{"id":3500,"date":"2025-08-31T23:47:58","date_gmt":"2025-08-31T15:47:58","guid":{"rendered":"https:\/\/keep-win.com\/?p=3500"},"modified":"2025-08-31T23:47:58","modified_gmt":"2025-08-31T15:47:58","slug":"%e3%82%b3%e3%83%b3%e3%83%97%e3%83%ac%e3%83%83%e3%82%b5%e3%83%bc%e7%94%a8%e3%83%80%e3%82%af%e3%82%bf%e3%82%a4%e3%83%ab%e9%8b%b3%e9%89%84%e3%83%9d%e3%83%b3%e3%83%97-astm-a395-vs-qt450-10%e3%81%ae","status":"publish","type":"post","link":"https:\/\/www.keep-win.com\/ja\/%e3%82%b3%e3%83%b3%e3%83%97%e3%83%ac%e3%83%83%e3%82%b5%e3%83%bc%e7%94%a8%e3%83%80%e3%82%af%e3%82%bf%e3%82%a4%e3%83%ab%e9%8b%b3%e9%89%84%e3%83%9d%e3%83%b3%e3%83%97-astm-a395-vs-qt450-10%e3%81%ae\/","title":{"rendered":"\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u304a\u3088\u3073\u30dd\u30f3\u30d7\u7528\u30c0\u30af\u30bf\u30a4\u30eb\u92f3\u9244\uff1aASTM A395\u3068QT450-10\u306e\u6bd4\u8f03"},"content":{"rendered":"<h3 data-start=\"569\" data-end=\"638\">\u30c0\u30af\u30bf\u30a4\u30eb\u92f3\u9244\uff1a\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u3068\u30dd\u30f3\u30d7\u90e8\u54c1\u306e\u7406\u60f3\u7684\u306a\u9078\u629e<\/h3>\n<p data-start=\"639\" data-end=\"920\">\u7523\u696d\u6a5f\u68b0\u3067\u306f\u3001\u6750\u6599\u306e\u9078\u629e\u304c\u6027\u80fd\u3001\u4fe1\u983c\u6027\u3001\u8010\u7528\u5e74\u6570\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u6975\u5727\u4e0b\u3067\u4f5c\u52d5\u3059\u308b\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u3001\u30dd\u30f3\u30d7\u3001\u30d0\u30eb\u30d6\u3067\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u90e8\u54c1\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002 <strong data-start=\"822\" data-end=\"862\">\u30b7\u30ea\u30f3\u30c0\u30fc\u3001\u30d0\u30eb\u30d6\u30dc\u30c7\u30a3\u3001\u30d4\u30b9\u30c8\u30f3<\/strong> \u7d44\u307f\u5408\u308f\u305b\u308b\u5fc5\u8981\u304c\u3042\u308b <strong data-start=\"876\" data-end=\"917\">\u512a\u308c\u305f\u5ef6\u6027\u3092\u5099\u3048\u305f\u9ad8\u5f37\u5ea6<\/strong>.<\/p>\n<p data-start=\"922\" data-end=\"1049\">\u3053\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u5b9f\u73fe\u3059\u308b\u7d20\u6750\u306f <strong data-start=\"965\" data-end=\"981\">\u30c0\u30af\u30bf\u30a4\u30eb\u92f3\u9244<\/strong>\u7279\u306bASTM A395\u3084QT450-10\u306e\u3088\u3046\u306a\u9ad8\u4f38\u3073\u92fc\u7a2e\u306b\u9069\u3057\u3066\u3044\u308b\u3002<\/p>\n<hr data-start=\"1051\" data-end=\"1054\" \/>\n<h3 data-start=\"1056\" data-end=\"1100\">ASTM A395\uff1a\u9ad8\u5ef6\u6027\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af<\/h3>\n<p data-start=\"1101\" data-end=\"1150\">ASTM A395\u306f\u30d5\u30a7\u30e9\u30a4\u30c8\u7cfb\u30c0\u30af\u30bf\u30a4\u30eb\u92f3\u9244\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u308b\uff1a<\/p>\n<ul data-start=\"1151\" data-end=\"1462\">\n<li data-start=\"1151\" data-end=\"1237\">\n<p data-start=\"1153\" data-end=\"1237\"><strong data-start=\"1153\" data-end=\"1184\">\u9ad8\u4f38\u5ea6\uff0820%\u307e\u3067\uff09<\/strong> \u2192 \u512a\u308c\u305f\u8010\u885d\u6483\u6027\u3068\u30af\u30e9\u30c3\u30af\u9632\u6b62<\/p>\n<\/li>\n<li data-start=\"1238\" data-end=\"1462\">\n<p data-start=\"1240\" data-end=\"1259\"><strong data-start=\"1240\" data-end=\"1256\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/strong>:<\/p>\n<ul data-start=\"1262\" data-end=\"1462\">\n<li data-start=\"1262\" data-end=\"1322\">\n<p data-start=\"1264\" data-end=\"1322\">\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u30b7\u30ea\u30f3\u30c0\u30fc - \u9ad8\u5727\u30ac\u30b9\u306e\u885d\u6483\u306b\u8010\u3048\u308b<\/p>\n<\/li>\n<li data-start=\"1325\" data-end=\"1398\">\n<p data-start=\"1327\" data-end=\"1398\">\u30dd\u30f3\u30d7\u672c\u4f53\u3068\u30d0\u30eb\u30d6 - \u69cb\u9020\u7684\u5b8c\u5168\u6027\u3068\u5bc6\u9589\u6027\u3092\u78ba\u4fdd<\/p>\n<\/li>\n<li data-start=\"1401\" data-end=\"1462\">\n<p data-start=\"1403\" data-end=\"1462\">\u30d1\u30a4\u30d7\u3068\u7d99\u624b - \u66f2\u3052\u8377\u91cd\u3084\u885d\u6483\u8377\u91cd\u306b\u5bfe\u3059\u308b\u4fe1\u983c\u6027<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr data-start=\"1464\" data-end=\"1467\" \/>\n<h3 data-start=\"1469\" data-end=\"1510\">\u4e2d\u56fd\u306e\u7b49\u7d1aQT450-10 vs QT500-7<\/h3>\n<p data-start=\"1511\" data-end=\"1580\">\u4e2d\u56fd\u306e\u540c\u7b49\u306e\u30c0\u30af\u30bf\u30a4\u30eb\u9244\u30b0\u30ec\u30fc\u30c9\u306f\u3001\u4fe1\u983c\u3067\u304d\u308b\u4ee3\u66ff\u54c1\u3068\u306a\u308b\uff1a<\/p>\n<ul data-start=\"1582\" data-end=\"1967\">\n<li data-start=\"1582\" data-end=\"1798\">\n<p data-start=\"1584\" data-end=\"1598\"><strong data-start=\"1584\" data-end=\"1596\">QT450-10<\/strong><\/p>\n<ul data-start=\"1601\" data-end=\"1798\">\n<li data-start=\"1601\" data-end=\"1631\">\n<p data-start=\"1603\" data-end=\"1631\">\u5f15\u5f35\u5f37\u3055 \u2265 450 MPa<\/p>\n<\/li>\n<li data-start=\"1634\" data-end=\"1662\">\n<p data-start=\"1636\" data-end=\"1662\">\u964d\u4f0f\u5f37\u3055 \u2265 280 MPa<\/p>\n<\/li>\n<li data-start=\"1665\" data-end=\"1725\">\n<p data-start=\"1667\" data-end=\"1725\">\u4f38\u3073 \u2265 10% \u2192 \u5f37\u976d\u6027\u3001\u8010\u4e80\u88c2\u6027<\/p>\n<\/li>\n<li data-start=\"1728\" data-end=\"1798\">\n<p data-start=\"1730\" data-end=\"1798\">ASTM A3705 \u306b\u6700\u3082\u8fd1\u304f\u3001\u8010\u5727\u90e8\u54c1\u306b\u6700\u9069\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1800\" data-end=\"1967\">\n<p data-start=\"1802\" data-end=\"1815\"><strong data-start=\"1802\" data-end=\"1813\">QT500-7<\/strong><\/p>\n<ul data-start=\"1818\" data-end=\"1967\">\n<li data-start=\"1818\" data-end=\"1848\">\n<p data-start=\"1820\" data-end=\"1848\">\u5f15\u5f35\u5f37\u3055 \u2265 500 MPa<\/p>\n<\/li>\n<li data-start=\"1851\" data-end=\"1898\">\n<p data-start=\"1853\" data-end=\"1898\">\u4f38\u3073 \u2265 7% \u2192 \u3088\u308a\u5f37\u3044\u304c\u5ef6\u6027\u306f\u52a3\u308b<\/p>\n<\/li>\n<li data-start=\"1901\" data-end=\"1967\">\n<p data-start=\"1903\" data-end=\"1967\">\u2699\ufe0f \u5f37\u5ea6\u304c\u91cd\u8981\u3060\u304c\u976d\u6027\u306f\u8efd\u3044\u7528\u9014\u306b\u6700\u9069<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p data-start=\"1969\" data-end=\"2070\">\u512a\u5148\u9806\u4f4d\u3092\u3064\u3051\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408 <strong data-start=\"1998\" data-end=\"2033\">\u5ef6\u6027\u3068\u8010\u885d\u6483\u6027<\/strong>, <strong data-start=\"2035\" data-end=\"2067\">QT450-10\u306f\u7406\u60f3\u7684\u306a\u9078\u629e<\/strong>.<\/p>\n<hr data-start=\"2072\" data-end=\"2075\" \/>\n<h3 data-start=\"2077\" data-end=\"2124\">\u30ab\u30b9\u30bf\u30e0\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306bKeepwin\u3092\u9078\u3076\u7406\u7531<\/h3>\n<p data-start=\"2125\" data-end=\"2188\">\u30ad\u30fc\u30d7\u30a6\u30a3\u30f3\u3067\u306f\u3001\u7d20\u6750\u306e\u5c02\u9580\u77e5\u8b58\u3068\u7cbe\u5bc6\u88fd\u9020\u304c\u878d\u5408\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n<ul data-start=\"2190\" data-end=\"2471\">\n<li data-start=\"2190\" data-end=\"2282\">\n<p data-start=\"2192\" data-end=\"2282\"><strong data-start=\"2192\" data-end=\"2218\">\u5c02\u9580\u77e5\u8b58<\/strong>:\u4f5c\u696d\u6761\u4ef6\u306b\u57fa\u3065\u3044\u305f\u6b63\u78ba\u306a\u6750\u6599\u63a8\u5968<\/p>\n<\/li>\n<li data-start=\"2283\" data-end=\"2380\">\n<p data-start=\"2285\" data-end=\"2380\"><strong data-start=\"2285\" data-end=\"2311\">\u67d4\u8edf\u306a\u30ab\u30b9\u30bf\u30de\u30a4\u30ba<\/strong>:\u6a19\u6e96\u92f3\u9020\u54c1\u3068\u975e\u6a19\u6e96\u92f3\u9020\u54c1\u3001\u5b8c\u5168\u306a\u6a5f\u68b0\u52a0\u5de5\u80fd\u529b<\/p>\n<\/li>\n<li data-start=\"2381\" data-end=\"2471\">\n<p data-start=\"2383\" data-end=\"2471\"><strong data-start=\"2383\" data-end=\"2406\">\u5353\u8d8a\u3057\u305f\u54c1\u8cea<\/strong>:\u8010\u4e45\u6027\u3068\u6027\u80fd\u3092\u4fdd\u8a3c\u3059\u308b\u53b3\u3057\u3044\u54c1\u8cea\u7ba1\u7406<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2473\" data-end=\"2581\">\u79c1\u305f\u3061\u306f\u3001\u6b21\u306e\u3082\u306e\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002 <strong data-start=\"2484\" data-end=\"2543\">\u9ad8\u6027\u80fd\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u3001\u30dd\u30f3\u30d7\u3001\u30d0\u30eb\u30d6\u90e8\u54c1<\/strong> \u9577\u671f\u7684\u306a\u4fe1\u983c\u6027\u3092\u8003\u616e\u3057\u3066\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n<hr data-start=\"2583\" data-end=\"2586\" \/>\n<h3 data-start=\"2588\" data-end=\"2612\">\u4eca\u3059\u3050\u884c\u52d5\u3092\u8d77\u3053\u305d\u3046\uff01<\/h3>\n<p data-start=\"2613\" data-end=\"2845\">\u5fc5\u8981\u306a\u5834\u5408 <strong data-start=\"2625\" data-end=\"2683\">\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30b7\u30ea\u30f3\u30c0\u30fc\u3001\u30dd\u30f3\u30d7\u30cf\u30a6\u30b8\u30f3\u30b0\u3001\u30d0\u30eb\u30d6\u90e8\u54c1<\/strong> \u30c0\u30af\u30bf\u30a4\u30eb\u92f3\u9244\u88fd\u306a\u3089Keepwin\u306b\u3054\u9023\u7d61\u304f\u3060\u3055\u3044\u3002\u79c1\u305f\u3061\u306e <strong data-start=\"2731\" data-end=\"2762\">\u30ab\u30b9\u30bf\u30e0\u8a2d\u8a08\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/strong> \u306f\u3001\u512a\u308c\u305f\u52b9\u7387\u6027\u3001\u5f37\u976d\u6027\u3001\u64cd\u696d\u306e\u5b89\u5b9a\u6027\u3092\u9054\u6210\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>Ductile Iron: The Ideal Choice for Compressor &amp; Pump Components In industrial machinery, material selection defines performance, reliability, and service life. For compressors, pumps, and valves working under extreme pressures, components such as cylinders, valve bodies, and pistons must combine high strength with superior ductility. The material that achieves this balance is ductile iron, particularly high-elongation grades like ASTM A395 and QT450-10. ASTM A395: Benchmark of High Ductility ASTM A395 is a ferritic ductile iron known for: High elongation (up to 20%) \u2192 excellent impact resistance and crack prevention Applications: Compressor cylinders \u2013 resists high-pressure gas impacts Pump bodies &amp; valves \u2013 ensures structural integrity and tight sealing Pipes &amp; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3502,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28,29],"tags":[],"class_list":["post-3500","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-resource","category-technical-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.4 (Yoast SEO v25.4) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ductile Iron for Compressors &amp; Pumps: ASTM A395 vs QT450-10 Explained - Keepwin | Indurstrial Gas Compressor | Diaphragm Compressor | Piston Air Compressor<\/title>\n<meta name=\"description\" content=\"Discover why ductile iron, especially ASTM A395 and QT450-10, is the best material choice for compressors, pumps, and valve components requiring high strength and toughness.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.keep-win.com\/ja\/\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u7528\u30c0\u30af\u30bf\u30a4\u30eb\u92f3\u9244\u30dd\u30f3\u30d7-astm-a395-vs-qt450-10\u306e\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ductile Iron for Compressors &amp; 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