{"id":3571,"date":"2026-11-04T18:32:28","date_gmt":"2026-11-04T10:32:28","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?p=3571"},"modified":"2026-11-04T14:48:21","modified_gmt":"2026-11-04T06:48:21","slug":"s45c%e3%81%a81045%e9%8b%bc%e3%81%ae%e6%af%94%e8%bc%83","status":"publish","type":"post","link":"https:\/\/www.jccncmachining.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/s45c%e3%81%a81045%e9%8b%bc%e3%81%ae%e6%af%94%e8%bc%83\/","title":{"rendered":"S45C vs 1045\uff1a\u4ee3\u66ff\u524d\u306b\u4ed5\u69d8\u3092\u78ba\u8a8d\u3059\u308b"},"content":{"rendered":"<p>S45C\u3068SAE 1045\u306f\u3057\u3070\u3057\u3070\u8fd1\u3044\u70ad\u7d20\u92fc\u306e\u5bfe\u5fdc\u6750\u3068\u3057\u3066\u6271\u308f\u308c\u307e\u3059\u304c\u3001\u540d\u79f0\u540c\u58eb\u306e\u4e00\u81f4\u3060\u3051\u3067\u306f\u4ee3\u66ff\u3092\u627f\u8a8d\u3059\u308b\u306e\u306b\u5341\u5206\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u56f3\u9762\u3084\u767a\u6ce8\u66f8\u3092\u5909\u66f4\u3059\u308b\u524d\u306b\u3001\u9069\u7528\u898f\u683c\u3068\u7248\u3001\u88fd\u54c1\u5f62\u614b\u3001\u5316\u5b66\u6210\u5206\u306e\u8a31\u5bb9\u7bc4\u56f2\u3001\u7d0d\u5165\u72b6\u614b\u3001\u71b1\u51e6\u7406\u3001\u65ad\u9762\u30b5\u30a4\u30ba\u3001\u304a\u3088\u3073\u8981\u6c42\u3055\u308c\u308b\u6a5f\u68b0\u7684\u6027\u8cea\u3092\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6a5f\u68b0\u52a0\u5de5\u90e8\u54c1\u306e\u5834\u5408\u3001\u516c\u79f0\u70ad\u7d20\u7bc4\u56f2\u304c\u985e\u4f3c\u3057\u3066\u898b\u3048\u3066\u3082\u3001\u3053\u308c\u3089\u306e\u8a73\u7d30\u306f\u5207\u524a\u6319\u52d5\u3001\u3072\u305a\u307f\u3001\u786c\u3055\u3001\u6700\u7d42\u53d7\u5165\u8a66\u9a13\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<p>\u3053\u306e\u6bd4\u8f03\u306f\u4ed5\u69d8\u6c7a\u5b9a\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u7528\u3044\u308b\u3082\u306e\u3067\u3042\u308a\u3001\u3059\u3079\u3066\u306eS45C\u68d2\u92fc\u304c\u3059\u3079\u3066\u306e1045\u88fd\u54c1\u3068\u540c\u7b49\u3067\u3042\u308b\u3068\u4e3b\u5f35\u3059\u308b\u305f\u3081\u306e\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8a2d\u8a08\u304c\u5f37\u5ea6\u3001\u786c\u3055\u3001\u6eb6\u63a5\u6027\u3001\u307e\u305f\u306f\u30c8\u30ec\u30fc\u30b5\u30d3\u30ea\u30c6\u30a3\u306b\u4f9d\u5b58\u3059\u308b\u5834\u5408\u3001\u5b9f\u969b\u306e\u6750\u6599\u8a3c\u660e\u66f8\u3068\u72b6\u614b\u304c\u3001\u5b89\u6613\u306a\u92fc\u7a2e\u30af\u30ed\u30b9\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3088\u308a\u3082\u91cd\u8981\u3067\u3059\u3002.<\/p>\n<nav class=\"article-toc\" aria-label=\"\u76ee\u6b21\"><strong>\u3053\u306e\u30da\u30fc\u30b8\u306e\u5185\u5bb9<\/strong><\/p>\n<ul>\n<li><a href=\"#designation\">2\u3064\u306e\u547c\u79f0\u304c\u5b9f\u969b\u306b\u793a\u3059\u3082\u306e<\/a><\/li>\n<li><a href=\"#specification\">\u898f\u683c\u3068\u88fd\u54c1\u5f62\u614b\u3092\u6bd4\u8f03\u3059\u308b<\/a><\/li>\n<li><a href=\"#condition\">\u72b6\u614b\u306f\u6a5f\u68b0\u52a0\u5de5\u3068\u6027\u80fd\u3092\u5909\u3048\u3046\u308b<\/a><\/li>\n<li><a href=\"#substitution\">\u898f\u5f8b\u3042\u308b\u4ee3\u66ff\u54c1\u30ec\u30d3\u30e5\u30fc<\/a><\/li>\n<li><a href=\"#table\">\u56f3\u9762\u30ea\u30ea\u30fc\u30b9\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/a><\/li>\n<li><a href=\"#traceability\">\u627f\u8a8d\u306f\u7d0d\u5165\u3055\u308c\u305f\u30d2\u30fc\u30c8\u306b\u7d10\u3065\u3051\u308b<\/a><\/li>\n<\/ul>\n<\/nav>\n<section id=\"designation\">\n<h2>2\u3064\u306e\u547c\u79f0\u304c\u5b9f\u969b\u306b\u793a\u3059\u3082\u306e<\/h2>\n<p>S45C\u306fJIS G 4051\u306b\u95a2\u9023\u3059\u308b\u65e5\u672c\u306e\u70ad\u7d20\u92fc\u547c\u79f0\u3067\u3042\u308a\u30011045\u306fSAE\u306e\u70ad\u7d20\u92fc\u547c\u79f0\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u547c\u79f0\u306f\u985e\u4f3c\u3057\u305f\u516c\u79f0\u70ad\u7d20\u92fc\u30d5\u30a1\u30df\u30ea\u30fc\u3092\u6307\u3057\u307e\u3059\u304c\u3001\u305d\u308c\u81ea\u4f53\u3067\u306f\u56f3\u9762\u3001\u4f9b\u7d66\u5951\u7d04\u3001\u307e\u305f\u306f\u88fd\u54c1\u898f\u683c\u306b\u3088\u3063\u3066\u8ab2\u3055\u308c\u308b\u3059\u3079\u3066\u306e\u8981\u4ef6\u3092\u5b9a\u7fa9\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002SAE J403\u306f\u3001\u70ad\u7d20\u92fc\u306e\u5316\u5b66\u6210\u5206\u304c\u9650\u5ea6\u307e\u305f\u306f\u7bc4\u56f2\u3067\u8868\u3055\u308c\u3001\u88fd\u54c1\u5206\u6790\u8a31\u5bb9\u5dee\u304c\u8a8d\u3081\u3089\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u8aac\u660e\u3057\u3066\u304a\u308a\u3001\u305d\u306e\u8868\u306f\u88fd\u54c1\u5f62\u614b\u306e\u8003\u616e\u3082\u53cd\u6620\u3057\u3066\u3044\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u30af\u30ed\u30b9\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u306f\u30c1\u30e3\u30fc\u30c8\u304b\u3089\u30b3\u30d4\u30fc\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u5b9f\u969b\u306e\u4ed5\u69d8\u3068\u7167\u5408\u3057\u3066\u78ba\u8a8d\u3059\u3079\u304d\u3067\u3059\u3002.<\/p>\n<p>\u307e\u305f\u3001\u300cAISI 1045\u300d\u3092\u3001\u3042\u305f\u304b\u3082AISI\u304c\u73fe\u5728\u3082\u92fc\u7a2e\u547c\u79f0\u3092\u767a\u884c\u3057\u3066\u3044\u308b\u304b\u306e\u3088\u3046\u306b\u8868\u73fe\u3059\u308b\u3053\u3068\u3082\u907f\u3051\u3066\u304f\u3060\u3055\u3044\u3002SAE\u306eJ403\u30da\u30fc\u30b8\u306b\u306f\u3001\u540c\u6587\u66f8\u306e\u92fc\u7a2e\u304cSAE\u92fc\u7a2e\u3067\u3042\u308b\u3053\u3068\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u6587\u66f8\u3067\u306f\u3001\u5b9f\u969b\u306b\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u547c\u79f0\u3068\u898f\u683c\u3092\u4fdd\u6301\u3057\u3001\u305d\u306e\u4e0a\u3067\u73fe\u5728\u306e\u5951\u7d04\u6587\u8a00\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<\/section>\n<section id=\"specification\">\n<h2>\u898f\u683c\u3068\u88fd\u54c1\u5f62\u614b\u3092\u6bd4\u8f03\u3059\u308b<\/h2>\n<p>\u7ba1\u7406\u3055\u308c\u305f\u539f\u8cc7\u6599\u304b\u3089\u4e26\u5217\u6bd4\u8f03\u3092\u69cb\u7bc9\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5316\u5b66\u6210\u5206\u306e\u8a31\u5bb9\u7bc4\u56f2\u3001\u8a31\u5bb9\u3055\u308c\u308b\u88fd\u54c1\u5206\u6790\u3001\u30d2\u30fc\u30c8\u5206\u6790\u307e\u305f\u306f\u92f3\u9020\u5206\u6790\u306e\u5831\u544a\u3001\u5bfe\u8c61\u3068\u306a\u308b\u5bf8\u6cd5\u3068\u5f62\u614b\u3001\u7d0d\u5165\u72b6\u614b\u3001\u304a\u3088\u3073\u6a5f\u68b0\u7684\u6027\u8cea\u306e\u8981\u4ef6\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u92fc\u7a2e\u540c\u7b49\u6027\u8868\u306f\u3001\u4e00\u81f4\u306e\u4f5c\u6210\u306b\u4f7f\u7528\u3055\u308c\u305f\u898f\u683c\u306e\u7248\u3001\u88fd\u54c1\u5f62\u614b\u3001\u304a\u3088\u3073\u72b6\u614b\u3092\u7279\u5b9a\u3057\u3066\u3044\u306a\u3044\u9650\u308a\u3001\u30b9\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\u306e\u88dc\u52a9\u306b\u3059\u304e\u307e\u305b\u3093\u3002.<\/p>\n<p><img src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-heat-certificate-and-bar-stock-1024x576.webp\" alt=\"\u68d2\u92fc\u306e\u96a3\u306b\u7f6e\u304b\u308c\u305f\u92fc\u6750\u30d2\u30fc\u30c8\u8a3c\u660e\u66f8\" width=\"1024\" height=\"576\" class=\"alignnone size-large wp-image-3591\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-heat-certificate-and-bar-stock-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-heat-certificate-and-bar-stock-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-heat-certificate-and-bar-stock-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-heat-certificate-and-bar-stock-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-heat-certificate-and-bar-stock-18x10.webp 18w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-heat-certificate-and-bar-stock-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-heat-certificate-and-bar-stock.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>\u4f8b\u3048\u3070\u3001\u71b1\u9593\u5727\u5ef6\u68d2\u92fc\u3001\u51b7\u9593\u4ed5\u4e0a\u3052\u68d2\u92fc\u3001\u304a\u3088\u3073\u71b1\u51e6\u7406\u6e08\u307f\u30b7\u30e3\u30d5\u30c8\u306f\u540c\u3058\u92fc\u7a2e\u30d5\u30a1\u30df\u30ea\u30fc\u3092\u5171\u6709\u3057\u3066\u3044\u3066\u3082\u3001\u786c\u3055\u3001\u6b8b\u7559\u5fdc\u529b\u3001\u8868\u9762\u72b6\u614b\u3001\u304a\u3088\u3073\u6a5f\u68b0\u52a0\u5de5\u4ee3\u304c\u7570\u306a\u308b\u72b6\u614b\u3067\u5c4a\u304f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u56f3\u9762\u304c\u7279\u5b9a\u306e\u68d2\u92fc\u30b5\u30a4\u30ba\u3001\u713c\u306a\u3089\u3057\u72b6\u614b\u3001\u5f15\u5f35\u7bc4\u56f2\u3001\u307e\u305f\u306f\u786c\u3055\u3092\u8981\u6c42\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u8981\u4ef6\u3092\u5225\u9014\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5f53\u30b5\u30a4\u30c8\u306e <a href=\"https:\/\/www.jccncmachining.com\/ja\/%e6%9d%90%e6%96%99\/%e9%8b%bc\/1045%e9%8b%bc\/\">1045\u92fc\u30da\u30fc\u30b8<\/a> \u306f\u6750\u6599\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3067\u3042\u308a\u3001\u5225\u306e\u898f\u683c\u306e\u88fd\u54c1\u3078\u306e\u4ee3\u66ff\u3092\u627f\u8a8d\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<\/section>\n<section id=\"condition\">\n<h2>\u72b6\u614b\u306f\u6a5f\u68b0\u52a0\u5de5\u3068\u6027\u80fd\u3092\u5909\u3048\u3046\u308b<\/h2>\n<p>\u52a0\u5de5\u5fdc\u7b54\u306f\u3001\u5316\u5b66\u6210\u5206\u3060\u3051\u3067\u306a\u304f\u7d0d\u5165\u72b6\u614b\u306b\u3082\u5f71\u97ff\u3055\u308c\u307e\u3059\u3002\u786c\u3044\u6750\u6599\u3084\u51b7\u9593\u52a0\u5de5\u3055\u308c\u305f\u6750\u6599\u306f\u5de5\u5177\u8ca0\u8377\u3092\u5897\u5927\u3055\u305b\u3001\u5207\u308a\u304f\u305a\u306e\u6319\u52d5\u3092\u5909\u5316\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5fdc\u529b\u9664\u53bb\u307e\u305f\u306f\u71b1\u51e6\u7406\u3055\u308c\u305f\u72b6\u614b\u3067\u306f\u3001\u52a0\u5de5\u6027\u304c\u7570\u306a\u308a\u3001\u6750\u6599\u9664\u53bb\u6642\u306e\u52d5\u304d\u3082\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u90e8\u54c1\u306e\u5f62\u72b6\u3082\u91cd\u8981\u3067\u3059\u3002\u9577\u304f\u7d30\u3044\u90e8\u5206\u3001\u975e\u5bfe\u79f0\u306a\u30dd\u30b1\u30c3\u30c8\u3001\u65ad\u7d9a\u5207\u524a\u306f\u3001\u77ed\u304f\u5bfe\u79f0\u7684\u306a\u65cb\u524a\u90e8\u54c1\u3068\u306f\u7570\u306a\u308b\u30ea\u30b9\u30af\u3092\u751f\u3058\u307e\u3059\u3002.<\/p>\n<p><img src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-shaft-before-after-heat-treatment-1024x576.webp\" alt=\"\u71b1\u51e6\u7406\u524d\u5f8c\u306e\u92fc\u88fd\u30b7\u30e3\u30d5\u30c8\" width=\"1024\" height=\"576\" class=\"alignnone size-large wp-image-3592\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-shaft-before-after-heat-treatment-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-shaft-before-after-heat-treatment-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-shaft-before-after-heat-treatment-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-shaft-before-after-heat-treatment-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-shaft-before-after-heat-treatment-18x10.webp 18w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-shaft-before-after-heat-treatment-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/steel-shaft-before-after-heat-treatment.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>\u6700\u7d42\u7684\u306a\u6a5f\u80fd\u3092\u4e2d\u5fc3\u306b\u5de5\u7a0b\u9806\u5e8f\u3092\u8a08\u753b\u3057\u307e\u3059\u3002\u8352\u52a0\u5de5\u304c\u71b1\u51e6\u7406\u306b\u5148\u884c\u3059\u308b\u304b\u3001\u4ed5\u4e0a\u3052\u4ee3\u304c\u6b8b\u308b\u304b\u3001\u51e6\u7406\u5f8c\u306b\u3069\u306e\u30c7\u30fc\u30bf\u30e0\u3092\u5fa9\u5143\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u5909\u5f62\u8a31\u5bb9\u91cf\u304c\u3059\u3079\u3066\u306e\u90e8\u5206\u3084\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306b\u9069\u7528\u3055\u308c\u308b\u3068\u4eee\u5b9a\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u71b1\u51e6\u7406\u5f8c\u306b\u91cd\u8981\u306a\u30dc\u30a2\u3084\u9762\u304c\u5408\u683c\u3068\u3055\u308c\u308b\u5834\u5408\u3001\u6e2c\u5b9a\u6bb5\u968e\u3068\u57fa\u6e96\u9762\u3092\u660e\u8a18\u3057\u307e\u3059\u3002\u8a72\u5f53\u3059\u308b\u52a0\u5de5\u30eb\u30fc\u30c8\u306b\u3064\u3044\u3066\u306f\u3001\u30b5\u30a4\u30c8\u306e <a href=\"https:\/\/www.jccncmachining.com\/ja\/%e6%a9%9f%e8%83%bd\/cnc%e3%83%95%e3%83%a9%e3%82%a4%e3%82%b9%e5%8a%a0%e5%b7%a5\/\">CNC\u30d5\u30e9\u30a4\u30b9\u52a0\u5de5\u80fd\u529b\u30da\u30fc\u30b8<\/a> \u304c\u30b5\u30fc\u30d3\u30b9\u306e\u6587\u8108\u3092\u8aac\u660e\u3057\u307e\u3059\u304c\u3001\u56f3\u9762\u304c\u5408\u683c\u5224\u5b9a\u306e\u6a29\u9650\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002.<\/p>\n<\/section>\n<section id=\"substitution\">\n<h2>\u898f\u5f8b\u3042\u308b\u4ee3\u66ff\u54c1\u30ec\u30d3\u30e5\u30fc<\/h2>\n<p>\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u304c1045\u306b\u5bfe\u3057\u3066S45C\u3092\u3001\u307e\u305f\u306f\u305d\u306e\u9006\u3092\u63d0\u6848\u3059\u308b\u5834\u5408\u3001\u6b63\u78ba\u306a\u898f\u683c\u3068\u7248\u3001\u6750\u6599\u30b0\u30ec\u30fc\u30c9\u3001\u88fd\u54c1\u5f62\u614b\u3068\u30b5\u30a4\u30ba\u3001\u30d2\u30fc\u30c8\u756a\u53f7\u3001\u7d0d\u5165\u72b6\u614b\u3001\u8a3c\u660e\u66f8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5316\u5b66\u6210\u5206\u3068\u3001\u8a2d\u8a08\u304c\u5b9f\u969b\u306b\u8981\u6c42\u3059\u308b\u6a5f\u68b0\u7684\u6027\u8cea\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002\u71b1\u51e6\u7406\u3084\u8868\u9762\u786c\u5316\u304c\u95a2\u4e0e\u3059\u308b\u5834\u5408\u3001\u30d7\u30ed\u30bb\u30b9\u4ed5\u69d8\u3068\u7d50\u679c\u3068\u3057\u3066\u306e\u5408\u683c\u5224\u5b9a\u65b9\u6cd5\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002\u6eb6\u63a5\u6027\u3001\u75b2\u52b4\u3001\u885d\u6483\u6319\u52d5\u304c\u91cd\u8981\u3067\u3042\u308b\u5834\u5408\u3001\u305d\u308c\u3089\u306e\u8981\u4ef6\u3092\u76f4\u63a5\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u516c\u79f0\u30b0\u30ec\u30fc\u30c9\u306e\u985e\u4f3c\u6027\u3067\u306f\u305d\u308c\u3089\u306b\u7b54\u3048\u3089\u308c\u307e\u305b\u3093\u3002.<\/p>\n<p>\u6b21\u306b\u3001\u4e0d\u4e00\u81f4\u306e\u7d50\u679c\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u91cd\u8981\u3067\u306a\u3044\u30b9\u30da\u30fc\u30b5\u30fc\u306f\u3001\u6587\u66f8\u5316\u3055\u308c\u305f\u5316\u5b66\u6210\u5206\u3068\u5bf8\u6cd5\u9069\u5408\u306e\u307f\u3092\u5fc5\u8981\u3068\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u99c6\u52d5\u90e8\u54c1\u3084\u4f4d\u7f6e\u6c7a\u3081\u30b7\u30e3\u30d5\u30c8\u306f\u3001\u6a5f\u68b0\u7684\u6027\u8cea\u306e\u8a3c\u62e0\u3001\u8868\u9762\u72b6\u614b\u3001\u786c\u3055\u3001\u307e\u305f\u306f\u6a5f\u80fd\u8a66\u9a13\u3092\u5fc5\u8981\u3068\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u30ec\u30d3\u30e5\u30fc\u306f\u30ea\u30b9\u30af\u306b\u6bd4\u4f8b\u3059\u3079\u304d\u3067\u3042\u308a\u3001\u767a\u6ce8\u66f8\u304c\u5909\u66f4\u3055\u308c\u308b\u524d\u306b\u8a18\u9332\u3055\u308c\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n<\/section>\n<section id=\"table\">\n<h2>\u56f3\u9762\u30ea\u30ea\u30fc\u30b9\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u78ba\u8a8d\u4e8b\u9805<\/th>\n<th>\u6bd4\u8f03\u3059\u308b\u8a3c\u62e0<\/th>\n<th>\u91cd\u8981\u306a\u7406\u7531<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u547c\u79f0\u3068\u898f\u683c<\/td>\n<td>\u6b63\u78ba\u306a\u30b0\u30ec\u30fc\u30c9\u3001\u898f\u683c\u756a\u53f7\u3001\u7248\u3001\u304a\u3088\u3073\u88dc\u8db3\u8981\u4ef6<\/td>\n<td>\u30d5\u30a1\u30df\u30ea\u30fc\u30ec\u30d9\u30eb\u306e\u76f8\u4e92\u53c2\u7167\u304c\u5951\u7d04\u8981\u4ef6\u3092\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u3092\u9632\u3050<\/td>\n<\/tr>\n<tr>\n<td>\u88fd\u54c1\u5f62\u614b\u304a\u3088\u3073\u30b5\u30a4\u30ba<\/td>\n<td>\u68d2\u6750\u3001\u677f\u6750\u3001\u935b\u9020\u54c1\u3001\u65ad\u9762\u30b5\u30a4\u30ba\u3001\u7d0d\u5165\u72b6\u614b<\/td>\n<td>\u72b6\u614b\u3068\u65ad\u9762\u306f\u6027\u8cea\u304a\u3088\u3073\u52a0\u5de5\u6642\u306e\u52d5\u304d\u306b\u5f71\u97ff\u3057\u5f97\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u5316\u5b66\u6210\u5206<\/td>\n<td>\u30d2\u30fc\u30c8\u5206\u6790\u304a\u3088\u3073\u8981\u6c42\u3055\u308c\u308b\u88fd\u54c1\u5206\u6790<\/td>\n<td>\u4e00\u822c\u7684\u306a\u8868\u3067\u306f\u306a\u304f\u3001\u6307\u5b9a\u3055\u308c\u305f\u9650\u754c\u306b\u5bfe\u3059\u308b\u9069\u5408\u6027\u3092\u78ba\u8a8d\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u6a5f\u68b0\u7684\u72b6\u614b<\/td>\n<td>\u786c\u3055\u3001\u5f15\u5f35\u5f37\u3055\u305d\u306e\u4ed6\u306e\u898f\u5b9a\u7d50\u679c\u3001\u304a\u3088\u3073\u8a66\u9a13\u57fa\u6e96<\/td>\n<td>\u90e8\u54c1\u6027\u80fd\u3092\u5de6\u53f3\u3059\u308b\u7279\u6027\u3092\u78ba\u8a8d\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u5de5\u7a0b\u3068\u53d7\u5165<\/td>\n<td>\u71b1\u51e6\u7406\u3001\u6a5f\u68b0\u52a0\u5de5\u6bb5\u968e\u3001\u91cd\u8981\u30c7\u30fc\u30bf\u30e0\u3001\u304a\u3088\u3073\u691c\u67fb\u8a18\u9332<\/td>\n<td>\u7d0d\u5165\u90e8\u54c1\u3092\u8a2d\u8a08\u306e\u53d7\u5165\u8ad6\u7406\u306b\u7d50\u3073\u4ed8\u3051\u3066\u7dad\u6301\u3059\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u9069\u7528\u3055\u308c\u308b\u898f\u683c\u306e\u6700\u65b0\u7248\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3002\u3042\u308b\u898f\u683c\u304c\u4f9b\u7d66\u5f62\u614b\u306b\u5bfe\u3057\u3066\u8981\u6c42\u7279\u6027\u3092\u898f\u5b9a\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u7570\u306a\u308b\u88fd\u54c1\u72b6\u614b\u306e\u5024\u3067\u305d\u306e\u7a7a\u767d\u3092\u57cb\u3081\u3066\u306f\u306a\u3089\u306a\u3044\u3002.<\/p>\n<\/section>\n<section id=\"traceability\">\n<h2>\u627f\u8a8d\u306f\u7d0d\u5165\u3055\u308c\u305f\u30d2\u30fc\u30c8\u306b\u7d10\u3065\u3051\u308b<\/h2>\n<p>\u4ee3\u66ff\u304c\u627f\u8a8d\u3055\u308c\u305f\u3089\u3001\u8cfc\u8cb7\u8a18\u9332\u3001\u6750\u6599\u8a3c\u660e\u66f8\u3001\u304a\u3088\u3073\u691c\u67fb\u8a08\u753b\u3092\u4e00\u81f4\u3055\u305b\u308b\u3053\u3068\u3002\u7d0d\u5165\u3055\u308c\u305f\u547c\u79f0\u3001\u898f\u683c\u3001\u30d2\u30fc\u30c8\u307e\u305f\u306f\u30ed\u30c3\u30c8\u8b58\u5225\u3001\u72b6\u614b\u3001\u304a\u3088\u3073\u88dc\u8db3\u8a66\u9a13\u7d50\u679c\u3092\u8a18\u9332\u3059\u308b\u3053\u3068\u3002\u90e8\u54c1\u304c\u8907\u6570\u306e\u30d2\u30fc\u30c8\u306b\u5206\u5272\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u5404\u30d0\u30c3\u30c1\u3068\u53d7\u5165\u306b\u5fc5\u8981\u306a\u8a18\u9332\u3068\u306e\u95a2\u4fc2\u3092\u4fdd\u6301\u3059\u308b\u3053\u3068\u3002 <a href=\"https:\/\/www.jccncmachining.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/cnc%e6%9d%90%e6%96%99%e3%81%ae%e5%af%b8%e6%b3%95%e3%83%88%e3%83%ac%e3%83%bc%e3%82%b5%e3%83%93%e3%83%aa%e3%83%86%e3%82%a3\/\">\u6750\u6599\u304a\u3088\u3073\u5bf8\u6cd5\u306e\u30c8\u30ec\u30fc\u30b5\u30d3\u30ea\u30c6\u30a3\u30ac\u30a4\u30c9<\/a> \u306f\u3001\u6750\u6599\u306e\u8a3c\u62e0\u3092\u5b8c\u6210\u90e8\u54c1\u306e\u8a18\u9332\u306b\u7d50\u3073\u4ed8\u3051\u308b\u65b9\u6cd5\u3092\u6271\u3046\u3002.<\/p>\n<p>\u5b89\u5168\u306a\u7d50\u8ad6\u306f\u660e\u5feb\u3067\u3042\u308b\u3002S45C\u30681045\u306f\u7279\u5b9a\u306e\u7528\u9014\u3067\u306f\u5341\u5206\u306b\u8fd1\u3044\u5834\u5408\u304c\u3042\u308b\u304c\u3001\u8981\u6c42\u4e8b\u9805\u3054\u3068\u306e\u30ec\u30d3\u30e5\u30fc\u306e\u307f\u304c\u4ee3\u66ff\u3092\u6b63\u5f53\u5316\u3067\u304d\u308b\u3002\u7c21\u7565\u5316\u3055\u308c\u305f\u540c\u7b49\u6027\u30e9\u30d9\u30eb\u3067\u306f\u306a\u304f\u3001\u4f9b\u7d66\u3055\u308c\u305f\u72b6\u614b\u3068\u8a3c\u62e0\u3092\u627f\u8a8d\u3059\u308b\u3053\u3068\u3002.<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>S45C and SAE 1045 are often treated as close carbon-steel counterparts, but a name-to-name match is not enough to approve substitution. Before changing a drawing or purchase order, compare the governing standard and edition, product form, chemistry limits, delivery condition, heat treatment, section size, and required mechanical properties. For a machined part, those details can affect cutting behavior, distortion, hardness, and the final acceptance test even when the nominal carbon range looks similar. Use the comparison to manage a specification decision, not to claim that every S45C bar is equivalent to every 1045 product. If the design depends on strength, hardness, weldability, or traceability, the actual material certificate and condition [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3590,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3571","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts\/3571","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/comments?post=3571"}],"version-history":[{"count":5,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts\/3571\/revisions"}],"predecessor-version":[{"id":3593,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts\/3571\/revisions\/3593"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/media\/3590"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/media?parent=3571"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/categories?post=3571"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/tags?post=3571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}