{"id":20106,"date":"2024-12-27T03:19:00","date_gmt":"2024-12-26T19:19:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=20106"},"modified":"2024-12-30T11:36:03","modified_gmt":"2024-12-30T03:36:03","slug":"l2","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/ja\/tool-steel\/grades\/l2\/","title":{"rendered":"L2 \u4f4e\u5408\u91d1\u7279\u6b8a\u5de5\u5177\u92fc | T61202 | 1.2235"},"content":{"rendered":"<p class=\"wp-block-paragraph\">SteelPro Group \u306f\u3001\u30d7\u30ec\u30fc\u30c8\u3001\u30d0\u30fc\u3001\u30ed\u30c3\u30c9\u306a\u3069\u3055\u307e\u3056\u307e\u306a\u5f62\u72b6\u306e L2 \u5de5\u5177\u92fc\u3092\u63d0\u4f9b\u3059\u308b\u4fe1\u983c\u3067\u304d\u308b\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u3067\u3059\u3002\u9244\u92fc\u696d\u754c\u3067\u306e\u8c4a\u5bcc\u306a\u7d4c\u9a13\u3092\u6d3b\u304b\u3057\u3001\u304a\u5ba2\u69d8\u306e\u7279\u5b9a\u306e\u30cb\u30fc\u30ba\u3092\u6e80\u305f\u3059\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3055\u308c\u305f\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u3001\u9ad8\u54c1\u8cea\u306e\u6750\u6599\u3068\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u7d0d\u54c1\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002&nbsp;<\/p><h2 class=\"wp-block-heading\">L2 \u5de5\u5177\u92fc\u3068\u306f\u4f55\u3067\u3059\u304b?<\/h2><p class=\"wp-block-paragraph\">L2 \u92fc\u306f\u6cb9\u713c\u5165\u308c\u5de5\u5177\u92fc\u3067\u3001\u4e2d\u70ad\u7d20\u92fc (0.45%-0.65%) \u3068\u9ad8\u70ad\u7d20\u92fc (0.65%-1.10%) \u304c\u3042\u308a\u307e\u3059\u3002\u30af\u30ed\u30e0\u3068\u30d0\u30ca\u30b8\u30a6\u30e0\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u5f37\u5ea6\u3001\u8010\u6469\u8017\u6027\u3001\u512a\u308c\u305f\u713c\u5165\u308c\u6027\u3067\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002L2 \u92fc\u306f\u3001\u30d1\u30f3\u30c1\u3001\u30c0\u30a4\u3001\u30b9\u30d4\u30f3\u30c9\u30eb\u3001\u51b7\u9593\u5727\u9020\u30c0\u30a4\u306a\u3069\u306e\u5de5\u5177\u306b\u3088\u304f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p><h2 class=\"wp-block-heading\">L2 \u92fc\u306b\u76f8\u5f53\u3059\u308b\u3082\u306e\u306f\u4f55\u3067\u3059\u304b?<\/h2><p class=\"wp-block-paragraph\">L2 \u5de5\u5177\u92fc\u306b\u306f\u3001\u4ee5\u4e0b\u3092\u542b\u3080\u3055\u307e\u3056\u307e\u306a\u56fd\u969b\u898f\u683c\u3067\u540c\u7b49\u306e\u30b0\u30ec\u30fc\u30c9\u304c\u3042\u308a\u307e\u3059\u3002<\/p><ul class=\"wp-block-list\"><li><strong>\u56fd\u9023T61202<\/strong> \uff08\u30a2\u30e1\u30ea\u30ab\uff09<\/li>\n\n<li><strong>JIS G4404 SKT3<\/strong> \uff08\u65e5\u672c\uff09<\/li>\n\n<li><strong>1.2210 \u898f\u683c<\/strong> \uff08\u30c9\u30a4\u30c4\uff09<\/li><\/ul><h2 class=\"wp-block-heading\">L2 \u5de5\u5177\u92fc\u88fd\u54c1\u306e\u5f62\u72b6\u3068\u4f9b\u7d66\u7bc4\u56f2<\/h2><p class=\"wp-block-paragraph\">\u5f53\u793e\u3067\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30b5\u30a4\u30ba\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u5099\u3048\u305f\u30d7\u30ec\u30fc\u30c8\u3001\u30d0\u30fc\u3001\u30ed\u30c3\u30c9\u306a\u3069\u306e\u6a19\u6e96\u5f62\u72b6\u306e L2 \u5de5\u5177\u92fc\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306b\u52a0\u3048\u3066\u3001\u7279\u5b9a\u306e\u30b5\u30a4\u30ba\u3084\u5f62\u72b6\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3059\u30ab\u30b9\u30bf\u30e0 \u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3082\u63d0\u4f9b\u3057\u3066\u304a\u308a\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5fc5\u8981\u306a\u3082\u306e\u3092\u78ba\u5b9f\u306b\u624b\u306b\u5165\u308c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u88fd\u54c1\u5f62\u614b<\/strong><\/td><td><strong>\u30b5\u30a4\u30ba\u7bc4\u56f2\uff08\u30e1\u30fc\u30c8\u30eb\u6cd5\uff09<\/strong><\/td><td><strong>\u30b5\u30a4\u30ba\u7bc4\u56f2\uff08\u30e4\u30fc\u30c9\u30dd\u30f3\u30c9\u6cd5\uff09<\/strong><\/td><\/tr><tr><td>\u4e38\u68d2<\/td><td>\u76f4\u5f84: 10 mm\uff5e300 mm<\/td><td>\u76f4\u5f84: 0.39\u30a4\u30f3\u30c1\uff5e11.81\u30a4\u30f3\u30c1<\/td><\/tr><tr><td>\u30b9\u30af\u30a8\u30a2\u30d0\u30fc<\/td><td>\u8fba\u306e\u9577\u3055: 10 mm \uff5e 200 mm<\/td><td>\u8fba\u306e\u9577\u3055: 0.39\u30a4\u30f3\u30c1\uff5e7.87\u30a4\u30f3\u30c1<\/td><\/tr><tr><td rowspan=\"2\">\u30d5\u30e9\u30c3\u30c8\u30d0\u30fc<\/td><td>\u539a\u3055: 5mm\uff5e100mm<\/td><td>\u539a\u3055: 0.20\u30a4\u30f3\u30c1\uff5e3.94\u30a4\u30f3\u30c1<\/td><\/tr><tr><td>\u5e45: 20 mm\uff5e300 mm<\/td><td>\u5e45: 0.79\u30a4\u30f3\u30c1\uff5e11.81\u30a4\u30f3\u30c1<\/td><\/tr><tr><td rowspan=\"3\">\u30d7\u30ec\u30fc\u30c8<\/td><td>\u539a\u3055: 10 mm\uff5e100 mm<\/td><td>\u539a\u3055: 0.39\u30a4\u30f3\u30c1\uff5e3.94\u30a4\u30f3\u30c1<\/td><\/tr><tr><td>\u5e45: 150 mm\uff5e3000 mm<\/td><td>\u5e45: 5.91\u30a4\u30f3\u30c1\uff5e118.11\u30a4\u30f3\u30c1<\/td><\/tr><tr><td>\u9577\u3055: 500 mm\uff5e6000 mm<\/td><td>\u9577\u3055: 19.69\u30a4\u30f3\u30c1\uff5e236.22\u30a4\u30f3\u30c1<\/td><\/tr><tr><td rowspan=\"3\">\u30b7\u30fc\u30c4<\/td><td>\u539a\u3055: 1mm\uff5e6mm<\/td><td>\u539a\u3055: 0.04\u30a4\u30f3\u30c1\uff5e0.24\u30a4\u30f3\u30c1<\/td><\/tr><tr><td>\u5e45: 200 mm\uff5e1500 mm<\/td><td>\u5e45: 7.87\u30a4\u30f3\u30c1\uff5e59.06\u30a4\u30f3\u30c1<\/td><\/tr><tr><td>\u9577\u3055: 500 mm\uff5e3000 mm<\/td><td>\u9577\u3055: 19.69\u30a4\u30f3\u30c1\uff5e118.11\u30a4\u30f3\u30c1<\/td><\/tr><tr><td>\u30c4\u30fc\u30ea\u30f3\u30b0\u30e9\u30a6\u30f3\u30c9<\/td><td>\u76f4\u5f84: 10 mm\uff5e150 mm<\/td><td>\u76f4\u5f84: 0.39\u30a4\u30f3\u30c1\uff5e5.91\u30a4\u30f3\u30c1<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">L2\u5de5\u5177\u92fc\u306e\u5316\u5b66\u7d44\u6210<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u30a8\u30ec\u30e1\u30f3\u30c8<\/strong><\/td><td><strong>\u69cb\u6210<\/strong><\/td><\/tr><tr><td>\u30ab\u30fc\u30dc\u30f3\uff08C\uff09<\/td><td>0.45 &#8211; 1.10%<\/td><\/tr><tr><td>\u30b1\u30a4\u7d20 (Si)<\/td><td>0.1 &#8211; 0.5%<\/td><\/tr><tr><td>\u30de\u30f3\u30ac\u30f3 (Mn)<\/td><td>0.1 &#8211; 0.9%<\/td><\/tr><tr><td>\u30ea\u30f3 (P)<\/td><td>\u2264 0.03%<\/td><\/tr><tr><td>\u786b\u9ec4\uff08S\uff09<\/td><td>\u2264 0.03%<\/td><\/tr><tr><td>\u30af\u30ed\u30e0\uff08Cr\uff09<\/td><td>0.7 &#8211; 1.2%<\/td><\/tr><tr><td>\u30e2\u30ea\u30d6\u30c7\u30f3 (Mo)<\/td><td>\u2264 0.25%<\/td><\/tr><tr><td>\u30d0\u30ca\u30b8\u30a6\u30e0 (V)<\/td><td>0.1 &#8211; 0.3%<\/td><\/tr><tr><td>\u30cb\u30c3\u30b1\u30eb + \u9285 (Ni + Cu)<\/td><td>\u2264 0.75%<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">L2\u5de5\u5177\u92fc\u306e\u7269\u7406\u7684\u7279\u6027<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong><\/td><td><strong>\u30e1\u30c8\u30ea\u30c3\u30af\u5024<\/strong><\/td><td><strong>\u30a4\u30f3\u30da\u30ea\u30a2\u30eb\u30fb\u30d0\u30ea\u30e5\u30fc<\/strong><\/td><\/tr><tr><td>\u5bc6\u5ea6<\/td><td>7.85 g\/cm\u00b3<\/td><td>0.284 lb\/in\u00b3<\/td><\/tr><tr><td>\u71b1\u81a8\u5f35\u4fc2\u6570<\/td><td>11.3 \u00b5m\/m\u00b7K<\/td><td>6.28 \u00b5in\/in-\u00b0F<\/td><\/tr><tr><td>\u71b1\u4f1d\u5c0e\u7387<\/td><td>26.5W\/m\u00b7K<\/td><td>18.3 BTU\/\u6642\u00b7\u30d5\u30a3\u30fc\u30c8\u00b7\u00b0F<\/td><\/tr><tr><td>\u6bd4\u71b1<\/td><td>0.46 J\/g-K<\/td><td>0.11 BTU\/lb-\u00b0F<\/td><\/tr><tr><td>\u878d\u70b9<\/td><td>1425 - 1470\u00b0C<\/td><td>2600\uff5e2678\u00b0F<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">L2\u5de5\u5177\u92fc\u306e\u6a5f\u68b0\u7684\u7279\u6027<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong><\/td><td><strong>\u30e1\u30c8\u30ea\u30c3\u30af\u5024<\/strong><\/td><td><strong>\u30a4\u30f3\u30da\u30ea\u30a2\u30eb\u30fb\u30d0\u30ea\u30e5\u30fc<\/strong><\/td><\/tr><tr><td>\u786c\u5ea6\uff08HRC\uff09<\/td><td>30 &#8211; 54<\/td><td>30 &#8211; 54<\/td><\/tr><tr><td>\u5f15\u5f35\u5f37\u3055\u3001\u6975\u9650<\/td><td>710 \u2013 2000 MPa<\/td><td>103,000 \u2013 290,000 psi<\/td><\/tr><tr><td>\u5f15\u5f35\u5f37\u5ea6\u3001\u964d\u4f0f\u5f37\u5ea6<\/td><td>510 \u2013 1790 MPa @ \u3072\u305a\u307f 0.2%<\/td><td>74,000 \u2013 260,000 psi @ \u3072\u305a\u307f 0.2%<\/td><\/tr><tr><td>\u7834\u65ad\u4f38\u5ea6<\/td><td>5.0 &#8211; 25 %<\/td><td>5.0 &#8211; 25 %<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">L2\u5de5\u5177\u92fc\u71b1\u51e6\u7406<\/h2><p class=\"wp-block-paragraph\">SteelPRO \u3067\u306f\u3001\u713c\u304d\u306a\u307e\u3057\u72b6\u614b\u3068\u4e8b\u524d\u786c\u5316\u72b6\u614b\u306e\u4e21\u65b9\u3067 L2 \u5de5\u5177\u92fc\u3092\u63d0\u4f9b\u3057\u3066\u304a\u308a\u3001\u304a\u5ba2\u69d8\u306e\u7279\u5b9a\u306e\u30cb\u30fc\u30ba\u306b\u5fdc\u3058\u305f\u67d4\u8edf\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002&nbsp;<\/p><h3 class=\"wp-block-heading\">\u4e88\u71b1<\/h3><p class=\"wp-block-paragraph\">\u305d\u306e\u5f8c\u306e\u52a0\u71b1\u6bb5\u968e\u3067\u306e\u71b1\u885d\u6483\u3092\u9632\u3050\u305f\u3081\u306b\u3001L2 \u5de5\u5177\u92fc\u3092\u5f90\u3005\u306b 649\u00b0C (1200\u00b0F) \u307e\u3067\u52a0\u71b1\u3057\u307e\u3059\u3002<\/p><h3 class=\"wp-block-heading\">\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u5316<\/h3><p class=\"wp-block-paragraph\">\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u5316\u306e\u305f\u3081\u306b\u92fc\u306e\u6e29\u5ea6\u3092 857\u00b0C (1575\u00b0F) \u307e\u3067\u4e0a\u3052\u307e\u3059\u3002\u6750\u6599\u306e\u539a\u3055\u306b\u5fdc\u3058\u3066\u3053\u306e\u6e29\u5ea6\u3092 5 \uff5e 15 \u5206\u9593\u7dad\u6301\u3057\u3001\u713c\u5165\u308c\u524d\u306b\u92fc\u304c\u5747\u4e00\u306a\u69cb\u9020\u306b\u306a\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p><h3 class=\"wp-block-heading\">\u713c\u304d\u5165\u308c<\/h3><p class=\"wp-block-paragraph\">\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u5316\u5f8c\u3001\u92fc\u3092\u6cb9\u3067\u51b7\u5374\u3057\u307e\u3059\u3002\u6cb9\u304c\u9078\u629e\u3055\u308c\u308b\u7406\u7531\u306f\u3001\u51b7\u5374\u901f\u5ea6\u3092\u5236\u5fa1\u3057\u3001\u5272\u308c\u306e\u30ea\u30b9\u30af\u3092\u6e1b\u3089\u3057\u306a\u304c\u3089\u3001\u5fc5\u8981\u306a\u786c\u5ea6\u3092\u78ba\u5b9f\u306b\u9054\u6210\u3067\u304d\u308b\u305f\u3081\u3067\u3059\u3002<\/p><h3 class=\"wp-block-heading\">\u713c\u304d\u623b\u3057<\/h3><p class=\"wp-block-paragraph\">\u92fc\u3092 204\u00b0C (400\u00b0F) \u3067 1 \u6642\u9593\u713c\u304d\u623b\u3057\u307e\u3059\u3002\u3053\u306e\u624b\u9806\u306b\u3088\u308a\u3001\u713c\u304d\u5165\u308c\u30d7\u30ed\u30bb\u30b9\u306b\u3088\u308b\u5185\u90e8\u5fdc\u529b\u306e\u4e00\u90e8\u304c\u6d88\u6563\u3057\u3001\u8106\u3055\u304c\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002\u713c\u304d\u623b\u3057\u5f8c\u306e\u786c\u5ea6\u306f\u304a\u3088\u305d RC 53 \u306b\u306a\u308a\u307e\u3059\u3002<\/p><h2 class=\"wp-block-heading\">L2\u5de5\u5177\u92fc\u306e\u7528\u9014<\/h2><ul class=\"wp-block-list\"><li>\u51b7\u9593\u935b\u9020\u304a\u3088\u3073\u6e29\u9593\u935b\u9020\u91d1\u578b<\/li>\n\n<li>\u30d6\u30e9\u30f3\u30ad\u30f3\u30b0\u30d1\u30f3\u30c1\u3068\u305b\u3093\u65ad\u30c0\u30a4<\/li>\n\n<li>\u51b7\u9593\u5727\u5ef6\u30ed\u30fc\u30e9\u30fc<\/li>\n\n<li>\u30a8\u30f3\u30c9\u30df\u30eb<\/li>\n\n<li>\u30c9\u30ea\u30eb\u30d3\u30c3\u30c8<\/li>\n\n<li>\u5c04\u51fa\u6210\u5f62\u91d1\u578b<\/li>\n\n<li>\u6a5f\u68b0\u52a0\u5de5\u7528\u6cbb\u5177<\/li>\n\n<li>\u30ce\u30df\u3068\u5203\u5148<\/li><\/ul><h2 class=\"wp-block-heading\">\u30d7\u30ec\u30df\u30a2\u30e0L2\u5de5\u5177\u92fc\u3067\u7cbe\u5ea6\u3092\u89e3\u304d\u653e\u3064<\/h2><p class=\"wp-block-paragraph\">SteelPro Group\u3067\u306fL2\u5de5\u5177\u92fc\u3092\u5c02\u9580\u306b\u6271\u3063\u3066\u304a\u308a\u3001\u304a\u5ba2\u69d8\u306e\u7279\u5b9a\u306e\u30cb\u30fc\u30ba\u3092\u6e80\u305f\u3059\u305f\u3081\u306b\u5e45\u5e83\u3044\u30b5\u30a4\u30ba\u3068\u5f62\u72b6\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002L2\u306b\u52a0\u3048\u3066\u3001 <a href=\"https:\/\/steelprogroup.com\/ja\/tool-steel\/cr12mov\/\">D2\u5de5\u5177\u92fc\u677f\u3001\u68d2\u92fc\u306a\u3069<\/a>.&nbsp;<\/p><p class=\"wp-block-paragraph\">\u5f53\u793e\u306e\u30b5\u30fc\u30d3\u30b9\u306b\u306f\u3001\u7cbe\u5bc6\u5207\u65ad\u3001\u66f2\u3052\u3001\u6a5f\u68b0\u52a0\u5de5\u3001\u6eb6\u63a5\u3001\u88fd\u9020\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u304a\u5ba2\u69d8\u304c\u5fc5\u8981\u3068\u3059\u308b\u3042\u3089\u3086\u308b\u30ab\u30b9\u30bf\u30e0 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