{"id":10044,"date":"2026-05-06T11:25:03","date_gmt":"2026-05-06T11:25:03","guid":{"rendered":"https:\/\/weldomachining.com\/?p=10044"},"modified":"2026-05-07T05:35:50","modified_gmt":"2026-05-07T05:35:50","slug":"aisi-4140-material","status":"publish","type":"post","link":"https:\/\/weldomachining.com\/ja\/aisi-4140-material\/","title":{"rendered":"AISI 4140\u6750\u6599\u306e\u5b8c\u5168\u5206\u6790"},"content":{"rendered":"<p>AISI 4140\u306f\u30a2\u30e1\u30ea\u30ab\u898f\u683c\u306e\u30af\u30ed\u30e0\u30e2\u30ea\u30d6\u30c7\u30f3\u30b9\u30c1\u30fc\u30eb\u3067\u3059\u3002\u4e2d\u56fd\u3067\u306f42CrMo\u3001\u30c9\u30a4\u30c4\u3067\u306f42CrMo4\u3001\u65e5\u672c\u3067\u306fSCM440\u5408\u91d1\u92fc\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002\u9ad8\u5f37\u5ea6\u3001\u9ad8\u976d\u6027\u3001\u826f\u597d\u306a\u713c\u5165\u6027\u3092\u7279\u5fb4\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u9069\u5ea6\u306a\u70ad\u7d20\u542b\u6709\u91cf\u3068\u8c4a\u5bcc\u306a\u5408\u91d1\u5143\u7d20\u306b\u3088\u308a\u3001\u71b1\u51e6\u7406\u306b\u3088\u3063\u3066\u3088\u308a\u9ad8\u786c\u5ea6\u306e\u30de\u30eb\u30c6\u30f3\u30b5\u30a4\u30c8\u5408\u91d1\u92fc\u306b\u52a0\u5de5\u3055\u308c\u308b\u3053\u3068\u3082\u4e00\u822c\u7684\u3067\u3059\u30024140\u30af\u30ed\u30e0\u30e2\u30ea\u92fc\u306f\u3001\u91cd\u8ca0\u8377\u3092\u4f34\u3046\u90e8\u54c1\u306e\u7528\u9014\u8981\u4ef6\u3092\u5bb9\u6613\u306b\u6e80\u305f\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001AISI 4140\u92fc\u306e\u7279\u6027\u3068\u52a0\u5de5\u30d7\u30ed\u30bb\u30b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"481\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/4010-steel-bar-material.webp\" alt=\"AISI 4010\u92fc\u68d2\u6750\u6599\" class=\"wp-image-10047\" srcset=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/4010-steel-bar-material.webp 600w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/4010-steel-bar-material-300x241.webp 300w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/4010-steel-bar-material-15x12.webp 15w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption class=\"wp-element-caption\">AISI 4010\u92fc\u68d2\u6750\u6599<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">AISI 4140\u92fc\u306e\u7279\u6027<\/h2>\n\n\n\n<p>\u3053\u306e\u6750\u6599\u3092\u3088\u308a\u79d1\u5b66\u7684\u306b\u7d39\u4ecb\u3059\u308b\u305f\u3081\u306b\u3001\u91d1\u5c5e\u306e\u6027\u8cea\u306b\u57fa\u3065\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u4e3b\u306b\u6a5f\u68b0\u7684\u6027\u8cea\u3001\u7269\u7406\u7684\u6027\u8cea\u3001\u5316\u5b66\u7684\u6027\u8cea\u3001\u8010\u98df\u6027\u3001\u52a0\u5de5\u30d7\u30ed\u30bb\u30b9\u3092\u542b\u307f\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">AISI 4140\u306e\u5316\u5b66\u7d44\u6210<\/h3>\n\n\n\n<p>AISI 4140\u306f\u4f4e\u5408\u91d14140\u30af\u30ed\u30e2\u30ea\u30fc\u30b9\u30c1\u30fc\u30eb\u3068\u3082\u547c\u3070\u308c\u307e\u3059\u3002\u305d\u306e\u5316\u5b66\u5143\u7d20\u306f\u4e3b\u306b\u6b21\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<p>\u70ad\u7d20\uff08<strong>C<\/strong>\uff09\uff1a\u542b\u6709\u91cf0.38%-0.43%\u3001\u4e2d\u70ad\u7d20\u92fc\u306b\u5c5e\u3057\u30014140\u70ad\u7d20\u92fc\u304c\u713c\u5165\u308c\u3068\u713c\u304d\u623b\u3057\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u3092\u6c7a\u5b9a\u3059\u308b\u91cd\u8981\u306a\u5143\u7d20\u3067\u3059\u3002.<\/p>\n\n\n\n<p>\u30de\u30f3\u30ac\u30f3\uff08<strong>\u30e0\u30f3<\/strong>\uff09\uff1a\u542b\u6709\u91cf0.75%-1.00%\u3001\u4e3b\u306b\u92fc\u306e\u786c\u5316\u6027\u3092\u5411\u4e0a\u3055\u305b\u3001\u7c92\u5ea6\u3092\u7d30\u304b\u304f\u3057\u3001\u786b\u9ec4\u3068\u7d50\u5408\u3057\u3066MnS\u3092\u5f62\u6210\u3057\u3001\u786b\u9ec4\u306b\u3088\u308b\u9ad8\u6e29\u8106\u6027\u3092\u4f4e\u6e1b\u3057\u3001AISI 4140\u92fc\u306e\u71b1\u9593\u52a0\u5de5\u6027\u80fd\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30af\u30ed\u30e0\uff08<strong>Cr<\/strong>\uff09\uff1a\u542b\u6709\u91cf0.80%-1.10%\u3001\u786c\u5316\u6027\u3001\u8010\u6469\u8017\u6027\u3001\u8010\u9178\u5316\u6027\u3092\u5411\u4e0a\u3055\u305b\u3001\u5b89\u5b9a\u3057\u305f\u70ad\u5316\u7269\u3092\u5f62\u6210\u3057\u3066\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u3092\u5f37\u5316\u3057\u3001\u7279\u306b\u9178\u5316\u74b0\u5883\u3067\u306e\u8010\u98df\u6027\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30e2\u30ea\u30d6\u30c7\u30f3\uff08<strong>Mo<\/strong>\uff09\uff1a\u542b\u6709\u91cf0.15%-0.25%\u3001AISI 4140\u306e\u4e3b\u8981\u306a\u5408\u91d1\u5143\u7d20\u3067\u3042\u308a\u3001\u786c\u5316\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u3001\u713c\u304d\u623b\u3057\u8106\u6027\u3092\u52b9\u679c\u7684\u306b\u6291\u5236\u3057\u3001\u9ad8\u6e29\u3067\u306e\u5f37\u5ea6\u3068\u786c\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u3068\u3068\u3082\u306b\u3001\u8010\u5869\u7d20\u5316\u7269\u8150\u98df\u6027\u3082\u6539\u5584\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30b7\u30ea\u30b3\u30f3\uff08<strong>Si<\/strong>\uff09\uff1a\u542b\u6709\u91cf0.15%-0.35%\u3001\u4e3b\u306b\u8131\u9178\u5264\u3068\u3057\u3066\u4f5c\u7528\u3057\u3001\u5c11\u91cf\u30674140\u92fc\u306e\u5f37\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30ea\u30f3\uff08<strong>P<\/strong>\uff09\u304a\u3088\u3073\u786b\u9ec4\uff08<strong>S<\/strong>): \u30ea\u30f3\u542b\u6709\u91cf \u22640.035%\u3001\u786b\u9ec4\u542b\u6709\u91cf \u22640.040%\u3001\u4e21\u8005\u306f\u4e0d\u7d14\u7269\u5143\u7d20\u3067\u3042\u308a\u3001\u53b3\u683c\u306b\u7ba1\u7406\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30ea\u30f3\u542b\u6709\u91cf\u304c\u904e\u5270\u306b\u306a\u308b\u3068\u3001\u92fc\u306e\u885d\u6483\u97cc\u6027\u3068\u51b7\u9593\u8106\u6027\u9077\u79fb\u6e29\u5ea6\u304c\u4f4e\u4e0b\u3057\u3001\u786b\u9ec4\u542b\u6709\u91cf\u304c\u904e\u5270\u306b\u306a\u308b\u3068\u3001\u71b1\u8106\u6027\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u92fc\u306e\u5ef6\u6027\u3092\u4f4e\u4e0b\u3055\u305b\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u9069\u5207\u306a\u5272\u5408\u306e\u5316\u5b66\u7d44\u6210\u306f\u30014140 CrMo\u92fc\u306b\u512a\u308c\u305f\u7dcf\u5408\u7684\u306a\u7279\u6027\u3092\u3082\u305f\u3089\u3057\u3001\u5f37\u5ea6\u3001\u976d\u6027\u3001\u786c\u5316\u6027\u3001\u8010\u8150\u98df\u6027\u306b\u512a\u308c\u3066\u304a\u308a\u3001\u91cd\u8377\u91cd\u3084\u885d\u6483\u306b\u8010\u3048\u308b\u6a5f\u68b0\u90e8\u54c1\u306e\u88fd\u9020\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">AISI 4140\u306e\u6a5f\u68b0\u7684\u6027\u8cea<\/h3>\n\n\n\n<p>AISI 4140\u306f\u3001\u4e2d\u70ad\u7d20\u30af\u30ed\u30e0\u30e2\u30ea\u30d6\u30c7\u30f3\u5408\u91d1\u69cb\u9020\u7528\u92fc\u3067\u3059\u3002\u713c\u5165\u308c\u3068\u713c\u623b\u3057\u5f8c\u3001 <a href=\"https:\/\/weldomachining.com\/ja\/heat-treatment-guide\/\" data-type=\"post\" data-id=\"10014\">\u71b1\u51e6\u7406<\/a>, \u512a\u308c\u305f\u6a5f\u68b0\u7684\u6027\u8cea\u3092\u6301\u3061\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u713c\u5165\u308c\u713c\u623b\u3057\u72b6\u614b\u306e4140\u92fc\u306e\u6a5f\u68b0\u7684\u6027\u80fd\u6307\u6a19\u3067\u3059\uff1a<\/p>\n\n\n\n<p>4140\u92fc\u306e\u5f15\u5f35\u5f37\u3055\uff1a\u22651080 MPa\u30021080 MPa\u306f\u3001\u9ad8\u6e29\u713c\u623b\u3057\u72b6\u614b\u306b\u304a\u3051\u308b4140\u92fc\u306e\u4ee3\u8868\u7684\u306a\u6975\u9650\u5f15\u5f35\u5f37\u3055\u306e\u5024\u3067\u3059\u3002\u4f4e\u6e29\u713c\u623b\u3057\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u3001\u305d\u306e\u5f15\u5f35\u5f37\u3055\u306f\u3055\u3089\u306b\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>AISI 4140\u306e\u964d\u4f0f\u70b9\uff1a\u2265650\u20131100 MPa\u3002.<\/p>\n\n\n\n<p>AISI 4140\u306e\u4f38\u3073\uff1a\u226512%\u3001\u3053\u308c\u306f\u6750\u6599\u304c\u826f\u597d\u306a\u5851\u6027\u5909\u5f62\u80fd\u529b\u3092\u6301\u3064\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u300125 mm\u306e\u8a66\u9a13\u7247\u306e\u7d50\u679c\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u713c\u5165\u308c\u713c\u623b\u3057\u3055\u308c\u305f4140\u92fc\u306e\u65ad\u9762\u6e1b\u5c11\u7387\uff1a\u226545%\u3001\u3053\u308c\u306f\u7834\u65ad\u524d\u306e\u5851\u6027\u5909\u5f62\u306b\u8010\u3048\u308b\u6750\u6599\u306e\u80fd\u529b\u3092\u53cd\u6620\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>AISI 4140\u306e\u885d\u6483\u976d\u6027\uff1a\u226563 J\uff0820\u00b0C\uff09\u3001\u3053\u308c\u306f\u6750\u6599\u304c\u885d\u6483\u8377\u91cd\u306b\u8010\u3048\u308b\u80fd\u529b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u5177\u4f53\u7684\u306a\u6a5f\u68b0\u7684\u6027\u8cea\u306f\u3001\u71b1\u51e6\u7406\u5de5\u7a0b\u3001\u6750\u6599\u306e\u7d14\u5ea6\u3001\u5468\u56f2\u6e29\u5ea6\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u7570\u306a\u308b\u713c\u5165\u308c\u5a92\u4f53\uff08\u6cb9\u51b7\u5374\u3001\u6c34\u51b7\u5374\uff09\u3084\u713c\u623b\u3057\u6e29\u5ea6\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u6750\u6599\u306e\u5f37\u5ea6\u3001\u976d\u6027\u3001\u786c\u3055\u306e\u30d0\u30e9\u30f3\u30b9\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">AISI 4140\u306e\u7269\u7406\u7684\u6027\u8cea<\/h3>\n\n\n\n<p>\u92fc4140\u306e\u5bc6\u5ea6\u306f\u7d047.85 g\/cm\u00b3\u3067\u3001\u666e\u901a\u306e\u70ad\u7d20\u92fc\u3068\u985e\u4f3c\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u878d\u70b9\u306f\u7d041420-1450\u00b0C\u3067\u3001\u7d44\u6210\u306b\u3088\u308a\u308f\u305a\u304b\u306b\u5909\u52d5\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u71b1\u4f1d\u5c0e\u7387\u306f\u5ba4\u6e29\u3067\u7d0445-50 W\/(m\u00b7K)\u3067\u3042\u308a\u3001\u6e29\u5ea6\u304c\u4e0a\u6607\u3059\u308b\u3068\u4f4e\u4e0b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u6bd4\u71b1\u5bb9\u91cf\u306f\u5ba4\u6e29\u3067\u7d04460 J\/(kg\u00b7K)\u3067\u3042\u308a\u3001\u4e2d\u7a0b\u5ea6\u306e\u71b1\u5438\u53ce\u30fb\u653e\u51fa\u80fd\u529b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u5f3e\u6027\u4fc2\u6570\u306f\u7d04210-215 GPa\u3067\u3042\u308a\u3001\u5f3e\u6027\u5909\u5f62\u6642\u306e\u6750\u6599\u306e\u525b\u6027\u3092\u53cd\u6620\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30dd\u30a2\u30bd\u30f3\u6bd4\u306f\u7d040.28-0.30\u3067\u3042\u308a\u3001\u5fdc\u529b\u4e0b\u3067\u306e\u6a2a\u65b9\u5411\u3072\u305a\u307f\u3068\u7e26\u65b9\u5411\u3072\u305a\u307f\u306e\u6bd4\u7387\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u78c1\u6c17\u7279\u6027\u306b\u95a2\u3057\u3066\u306f\u3001AISI 4140\u5408\u91d1\u92fc\u306f\u5e38\u78c1\u6027\u3067\u3042\u308a\u3001\u78c1\u5316\u53ef\u80fd\u3067\u3042\u308b\u305f\u3081\u3001\u78c1\u6c17\u6a5f\u80fd\u3092\u5fc5\u8981\u3068\u3059\u308b\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u4e0a\u8a18\u306e\u6027\u80fd\u30c7\u30fc\u30bf\u306f\u4e00\u822c\u7684\u306a\u5024\u3067\u3042\u308a\u3001\u5b9f\u969b\u306e\u5024\u306f\u7279\u5b9a\u306e\u751f\u7523\u5de5\u7a0b\u3001\u71b1\u51e6\u7406\u30d1\u30e9\u30e1\u30fc\u30bf\u3001\u6750\u6599\u306e\u30d0\u30c3\u30c1\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u3059\u3079\u304d\u3067\u3042\u308b\u3002.<\/p>\n\n\n\n<p><strong>4140\u92fc\u306e\u786c\u3055<\/strong>:<\/p>\n\n\n\n<p>\u713c\u920d\u72b6\u614b\uff1a\u2264217 HB<\/p>\n\n\n\n<p>\u713c\u5165\u308c\u3068\u713c\u304d\u306a\u307e\u3057\u72b6\u614b\uff1a22-35 HRC\uff08\u713c\u304d\u306a\u307e\u3057\u6e29\u5ea6\u306b\u4f9d\u5b58\uff09<\/p>\n\n\n\n<p>\u713c\u5165\u308c\u3068\u713c\u304d\u306a\u307e\u3057\u306e\u969b\u306b\u713c\u304d\u306a\u307e\u3057\u6e29\u5ea6\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u30014140\u92fc\u306e\u786c\u3055\u3092\u5909\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u4f8b\u3048\u3070\u3001\u9ad8\u6e29\u713c\u304d\u306a\u307e\u3057\u5f8c\u306f\u786c\u3055\u304c\u4f4e\u4e0b\u3059\u308b\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-3.webp\" alt=\"aisi 4340 \u30af\u30e9\u30f3\u30d7\u30b9\u30af\u30ea\u30e5\u30fc \" class=\"wp-image-10048\" style=\"width:600px\" srcset=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-3.webp 800w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-3-300x300.webp 300w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-3-150x150.webp 150w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-3-768x768.webp 768w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-3-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">4140\u92fc\u306e\u8010\u98df\u6027<\/h3>\n\n\n\n<p>4140\u92fc\u306e\u8010\u98df\u6027\u306b\u306f\u4ee5\u4e0b\u306e\u7279\u5fb4\u304c\u3042\u308b\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u57fa\u672c\u7684\u306a\u8010\u98df\u6027<\/h4>\n\n\n\n<p>AISI 4140\u306f\u30af\u30ed\u30e0-\u30e2\u30ea\u30d6\u30c7\u30f3\u5408\u91d1\u6750\u6599\u3067\u3042\u308a\u3001\u30af\u30ed\u30e0\u6210\u5206\uff08\u542b\u6709\u91cf0.8%-1.1%\uff09\u306f\u92fc\u8868\u9762\u306b\u5bc6\u306a\u30af\u30ed\u30e0\u9178\u5316\u76ae\u819c\u3092\u5f62\u6210\u3057\u3001\u4e00\u822c\u7684\u306a\u5f31\u9178\u3084\u30a2\u30eb\u30ab\u30ea\u74b0\u5883\u3067\u4e00\u5b9a\u306e\u8010\u98df\u6027\u3092\u63d0\u4f9b\u3059\u308b\u3002.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7279\u5b9a\u306e\u5a92\u4f53\u306b\u5bfe\u3059\u308b\u8010\u6027<\/h4>\n\n\n\n<p>\u5869\u5316\u7269\u30a4\u30aa\u30f3\u3092\u5c11\u91cf\u542b\u3080\u74b0\u5883\uff08\u666e\u901a\u306e\u6d77\u6c34\u3084\u6e7f\u3063\u305f\u5869\u6c34\u5674\u9727\u74b0\u5883\u306a\u3069\uff09\u3067\u306f\u30014140 CrMo\u92fc\u306e\u8010\u98df\u6027\u306f\u6bd4\u8f03\u7684\u9650\u5b9a\u7684\u3067\u3042\u308a\u3001\u9577\u671f\u66dd\u9732\u5f8c\u306b\u308f\u305a\u304b\u306a\u9306\u3073\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u304c\u3001\u901a\u5e38\u306f\u8150\u98df\u306b\u3088\u308b\u6025\u6fc0\u306a\u52a3\u5316\u306f\u8d77\u3053\u3089\u306a\u3044\u3002.<\/p>\n\n\n\n<p>\u5f37\u9178\u6027\u3001\u5f37\u30a2\u30eb\u30ab\u30ea\u6027\u3001\u307e\u305f\u306f\u9ad8\u6fc3\u5ea6\u306e\u5869\u5316\u7269\u30a4\u30aa\u30f3\u74b0\u5883\uff08\u6fc3\u5869\u9178\u3001\u6fc3\u786b\u9178\u3001\u9ad8\u5869\u5206\u306e\u6d77\u6c34\u306a\u3069\uff09\u3067\u306f\u3001\u8010\u98df\u6027\u306f\u8457\u3057\u304f\u4f4e\u4e0b\u3057\u3001\u8ffd\u52a0\u306e\u9632\u9306\u51e6\u7406\uff08\u5857\u88c5\u3001\u30e1\u30c3\u30ad\u3001\u30af\u30ed\u30e0\u30e1\u30c3\u30ad\u3001\u9632\u9306\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u306a\u3069\uff09\u304c\u5fc5\u8981\u3068\u306a\u308b\u3002.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u71b1\u51e6\u7406\u306e\u52b9\u679c<\/h4>\n\n\n\n<p>\u713c\u5165\u308c\u3068\u713c\u304d\u306a\u307e\u3057\u51e6\u7406\uff08\u713c\u5165\u308c\uff0b\u713c\u304d\u306a\u307e\u3057\uff09\u5f8c\u3001AISI 4140\u306e\u5fae\u7d30\u69cb\u9020\u306f\u3088\u308a\u5747\u4e00\u306b\u306a\u308a\u3001\u672a\u51e6\u7406\u72b6\u614b\u3068\u6bd4\u8f03\u3057\u3066\u8010\u98df\u6027\u304c\u76f8\u5bfe\u7684\u306b\u5411\u4e0a\u3059\u308b\u304c\u3001\u305d\u308c\u3067\u3082\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\uff08304\u3084316\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u306a\u3069\uff09\u306b\u306f\u53ca\u3070\u306a\u3044\u3002.<\/p>\n\n\n\n<p>\u6ce8\u610f\uff1aAISI 4140\u6750\u6599\u306e\u92fc\u3092\u5f37\u3044\u8150\u98df\u74b0\u5883\u3067\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u9632\u9306\u8868\u9762\u51e6\u7406\u3084\u6750\u6599\u306e\u6539\u826f\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">AISI 4140\u306e\u4e00\u822c\u7684\u306a\u6a5f\u68b0\u52a0\u5de5\u5de5\u7a0b<\/h3>\n\n\n\n<p>AISI 4140\u306e\u4e3b\u306a\u6a5f\u68b0\u52a0\u5de5\u5de5\u7a0b\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3042\u308b\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. 4140\u92fc\u306e\u935b\u9020\u5de5\u7a0b<\/h4>\n\n\n\n<p>\u935b\u9020\u306f\u81ea\u7531\u935b\u9020\u3068\u30c0\u30a4\u935b\u9020\u306b\u5206\u304b\u308c\u308b\u3002\u81ea\u7531\u935b\u9020\u306f\u4e3b\u306b\u5c11\u91cf\u306eAISI 4140\u6750\u6599\u306e\u52a0\u5de5\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002\u30cf\u30f3\u30de\u30fc\u6253\u3061\u3068\u62bc\u3057\u51fa\u3057\u306f1100-1200\u00b0C\u3067\u884c\u308f\u308c\u3001AISI 4140\u6750\u6599\u306e\u5185\u90e8\u7d50\u6676\u683c\u5b50\u3092\u7d30\u304b\u304f\u3057\u5909\u5f62\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u976d\u6027\u3068\u5f37\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u3002.<\/p>\n\n\n\n<p>\u30c0\u30a4\u935b\u9020\u306f\u52a0\u71b1\u3055\u308c\u305fAISI 4140\u306e\u30d3\u30ec\u30c3\u30c8\u3092\u91d1\u578b\u306b\u5165\u308c\u3001\u91d1\u578b\u306e\u7570\u306a\u308b\u65b9\u5411\u304b\u3089\u5727\u529b\u3092\u52a0\u3048\u3066\u30d3\u30ec\u30c3\u30c8\u306e\u6210\u5f62\u3092\u884c\u3046\u3002.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. 4140\u92fc\u306e\u71b1\u51e6\u7406<\/h4>\n\n\n\n<p>\u713c\u304d\u5165\u308c\u3068\u713c\u304d\u623b\u3057\uff1a\u3053\u308c\u306f4140\u92fc\u306b\u6700\u3082\u4e00\u822c\u7684\u306b\u7528\u3044\u3089\u308c\u308b\u71b1\u51e6\u7406\u65b9\u6cd5\u3067\u3042\u308b\u3002\u6cb9\u713c\u304d\u5165\u308c\u306f830-860\u00b0C\u3067\u884c\u3044\u3001AISI 4140\u306e\u30de\u30eb\u30c6\u30f3\u30b5\u30a4\u30c8\u7d44\u7e54\u3092\u5f97\u308b\u3002\u305d\u306e\u5f8c\u3001500-650\u00b0C\u3067\u9ad8\u6e29\u713c\u304d\u623b\u3057\u3092\u884c\u3044\u3001\u713c\u304d\u623b\u3057\u30de\u30eb\u30c6\u30f3\u30b5\u30a4\u30c8\u307e\u305f\u306f\u713c\u304d\u623b\u3057\u30bd\u30eb\u30d3\u30c8\u306b\u3057\u3066\u9ad8\u3044\u5f37\u5ea6\u3068\u976d\u6027\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u3002.<\/p>\n\n\n\n<p>\u713c\u304d\u306a\u307e\u3057\uff1aAISI 4140\u3092850-880\u00b0C\u306b\u52a0\u71b1\u3057\u3001\u305d\u306e\u5f8c\u7a7a\u51b7\u3059\u308b\u3002\u7c92\u5b50\u3092\u7d30\u304b\u304f\u3057\u3001\u69cb\u9020\u3092\u5747\u4e00\u5316\u3057\u3001\u5185\u90e8\u5fdc\u529b\u3092\u89e3\u653e\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002\u935b\u9020\u3084\u5727\u5ef6\u5f8c\u306b\u3088\u304f\u7528\u3044\u3089\u308c\u308b\u3002\u713c\u304d\u306a\u307e\u3057\u5f8c\u306e4140\u92fc\u306e\u964d\u4f0f\u5f37\u3055\u306f\u304a\u304a\u3088\u305d700-900 MPa\u306e\u7bc4\u56f2\u3067\u3042\u308b\u3002.<\/p>\n\n\n\n<p>\u713c\u304d\u306a\u307e\u3057\uff1a680-720\u00b0C\u306b\u52a0\u71b1\u3057\u3001\u305d\u306e\u5f8c\u7089\u51b7\u3057\u3066AISI 4140\u306e\u786c\u3055\u3092\u4f4e\u6e1b\u3057\u3001\u52a0\u5de5\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3002\u5f8c\u5de5\u7a0b\u3092\u5fc5\u8981\u3068\u3059\u308b\u90e8\u54c1\u306b\u9069\u3057\u3066\u3044\u308b\u3002 <a href=\"https:\/\/weldomachining.com\/ja\/%e3%82%b5%e3%83%bc%e3%83%93%e3%82%b9\/cnc%e3%83%95%e3%83%a9%e3%82%a4%e3%82%b9%e5%8a%a0%e5%b7%a5\/\" data-type=\"page\" data-id=\"41\">CNC\u30d5\u30e9\u30a4\u30b9\u52a0\u5de5<\/a>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3. \u6a5f\u68b0\u52a0\u5de5<\/h4>\n\n\n\n<p>\u65cb\u76e4\u52a0\u5de5\u3001\u30d5\u30e9\u30a4\u30b9\u52a0\u5de5\u3001\u30c9\u30ea\u30eb\u52a0\u5de5\u3001\u30bf\u30c3\u30d7\u52a0\u5de5\u306a\u3069\uff1a\u3053\u308c\u3089\u306f\u4e00\u822c\u7684\u306b4140\u5408\u91d1\u92fc\u306e\u713c\u304d\u5165\u308c\u3084\u713c\u304d\u623b\u3057\u3001\u307e\u305f\u306f\u713c\u304d\u306a\u307e\u3057\u5f8c\u306b\u884c\u308f\u308c\u308b\u3002AISI 4140\u92fc\u306e\u6a5f\u68b0\u52a0\u5de5\u306b\u4f7f\u7528\u3055\u308c\u308b\u5207\u524a\u5de5\u5177\u306f\u3001\u4e00\u822c\u7684\u306b\u30ab\u30fc\u30d0\u30a4\u30c9\u5de5\u5177\u307e\u305f\u306fCBN\/\u30bb\u30e9\u30df\u30c3\u30af\u5de5\u5177\u3067\u3042\u308b\u3002\u4e3b\u8ef8\u56de\u8ee2\u901f\u5ea6\u306f\u30014140\u306e\u71b1\u51e6\u7406\u72b6\u614b\u306b\u5fdc\u3058\u3066\u8a2d\u5b9a\u3055\u308c\u308b\u3002\u4ee5\u4e0b\u306e\u52a0\u5de5\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u3001\u5f53\u793e\u306e\u30a6\u30a7\u30eb\u30c9\u306e\u56db\u8ef8\u30de\u30b7\u30f3\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u306e\u7d4c\u9a13\u306b\u57fa\u3065\u3044\u3066\u307e\u3068\u3081\u3089\u308c\u3066\u3044\u308b\uff1a<\/p>\n\n\n\n<p>\u713c\u304d\u306a\u307e\u3057\u3055\u308c\u305f4140\u5408\u91d1\u92fc\u306e\u786c\u3055\u306f\u6bd4\u8f03\u7684\u4f4e\u304f\u3001\u4e3b\u8ef8\u56de\u8ee2\u901f\u5ea6\u7bc4\u56f2\u306f\u4e00\u822c\u7684\u306b150-200 m\/min\u3067\u3042\u308b\u3002;<\/p>\n\n\n\n<p>\u713c\u304d\u5165\u308c\u3068\u713c\u304d\u623b\u3057\u3055\u308c\u305f\u5408\u91d14140\u92fc\u306e\u786c\u3055\u306f\u4e2d\u7a0b\u5ea6\u3067\u3001\u901f\u5ea6\u7bc4\u56f2\u306f100-150 m\/min\u3067\u3042\u308b\u3002;<\/p>\n\n\n\n<p>\u713c\u304d\u5165\u308c\u3055\u308c\u305fAISI 4140\u92fc\u306e\u786c\u3055\u306f\u6bd4\u8f03\u7684\u9ad8\u304f\u3001\u5de5\u5177\u306e\u901f\u5ea6\u7bc4\u56f2\u306f80-120 m\/min\u3067\u3042\u308b\u3002;<\/p>\n\n\n\n<p>\u5de5\u5177\u9001\u308a\u306f0.04-0.2\u306b\u8a2d\u5b9a\u3055\u308c\u3001\u632f\u52d5\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u5de5\u5177\u306e\u30aa\u30fc\u30d0\u30fc\u30cf\u30f3\u30b0\u306f\u9577\u3059\u304e\u3066\u306f\u3044\u3051\u306a\u3044\u3002\u51b7\u5374\u6db2\u3092\u4f7f\u7528\u3057\u3066\u30ef\u30fc\u30af\u30d4\u30fc\u30b9\u304b\u3089\u306e\u71b1\u3092\u653e\u6563\u3057\u3001\u5de5\u5177\u306e\u6469\u8017\u7387\u3092\u4f4e\u6e1b\u3055\u305b\u308b\u3002.<\/p>\n\n\n\n<p>\u7814\u524a\uff1aAISI 4140\u90e8\u54c1\u306e\u5927\u304d\u306a\u8868\u9762\u3084\u30d0\u30c3\u30c1\u8868\u9762\u306e\u4ed5\u4e0a\u3052\u52a0\u5de5\u306b\u4f7f\u7528\u3055\u308c\u3001\u8868\u9762\u4ed5\u4e0a\u3052\u3068\u5bf8\u6cd5\u7cbe\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u3002\u30b7\u30e3\u30d5\u30c8\u3084\u30ae\u30a2\u306a\u3069\u306e\u6700\u7d42\u52a0\u5de5\u306b\u3088\u304f\u7528\u3044\u3089\u308c\u308b\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"700\" height=\"525\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/04\/5-axis-cnc-machining-center.webp\" alt=\"5\u8ef8\u30de\u30b7\u30cb\u30f3\u30b0\u30bb\u30f3\u30bf\u30fc\" class=\"wp-image-9165\" style=\"width:600px\" srcset=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/04\/5-axis-cnc-machining-center.webp 700w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/04\/5-axis-cnc-machining-center-300x225.webp 300w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/04\/5-axis-cnc-machining-center-16x12.webp 16w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/04\/elementor\/thumbs\/5-axis-cnc-machining-center-150x150.webp 800w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">4. \u8868\u9762\u51e6\u7406<\/h4>\n\n\n\n<p>AISI 4140\u306e\u30ef\u30fc\u30af\u30d4\u30fc\u30b9\u306e\u8868\u9762\u51e6\u7406\u306f\u3001\u8150\u98df\u9632\u6b62\u3068\u9306\u6b62\u3081\u3001\u8868\u9762\u5f37\u5316\u3001\u5916\u89b3\u51e6\u7406\u306b\u5206\u304b\u308c\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u8150\u98df\u9632\u6b62\u3068\u9306\u6b62\u3081<\/strong>:<\/p>\n\n\n\n<p>\u30ea\u30f3\u9178\u51e6\u7406\u3001\u30d6\u30e9\u30c3\u30af\u9178\u5316\u3001\u30e1\u30c3\u30ad\u3001\u30af\u30ed\u30e0\u30e1\u30c3\u30ad<\/p>\n\n\n\n<p>4140\u306f\u4e00\u822c\u7684\u306b\u30de\u30f3\u30ac\u30f3\u30ea\u30f3\u9178\u51e6\u7406\u3092\u4f7f\u7528\u3057\u3001\u8010\u71b1\u6027\u3068\u8010\u6469\u8017\u6027\u306b\u512a\u308c\u308b\u3002\u4e3b\u306b\u6a5f\u68b0\u52a0\u5de5\u90e8\u54c1\u3001\u30b7\u30e3\u30d5\u30c8\u3001\u30ae\u30a2\u306b\u7528\u3044\u3089\u308c\u3001\u305d\u306e\u5f8c\u6cb9\u6d78\u3057\u307e\u305f\u306f\u30b9\u30d7\u30ec\u30fc\u5857\u88c5\u3055\u308c\u308b\u3002.<\/p>\n\n\n\n<p>4140\u306e\u30d6\u30e9\u30c3\u30af\u9178\u5316\u51e6\u7406\u306f\u30b3\u30b9\u30c8\u304c\u4f4e\u304f\u3001\u30df\u30af\u30ed\u30f3\u30ec\u30d9\u30eb\u306e\u819c\u5c64\u304c\u5bf8\u6cd5\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u306a\u3044\u3002.<\/p>\n\n\n\n<p>\u713c\u623b\u3057\u304a\u3088\u3073\u713c\u5165\u308c\u3055\u308c\u305f4140\u306e\u4e9c\u925b\u3081\u3063\u304d\u51e6\u7406\u306f\u3001\u4e3b\u306b\u5c4b\u5916\u90e8\u54c1\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u3001\u77f3\u6cb9\u6a5f\u68b0\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u713c\u5165\u308c\u3001\u713c\u623b\u3057\u3001\u30af\u30ed\u30e0\u30e1\u30c3\u30ad\u5f8c\u306e4140\u92fc\u306e\u7528\u9014\u306b\u306f\u3001\u6cb9\u5727\u30b7\u30ea\u30f3\u30c0\u30fc\u3001\u30d4\u30b9\u30c8\u30f3\u30ed\u30c3\u30c9\u3001\u91d1\u578b\u306a\u3069\u304c\u3042\u308a\u3001\u5f37\u529b\u306a\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u4ed8\u7740\u6027\u306e\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u8868\u9762\u5f37\u5316<\/strong>:<\/p>\n\n\n\n<p>\u7a92\u5316\u51e6\u7406\uff1a\u713c\u304d\u5165\u308c\u3068\u713c\u304d\u623b\u3057\u71b1\u51e6\u7406\u3092\u65bd\u3057\u305f4140\u92fc\u306b\u7a92\u5316\u51e6\u7406\u3092\u884c\u3063\u305f\u5f8c\u3001\u305d\u306e\u75b2\u52b4\u8010\u6027\u304c50%\u4ee5\u4e0a\u5411\u4e0a\u3057\u307e\u3059\u3002\u4e3b\u306b\u30ae\u30a2\u3001\u30af\u30e9\u30f3\u30af\u30b7\u30e3\u30d5\u30c8\u3001\u30d9\u30a2\u30ea\u30f3\u30b0\u5ea7\u3001\u30cd\u30b8\u306a\u3069\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u8a98\u5c0e\u786c\u5316\uff1a\u9ad8\u52b9\u7387\u3067\u3001\u5927\u91cf\u306e4140\u92fc\u90e8\u54c1\uff08\u30b7\u30e3\u30d5\u30c8\u3001\u30ae\u30a2\u3001\u30d4\u30f3\u306a\u3069\uff09\u306e\u8868\u9762\u786c\u5316\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30ec\u30fc\u30b6\u30fc\u786c\u5316\uff1a\u9ad8\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u5c40\u6240\u52a0\u71b1\u3068\u81ea\u5df1\u51b7\u5374\u306b\u3088\u308a\u3001AISI 4140\u90e8\u54c1\u306b\u5c0f\u3055\u306a\u5909\u5f62\u3067\u884c\u308f\u308c\u3001\u7cbe\u5bc6\u90e8\u54c1\u3084\u8907\u96d1\u306a\u7a7a\u6d1e\u306e\u5c40\u6240\u5f37\u5316\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30b7\u30e7\u30c3\u30c8\u30d4\u30fc\u30cb\u30f3\u30b0 \/ \u30d0\u30ea\u30b7\u30f3\u30b0\uff1a4140\u306e\u713c\u304d\u5165\u308c\u3068\u713c\u304d\u623b\u3057\u5f8c\u306e\u51e6\u7406\u3067\u3001\u30ef\u30fc\u30af\u30d4\u30fc\u30b9\u306e\u5185\u90e8\u5fdc\u529b\u306e\u4e00\u90e8\u3092\u89e3\u653e\u3057\u3001\u75b2\u52b4\u8010\u6027\u3068\u4e80\u88c2\u9632\u6b62\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002\u4e3b\u306b\u30af\u30e9\u30f3\u30af\u30b7\u30e3\u30d5\u30c8\u3001\u30b3\u30cd\u30af\u30c6\u30a3\u30f3\u30b0\u30ed\u30c3\u30c9\u3001\u30b9\u30d7\u30ea\u30f3\u30b0\u306a\u3069\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u5916\u89b3\u51e6\u7406<\/strong>:<\/p>\n\n\n\n<p>\u7814\u78e8\uff1aAISI 4140\u306f\u6a5f\u68b0\u7814\u78e8\u3068\u96fb\u89e3\u7814\u78e8\u306e\u4e21\u65b9\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002\u96fb\u89e3\u7814\u78e8\u306f\u3088\u308a\u826f\u3044\u8868\u9762\u4ed5\u4e0a\u3052\u3092\u63d0\u4f9b\u3057\u3001RA\u22640.2\u306b\u9054\u3057\u3001\u8907\u96d1\u306a4340\u90e8\u54c1\u306e\u52a0\u5de5\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p>PVD\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\uff1a4140\u306e\u8868\u9762\u786c\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u3001\u6469\u64e6\u4fc2\u6570\u3092\u4f4e\u6e1b\u3057\u307e\u3059\u3002\u30b7\u30e3\u30d5\u30c8\u3084\u6469\u64e6\u90e8\u54c1\u306f4140\u92fc\u306e\u4e00\u822c\u7684\u306a\u7528\u9014\u3067\u3059\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-4.webp\" alt=\"AISI 4340\u30af\u30e9\u30f3\u30d7\u30cd\u30b8\u306e\u5074\u9762\u56f3 \" class=\"wp-image-10050\" style=\"width:600px\" srcset=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-4.webp 800w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-4-300x300.webp 300w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-4-150x150.webp 150w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-4-768x768.webp 768w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/05\/aisi-4340-clamp-screw-4-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">AISI 4140\u92fc\u306e\u4e00\u822c\u7684\u306a\u5f62\u72b6<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">4140\u92fc\u677f<\/h3>\n\n\n\n<p>4140\u92fc\u677f\u306b\u306f\u4e3b\u306b\u71b1\u9593\u5727\u5ef6\u677f\u3001\u51b7\u9593\u5727\u5ef6\u677f\u3001\u30ec\u30d9\u30ea\u30f3\u30b0\u677f\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u539a\u3055\u306f0.1mm\u304b\u3089300mm\u307e\u3067\u306e\u7bc4\u56f2\u3067\u3001\u5e45\u3068\u9577\u3055\u306f\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u53ef\u80fd\u3067\u3059\u3002\u91d1\u578b\u3001\u69cb\u9020\u90e8\u54c1\u3001\u5727\u529b\u5bb9\u5668\u306a\u3069\u306e\u88fd\u9020\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4140\u92fc\u68d2<\/h3>\n\n\n\n<p>\u5f53\u793e\u306e4140\u92fc\u68d2\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u3092\u8a2a\u308c\u308b\u3068\u3001\u71b1\u9593\u5727\u5ef6\u4e38\u68d2\u3001\u51b7\u9593\u5f15\u304d\u4e38\u68d2\u3001\u935b\u9020\u4e38\u68d2\u306a\u3069\u3092\u3088\u304f\u76ee\u306b\u3057\u307e\u3059\u3002\u76f4\u5f84\u306f\u6570\u30df\u30ea\u30e1\u30fc\u30c8\u30eb\u304b\u3089\u6570\u767e\u30df\u30ea\u30e1\u30fc\u30c8\u30eb\u307e\u3067\u3067\u3001\u30b7\u30e3\u30d5\u30c8\u3001\u30ae\u30a2\u3001\u30dc\u30eb\u30c8\u306a\u3069\u306e\u6a5f\u68b0\u90e8\u54c1\u306e\u88fd\u9020\u306b\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4140\u92fc\u7ba1<\/h3>\n\n\n\n<p>4140\u306e\u30b7\u30fc\u30e0\u30ec\u30b9\u7ba1\u3068\u6eb6\u63a5\u7ba1\u3092\u542b\u307f\u3001\u3055\u307e\u3056\u307e\u306a\u5916\u5f84\u3068\u58c1\u539a\u306e\u4ed5\u69d8\u304c\u3042\u308a\u307e\u3059\u3002\u6cb9\u4e95\u6398\u524a\u3001\u5316\u5b66\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3001\u6a5f\u68b0\u4f1d\u52d5\u306a\u3069\u306e\u5206\u91ce\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3001\u5f37\u5ea6\u3001\u8010\u8150\u98df\u6027\u3001\u5bc6\u5c01\u6027\u80fd\u306e\u8981\u6c42\u3092\u6e80\u305f\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4140\u935b\u9020\u54c1<\/h3>\n\n\n\n<p>4140\u306f\u3001\u30ae\u30a2\u30d6\u30e9\u30f3\u30af\u3001\u30af\u30e9\u30f3\u30af\u30b7\u30e3\u30d5\u30c8\u3001\u30b3\u30cd\u30af\u30c6\u30a3\u30f3\u30b0\u30ed\u30c3\u30c9\u306a\u3069\u306e\u7279\u5b9a\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u3001\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3055\u308c\u305f\u5f62\u72b6\u306b\u935b\u9020\u53ef\u80fd\u3067\u3059\u3002\u7d50\u6676\u69cb\u9020\u304c\u5747\u4e00\u3067\u3001\u976d\u6027\u304c\u826f\u304f\u3001\u4e00\u5b9a\u306e\u8010\u885d\u6483\u6027\u3092\u6301\u3061\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4140\u92fc\u7dda<\/h3>\n\n\n\n<p>\u7d30\u5f84\u7dda\u306f\u3001\u30b9\u30d7\u30ea\u30f3\u30b0\u3001\u92fc\u7dda\u30ed\u30fc\u30d7\u3001\u6eb6\u63a5\u6750\u6599\u306a\u3069\u306e\u88fd\u9020\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u5f3e\u6027\u3068\u5f37\u5ea6\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u30024140\u92fc\u306e\u6eb6\u63a5\u6027\u306f\u4e2d\u7a0b\u5ea6\u304b\u3089\u4f4e\u30ec\u30d9\u30eb\u3067\u3042\u308a\u3001\u6eb6\u63a5\u524d\u306b\u4e88\u71b1\u304c\u5fc5\u8981\u3067\u3059\u3002\u30ac\u30b9\u30b7\u30fc\u30eb\u30c9\u6eb6\u63a5\u3084\u624b\u52d5\u30a2\u30fc\u30af\u6eb6\u63a5\u3092\u63a8\u5968\u3057\u3001\u6c34\u7d20\u304c\u767a\u751f\u3057\u3084\u3059\u3044\u6eb6\u63a5\u65b9\u6cd5\u306f\u907f\u3051\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7d50\u8ad6<\/h2>\n\n\n\n<p>\u4e0a\u8a18\u306f\u3001AISI 4140\u92fc\u306e\u5b8c\u5168\u306a\u6750\u6599\u7279\u6027\u3068\u4e00\u822c\u7684\u306a\u539f\u6750\u6599\u5f62\u614b\u3092\u30ab\u30d0\u30fc\u3057\u3066\u3044\u307e\u3059\u3002\u8a73\u7d30\u3092\u77e5\u308a\u305f\u3044\u5834\u5408\u3084 <a href=\"https:\/\/weldomachining.com\/ja\/%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%a2%e3%83%83%e3%83%97%e3%83%ad%e3%83%bc%e3%83%89\/\" data-type=\"page\" data-id=\"843\">\u898b\u7a4d\u3082\u308a\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f <\/a>\u92fc\u306e\u6a5f\u68b0\u52a0\u5de5\u30b5\u30fc\u30d3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044 <a href=\"https:\/\/weldomachining.com\/ja\/\" data-type=\"page\" data-id=\"6\">\u30a6\u30a7\u30eb\u30c9\u52a0\u5de5<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"540\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/02\/weldo-machining-center-3.webp\" alt=\"\u30a6\u30a7\u30eb\u30c9\u30de\u30b7\u30cb\u30f3\u30b0\u30bb\u30f3\u30bf\u30fc\" class=\"wp-image-7645\" style=\"width:600px\" srcset=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/02\/weldo-machining-center-3.webp 800w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/02\/weldo-machining-center-3-300x203.webp 300w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/02\/weldo-machining-center-3-768x518.webp 768w, https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/02\/weldo-machining-center-3-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">\u30a6\u30a7\u30eb\u30c9\u30de\u30b7\u30cb\u30f3\u30b0\u30bb\u30f3\u30bf\u30fc<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u3054\u8cea\u554f<\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list\">\n<div id=\"faq-question-1778060031396\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\">AISI 4140\u5408\u91d1\u92fc\u306e\u713c\u304d\u5165\u308c\u3068\u713c\u304d\u623b\u3057\u306e\u65b9\u6cd5\u306f\uff1f<\/h3>\n<div class=\"rank-math-answer\">\n\n<p>AISI 4140\u3092810-850\u00b0C\u306b\u52a0\u71b1\u3057\u3066\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u5316\u3057\u4fdd\u6301\u3057\u305f\u5f8c\u3001\u6cb9\u51b7\u5374\u3067\u51b7\u5374\u3057\u3001\u305d\u306e\u5f8c\u9ad8\u6e29\uff08\u307e\u305f\u306f\u4f4e\u6e29\uff09\u713c\u304d\u306a\u307e\u3057\u3092\u884c\u3044\u30de\u30eb\u30c6\u30f3\u30b5\u30a4\u30c8\u3092\u5f97\u308b\u3002\u3053\u306e\u5de5\u7a0b\u306f\u4e00\u822c\u7684\u306b\u713c\u304d\u5165\u308c\u3068\u713c\u304d\u306a\u307e\u3057\u3068\u547c\u3070\u308c\u308b\u3002.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1778060033042\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\">AISI 4140\u70ad\u7d20\u92fc\u306f\u6c34\u51b7\u5374\u53ef\u80fd\u3067\u3059\u304b\uff1f<\/h3>\n<div class=\"rank-math-answer\">\n\n<p>AISI 4140\u306f\u6c34\u51b7\u5374\u3067\u304d\u307e\u305b\u3093\u3002\u5c0f\u3055\u306a\u90e8\u54c1\u3067\u3082\u65ad\u9762\u306b\u30af\u30e9\u30c3\u30af\u304c\u5165\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u5927\u304d\u306aAISI 4140\u90e8\u54c1\u3001\u539a\u8089\u90e8\u54c1\u3001\u8907\u96d1\u306a\u5f62\u72b6\u306e\u90e8\u54c1\u306b\u306f\u6c34\u51b7\u5374\u306f\u53b3\u7981\u3067\u3059\u3002\u6025\u51b7\u306f\u4e80\u88c2\u3084\u8457\u3057\u3044\u5909\u5f62\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u5de5\u4f5c\u7269\u306e\u5ec3\u68c4\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<br \/>\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001AISI 4140\u306e\u5de5\u4f5c\u7269\u306f\u6cb9\u51b7\u5374\u3055\u308c\u307e\u3059\u3002\u6cb9\u5a92\u4ecb\u306e\u51b7\u5374\u901f\u5ea6\u306f\u6bd4\u8f03\u7684\u7a4f\u3084\u304b\u3067\u3001\u713c\u304d\u5165\u308c\u52b9\u679c\u3068\u5909\u5f62\u5236\u5fa1\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u3088\u308a\u826f\u304f\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1778060033771\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\">4140\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u3067\u3059\u304b\uff1f<\/h3>\n<div class=\"rank-math-answer\">\n\n<p>4140\u5408\u91d1\u92fc\u306e\u30af\u30ed\u30e0\u542b\u6709\u91cf\u306f\u901a\u5e380.80\u301c1.10TP3T\u3067\u3042\u308a\u3001\u3053\u308c\u306f10.5TP3T\u4ee5\u4e0a\u306e\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u306e\u57fa\u6e96\u5024\u3088\u308a\u306f\u308b\u304b\u306b\u4f4e\u3044\u305f\u3081\u3001\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u306e\u72ec\u7279\u306a\u8010\u98df\u6027\u3092\u6301\u3063\u3066\u3044\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u30014140\u92fc\u306f\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>AISI 4140 is an American standard grade of chrome moly steel. The 4140 steel equivalent in China is 42CrMo, in Germany is 42CrMo4, and in Japan is SCM440 alloy steel. It features high strength, high toughness, and good hardenability. Due to its moderate carbon content and rich alloying elements, it is also commonly heat treated to produce martensitic alloy steel with higher hardness. 4140 chrome moly steel can easily meet the application requirements of heavy-duty load-bearing components. Below, I will explain the characteristics and machining processes of AISI 4140 steel. AISI 4140 Steel Properties To introduce this material more scientifically, I will explain it according to the properties of metals, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":10048,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-10044","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/posts\/10044","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/comments?post=10044"}],"version-history":[{"count":3,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/posts\/10044\/revisions"}],"predecessor-version":[{"id":10070,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/posts\/10044\/revisions\/10070"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/media\/10048"}],"wp:attachment":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/media?parent=10044"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/categories?post=10044"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/tags?post=10044"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}