{"id":15058,"date":"2025-01-23T10:00:00","date_gmt":"2025-01-23T02:00:00","guid":{"rendered":"https:\/\/www.sogaworks.com\/?p=15058"},"modified":"2025-02-19T15:49:56","modified_gmt":"2025-02-19T07:49:56","slug":"guide-to-4140-steel","status":"publish","type":"post","link":"https:\/\/www.sogaworks.com\/jp\/blogs\/guide-to-4140-steel\/","title":{"rendered":"4140\u92fc\u3092\u7406\u89e3\u3059\u308b\uff1a\u51b6\u91d1\u5b66\u7684\u7279\u6027\u304b\u3089\u7528\u9014\u307e\u3067"},"content":{"rendered":"

4140\u92fc\u306f\u5f37\u5ea6\u3001\u976d\u6027\u3001\u8010\u6469\u8017\u6027\u306b\u512a\u308c\u305f\u4f4e\u5408\u91d1\u92fc\u3067\u3059\u3002AISI-\u7c73\u56fd\u9244\u92fc\u5354\u4f1a-\u5408\u91d1\u92fc\u30b7\u30ea\u30fc\u30ba\u306b\u5c5e\u3057\u3001\u975e\u5e38\u306b\u6c4e\u7528\u6027\u304c\u9ad8\u3044\u3002\u69d8\u3005\u306a\u7523\u696d\u3067\u5e45\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u30014140\u92fc\u306e\u4e3b\u306a\u7279\u6027\u3001\u7528\u9014\u3001\u6ce8\u610f\u70b9\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

4140\u92fc\u3068\u306f\uff1f<\/strong><\/h2>\n\n\n\n

4140\u306f\u4f4e\u5408\u91d1\u92fc\u3067\u3001\u4e3b\u306a\u5408\u91d1\u5143\u7d20\u306f\u70ad\u7d20\u3001\u30af\u30ed\u30e0\u3001\u30e2\u30ea\u30d6\u30c7\u30f3\u3067\u3042\u308b\u3002\u3053\u306e\u5316\u5b66\u7d44\u6210\u306f\u30014140\u92fc\u306b\u9ad8\u3044\u6a5f\u68b0\u7684\u7279\u6027\u3068\u82e5\u5e72\u306e\u8010\u98df\u6027\u3092\u4e0e\u3048\u308b\u30024140\u92fc\u306e\u786c\u5ea6\u3068\u976d\u6027\u306f\u3001\u713c\u5165\u308c\u3084\u713c\u623b\u3057\u306a\u3069\u306e\u69d8\u3005\u306a\u71b1\u51e6\u7406\u306b\u3088\u3063\u3066\u5909\u5316\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u30024140\u92fc\u306f\u3001\u4fa1\u683c\u306e\u5272\u306b\u512a\u308c\u305f\u6027\u80fd\u3092\u6301\u3061\u3001\u7523\u696d\u754c\u3067\u4f7f\u7528\u3055\u308c\u308b\u5168\u3066\u306e\u92fc\u306e\u4e2d\u3067\u3001\u975e\u5e38\u306b\u5e83\u3044\u5206\u91ce\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n\n\n\n

\"4140\u30b9\u30c1\u30fc\u30eb\u30ed\u30c3\u30c9\"<\/figure>\n\n\n\n

<\/p>\n\n\n\n

\u5316\u5b66\u7d44\u6210<\/strong><\/h3>\n\n\n\n

AISI4140\u92fc\u306e\u5316\u5b66\u7d44\u6210\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3002<\/p>\n\n\n\n

\u30d5\u30a7<\/td>C<\/td>Cr<\/td>\u30e0\u30f3<\/td>Si<\/td>\u30e2<\/td>P<\/td>S<\/td><\/tr>
\u30d0\u30e9\u30f3\u30b9<\/td>0.38 – 0.43%<\/td>0.8 – 1.1%<\/td>0.5 – 1%<\/td>0.15 – 0.3%<\/td>0.15 – 0.25%<\/td>0.035%<\/td>0.04%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\u3053\u308c\u3089\u306e\u5143\u7d20\u304c\u7d44\u307f\u5408\u308f\u3055\u308b\u3053\u3068\u3067\u3001\u92fc\u306e\u512a\u308c\u305f\u6a5f\u68b0\u7684\u6027\u80fd\u304c\u7dcf\u5408\u7684\u306b\u767a\u63ee\u3055\u308c\u308b\u3002\u4f8b\u3048\u3070\u3001\u70ad\u7d20\u306f\u786c\u5ea6\u3068\u5f37\u5ea6\u306b\u5bc4\u4e0e\u3057\u3001\u30af\u30ed\u30e0\u306f\u8010\u98df\u6027\u3068\u8010\u6469\u8017\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3002\u30de\u30f3\u30ac\u30f3\u306f\u713c\u5165\u308c\u6027\u3092\u9ad8\u3081\u3001\u30b1\u30a4\u7d20\u306f\u8131\u9178\u3092\u52a9\u3051\u3001\u92fc\u306e\u69cb\u9020\u3092\u5f37\u5316\u3059\u308b\u3002<\/p>\n\n\n\n

4140\u92fc\u76f8\u5f53\u54c1<\/strong><\/h3>\n\n\n\n

4140\u5408\u91d1\u92fc\u306e\u5316\u5b66\u7d44\u6210\u306f\u3001\u4e16\u754c\u5404\u5730\u57df\u306e\u898f\u683c\u306b\u3088\u3063\u3066\u540d\u79f0\u304c\u7570\u306a\u308b\u3002<\/p>\n\n\n\n

\u30a2\u30e1\u30ea\u30ab
(ASTM)<\/td>
\u4e2d\u56fd
(GB\/T\uff09<\/td>
\u82f1\u56fd
(BS)<\/td>
\u30c9\u30a4\u30c4
(DIN\uff09<\/td>
\u65e5\u672c
(\u65e5\u672c\u5de5\u696d\u898f\u683c\uff09<\/td>
\u30d5\u30e9\u30f3\u30b9
(NF)<\/td><\/tr>
4140<\/td>42CrMo<\/td>708M40<\/td>42CrMo4<\/td>SCM440<\/td>40CD4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>\n\n\n\n

4140\u92fc\u306e\u71b1\u51e6\u7406<\/strong><\/h2>\n\n\n\n

\u71b1\u51e6\u7406\u306f4140\u92fc\u306e\u6a5f\u68b0\u7684\u6027\u8cea\u3092\u5411\u4e0a\u3055\u305b\u308b\u91cd\u8981\u306a\u5de5\u7a0b\u306e\u4e00\u3064\u3067\u3042\u308a\u30014140\u92fc\u306f\u9ad8\u5f37\u5ea6\u3068\u976d\u6027\u3092\u6301\u3064\u4f4e\u5408\u91d1\u92fc\u3067\u3042\u308b\u3002\u5f93\u3063\u3066\u3001\u69d8\u3005\u306a\u7523\u696d\u5206\u91ce\u306b\u9069\u7528\u3067\u304d\u308b\u3002\u57fa\u672c\u7684\u306a\u71b1\u51e6\u7406\u5de5\u7a0b\u306b\u306f\u901a\u5e38\u3001\u713c\u306a\u307e\u3057\u3001\u713c\u306a\u3089\u3057\u3001\u713c\u623b\u3057\u3001\u713c\u5165\u308c\u306a\u3069\u304c\u3042\u308a\u3001\u305d\u308c\u305e\u308c\u304c\u92fc\u306e\u7d44\u7e54\u3084\u5168\u4f53\u7684\u306a\u6027\u80fd\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3002<\/p>\n\n\n\n

\u30a2\u30cb\u30fc\u30ea\u30f3\u30b0<\/strong><\/h3>\n\n\n\n

\u713c\u304d\u306a\u307e\u3057\u3068\u306f\u92fc\u3092\u8edf\u5316\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u6a5f\u68b0\u52a0\u5de5\u3084\u95a2\u9023\u4f5c\u696d\u3092\u5bb9\u6613\u306b\u3059\u308b\u3002<\/p>\n\n\n\n