{"id":1802,"date":"2025-12-11T03:49:13","date_gmt":"2025-12-11T02:49:13","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=1802"},"modified":"2026-01-30T03:04:22","modified_gmt":"2026-01-30T02:04:22","slug":"inconel-625-vs-inconel-718","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/ja\/inconel-625-vs-inconel-718\/","title":{"rendered":"\u30a4\u30f3\u30b3\u30cd\u30eb625\u3068\u30a4\u30f3\u30b3\u30cd\u30eb718\u306e\u6bd4\u8f03"},"content":{"rendered":"<p data-path-to-node=\"6\">\u6975\u9650\u306e\u51b6\u91d1\u5b66\u306e\u9818\u57df\u3067\u3001, <b><a href=\"https:\/\/www.nickelcasting.com\/pt\/ligas-de-niquel\/ligas-de-niquel-inconel\/inconel-625\/\">\u30a4\u30f3\u30b3\u30cd\u30eb625<\/a><\/b> \u305d\u3057\u3066 <b><a href=\"https:\/\/www.nickelcasting.com\/pt\/ligas-de-niquel\/ligas-de-niquel-inconel\/inconel-718\/\">\u30a4\u30f3\u30b3\u30cd\u30eb718<\/a><\/b> \u306f\u3001\u30cb\u30c3\u30b1\u30eb\u57fa\u8d85\u5408\u91d1\u306e\u696d\u754c\u6a19\u6e96\u3067\u3042\u308b\u3002\u3053\u308c\u3089\u306f\u30cb\u30c3\u30b1\u30eb\u3068\u30af\u30ed\u30e0\u3092\u57fa\u672c\u7d44\u6210\u3068\u3057\u3066\u3044\u308b\u304c\u3001\u5fae\u7d30\u69cb\u9020\u306e\u5f37\u5316\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u7570\u306a\u308b\u305f\u3081\u3001\u7528\u9014\u306f\u5927\u304d\u304f\u7570\u306a\u308b\u3002.<\/p>\n<p data-path-to-node=\"7\">For engineers and metallurgists, the choice between these two grades is rarely about &#8220;better&#8221; or &#8220;worse&#8221;\u2014it is about optimizing for <b>\u8010\u98df\u6027<\/b> (625) \u5bfe <b>\u6a5f\u68b0\u7684\u5f37\u5ea6<\/b> (718).\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u51b6\u91d1\u5b66\u3001\u71b1\u5b89\u5b9a\u6027\u3001\u5207\u524a\u52a0\u5de5\u6027\u306e\u91cd\u8981\u306a\u9055\u3044\u3092\u5206\u6790\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h2 data-path-to-node=\"8\">\u30a4\u30f3\u30b3\u30cd\u30eb625\u3068718\u306e\u6bd4\u8f03<\/h2>\n<p data-path-to-node=\"9\">\u6839\u672c\u7684\u306a\u9055\u3044\u306f\u3001\u3053\u308c\u3089\u306e\u5408\u91d1\u304c\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u5f37\u5ea6\u3092\u5f97\u3066\u3044\u308b\u304b\u306b\u3042\u308b\u3002.<\/p>\n<ul data-path-to-node=\"10\">\n<li>\n<p data-path-to-node=\"10,0,0\"><b>\u30a4\u30f3\u30b3\u30cd\u30eb625 (UNS N06625)<\/b> \u306f\u4e3b\u306b <b>\u56fa\u6eb6\u4f53\u5f37\u5316<\/b> \u5408\u91d1\u3002\u30cb\u30c3\u30b1\u30eb-\u30af\u30ed\u30e0\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u4e2d\u306e\u30e2\u30ea\u30d6\u30c7\u30f3(Mo)\u3068\u30cb\u30aa\u30d6(Nb)\u306e\u525b\u6027\u52b9\u679c\u306b\u3088\u308a\u5f37\u5ea6\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u5408\u91d1\u306f\u3001\u305d\u306e\u7279\u6027\u3092\u5f97\u308b\u305f\u3081\u306b\u6642\u52b9\u786c\u5316\u71b1\u51e6\u7406\u3092\u5fc5\u8981\u3068\u305b\u305a\u3001\u512a\u308c\u305f\u5ef6\u6027\u3068\u6eb6\u63a5\u6027\u3092\u4fdd\u6301\u3057\u307e\u3059\u3002.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"10,1,0\"><b>\u30a4\u30f3\u30b3\u30cd\u30eb718\uff08UNS N07718\uff09<\/b> \u306f <b>\u6790\u51fa\u786c\u5316<\/b> (\u6642\u52b9\u786c\u5316\uff09\u5408\u91d1\u3067\u3042\u308b\u3002\u30cb\u30aa\u30d6\u3068\u3068\u3082\u306b\u30c1\u30bf\u30f3\uff08Ti\uff09\u3068\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\uff08Al\uff09\u3092\u52a0\u3048\u308b\u3053\u3068\u3067\u3001\u30ac\u30f3\u30de\u30fb\u30c0\u30d6\u30eb\u30fb\u30d7\u30e9\u30a4\u30e0\uff08Gamma Double Prime\uff09()\u3092\u5f62\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<span class=\"math-inline\" data-math=\"\\gamma''\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">\u2032\u2032<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>)\u3092\u6c88\u6bbf\u3055\u305b\u308b(<span class=\"math-inline\" data-math=\"Ni_3Nb\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">N<\/span><span class=\"mord\"><span class=\"mord mathnormal\">i<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">3<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><span class=\"mord mathnormal\">N<\/span><span class=\"mord mathnormal\">b<\/span><\/span><\/span><\/span><\/span>)\u3092\u71b1\u51e6\u7406\u3059\u308b\u3002\u3053\u306e\u5fae\u7d30\u69cb\u9020\u306b\u3088\u308a\u3001\u6975\u3081\u3066\u9ad8\u3044\u964d\u4f0f\u5f37\u5ea6\u304c\u5f97\u3089\u308c\u308b\u3002.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"11\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-1803\" src=\"http:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/45.jpg\" alt=\"\" width=\"1024\" height=\"572\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/45.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/45-300x168.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/45-768x429.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/45-18x10.jpg 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/h3>\n<h3 data-path-to-node=\"11\">\u5316\u5b66\u7d44\u6210\u306e\u9055\u3044<\/h3>\n<table data-path-to-node=\"12\">\n<thead>\n<tr>\n<td><strong>\u30a8\u30ec\u30e1\u30f3\u30c8<\/strong><\/td>\n<td><strong>\u30a4\u30f3\u30b3\u30cd\u30eb625\uff08\u91cd\u91cf%\uff09<\/strong><\/td>\n<td><strong>\u30a4\u30f3\u30b3\u30cd\u30eb718\uff08\u91cd\u91cf%\uff09<\/strong><\/td>\n<td><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"12,1,0,0\"><b>\u30cb\u30c3\u30b1\u30eb\uff08Ni\uff09<\/b><\/span><\/td>\n<td><span data-path-to-node=\"12,1,1,0\">~58%\uff08\u6700\u5c0f\uff09<\/span><\/td>\n<td><span data-path-to-node=\"12,1,2,0\">~50 &#8211; 55%<\/span><\/td>\n<td><span data-path-to-node=\"12,1,3,0\">625\u306fNi\u304c\u9ad8\u304f\u8010\u98df\u6027\u306b\u512a\u308c\u308b\u3002.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"12,2,0,0\"><b>\u30af\u30ed\u30e0\uff08Cr\uff09<\/b><\/span><\/td>\n<td><span data-path-to-node=\"12,2,1,0\">20 &#8211; 23%<\/span><\/td>\n<td><span data-path-to-node=\"12,2,2,0\">17 &#8211; 21%<\/span><\/td>\n<td><span data-path-to-node=\"12,2,3,0\">\u3069\u3061\u3089\u3082\u8010\u9178\u5316\u6027\u306b\u512a\u308c\u3066\u3044\u308b\u3002.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"12,3,0,0\"><b>\u30e2\u30ea\u30d6\u30c7\u30f3 (Mo)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"12,3,1,0\"><b>8 &#8211; 10%<\/b><\/span><\/td>\n<td><span data-path-to-node=\"12,3,2,0\">2.8 &#8211; 3.3%<\/span><\/td>\n<td><span data-path-to-node=\"12,3,3,0\"><b>\u91cd\u8981\u306a\u9055\u3044<\/b> 625\u306fMo\u304c\u9ad8\u304f\u3001\u8010\u5b54\u98df\u6027\u306b\u512a\u308c\u3066\u3044\u308b\u3002.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"12,4,0,0\"><b>\u30cb\u30aa\u30d6<\/b><\/span><\/td>\n<td><span data-path-to-node=\"12,4,1,0\">3.15 &#8211; 4.15%<\/span><\/td>\n<td><span data-path-to-node=\"12,4,2,0\"><b>4.75 &#8211; 5.5%<\/b><\/span><\/td>\n<td><span data-path-to-node=\"12,4,3,0\">718\u306eNb\u304c\u9ad8\u3044\u307b\u3069\u3001\u6790\u51fa\u786c\u5316\u53cd\u5fdc\u304c\u4fc3\u9032\u3055\u308c\u308b\u3002.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"12,5,0,0\"><b>\u30c1\u30bf\u30f3\/\u30a2\u30eb\u30df\u30cb\u30a6\u30e0<\/b><\/span><\/td>\n<td><span data-path-to-node=\"12,5,1,0\">&lt; 0.4%<\/span><\/td>\n<td><span data-path-to-node=\"12,5,2,0\"><b>Ti: 0.65-1.15% \/ Al: 0.2-0.8%<\/b><\/span><\/td>\n<td><span data-path-to-node=\"12,5,3,0\">Essential for 718&#8217;s age-hardening process.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u6a5f\u68b0\u7684\u7279\u6027\uff08\u6a19\u6e96\u5ba4\u6e29\uff09<\/h3>\n<table data-path-to-node=\"14\">\n<thead>\n<tr>\n<td><strong>\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong><\/td>\n<td><strong>\u30a4\u30f3\u30b3\u30cd\u30eb625 (\u30a2\u30cb\u30fc\u30eb\u51e6\u7406)<\/strong><\/td>\n<td><strong>\u30a4\u30f3\u30b3\u30cd\u30eb718\uff08\u6eb6\u4f53\u5316\uff0b\u6642\u52b9\u51e6\u7406\uff09<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"14,1,0,0\"><b>\u964d\u4f0f\u5f37\u3055\uff080.2%\u30aa\u30d5\u30bb\u30c3\u30c8\uff09<\/b><\/span><\/td>\n<td><span data-path-to-node=\"14,1,1,0\">414 &#8211; 650 MPa<\/span><\/td>\n<td><span data-path-to-node=\"14,1,2,0\"><b>1034 &#8211; 1100 MPa<\/b><\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"14,2,0,0\"><b>\u5f15\u5f35\u5f37\u5ea6<\/b><\/span><\/td>\n<td><span data-path-to-node=\"14,2,1,0\">827 &#8211; 1000 MPa<\/span><\/td>\n<td><span data-path-to-node=\"14,2,2,0\"><b>1240 &#8211; 1350 MPa<\/b><\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"14,3,0,0\"><b>\u786c\u5ea6\uff08\u30ed\u30c3\u30af\u30a6\u30a7\u30eb\uff09<\/b><\/span><\/td>\n<td><span data-path-to-node=\"14,3,1,0\">145 &#8211; 220 HB<\/span><\/td>\n<td><span data-path-to-node=\"14,3,2,0\">331 &#8211; 444 HB (36-44 HRC)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"14,4,0,0\"><b>\u4f38\u3073<\/b><\/span><\/td>\n<td><span data-path-to-node=\"14,4,1,0\">30 &#8211; 60% (High Ductility)<\/span><\/td>\n<td><span data-path-to-node=\"14,4,2,0\">12 &#8211; 21%<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p data-path-to-node=\"15\"><b>\u8a55\u6c7a\uff1a<\/b> \u6975\u7aef\u306a\u8377\u91cd\u4e0b\u3067\u306e\u69cb\u9020\u525b\u6027\u304c\u8981\u6c42\u3055\u308c\u308b\u7528\u9014\u3067\u306f\u3001\u30a4\u30f3\u30b3\u30cd\u30eb718\u306f625\u306e\u7d042\u500d\u306e\u964d\u4f0f\u5f37\u5ea6\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n<h2 data-path-to-node=\"16\">\u30a4\u30f3\u30b3\u30cd\u30eb625\u3068718\u306e\u9ad8\u6e29\u6027\u80fd\u6bd4\u8f03<\/h2>\n<p data-path-to-node=\"17\">Defining &#8220;high temperature&#8221; is critical when choosing between these alloys, as their performance curves diverge significantly past <b>650\u00b0C<\/b>.<\/p>\n<h3 data-path-to-node=\"18\">1.\u30af\u30ea\u30fc\u30d7\u7834\u58ca\u3068\u5f37\u5ea6\u5b89\u5b9a\u6027<\/h3>\n<p data-path-to-node=\"19\">\u30a4\u30f3\u30b3\u30cd\u30eb718\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u9ad8\u5fdc\u529b\u7528\u9014\u306b\u6700\u9069\u3067\u3059\u3002 <b>700\u00b0C<\/b>. .\u3053\u306e\u7bc4\u56f2\u5185\u3067\u3042\u308c\u3070 <span class=\"math-inline\" data-math=\"\\gamma''\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">\u2032\u2032<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u6790\u51fa\u7269\u306f\u8ee2\u4f4d\u306e\u79fb\u52d5\u3092\u52b9\u679c\u7684\u306b\u30d6\u30ed\u30c3\u30af\u3057\u3001\u30af\u30ea\u30fc\u30d7\u3092\u9632\u6b62\u3059\u308b\u3002\u3057\u304b\u3057\u3001700\u2103\u3092\u8d85\u3048\u308b\u3068\u3001\u3053\u308c\u3089\u306e\u6790\u51fa\u7269\u306f\u4e0d\u5b89\u5b9a\u306b\u306a\u308a\u3001\u7c97\u5927\u5316\u3057\u3066\u6a5f\u68b0\u7684\u5f37\u5ea6\u306e\u6025\u6fc0\u306a\u4f4e\u4e0b\u3092\u5f15\u304d\u8d77\u3053\u3059\u3002.<\/p>\n<h3 data-path-to-node=\"20\">2.\u9178\u5316\u304a\u3088\u3073\u71b1\u5b89\u5b9a\u6027<\/h3>\n<p data-path-to-node=\"21\">\u30a4\u30f3\u30b3\u30cd\u30eb625\u306f\u3001\u8d85\u9ad8\u6e29\uff08\u6700\u5927 <b>982\u00b0C \/ 1800\u00b0F<\/b>).\u6790\u51fa\u7269\u3067\u306f\u306a\u304f\u56fa\u6eb6\u4f53\u5f37\u5316\u306b\u4f9d\u5b58\u3059\u308b\u305f\u3081\u3001718\u306e\u3088\u3046\u306a\u7c97\u5927\u5316\u306e\u554f\u984c\u306f\u306a\u3044\u3002\u7121\u8ca0\u8377\u307e\u305f\u306f\u6975\u7aef\u306a\u71b1\u306b\u3055\u3089\u3055\u308c\u308b\u5fdc\u529b\u306e\u4f4e\u3044\u90e8\u54c1\uff08\u6392\u6c17\u30c0\u30af\u30c8\u3084\u30d5\u30ec\u30a2\u30b9\u30bf\u30c3\u30af\u306a\u3069\uff09\u306b\u306f\u3001625\u304c\u3088\u308a\u5b89\u5168\u306a\u9078\u629e\u80a2\u3067\u3059\u3002.<\/p>\n<h3 data-path-to-node=\"22\">3.\u6975\u4f4e\u6e29\u6027\u80fd<\/h3>\n<p data-path-to-node=\"23\">\u3069\u3061\u3089\u306e\u5408\u91d1\u3082\u6975\u4f4e\u6e29\u7528\u3068\u3057\u3066\u512a\u308c\u3066\u3044\u308b\u304c\u3001\u30a4\u30f3\u30b3\u30cd\u30eb718\u306f\u6975\u4f4e\u6e29\u7528\u30dc\u30eb\u30c8\u3068\u3057\u3066\u597d\u307e\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3002 <a href=\"https:\/\/www.nickelcasting.com\/pt\/product-forms\/fasteners\/\">\u30d5\u30a1\u30b9\u30ca\u30fc<\/a> \u7d76\u5bfe\u96f6\u5ea6\u306b\u8fd1\u3044\u6e29\u5ea6\u3067\u3082\u8106\u304f\u306a\u3089\u305a\u3001\u9ad8\u3044\u5f15\u5f35\u5f37\u5ea6\u3092\u4fdd\u3064\u304b\u3089\u3060\u3002.<\/p>\n<h2 data-path-to-node=\"24\">\u30a4\u30f3\u30b3\u30cd\u30eb625 vs 718 \u9078\u3073\u65b9<\/h2>\n<p data-path-to-node=\"25\">\u8abf\u9054\u6c7a\u5b9a\u3092\u5408\u7406\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e3\u3064\u306e\u5236\u7d04\u3092\u8a55\u4fa1\u3059\u308b\uff1a<\/p>\n<p data-path-to-node=\"25\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-1804\" src=\"http:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/46.jpg\" alt=\"\" width=\"1024\" height=\"572\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/46.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/46-300x168.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/46-768x429.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/12\/46-18x10.jpg 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h3 data-path-to-node=\"26\">\u30b7\u30ca\u30ea\u30aa A\uff1a\u6975\u5ea6\u306e\u8150\u98df\uff08\u6d77\u6d0b\u304a\u3088\u3073\u5316\u5b66\uff09<\/h3>\n<p data-path-to-node=\"27\"><b>\u30a4\u30f3\u30b3\u30cd\u30eb625\u3092\u304a\u9078\u3073\u304f\u3060\u3055\u3044\u3002.<\/b> \u9ad8\u3044\u30e2\u30ea\u30d6\u30c7\u30f3\u542b\u6709\u91cf(9%)\u306b\u3088\u308a\u3001625\u306e\u8010\u5b54\u98df\u6027\u7b49\u4fa1\u6570(PREN)\u306f718\u3088\u308a\u304b\u306a\u308a\u9ad8\u3044\u3002\u5869\u5316\u7269\u30a4\u30aa\u30f3\u306b\u3088\u308b\u5fdc\u529b\u8150\u98df\u5272\u308c\u306b\u306f\u307b\u3068\u3093\u3069\u5f71\u97ff\u3055\u308c\u307e\u305b\u3093\u3002.<\/p>\n<ul data-path-to-node=\"28\">\n<li>\n<p data-path-to-node=\"28,0,0\"><i>\u4ee3\u8868\u7684\u306a\u7528\u9014<\/i> \u6d77\u5e95\u914d\u7ba1\u3001\u9178\u51e6\u7406\u306e\u71b1\u4ea4\u63db\u5668\u3001\u6d77\u8ecd\u306e\u6392\u6c17\u30b7\u30b9\u30c6\u30e0\u3002.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"29\">\u30b7\u30ca\u30ea\u30aaB\uff1a\u9ad8\u3044\u9759\u7684\uff0f\u5468\u671f\u7684\u8ca0\u8377\uff08\u822a\u7a7a\u5b87\u5b99\u3068\u30a8\u30cd\u30eb\u30ae\u30fc\uff09<\/h3>\n<p data-path-to-node=\"30\"><b>\u30a4\u30f3\u30b3\u30cd\u30eb718\u3092\u304a\u9078\u3073\u304f\u3060\u3055\u3044\u3002.<\/b> \u90e8\u54c1\u304c\u5909\u5f62\u3059\u308b\u3053\u3068\u306a\u304f\u9ad8\u56de\u8ee2\u3084\u5727\u529b\u306b\u8010\u3048\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u5834\u5408\u3001718\u306e\u964d\u4f0f\u5f37\u5ea6\u306f\u8b72\u308c\u306a\u3044\u3002.<\/p>\n<ul data-path-to-node=\"31\">\n<li>\n<p data-path-to-node=\"31,0,0\"><i>\u4ee3\u8868\u7684\u306a\u7528\u9014<\/i> \u30ac\u30b9\u30bf\u30fc\u30d3\u30f3\u30d6\u30ec\u30fc\u30c9\u3001\u30bf\u30fc\u30dc\u30c1\u30e3\u30fc\u30b8\u30e3\u30fc\u30ed\u30fc\u30bf\u30fc\u3001\u9ad8\u5727\u30d0\u30eb\u30d6\u3001\u30ed\u30b1\u30c3\u30c8\u30a8\u30f3\u30b8\u30f3\u306e\u30b9\u30e9\u30b9\u30c8\u30c1\u30e3\u30f3\u30d0\u30fc\u3002.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"32\">\u30b7\u30ca\u30ea\u30aaC\uff1a\u52a0\u5de5\u3068\u6eb6\u63a5\u6027<\/h3>\n<p data-path-to-node=\"33\"><b>\u30a4\u30f3\u30b3\u30cd\u30eb625\u3092\u304a\u9078\u3073\u304f\u3060\u3055\u3044\u3002.<\/b> Inconel 718 is susceptible to &#8220;strain-age cracking&#8221; during post-weld heat treatment if not handled precisely. In contrast, Inconel 625 is one of the most weldable superalloys available; it is resistant to intergranular cracking and requires no post-weld aging to restore corrosion resistance.<\/p>\n<h2 data-path-to-node=\"35\">\u95a2\u9023Q&amp;A<\/h2>\n<p data-path-to-node=\"36\"><b>1.\u30a4\u30f3\u30b3\u30cd\u30eb625\u3068718\u3067\u306f\u3001\u3069\u3061\u3089\u306e\u5408\u91d1\u306e\u65b9\u304c\u52a0\u5de5\u304c\u96e3\u3057\u3044\u3067\u3059\u304b\uff1f<\/b> \u30a4\u30f3\u30b3\u30cd\u30eb718\u306f\u4e00\u822c\u306b\u52a0\u5de5\u304c\u96e3\u3057\u3044\u3002\u6790\u51fa\u786c\u5316\u6027\u306e\u305f\u3081\u3001\u5207\u524a\u52a0\u5de5\u4e2d\u306b\u6025\u901f\u306b\u786c\u5316\u3057\u3001\u713c\u920d\u3057\u305f\u30a4\u30f3\u30b3\u30cd\u30eb625\u306b\u6bd4\u3079\u3066\u5207\u524a\u62b5\u6297\u304c\u9ad8\u304f\u306a\u308a\u3001\u5de5\u5177\u5bff\u547d\u304c\u77ed\u304f\u306a\u308b\u3002.<\/p>\n<p data-path-to-node=\"37\"><b>2.\u30a4\u30f3\u30b3\u30cd\u30eb625\u306f\u30a4\u30f3\u30b3\u30cd\u30eb718\u306e\u6eb6\u63a5\u7528\u6eb6\u52a0\u6750\u3068\u3057\u3066\u4f7f\u7528\u3067\u304d\u307e\u3059\u304b\uff1f<\/b> \u30a4\u30f3\u30b3\u30cd\u30eb625 \u6eb6\u52a0\u6750 (ERNiCrMo-3) \u306f\u3001\u30a4\u30f3\u30b3 \u30cd\u30eb718\u90e8\u54c1\u306e\u6eb6\u63a5\u306b\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u304c\u3001\u7279\u306b \u6eb6\u63a5\u90e8\u306b\u9ad8\u3044\u5ef6\u6027\u3068\u8010\u98df\u6027\u304c\u8981\u6c42\u3055\u308c\u3001\u71b1\u5f71\u97ff\u90e8 (HAZ) \u3067\u306e\u5272\u308c\u3092\u9632\u6b62\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002.<\/p>\n<p data-path-to-node=\"38\"><b>3.\u30a4\u30f3\u30b3\u30cd\u30eb718\u306f\u78c1\u6027\u3067\u3059\u304b\uff1f<\/b> \u30a4\u30f3\u30b3\u30cd\u30eb625\u3082718\u3082\u975e\u78c1\u6027\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u6fc0\u3057\u3044\u51b7\u9593\u52a0\u5de5\u3084\u7279\u5b9a\u306e\u71b1\u51e6\u7406\u306b\u3088\u3063\u3066\u3001\u3054\u304f\u308f\u305a\u304b\u306a\u900f\u78c1\u7387\u304c\u8a98\u767a\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u307b\u3068\u3093\u3069\u306e\u5de5\u5b66\u7684\u76ee\u7684\u3067\u306f\u975e\u78c1\u6027\u3068\u307f\u306a\u3055\u308c\u307e\u3059\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>In the realm of extreme metallurgy, Inconel 625 and Inconel 718 stand as the industry standards for nickel-based superalloys. While they share a base composition of nickel and chromium, their distinct microstructural strengthening mechanisms dictate vastly different applications. For engineers and metallurgists, the choice between these two grades is rarely about &#8220;better&#8221; or &#8220;worse&#8221;\u2014it is about optimizing for corrosion resistance (625) versus mechanical strength (718). This guide analyzes the critical distinctions in metallurgy, thermal stability, and machinability. Inconel 625 vs 718 Comparison The fundamental difference lies in how these alloys achieve their strength. Inconel 625 (UNS N06625) is primarily a solid-solution strengthened alloy. It derives its strength from the stiffening [&hellip;]<\/p>","protected":false},"author":1,"featured_media":1803,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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superalloys."],"_yoast_wpseo_linkdex":["73"],"_yoast_wpseo_content_score":["90"],"_yoast_wpseo_estimated-reading-time-minutes":["5"],"rank_math_primary_category":["3"],"rank_math_description":["In the realm of extreme metallurgy, Inconel 625 and Inconel 718 stand as the industry standards for nickel-based superalloys."],"rank_math_focus_keyword":["Inconel 625 vs Inconel 718"],"rank_math_news_sitemap_robots":["index"],"rank_math_robots":["a:1:{i:0;s:5:\"index\";}"],"rank_math_seo_score":["59"],"rank_math_internal_links_processed":["1"],"ilj_blacklistdefinition":["a:0:{}"],"ilj_linkdefinition":["a:1:{i:0;s:26:\"Inconel 625 vs Inconel 718\";}"],"astra-migrate-meta-layouts":["set"],"_uag_page_assets":["a:9:{s:3:\"css\";s:263:\".uag-blocks-common-selector{z-index:var(--z-index-desktop) !important}@media (max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media (max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) 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the realm of extreme metallurgy, Inconel 625 and Inconel 718 stand as the industry standards for nickel-based superalloys. While they share a base composition of nickel and chromium, their distinct microstructural strengthening mechanisms dictate vastly different applications. For engineers and metallurgists, the choice between these two grades is rarely about &#8220;better&#8221; or &#8220;worse&#8221;\u2014it is&hellip;","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/1802","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/comments?post=1802"}],"version-history":[{"count":2,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/1802\/revisions"}],"predecessor-version":[{"id":2552,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/1802\/revisions\/2552"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/media\/1803"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/media?parent=1802"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/categories?post=1802"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/tags?post=1802"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}