5f\u68b0\u5de5\u696d\u5354\u4f1a\u306e\u30c7\u30fc\u30bf\u306b\u3088\u308b\u3068\u300165%\u3092\u8d85\u3048\u308b\u69cb\u9020\u7684\u6545\u969c\u306f\u3001\u30e1\u30a4\u30f3\u30ac\u30fc\u30c0\u30fc\u306e\u92fc\u6750\u3068\u904b\u7528\u6761\u4ef6\u306e\u4e0d\u4e00\u81f4\u306b\u8d77\u56e0\u3057\u3066\u3044\u307e\u3059\u3002\u6a5f\u5668\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3057\u3001\u9078\u5b9a\u30d7\u30ed\u30bb\u30b9\u5168\u4f53\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u3068\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u6d41\u306e\u92fc\u6750\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u6bd4\u8f03\u8868\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002\u4ee5\u4e0b\u306e\u30c6\u30ad\u30b9\u30c8\u3067\u306f\u3001\u30e1\u30a4\u30f3\u30ac\u30fc\u30c0\u30fc\u306b\u9069\u3057\u305f\u3055\u307e\u3056\u307e\u306a\u92fc\u6750\u306e\u30b3\u30a2\u7279\u6027\u3092\u5206\u6790\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u92fc\u6750<\/th><th>\u5fdc\u7528<\/th><th>\u4e2d\u56fd\uff08GB\/GB\/T\uff09<\/th><th>\u6b27\u5dde\u898f\u683c\uff08EN10025\uff09<\/th><th>\u7c73\u56fd\uff08ASTM\/AISC\uff09<\/th><th>\u964d\u4f0f\u5f37\u5ea6\uff08MPa\uff09<\/th><\/tr><\/thead><tbody><tr><td>\u4f4e\u70ad\u7d20\u92fc<\/td><td>10\u30c8\u30f3\u4ee5\u4e0b\u306e\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3<\/td><td>Q235B\/Q235C\/Q235D<\/td><td>S235JR\/S235J2<\/td><td>A283\/A1011<\/td><td>\u2265235<\/td><\/tr><tr><td rowspan=\"3\">\u9ad8\u5f37\u5ea6\u4f4e\u5408\u91d1\u92fc<\/td><td>10\u30c8\u30f3\uff5e50\u30c8\u30f3\u306e\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3<\/td><td>Q355B<\/td><td>S355JR<\/td><td>A572 Gr.50<\/td><td>355\u4ee5\u4e0a<\/td><\/tr><tr><td rowspan=\"2\">50\u30c8\u30f3\uff5e300\u30c8\u30f3\u306e\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3<\/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>420\u4ee5\u4e0a<\/td><\/tr><tr><td rowspan=\"4\">\u7279\u6b8a\u7528\u9014\u92fc<\/td><td rowspan=\"3\">\u4f4e\u6e29\u3001\u9ad8\u5f71\u97ff\u5730\u57df\u3001\u5bd2\u51b7\u6c17\u5019\u3001\u6e2f\u6e7e<\/td><td>Q460NE<\/td><td>S460NL<\/td><td>A537 \u6761\u98052<\/td><td>460\u4ee5\u4e0a<\/td><\/tr><tr><td>Q355NH<\/td><td>S355J2W<\/td><td>A633 \u30b0\u30eb\u30fc\u30d7C\/D<\/td><td>355\u4ee5\u4e0a<\/td><\/tr><tr><td>Q690E<\/td><td>S690QL<\/td><td>A514 \u30b0\u30eb\u30fc\u30d7B<\/td><td>690\u4ee5\u4e0a<\/td><\/tr><tr><td>\u8010\u5019\u6027\u3001\u5c4b\u5916\u4f7f\u7528\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u8efd\u6e1b<\/td><td>Q450NQR1<\/td><td>S355K2W<\/td><td>A709 Gr.50W<\/td><td>450\u4ee5\u4e0a<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">\u4e3b\u8981\u92fc\u6750\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u6bd4\u8f03\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\u70ad\u7d20\u92fc\uff1a\u8efd\u91cf\u30fb\u5c0f\u578b\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306b\u6700\u9069\u306a\u9078\u629e\u80a2<\/h2>\n\n\n\n<p>\u512a\u308c\u305f\u53ef\u5851\u6027\u3001\u6eb6\u63a5\u6027\u3001\u304a\u3088\u3073\u30b3\u30b9\u30c8\u9762\u3067\u306e\u5229\u70b9\u3092\u6301\u3064\u4f4e\u70ad\u7d20\u92fc\uff08Q235B \/ S235JR \/ A283 \u306a\u3069\uff09\u306f\u3001\u8efd\u91cf\u3067\u4f4e\u4f5c\u696d\u30af\u30e9\u30b9\u306e\u7528\u9014\u306b\u304a\u3051\u308b\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u6841\u306e\u4e3b\u6d41\u3068\u306a\u308b\u8cbb\u7528\u5bfe\u52b9\u679c\u306e\u9ad8\u3044\u6750\u6599\u3067\u3042\u308a\u3001\u8efd\u91cf\u5c0f\u578b\u30af\u30ec\u30fc\u30f3\uff08\u226420t\uff09\u306e\u6750\u6599\u5e02\u5834\u306e\u7d0422%\u3092\u5360\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"q-235-b-en-s-235-jr-astm-a-283\"><strong>Q235B\uff08EN S235JR\/ASTM A283\uff09<\/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\u306f\u3001\u540a\u308a\u4e0a\u3052\u88c5\u7f6e\u306b\u4f7f\u7528\u3055\u308c\u308b\u6700\u3082\u4e00\u822c\u7684\u306a\u4f4e\u70ad\u7d20\u92fc\u3067\u3042\u308a\u30015\u30c8\u30f3\u30af\u30ec\u30fc\u30f3\u306a\u3069\u306e\u8efd\u4f5c\u696d\u7528\u4f4e\u8ca0\u8377\u30af\u30ec\u30fc\u30f3\u306b\u7279\u306b\u591a\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/www.dgcrane.com\/ja\/double-girder-overhead-crane\/\">\u4e8c\u91cd\u6841\u5929\u4e95\u30af\u30ec\u30fc\u30f3<\/a> \u5009\u5eab\u3067\u4f7f\u7528\u3055\u308c\u30013\u30c8\u30f3\u306e\u30b7\u30f3\u30b0\u30eb\u30ac\u30fc\u30c0\u30fc\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3068 <a href=\"https:\/\/www.dgcrane.com\/ja\/gantry-cranes\/\">\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3<\/a> \u4f5c\u696d\u5834\u306b\u304a\u3044\u3066\u3002\u305d\u306e\u4e3b\u306a\u5316\u5b66\u7d44\u6210\u3068\u6a5f\u68b0\u7684\u7279\u6027\u3092\u4ee5\u4e0b\u306e\u8868\u306b\u793a\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u7d44\u6210<\/th><th>\u54c1\u8cea\u30b9\u30b3\u30a2<\/th><th>\u6a5f\u68b0\u7684\u7279\u6027<\/th><th>\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/th><\/tr><\/thead><tbody><tr><td>\u70ad\u7d20\uff08C\uff09<\/td><td>\u22640.2%<\/td><td>\u964d\u4f0f\u5fdc\u529b<\/td><td>\u2265235MPa<\/td><\/tr><tr><td>\u30b7\u30ea\u30b3\u30f3\uff08Si\uff09<\/td><td>\u22640.35%<\/td><td>\u6297\u5f35\u529b<\/td><td>370\uff5e500MPa<\/td><\/tr><tr><td>\u30de\u30f3\u30ac\u30f3\uff08Mn\uff09<\/td><td>0.3%-0.7%<\/td><td>\u885d\u6483\u8010\u6027<\/td><td>\u226527 J\uff0820\u2103\u3067\u306e\u885d\u6483\u8a66\u9a13\uff09<\/td><\/tr><tr><td>\u786b\u9ec4\uff08S\uff09<\/td><td>\u22640.045%<\/td><td>\u4f38\u3073\u7387<\/td><td>\u226521%\uff08\u539a\u3055\u226416mm\uff09<\/td><\/tr><tr><td>\u30ea\u30f3\uff08P\uff09<\/td><td>\u22640.045%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4e0a\u8a18\u306e\u6027\u80fd\u6307\u6a19\u306b\u57fa\u3065\u304d\u3001Q235B\u306e\u6838\u3068\u306a\u308b\u5229\u70b9\u3092\u3088\u308a\u660e\u78ba\u306b\u5206\u6790\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9ad8\u4f4e\u70ad\u7d20\u542b\u6709\u91cf\u3001\u512a\u308c\u305f\u6eb6\u63a5\u6027\u80fd\uff1a<\/strong> \u5929\u4e95\u30af\u30ec\u30fc\u30f3\u3084\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u6841\u306f\u3001\u7dfb\u5bc6\u3067\u8907\u96d1\u306a\u6eb6\u63a5\u69cb\u9020\u3092\u6709\u3057\u3066\u3044\u307e\u3059\u3002Q235B\u306f\u70ad\u7d20\u542b\u6709\u91cf\u304c\u4f4e\u3044\u305f\u3081\u3001\u5f93\u6765\u306e\u6eb6\u63a5\u30d7\u30ed\u30bb\u30b9\u3067\u3082\u9ad8\u3044\u6eb6\u63a5\u54c1\u8cea\u3092\u5b9f\u73fe\u3067\u304d\u3001\u6eb6\u63a5\u4e0d\u826f\u306e\u767a\u751f\u78ba\u7387\u3092\u4f4e\u6e1b\u3057\u3001\u9ad8\u3044\u751f\u7523\u5b89\u5b9a\u6027\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u9069\u5ea6\u306a\u5f37\u5ea6\u3001\u4e00\u822c\u7684\u306a\u885d\u6483\u306b\u8010\u3048\u308b\uff1a<\/strong> \u5ba4\u6e2920\u2103\u306b\u304a\u3051\u308b\u885d\u6483\u30a8\u30cd\u30eb\u30ae\u30fc\u304c27J\u4ee5\u4e0a\u3068\u3044\u3046\u512a\u308c\u305f\u976d\u6027\u3092\u5099\u3048\u305f\u3053\u306e\u6750\u6599\u306f\u3001\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u3084\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u904b\u8ee2\u6642\u306e\u885d\u6483\u3084\u632f\u52d5\u3092\u5438\u53ce\u3057\u3001\u6025\u6fc0\u306a\u8377\u91cd\u5909\u5316\u306b\u3088\u308b\u8106\u6027\u7834\u58ca\u3092\u9632\u304e\u3001\u3088\u308a\u5b89\u5168\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u69cb\u9020\u6027\u80fd\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u4f4e\u30b3\u30b9\u30c8\u3001\u512a\u308c\u305f\u8cbb\u7528\u5bfe\u52b9\u679c\uff1a<\/strong> Q235B\u306f\u88fd\u9020\u30b3\u30b9\u30c8\u304c\u6bd4\u8f03\u7684\u4f4e\u3044\u3002\u3055\u3089\u306b\u3001\u305d\u306e\u7dcf\u5408\u7684\u306a\u6027\u80fd\u306f\u3001\u307b\u3068\u3093\u3069\u306e\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u92fc\u69cb\u9020\u7269\u306e\u7528\u9014\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u304a\u308a\u3001\u5b89\u5168\u6027\u3068\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3057\u306a\u304c\u3089\u88fd\u9020\u30b3\u30b9\u30c8\u3092\u52b9\u679c\u7684\u306b\u524a\u6e1b\u3057\u3001\u9ad8\u3044\u8cbb\u7528\u5bfe\u52b9\u679c\u3092\u5b9f\u73fe\u3059\u308b\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>\u3057\u304b\u3057\u306a\u304c\u3089\u3001Q235B\u306f\u6750\u6599\u81ea\u4f53\u306e\u5f37\u5ea6\u7b49\u7d1a\u304a\u3088\u3073\u6027\u80fd\u7279\u6027\u306b\u9650\u754c\u304c\u3042\u308b\u305f\u3081\u3001\u4e00\u5b9a\u306e\u5236\u7d04\u3082\u5b58\u5728\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f4e\u964d\u4f0f\u5f37\u5ea6\uff1a <\/strong>Q235B\u306e\u964d\u4f0f\u5f37\u5ea6\u306f\u308f\u305a\u304b235MPa\u3067\u3059\u3002\u9ad8\u8377\u91cd\u6761\u4ef6\u4e0b\u3067\u306f\u3001\u5f37\u5ea6\u8981\u4ef6\u3092\u6e80\u305f\u3059\u305f\u3081\u306b\u92fc\u677f\u3092\u539a\u304f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u69cb\u9020\u91cd\u91cf\u304c\u5927\u5e45\u306b\u5897\u52a0\u3059\u308b\u305f\u3081\u3001\u9ad8\u8ca0\u8377\u30fb\u9ad8\u983b\u5ea6\u4f7f\u7528\u306b\u306f\u9069\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/li>\n\n\n\n<li><strong>\u8010\u8150\u98df\u6027\u304c\u4f4e\u3044\uff1a<\/strong> \u30af\u30ec\u30fc\u30f3\u306e\u92fc\u69cb\u9020\u7269\u306f\u9577\u671f\u9593\u98a8\u96e8\u306b\u3055\u3089\u3055\u308c\u308b\u305f\u3081\u3001Q235B\u306f\u8150\u98df\u3057\u3084\u3059\u304f\u3001\u9632\u9306\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u5fc5\u8981\u3068\u306a\u308a\u3001\u8150\u98df\u6027\u306e\u9ad8\u3044\u74b0\u5883\u306b\u306f\u9069\u3055\u306a\u3044\u3002<\/li>\n\n\n\n<li><strong>\u4f4e\u6e29\u74b0\u5883\u306b\u306f\u4e0d\u5411\u304d\u3067\u3059\u3002 <\/strong>Q235B\u306f\u5ba4\u6e29\u3067\u306e\u885d\u6483\u976d\u6027\u306e\u307f\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u4f4e\u6e29\u3067\u306f\u8106\u6027\u7834\u58ca\u3092\u8d77\u3053\u3057\u3084\u3059\u3044\u6027\u8cea\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4f4e\u6e29\u74b0\u5883\u3067\u76f4\u63a5\u4f7f\u7528\u3059\u308b\u3068\u8106\u6027\u7834\u58ca\u306e\u5371\u967a\u6027\u304c\u3042\u308a\u3001\u4f4e\u6e29\u92fc\u307e\u305f\u306fQ355D\/E\u30b0\u30ec\u30fc\u30c9\u306e\u92fc\u6750\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\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\uff08EN S235J2\/ASTM A1011\uff09<\/strong><\/h3>\n\n\n\n<p>Q235C\u3068Q235D\u306f\u3001Q235B\u306e\u4f4e\u6e29\u6027\u80fd\u3092\u5411\u4e0a\u3055\u305b\u305f\u6539\u826f\u578b\u3067\u3059\u3002\u4f4e\u6e29\u976d\u6027\u304c\u5411\u4e0a\u3057\u3001\u4e0d\u7d14\u7269\u304c\u5c11\u306a\u304f\u3001\u51ac\u5b63\u306e\u8106\u5316\u3082\u6291\u5236\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u5b89\u5168\u6027\u3001\u8010\u885d\u6483\u6027\u3001\u4f4e\u6e29\u5b89\u5b9a\u6027\u306b\u5bfe\u3059\u308b\u8981\u6c42\u304c\u9ad8\u3044\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u3084\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002&nbsp;<\/p>\n\n\n\n<p>Q235C\u306f0\u2103\u306727J\u4ee5\u4e0a\u306e\u885d\u6483\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u304c\u3001-10\u2103\u4ee5\u4e0b\u3067\u306f\u976d\u6027\u304c\u8457\u3057\u304f\u4f4e\u4e0b\u3057\u307e\u3059\u3002Q235D\u306f-20\u2103\u306727J\u4ee5\u4e0a\u306e\u885d\u6483\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u5fc5\u8981\u3068\u3057\u3001\u51ac\u5b63\u306e\u9577\u671f\u5c4b\u5916\u904b\u8ee2\u4e2d\u306b\u4f4e\u6e29\u8106\u6027\u7834\u58ca\u3092\u52b9\u679c\u7684\u306b\u9632\u6b62\u3057\u3001\u6700\u9ad8\u306e\u5b89\u5168\u6027\u3092\u5b9f\u73fe\u3057\u307e\u3059\u304c\u3001\u88fd\u9020\u30b3\u30b9\u30c8\u3068\u4fa1\u683c\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\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\u5f37\u5ea6\u4f4e\u5408\u91d1\u92fc\uff1a\u4e2d\u578b\u304a\u3088\u3073\u5927\u578b\u306e\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306b\u6700\u9069<\/h2>\n\n\n\n<p>\u9ad8\u5f37\u5ea6\u4f4e\u5408\u91d1\u92fc\uff08HSLA\u3068\u3082\u547c\u3070\u308c\u308b\uff09\u306f\u3001\u70ad\u7d20\u69cb\u9020\u7528\u92fc\u306bV\u3001Nb\u3001Ti\u306a\u3069\u306e\u5fae\u91cf\u306e\u5408\u91d1\u5143\u7d20\u3092\u6dfb\u52a0\u3057\u3066\u88fd\u9020\u3055\u308c\u307e\u3059\u3002\u5f37\u5ea6\u3068\u88ab\u524a\u6027\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u826f\u304f\u3001\u73fe\u5728\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u6841\u6750\u3068\u3057\u3066\u4e3b\u6d41\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u56fd\u5185\u306e\u30af\u30ec\u30fc\u30f3\u4e3b\u6841\u30fb\u7aef\u6841\u6750\u5e02\u5834\u306e58%\u4ee5\u4e0a\u3092\u5360\u3081\u3001\u6c4e\u7528\u30af\u30ec\u30fc\u30f3\u306e80%\u4ee5\u4e0a\u3067\u7b2c\u4e00\u9078\u629e\u80a2\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u4e2d\u30fb\u91cd\u8377\u91cd\u7528\u9014\u306e\u307b\u3068\u3093\u3069\u306b\u9069\u3057\u3066\u304a\u308a\u3001\u4f7f\u7528\u30cb\u30fc\u30ba\u3092\u6e80\u305f\u3057\u3001\u30b3\u30b9\u30c8\u3092\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u8cfc\u5165\u8005\u306b\u3068\u3063\u3066\u300c\u5b89\u5fc3\u3067\u304d\u308b\u9078\u629e\u80a2\u300d\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\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\uff08EN S355JR\/ASTM A572 Gr.50\uff09<\/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\u306f\u3001\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u4f4e\u5408\u91d1\u9ad8\u5f37\u5ea6\u92fc\u3067\u3042\u308a\u3001\u696d\u754c\u306e\u300c\u4e3b\u529b\u6750\u6599\u300d\u3068\u3057\u3066\u3001\u4f5c\u696d\u7b49\u7d1aA3\uff5eA5\u306e\u4e2d\u8efd\u91cf\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u4e3b\u8981\u69cb\u6210\u8981\u7d20\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u7d44\u6210 <\/th><th>\u54c1\u8cea\u30b9\u30b3\u30a2<\/th><th>\u6a5f\u68b0\u7684\u7279\u6027<\/th><th>\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/th><\/tr><\/thead><tbody><tr><td>\u70ad\u7d20\uff08C\uff09<\/td><td>\u22640.24%<\/td><td>\u964d\u4f0f\u5fdc\u529b<\/td><td>\u2265355MPa<\/td><\/tr><tr><td>\u30b7\u30ea\u30b3\u30f3\uff08Si\uff09<\/td><td>\u22640.55%<\/td><td>\u6297\u5f35\u529b<\/td><td>470\uff5e630MPa<\/td><\/tr><tr><td>\u30de\u30f3\u30ac\u30f3\uff08Mn\uff09<\/td><td>\u22641.6%<\/td><td>\u885d\u6483\u8010\u6027<\/td><td>\u226534 J\uff0820\u2103\u3067\u306e\u885d\u6483\u8a66\u9a13\uff09<\/td><\/tr><tr><td>\u786b\u9ec4\uff08S\uff09<\/td><td>\u22640.03%<\/td><td>\u4f38\u3073\u7387<\/td><td>\u226521%\uff08\u539a\u3055\u226416mm\uff09<\/td><\/tr><tr><td>\u30ea\u30f3\uff08P\uff09<\/td><td>\u22640.035%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30b3\u30a2\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u3001Q355B\u304c\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u8981\u6750\u6599\u3068\u306a\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3059\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3042\u308a\u3001\u5177\u4f53\u7684\u306b\u306f\u4ee5\u4e0b\u306e\u5229\u70b9\u3068\u3057\u3066\u73fe\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9ad8\u3044\u964d\u4f0f\u5f37\u5ea6\u6bd4\u3001\u8efd\u91cf\u8a2d\u8a08\uff1a <\/strong>\u92fc\u677f\u306e\u539a\u3055\u304c16mm\u3092\u8d85\u3048\u308b\u5834\u5408\u3001Q355B\u306e\u964d\u4f0f\u5f37\u5ea6\u306fQ235B\u3088\u308a\u3082\u7d0451%\u9ad8\u304f\u306a\u308a\u3001\u540c\u3058\u8010\u8377\u91cd\u80fd\u529b\u306715%\uff5e25%\u306e\u8efd\u91cf\u5316\u304c\u5b9f\u73fe\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30af\u30ec\u30fc\u30f3\u306e\u81ea\u91cd\u3068\u5de5\u5834\u3078\u306e\u8377\u91cd\u8ca0\u8377\u306e\u4e21\u65b9\u304c\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u4f4e\u70ad\u7d20\u5f53\u91cf\u3001\u512a\u308c\u305f\u6eb6\u63a5\u6027\uff1a<\/strong> \u6eb6\u63a5\u6642\u306e\u4f4e\u6e29\u5272\u308c\u30ea\u30b9\u30af\u306f\u4f4e\u3044\u3002Q355B\u306e\u677f\u539a\u304c16mm\u4ee5\u4e0b\u306e\u5834\u5408\u3001\u901a\u5e38\u306f\u4e88\u71b1\u306f\u4e0d\u8981\u3067\u3001\u76f4\u63a5\u6eb6\u63a5\u304c\u53ef\u80fd\u3067\u3042\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u751f\u7523\u30b5\u30a4\u30af\u30eb\u304c\u77ed\u7e2e\u3055\u308c\u3001\u751f\u7523\u52b9\u7387\u304c\u5411\u4e0a\u3059\u308b\u3002<\/li>\n\n\n\n<li><strong>\u512a\u308c\u305f\u4f4e\u6e29\u976d\u6027\uff1a<\/strong> Q355B\u306f\u4f4e\u6e29\u9069\u5fdc\u6027\u306b\u512a\u308c\u3066\u304a\u308a\u3001-20\u2103\u3067\u306e\u885d\u6483\u8a66\u9a13\u306b\u5408\u683c\u3057\u3066\u3044\u307e\u3059\u3002\u5bd2\u51b7\u5730\u3084\u9ad8\u3044\u976d\u6027\u304c\u6c42\u3081\u3089\u308c\u308b\u69cb\u9020\u7269\u306b\u9069\u3057\u3066\u304a\u308a\u3001\u4f4e\u6e29\u74b0\u5883\u4e0b\u3067\u306e\u8106\u6027\u7834\u58ca\u3092\u52b9\u679c\u7684\u306b\u9632\u6b62\u3057\u307e\u3059\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>Q355B\u306f\u7dcf\u5408\u7684\u306b\u512a\u308c\u305f\u6027\u80fd\u3092\u767a\u63ee\u3059\u308b\u3082\u306e\u306e\u3001\u7279\u306b\u4f4e\u6e29\u74b0\u5883\u3084\u8150\u98df\u74b0\u5883\u4e0b\u3001\u539a\u677f\u6eb6\u63a5\u3001\u30b3\u30b9\u30c8\u3001\u52a0\u5de5\u306e\u96e3\u3057\u3055\u3068\u3044\u3063\u305f\u70b9\u3067\u9855\u8457\u306a\u9650\u754c\u304c\u3042\u308b\u3002\u5177\u4f53\u7684\u306a\u6b20\u70b9\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4f4e\u6e29\u6027\u80fd\u306e\u5236\u9650\uff1a<\/strong> Q355B\u306f\u300120\u2103\u306b\u304a\u3051\u308b\u8010\u885d\u6483\u6027\u306e\u307f\u3092\u4fdd\u8a3c\u3057\u3066\u3044\u307e\u3059\u30020\u2103\u4ee5\u4e0b\u3067\u306f\u976d\u6027\u304c\u6025\u6fc0\u306b\u4f4e\u4e0b\u3059\u308b\u305f\u3081\u3001\u51b7\u8535\u5009\u5eab\u3084\u6975\u5bd2\u306e\u5c4b\u5916\u3067\u4f7f\u7528\u3059\u308b\u3068\u4f4e\u6e29\u8106\u5316\u306e\u30ea\u30b9\u30af\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u6975\u5bd2\u74b0\u5883\u3067\u306f\u4f7f\u7528\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n\n\n\n<li><strong>\u539a\u677f\u6eb6\u63a5\u306e\u96e3\u6613\u5ea6\u304c\u9ad8\u3044\uff1a<\/strong> Q355B\u92fc\u677f\u306e\u539a\u3055\u304c25mm\u3092\u8d85\u3048\u308b\u3068\u3001\u70ad\u7d20\u5f53\u91cf\u5024\u304c\u5927\u5e45\u306b\u4e0a\u6607\u3057\u3001\u6eb6\u63a5\u5272\u308c\u306e\u30ea\u30b9\u30af\u304c\u9ad8\u307e\u308b\u3002\u305d\u306e\u305f\u3081\u3001\u6eb6\u63a5\u6642\u306b\u306f\u4e88\u71b1\u3068\u53b3\u5bc6\u306a\u6e29\u5ea6\u5236\u5fa1\u304c\u5fc5\u8981\u3068\u306a\u308a\u3001\u52a0\u5de5\u5de5\u7a0b\u304c\u3088\u308a\u8907\u96d1\u306b\u306a\u308b\u3002<\/li>\n\n\n\n<li><strong>Q235B\u3088\u308a\u3082\u30b3\u30b9\u30c8\u304c\u9ad8\u3044\uff1a<\/strong> Q355B\u306f\u4e00\u822c\u7684\u306bQ235B\u3088\u308a\u308210%\uff5e15%\u9ad8\u4fa1\u3067\u3059\u3002\u8efd\u8ca0\u8377\u7528\u9014\u3084\u975e\u8010\u8377\u91cd\u90e8\u54c1\u306e\u5834\u5408\u3001Q355B\u3092\u63a1\u7528\u3057\u3066\u3082\u6027\u80fd\u306f\u5411\u4e0a\u3059\u308b\u3082\u306e\u306e\u3001\u30b3\u30b9\u30c8\u9762\u3067\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3042\u308a\u307e\u305b\u3093\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 (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>\u964d\u4f0f\u5f37\u5ea6\u304c390MPa\u3092\u8d85\u3048\u308bQ390B\u306f\u3001\u512a\u308c\u305f\u8010\u8377\u91cd\u80fd\u529b\u3068\u69cb\u9020\u5b89\u5168\u6027\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u540c\u3058\u8377\u91cd\u6761\u4ef6\u4e0b\u3067\u306f\u3001Q355B\u3068\u6bd4\u8f03\u3057\u3066\u92fc\u6750\u4f7f\u7528\u91cf\u3092\u7d04151\u30c8\u30f3\u524a\u6e1b\u3067\u304d\u308b\u305f\u3081\u3001\u9ad8\u5f37\u5ea6\u3092\u5fc5\u8981\u3068\u3059\u308b\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u3084\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306b\u5e45\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u7d44\u6210 <\/th><th>\u54c1\u8cea\u30b9\u30b3\u30a2<\/th><th>\u6a5f\u68b0\u7684\u7279\u6027<\/th><th>\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/th><\/tr><\/thead><tbody><tr><td>\u70ad\u7d20\uff08C\uff09<\/td><td>\u22640.2%<\/td><td>\u964d\u4f0f\u5fdc\u529b<\/td><td>\u2265390MPa<\/td><\/tr><tr><td>\u30b7\u30ea\u30b3\u30f3\uff08Si\uff09<\/td><td>\u22640.5%<\/td><td>\u6297\u5f35\u529b<\/td><td>490\uff5e650MPa<\/td><\/tr><tr><td>\u30de\u30f3\u30ac\u30f3\uff08Mn\uff09<\/td><td>\u22641.7%<\/td><td>\u885d\u6483\u8010\u6027<\/td><td>\u226534 J\uff0820\u2103\u3067\u306e\u885d\u6483\u8a66\u9a13\uff09<\/td><\/tr><tr><td>\u786b\u9ec4\uff08S\uff09<\/td><td>\u22640.035%<\/td><td>\u4f38\u3073\u7387<\/td><td>\u226520%\uff08\u539a\u3055\u226416mm\uff09<\/td><\/tr><tr><td>\u30ea\u30f3\uff08P\uff09<\/td><td>\u22640.035%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Q390B\u306f\u70ad\u7d20\u542b\u6709\u91cf\u304c\u5c11\u306a\u3044\u305f\u3081\u3001\u713c\u5165\u308c\u713c\u623b\u3057\u306b\u306f\u9069\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u306a\u304c\u3089\u3001\u512a\u308c\u305f\u8010\u6469\u8017\u6027\u3068\u9069\u5ea6\u306a\u8010\u98df\u6027\u3092\u5099\u3048\u3066\u304a\u308a\u3001\u5927\u6c17\u6761\u4ef6\u3084\u7279\u5b9a\u306e\u5316\u5b66\u5a92\u4f53\u306b\u3088\u308b\u8150\u98df\u306b\u8010\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\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\u306f\u8d85\u9ad8\u5f37\u5ea6\u92fc\u3067\u3059\u3002 <em>\u4e2d\u56fd\u9244\u9aa8\u69cb\u9020\u7523\u696d\u306e\u767a\u5c55\u72b6\u6cc1\u3068\u9244\u92fc\u9700\u8981\u306e\u5206\u6790<\/em>Q420B\u306f501\u30c8\u30f3\u4ee5\u4e0a\u306e\u9ad8\u5f37\u5ea6\u92fc\u3092\u5360\u3081\u3001\u4e3b\u306b\u5efa\u8a2d\u3001\u6a4b\u6881\u3001\u307e\u305f\u306f50\uff5e300\u30c8\u30f3\u306e\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u6881\u3084\u6e2f\u6e7e\u6a5f\u68b0\u306a\u3069\u306e\u91cd\u6a5f\u7528\u306e\u92fc\u69cb\u9020\u7269\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u7d44\u6210 <\/th><th>\u54c1\u8cea\u30b9\u30b3\u30a2<\/th><th>\u6a5f\u68b0\u7684\u7279\u6027<\/th><th>\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/th><\/tr><\/thead><tbody><tr><td>\u70ad\u7d20\uff08C\uff09<\/td><td>\u22640.2%<\/td><td>\u964d\u4f0f\u5fdc\u529b<\/td><td>\u2265420MPa<\/td><\/tr><tr><td>\u30b7\u30ea\u30b3\u30f3\uff08Si\uff09<\/td><td>\u22640.55%<\/td><td>\u6297\u5f35\u529b<\/td><td>520\uff5e680MPa<\/td><\/tr><tr><td>\u30de\u30f3\u30ac\u30f3\uff08Mn\uff09<\/td><td>\u22641.7%<\/td><td>\u885d\u6483\u8010\u6027<\/td><td>\u226534 J\uff0820\u2103\u3067\u306e\u885d\u6483\u8a66\u9a13\uff09<\/td><\/tr><tr><td>\u786b\u9ec4\uff08S\uff09<\/td><td>\u22640.035%<\/td><td>\u4f38\u3073\u7387<\/td><td>\u226518%\uff08\u539a\u3055\u226416mm\uff09<\/td><\/tr><tr><td>\u30ea\u30f3\uff08P\uff09<\/td><td>\u22640.035%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u3057\u304b\u3057\u3001Q420B\u92fc\u677f\u306e\u539a\u3055\u304c\u5897\u3059\u3068\u3001\u964d\u4f0f\u5f37\u5ea6\u306f\u6bb5\u968e\u7684\u306b\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u539a\u3055\u304c16mm\u4ee5\u4e0b\u306e\u5834\u5408\u3001\u964d\u4f0f\u5f37\u5ea6\u306f420MPa\u4ee5\u4e0a\u3067\u3059\u304c\u3001\u539a\u3055\u304c50mm\u3092\u8d85\u3048\u308b\u3068\u3001\u964d\u4f0f\u5f37\u5ea6\u306f360MPa\u4ee5\u4e0b\u306b\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u8d85\u539a\u677f\u7528\u9014\u3067\u306f\u3001\u5f37\u5ea6\u8981\u4ef6\u3092\u6e80\u305f\u3059\u305f\u3081\u306b\u88fd\u9020\u5de5\u7a0b\u3092\u6700\u9069\u5316\u3059\u308b\u304b\u3001\u3088\u308a\u9ad8\u30b0\u30ec\u30fc\u30c9\u306e\u92fc\u6750\u3092\u9078\u629e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u305d\u308c\u306b\u4f34\u3044\u30b3\u30b9\u30c8\u3082\u5897\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"special-steel-choice-for-extreme-conditions\">\u7279\u6b8a\u92fc\uff1a\u904e\u9177\u306a\u6761\u4ef6\u4e0b\u3067\u4f7f\u7528\u3055\u308c\u308b\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u304a\u3088\u3073\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306b\u6700\u9069\u306a\u92fc\u6750<\/h2>\n\n\n\n<p>\u7279\u6b8a\u92fc\u306f\u3001\u904e\u9177\u306a\u4f5c\u696d\u6761\u4ef6\u4e0b\u306b\u304a\u3051\u308b\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u3084\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u6841\u5411\u3051\u306b\u7279\u6ce8\u3055\u308c\u305f\u6750\u6599\u3067\u3059\u3002\u4f4e\u70ad\u7d20\u92fc\u3084\u9ad8\u5f37\u5ea6\u4f4e\u5408\u91d1\u92fc\u3068\u306f\u7570\u306a\u308a\u3001\u7cbe\u5bc6\u306a\u5408\u91d1\u6bd4\u3068\u52a0\u5de5\u30d7\u30ed\u30bb\u30b9\u306e\u6700\u9069\u5316\u306b\u3088\u308a\u3001\u6975\u5bd2\u3001\u9ad8\u5869\u5206\u5674\u9727\u3001\u5f37\u3044\u8150\u98df\u3001\u8d85\u5927\u578b\u91cd\u91cf\u8377\u91cd\u3001\u9ad8\u983b\u5ea6\u9023\u7d9a\u904b\u8ee2\u3068\u3044\u3063\u305f\u72b6\u6cc1\u4e0b\u306b\u304a\u3051\u308b\u5f93\u6765\u92fc\u306e\u6027\u80fd\u4e0a\u306e\u6b20\u70b9\u3092\u514b\u670d\u3057\u3001\u904e\u9177\u306a\u74b0\u5883\u4e0b\u306b\u304a\u3051\u308b\u6a5f\u5668\u306e\u5b89\u5168\u6027\u3068\u9577\u671f\u904b\u7528\u3092\u652f\u3048\u308b\u4e2d\u6838\u7684\u306a\u6750\u6599\u3068\u306a\u3063\u3066\u3044\u307e\u3059\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\uff08ENS460NL\/ASTM A537 Cl.2\uff09<\/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\u306f\u3001\u904e\u9177\u306a\u4f5c\u696d\u74b0\u5883\u5411\u3051\u306b\u7279\u5225\u306b\u8a2d\u8a08\u3055\u308c\u305f\u8010\u98df\u6027\u4f4e\u5408\u91d1\u92fc\u3067\u3059\u3002\u30b0\u30ec\u30fc\u30c9\u306e\u300cN\u300d\u306f\u8010\u5019\u6027\u3092\u793a\u3057\u3001\u300cE\u300d\u306f-40\u2103\u306e\u4f4e\u6e29\u885d\u6483\u5b9a\u683c\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002\u901a\u5e38\u306e\u92fc\u6750\u3068\u6bd4\u8f03\u3057\u3066\u3001\u91cd\u8377\u91cd\u69cb\u9020\u7269\u306e\u5f37\u5ea6\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3001\u6975\u5bd2\u3001\u9ad8\u6e7f\u5ea6\u3001\u5869\u6c34\u5674\u9727\u74b0\u5883\u4e0b\u3067\u3082\u9577\u671f\u9593\u5b89\u5b9a\u3057\u3066\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u4e3b\u306a\u6027\u80fd\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u7d44\u6210 <\/th><th>\u54c1\u8cea\u30b9\u30b3\u30a2<\/th><th>\u6a5f\u68b0\u7684\u7279\u6027<\/th><th>\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/th><\/tr><\/thead><tbody><tr><td>\u70ad\u7d20\uff08C\uff09<\/td><td>\u22640.18%<\/td><td>\u964d\u4f0f\u5fdc\u529b<\/td><td>\u2265460MPa<\/td><\/tr><tr><td>\u30b7\u30ea\u30b3\u30f3\uff08Si\uff09<\/td><td>\u22640.55%<\/td><td>\u6297\u5f35\u529b<\/td><td>540\uff5e720MPa<\/td><\/tr><tr><td>\u30de\u30f3\u30ac\u30f3\uff08Mn\uff09<\/td><td>1.0%-1.6%<\/td><td>\u885d\u6483\u8010\u6027<\/td><td>\u226520 J\uff08-40\u2103\u3067\u306e\u885d\u6483\u8a66\u9a13\uff09<\/td><\/tr><tr><td>\u786b\u9ec4\uff08S\uff09<\/td><td>\u22640.02%<\/td><td>\u4f38\u3073\u7387<\/td><td>\u226517%\uff08\u539a\u3055\u226416mm\uff09<\/td><\/tr><tr><td>\u30ea\u30f3\uff08P\uff09<\/td><td>\u22640.025%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u8010\u5019\u6027\u3068\u4f4e\u6e29\u6027\u80fd\u306e\u4e8c\u91cd\u5411\u4e0a\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u3001Q460NE\u306e\u914d\u5408\u306b\u306f\u7279\u5b9a\u306e\u5408\u91d1\u5143\u7d20\u304c\u6dfb\u52a0\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5404\u5143\u7d20\u306e\u542b\u6709\u91cf\u3068\u6a5f\u80fd\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\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>\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u4e0a\u9650<\/th><th>\u4e3b\u306a\u6a5f\u80fd<\/th><\/tr><\/thead><tbody><tr><td>\u30af\u30ed\u30e0\uff08Cr\uff09<\/td><td>\u22640.30%<\/td><td>\u8010\u8150\u98df\u6027\u3092\u5411\u4e0a\u3055\u305b\u3001\u7d44\u7e54\u306e\u5b89\u5b9a\u6027\u3092\u9ad8\u3081\u308b<\/td><\/tr><tr><td>\u30cb\u30c3\u30b1\u30eb\uff08Ni\uff09<\/td><td>\u22640.80%<\/td><td>\u4f4e\u6e29\u976d\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u3001\u5ef6\u6027-\u8106\u6027\u9077\u79fb\u6e29\u5ea6\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3002<\/td><\/tr><tr><td>\u9285\uff08Cu\uff09<\/td><td>\u22640.40%<\/td><td>\u5927\u6c17\u8150\u98df\u8010\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u8981\u7d04\u3059\u308b\u3068\u3001Q460NE\u306f\u4f4e\u70ad\u7d20\u8a2d\u8a08\u3068Cr\u3001Ni\u3001Cu\u306a\u3069\u306e\u5408\u91d1\u5143\u7d20\u306e\u76f8\u4e57\u52b9\u679c\u306b\u3088\u308a\u3001\u9ad8\u6e7f\u5ea6\u30fb\u9ad8\u5869\u5206\u74b0\u5883\u306b\u304a\u3051\u308b\u6a5f\u68b0\u7684\u7279\u6027\u3068\u8010\u4e45\u6027\u306e\u8981\u6c42\u3092\u6e80\u305f\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002-40\u2103\u3068\u3044\u3046\u6975\u4f4e\u6e29\u4e0b\u3067\u3082\u3001Q460NE\u306f\u512a\u308c\u305f\u885d\u6483\u976d\u6027\u3092\u7dad\u6301\u3057\u3001\u4f4e\u6e29\u306b\u3088\u308b\u6750\u6599\u8106\u5316\u3092\u52b9\u679c\u7684\u306b\u9632\u6b62\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6975\u5bd2\u5730\u57df\u306b\u304a\u3051\u308b\u571f\u6728\u5de5\u4e8b\u306b\u304a\u3044\u3066\u5f37\u56fa\u306a\u5b89\u5168\u30d0\u30ea\u30a2\u3092\u63d0\u4f9b\u3057\u3001\u8a2d\u5099\u306e\u4fe1\u983c\u6027\u3068\u904b\u7528\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\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 (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\u306f\u3001\u8010\u5019\u6027\u92fc\u677f\u3068\u3082\u547c\u3070\u308c\u308b\u5927\u6c17\u8150\u98df\u8010\u6027\u92fc\u677f\u3067\u3059\u3002\u300cN\u300d\u3068\u300cH\u300d\u306e\u4fee\u98fe\u5b50\u306f\u3001\u901a\u5e38\u3001\u713c\u306a\u3089\u3057\u51e6\u7406\u3068\u4f4e\u6e29\u976d\u6027\u306e\u5411\u4e0a\u304c\u5fc5\u8981\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u713c\u306a\u3089\u3057\u51e6\u7406\uff08\u76f8\u5909\u614b\u6e29\u5ea6\u4ee5\u4e0a\u3067\u4fdd\u6301\u3057\u305f\u5f8c\u3001\u7a7a\u51b7\u3059\u308b\uff09\u306b\u3088\u308a\u3001\u7d50\u6676\u7c92\u304c\u5fae\u7d30\u5316\u3055\u308c\u3001\u3088\u308a\u5fae\u7d30\u306a\u30d5\u30a7\u30e9\u30a4\u30c8\u30fb\u30d1\u30fc\u30e9\u30a4\u30c8\u7d44\u7e54\u304c\u5f62\u6210\u3055\u308c\u3001\u539a\u3055\u65b9\u5411\u306e\u7279\u6027\u304c\u3088\u308a\u5747\u4e00\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u7d44\u6210 <\/th><th>\u54c1\u8cea\u30b9\u30b3\u30a2<\/th><th>\u6a5f\u68b0\u7684\u7279\u6027<\/th><th>\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/th><\/tr><\/thead><tbody><tr><td>\u70ad\u7d20\uff08C\uff09<\/td><td>\u22640.16%<\/td><td>\u964d\u4f0f\u5fdc\u529b<\/td><td>\u2265355MPa<\/td><\/tr><tr><td>\u30b7\u30ea\u30b3\u30f3\uff08Si\uff09<\/td><td>\u22640.5%<\/td><td>\u6297\u5f35\u529b<\/td><td>490\uff5e630MPa<\/td><\/tr><tr><td>\u30de\u30f3\u30ac\u30f3\uff08Mn\uff09<\/td><td>0.5%-1.5%<\/td><td>\u885d\u6483\u8010\u6027<\/td><td>\u226534 J\uff08-40\u2103\u3067\u306e\u885d\u6483\u8a66\u9a13\uff09<\/td><\/tr><tr><td>\u786b\u9ec4\uff08S\uff09<\/td><td>\u22640.03%<\/td><td>\u4f38\u3073\u7387<\/td><td>\u226517%\uff08\u539a\u3055\u226416mm\uff09<\/td><\/tr><tr><td>\u30ea\u30f3\uff08P\uff09<\/td><td>\u22640.03%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4f4e\u70ad\u7d20\u92fc\u3068\u6bd4\u8f03\u3057\u3066\u3001Q355NH\u306f\u8010\u5019\u6027\u304c2\uff5e8\u500d\u5411\u4e0a\u3057\u3066\u3044\u308b\u304c\u3001\u3053\u308c\u306f\u4e3b\u306b\u7279\u5b9a\u306e\u5408\u91d1\u5143\u7d20\u3092\u914d\u5408\u306b\u52a0\u3048\u305f\u3053\u3068\u306b\u3088\u308b\u3082\u306e\u3067\u3042\u308b\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>\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u4e0a\u9650<\/th><th>\u4e3b\u306a\u6a5f\u80fd<\/th><\/tr><\/thead><tbody><tr><td>\u30af\u30ed\u30e0\uff08Cr\uff09<\/td><td>0.4%-0.8%<\/td><td>\u8010\u8150\u98df\u6027\u3092\u5411\u4e0a\u3055\u305b\u3001\u7d44\u7e54\u306e\u5b89\u5b9a\u6027\u3092\u9ad8\u3081\u308b<\/td><\/tr><tr><td>\u30cb\u30c3\u30b1\u30eb\uff08Ni\uff09<\/td><td>\u22640.65%<\/td><td>\u4f4e\u6e29\u976d\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u3001\u5ef6\u6027-\u8106\u6027\u9077\u79fb\u6e29\u5ea6\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3002<\/td><\/tr><tr><td>\u9285\uff08Cu\uff09<\/td><td>0.25%-0.55%<\/td><td>\u5927\u6c17\u8150\u98df\u8010\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Q355NH\u306f\u3001\u901a\u5e38\u306e\u69cb\u9020\u7528\u92fc\u306e\u5f37\u5ea6\u3001\u976d\u6027\u3001\u6eb6\u63a5\u6027\u3092\u7dad\u6301\u3057\u3064\u3064\u3001\u9ad8\u54c1\u8cea\u92fc\u306e\u5ef6\u6027\u3001\u8010\u98df\u6027\u3001\u8010\u9ad8\u6e29\u6027\u3001\u8010\u75b2\u52b4\u6027\u3082\u517c\u306d\u5099\u3048\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001Q355NH\u306e\u5857\u88c5\u6027\u306f\u3001\u901a\u5e38\u306e\u70ad\u7d20\u92fc\u306e1.5\uff5e10\u500d\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u983b\u7e41\u306a\u5857\u88c5\u3084\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u4e0d\u8981\u3068\u306a\u308a\u3001\u5c4b\u5916\u30af\u30ec\u30fc\u30f3\u306e\u7dcf\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u30b3\u30b9\u30c8\u3092\u52b9\u679c\u7684\u306b\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002\u8010\u9306\u6027\u3001\u8010\u98df\u6027\u306b\u3088\u308a\u90e8\u54c1\u306e\u8010\u7528\u5e74\u6570\u304c\u5ef6\u9577\u3055\u308c\u3001\u6750\u6599\u6d88\u8cbb\u91cf\u3082\u524a\u6e1b\u3067\u304d\u308b\u305f\u3081\u3001\u5c4b\u5916\u3084\u6cbf\u5cb8\u74b0\u5883\u306a\u3069\u306e\u8907\u96d1\u306a\u4f5c\u696d\u6761\u4ef6\u4e0b\u3067\u4f7f\u7528\u3055\u308c\u308b\u30af\u30ec\u30fc\u30f3\u69cb\u9020\u90e8\u54c1\u306b\u6700\u9069\u306a\u92fc\u6750\u3067\u3059\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 (EN S355K2W\/ASTM A633 \u30b0\u30ec\u30fc\u30c9 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\u306f\u3001\u8efd\u91cf\u5316\u3092\u5b9f\u73fe\u3057\u305f\u9ad8\u5f37\u5ea6\u8010\u5019\u6027\u92fc\u3067\u3001\u4f4e\u6e29\u885d\u6483\u976d\u6027\u3068\u8010\u5927\u6c17\u8150\u98df\u6027\u306b\u512a\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u69d8\u3005\u306a\u904e\u9177\u306a\u6c17\u5019\u6761\u4ef6\u4e0b\u3067\u306e\u4f7f\u7528\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002NQR\u306f\u8010\u5927\u6c17\u8150\u98df\u6027\uff08\u8010\u5019\u6027\uff09\u92fc\u3092\u8868\u3057\u3001\u5c4b\u5916\u3001\u6cbf\u5cb8\u90e8\u3001\u305d\u306e\u4ed6\u306e\u8150\u98df\u74b0\u5883\u5411\u3051\u306b\u7279\u5225\u306b\u8a2d\u8a08\u3055\u308c\u305f\u9ad8\u5f37\u5ea6\u4f4e\u5408\u91d1\u92fc\u3067\u3059\u30021\u306f\u30b0\u30ec\u30fc\u30c9\u30b7\u30ea\u30fc\u30ba\u756a\u53f7\u3067\u3001\u7279\u5b9a\u306e\u5408\u91d1\u6bd4\u7387\u3068\u6027\u80fd\u30ec\u30d9\u30eb\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u7d44\u6210 <\/th><th>\u54c1\u8cea\u30b9\u30b3\u30a2<\/th><th>\u6a5f\u68b0\u7684\u7279\u6027<\/th><th>\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/th><\/tr><\/thead><tbody><tr><td>\u70ad\u7d20\uff08C\uff09<\/td><td>\u22640.12%<\/td><td>\u964d\u4f0f\u5fdc\u529b<\/td><td>\u2265450MPa<\/td><\/tr><tr><td>\u30b7\u30ea\u30b3\u30f3\uff08Si\uff09<\/td><td>\u22640.75%<\/td><td>\u6297\u5f35\u529b<\/td><td>\u2265550MPa<\/td><\/tr><tr><td>\u30de\u30f3\u30ac\u30f3\uff08Mn\uff09<\/td><td>\u22641.5%<\/td><td>\u885d\u6483\u8010\u6027<\/td><td>\u226560 J\uff08-40\u2103\u3067\u306e\u885d\u6483\u8a66\u9a13\uff09<\/td><\/tr><tr><td>\u786b\u9ec4\uff08S\uff09<\/td><td>\u22640.008%<\/td><td>\u4f38\u3073\u7387<\/td><td>\u226520%\uff08\u539a\u3055\u226414mm\uff09<\/td><\/tr><tr><td>\u30ea\u30f3\uff08P\uff09<\/td><td>\u22640.025%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4e0a\u8a18\u306e\u57fa\u672c\u7684\u306a\u7279\u6027\u304b\u3089\u308f\u304b\u308b\u3088\u3046\u306b\u3001Q450NQR1\u306f\u3001\u5408\u91d1\u5143\u7d20\u306e\u6b63\u78ba\u306a\u6bd4\u7387\u306b\u3088\u3063\u3066\u3001\u9ad8\u5f37\u5ea6\u3001\u8010\u5019\u6027\u3001\u4f4e\u6e29\u976d\u6027\u3068\u3044\u30463\u3064\u306e\u5229\u70b9\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\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>\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u4e0a\u9650<\/th><th>\u4e3b\u306a\u6a5f\u80fd<\/th><\/tr><\/thead><tbody><tr><td>\u30af\u30ed\u30e0\uff08Cr\uff09<\/td><td>0.3%-1.25%<\/td><td>\u8010\u8150\u98df\u6027\u3092\u5411\u4e0a\u3055\u305b\u3001\u7d44\u7e54\u306e\u5b89\u5b9a\u6027\u3092\u9ad8\u3081\u308b<\/td><\/tr><tr><td>\u30cb\u30c3\u30b1\u30eb\uff08Ni\uff09<\/td><td>0.125-0.65%<\/td><td>\u4f4e\u6e29\u976d\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u3001\u5ef6\u6027-\u8106\u6027\u9077\u79fb\u6e29\u5ea6\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3002<\/td><\/tr><tr><td>\u9285\uff08Cu\uff09<\/td><td>0.25%-0.55%<\/td><td>\u5927\u6c17\u8150\u98df\u8010\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Q450NQR1\u306f\u3001\u4f4e\u70ad\u7d20\u30fb\u6975\u4f4e\u786b\u9ec4\u542b\u6709\u91cf\u306b\u52a0\u3048\u3001Cr\u3001Ni\u3001Cu\u306e\u5408\u91d1\u5143\u7d20\u306e\u76f8\u4e57\u52b9\u679c\u306b\u3088\u308a\u3001\u8010\u5019\u6027\u92fc\u696d\u754c\u306e\u57fa\u6e96\u3092\u6e80\u305f\u3059\u512a\u308c\u305f\u7dcf\u5408\u6027\u80fd\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u9ad8\u5f37\u5ea6\u3001\u8010\u5019\u6027\u3001\u4f4e\u6e29\u976d\u6027\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u53d6\u308c\u3066\u304a\u308a\u3001\u6e2f\u6e7e\u3084\u5c4b\u5916\u4fdd\u7ba1\u5834\u306a\u3069\u306e\u904e\u9177\u306a\u4f5c\u696d\u74b0\u5883\u3067\u4f7f\u7528\u3055\u308c\u308b\u30af\u30ec\u30fc\u30f3\u306b\u6700\u9069\u306a\u6750\u6599\u3067\u3059\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\uff08EN S690QL\/ASTM A514 Gr.B\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\/Q690E.jpg\" alt=\"\" class=\"wp-image-16949\"><\/figure>\n\n\n\n<p>Q690E\u306f\u9ad8\u5f37\u5ea6\u6750\u6599\u3067\u3059\u3002\u30ec\u30fc\u30b6\u30fc\u6eb6\u63a5\u3068\u5fdc\u529b\u9664\u53bb\u51e6\u7406\u306b\u3088\u308a\u3001\u696d\u754c\u5e73\u5747\u3068\u6bd4\u8f03\u3057\u3066\u91cd\u91cf\u309215%\u524a\u6e1b\u3001\u8010\u8377\u91cd\u309225%\u5411\u4e0a\u3001\u75b2\u52b4\u5bff\u547d\u309237%\u5ef6\u9577\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002A7\u91cd\u8377\u91cd\u4f5c\u696d\u30ec\u30d9\u30eb\u3092\u6e80\u305f\u3057\u3066\u304a\u308a\u3001\u51b6\u91d1\u696d\u754c\u306e300\u30c8\u30f3\u53d6\u934b\u30af\u30ec\u30fc\u30f3\u3084\u9020\u8239\u696d\u754c\u306e200\u30c8\u30f3\u8239\u4f53\u30bb\u30af\u30b7\u30e7\u30f3\u540a\u308a\u4e0a\u3052\u30af\u30ec\u30fc\u30f3\u306a\u3069\u3001\u5927\u578b\u9ad8\u6027\u80fd\u7279\u6b8a\u30af\u30ec\u30fc\u30f3\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u4e3b\u8981\u69cb\u6210\u8981\u7d20\u3068\u6a5f\u68b0\u7684\u7279\u6027\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5316\u5b66\u7d44\u6210 <\/th><th>\u54c1\u8cea\u30b9\u30b3\u30a2<\/th><th>\u6a5f\u68b0\u7684\u7279\u6027<\/th><th>\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/th><\/tr><\/thead><tbody><tr><td>\u70ad\u7d20\uff08C\uff09<\/td><td>\u22640.18%<\/td><td>\u964d\u4f0f\u5fdc\u529b<\/td><td>\u2265690MPa<\/td><\/tr><tr><td>\u30b7\u30ea\u30b3\u30f3\uff08Si\uff09<\/td><td>\u22640.6%<\/td><td>\u6297\u5f35\u529b<\/td><td>770\uff5e940MPa<\/td><\/tr><tr><td>\u30de\u30f3\u30ac\u30f3\uff08Mn\uff09<\/td><td>\u22642.0%<\/td><td>\u885d\u6483\u8010\u6027<\/td><td>\u226534 J\uff08-20\u2103\u3067\u306e\u885d\u6483\u8a66\u9a13\uff09<\/td><\/tr><tr><td>\u786b\u9ec4\uff08S\uff09<\/td><td>\u22640.025%<\/td><td>\u4f38\u3073\u7387<\/td><td>\u226514%\uff08\u539a\u3055\u226416mm\uff09<\/td><\/tr><tr><td>\u30ea\u30f3\uff08P\uff09<\/td><td>\u22640.03%<\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4e00\u65b9\u3001\u8efd\u91cf\u5316\u3068\u9ad8\u5f37\u5ea6\u5316\u3068\u3044\u3046\u4e8c\u3064\u306e\u76ee\u6a19\u3092\u9054\u6210\u3059\u308b\u305f\u3081\u306b\u3001Q690E\u306f\u7279\u5b9a\u306e\u5408\u91d1\u5143\u7d20\u3092\u6dfb\u52a0\u3059\u308b\u3053\u3068\u3067\u5fae\u7d30\u69cb\u9020\u3068\u7279\u6027\u3092\u6700\u9069\u5316\u3057\u3066\u3044\u308b\u3002\u5404\u4e3b\u8981\u5143\u7d20\u306e\u542b\u6709\u91cf\u3068\u6a5f\u80fd\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3042\u308b\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>\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u4e0a\u9650<\/th><th>\u4e3b\u306a\u6a5f\u80fd<\/th><\/tr><\/thead><tbody><tr><td>\u30af\u30ed\u30e0\uff08Cr\uff09<\/td><td>\u22641.0%<\/td><td>\u8010\u8150\u98df\u6027\u3092\u5411\u4e0a\u3055\u305b\u3001\u7d44\u7e54\u306e\u5b89\u5b9a\u6027\u3092\u9ad8\u3081\u308b<\/td><\/tr><tr><td>\u30cb\u30c3\u30b1\u30eb\uff08Ni\uff09<\/td><td>\u22640.8%<\/td><td>\u4f4e\u6e29\u976d\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u3001\u5ef6\u6027-\u8106\u6027\u9077\u79fb\u6e29\u5ea6\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3002<\/td><\/tr><tr><td>\u9285\uff08Cu\uff09<\/td><td>\u22640.5%<\/td><td>\u5927\u6c17\u8150\u98df\u8010\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u3057\u305f\u304c\u3063\u3066\u3001Q690E\u306f\u975e\u5e38\u306b\u9ad8\u3044\u8010\u8377\u91cd\u80fd\u529b\u3092\u5099\u3048\u3066\u304a\u308a\u3001\u4e3b\u6881\u306e\u65ad\u9762\u7a4d\u3092\u5c0f\u3055\u304f\u3057\u306a\u304c\u3089\u8377\u91cd\u306e\u4e0a\u9650\u3092\u5f15\u304d\u4e0a\u3052\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u4f4e\u6e29\u976d\u6027\u3068\u75b2\u52b4\u62b5\u6297\u306b\u3082\u512a\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u9ad8\u5468\u6ce2\u30fb\u9ad8\u8377\u91cd\u306e\u9023\u7d9a\u904b\u8ee2\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30b3\u30b9\u30c8\u306f\u6bd4\u8f03\u7684\u9ad8\u3044\u305f\u3081\u3001\u5b9f\u969b\u306e\u8010\u8377\u91cd\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u9078\u629e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30af\u30ec\u30fc\u30f3\u92fc\u69cb\u9020\u6750\u6599\u306b\u95a2\u3059\u308b20\u5e74\u4ee5\u4e0a\u306e\u5c02\u9580\u77e5\u8b58\u3092\u6709\u3057\u3001 <strong>DGCRANE<\/strong> \u6750\u6599\u9078\u5b9a\u306e\u3042\u3089\u3086\u308b\u7d30\u90e8\u304c\u3001\u3055\u307e\u3056\u307e\u306a\u30c8\u30f3\u6570\u5b9a\u683c\u3001\u4f5c\u696d\u30af\u30e9\u30b9\u3001\u304a\u3088\u3073\u904b\u8ee2\u74b0\u5883\u4e0b\u306b\u304a\u3051\u308b\u6a5f\u5668\u306e\u5b89\u5168\u4fc2\u6570\u3001\u8010\u7528\u5e74\u6570\u3001\u304a\u3088\u3073\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u30b3\u30b9\u30c8\u3092\u76f4\u63a5\u7684\u306b\u6c7a\u5b9a\u3059\u308b\u3053\u3068\u3092\u6df1\u304f\u8a8d\u8b58\u3057\u3066\u3044\u307e\u3059\u3002 <strong>DGCRANE<\/strong> Q355B\u3001Q460NE\u3001Q690E\u3092\u542b\u3080\u3001\u56fd\u969b\u6a19\u6e96\u92fc\u7a2e\u3092\u5e45\u5e83\u304f\u6b63\u78ba\u306b\u4f9b\u7d66\u3057\u3001\u6975\u5bd2\u3001\u9ad8\u5869\u5206\u5674\u9727\u3001\u9023\u7d9a\u91cd\u8ca0\u8377\u904b\u8ee2\u306a\u3069\u3001\u304a\u5ba2\u69d8\u306e\u5b9f\u969b\u306e\u4f5c\u696d\u6761\u4ef6\u306b\u5408\u308f\u305b\u3066\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u3053\u3068\u3067\u3001\u5f93\u6765\u578b\u304a\u3088\u3073\u7279\u6b8a\u306a\u30b7\u30ca\u30ea\u30aa\u306e\u4e21\u65b9\u306b\u304a\u3051\u308b\u6750\u6599\u9700\u8981\u3092\u5b8c\u5168\u306b\u6e80\u305f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>DGCRANE<\/strong> \u5f53\u793e\u306f\u3001\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3055\u308c\u305f\u6750\u6599\u30b3\u30f3\u30b5\u30eb\u30c6\u30a3\u30f3\u30b0\u3001\u7279\u6ce8\u5207\u65ad\u3001\u6eb6\u63a5\u3001\u9632\u9306\u524d\u51e6\u7406\u3001\u5b8c\u5168\u306a\u54c1\u8cea\u30c8\u30ec\u30fc\u30b5\u30d3\u30ea\u30c6\u30a3\u3001\u30a2\u30d5\u30bf\u30fc\u30b5\u30fc\u30d3\u30b9\u4fdd\u8a3c\u30b5\u30dd\u30fc\u30c8\u307e\u3067\u3001\u30ef\u30f3\u30b9\u30c8\u30c3\u30d7\u306e\u30d5\u30eb\u30d7\u30ed\u30bb\u30b9\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u8abf\u9054\u6bb5\u968e\u304b\u3089\u30ea\u30b9\u30af\u3092\u56de\u907f\u3057\u3001\u3088\u308a\u5b89\u5168\u306a\u30af\u30ec\u30fc\u30f3\u64cd\u4f5c\u3001\u3088\u308a\u8010\u4e45\u6027\u306e\u9ad8\u3044\u69cb\u9020\u7269\u3001\u305d\u3057\u3066\u3088\u308a\u512a\u308c\u305f\u30b3\u30b9\u30c8\u7ba1\u7406\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u8981\u306a\u8377\u91cd\u652f\u6301\u69cb\u9020\u3067\u3042\u308b\u4e3b\u6841\u306f\u3001\u305d\u306e\u91cd\u91cf\u306e\u304b\u306a\u308a\u306e\u90e8\u5206\u3092\u5360\u3081\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u6841\u306f\u30af\u30ec\u30fc\u30f3\u7dcf\u91cd\u91cf\u306e401\u30c8\u30f3\uff5e601\u30c8\u30f3\u3092\u5360\u3081\u3001\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u6841\u306f301\u30c8\u30f3\u3092\u8d85\u3048\u307e\u3059\u3002\u4e3b\u6841\u306e\u92fc\u6750\u306f\u3001\u30af\u30ec\u30fc\u30f3\u5168\u4f53\u306e\u8010\u8377\u91cd\u80fd\u529b\u3001\u904b\u7528\u5b89\u5168\u6027\u3001\u304a\u3088\u3073\u7dcf\u5408\u30b3\u30b9\u30c8\u3092\u76f4\u63a5\u7684\u306b\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u4e2d\u56fd\u91cd\u6a5f\u68b0\u5de5\u696d\u5354\u4f1a\u306e\u30c7\u30fc\u30bf\u306b\u3088\u308b\u3068\u3001651\u30c8\u30f3\u3092\u8d85\u3048\u308b\u69cb\u9020\u7684\u6545\u969c\u306f\u3001\u4e3b\u6841\u306e\u92fc\u6750\u3068\u904b\u7528\u6761\u4ef6\u306e\u4e0d\u4e00\u81f4\u306b\u8d77\u56e0\u3057\u3066\u3044\u307e\u3059\u3002\u6a5f\u5668\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3057\u3001\u9078\u5b9a\u30d7\u30ed\u30bb\u30b9\u5168\u4f53\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u5929\u4e95\u30af\u30ec\u30fc\u30f3\u3068\u30ac\u30f3\u30c8\u30ea\u30fc\u30af\u30ec\u30fc\u30f3\u306e\u4e3b\u8981\u306a\u92fc\u6750\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u6bd4\u8f03\u8868\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002[\u2026]","protected":false},"featured_media":16939,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[351],"posts_tag":[206,54,6],"class_list":["post-16938","posts","type-posts","status-publish","has-post-thumbnail","hentry","posts_category-blog","posts_tag-dgcrane","posts_tag-gantry-crane","posts_tag-overhead-crane"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dgcrane.com\/ja\/wp-json\/wp\/v2\/xmxposts\/16938"}],"collection":[{"href":"https:\/\/www.dgcrane.com\/ja\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.dgcrane.com\/ja\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":10,"href":"https:\/\/www.dgcrane.com\/ja\/wp-json\/wp\/v2\/xmxposts\/16938\/revisions"}],"predecessor-version":[{"id":16959,"href":"https:\/\/www.dgcrane.com\/ja\/wp-json\/wp\/v2\/xmxposts\/16938\/revisions\/16959"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/ja\/wp-json\/wp\/v2\/media\/16939"}],"wp:attachment":[{"href":"https:\/\/www.dgcrane.com\/ja\/wp-json\/wp\/v2\/media?parent=16938"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.dgcrane.com\/ja\/wp-json\/wp\/v2\/posts_category?post=16938"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.dgcrane.com\/ja\/wp-json\/wp\/v2\/posts_tag?post=16938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}