{"id":1725,"date":"2025-11-27T10:24:16","date_gmt":"2025-11-27T09:24:16","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=1725"},"modified":"2026-01-30T03:09:10","modified_gmt":"2026-01-30T02:09:10","slug":"nickel-alloys-for-corrosive-environments-selection-guide-2025","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/ja\/nickel-alloys-for-corrosive-environments-selection-guide-2025\/","title":{"rendered":"\u8150\u98df\u74b0\u5883\u7528\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u30bb\u30ec\u30af\u30b7\u30e7\u30f3\u30ac\u30a4\u30c9(2025)"},"content":{"rendered":"<blockquote>\n<section class=\"article135\" data-role=\"outer\">\n<section class=\"_135editor\" data-role=\"paragraph\"><\/section>\n<p>\u7523\u696d\u7528\u88fd\u9020\u696d\u3067\u306f\u3001\u8150\u98df\u306f\u5358\u306a\u308b\u30e1\u30f3\u30c6\u30ca\u30f3 \u30b9\u306e\u554f\u984c\u3067\u306f\u306a\u304f\u3001\u81f4\u547d\u7684\u306a\u30ea\u30b9\u30af\u3067\u3042\u308b\u3002316L\u30b9\u30c6\u30f3\u30ec \u30b9\u92fc\u306f\u3001\u6e29\u548c\u306a\u6761\u4ef6\u4e0b\u3067\u306f\u696d\u754c\u6a19\u6e96\u306e\u5f79\u5272\u3092\u679c\u305f \u3059\u304c\u3001\u9084\u5143\u6027\u9178\u3001\u9ad8\u6e29\u306e\u5869\u5316\u7269\u3001\u30b5\u30ef\u30fc\u30ac\u30b9\u306b\u66dd\u3055\u308c \u308b\u3068\u3001\u983b\u7e41\u306b\u7834\u640d\u3057\u307e\u3059\u3002.<\/p>\n<\/section>\n<\/blockquote>\n<section class=\"article135\" data-role=\"outer\">\n<section class=\"_135editor\" data-role=\"paragraph\">\n<p data-path-to-node=\"10\">\u3053\u306e\u3088\u3046\u306a\u53b3\u3057\u3044\u72b6\u6cc1\u306b\u76f4\u9762\u3057\u3066\u3044\u308b\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u305f\u3081\u306b\u3001, <strong><a href=\"https:\/\/www.nickelcasting.com\/pt\/ligas-de-niquel\/\">\u30cb\u30c3\u30b1\u30eb\u5408\u91d1<\/a> \u8150\u98df\u6027\u74b0\u5883\u7528<\/strong> \u306f\u3001\u9577\u671f\u7684\u306a\u8cc7\u7523\u4fdd\u5168\u306e\u305f\u3081\u306e\u552f\u4e00\u306e\u5b9f\u884c\u53ef\u80fd\u306a\u9053\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u9244\u30d9\u30fc\u30b9\u306e\u5408\u91d1\u3068\u306f\u7570\u306a\u308a\u3001\u30cb\u30c3\u30b1\u30eb\u306f\u72ec\u81ea\u306e\u71b1\u529b\u5b66\u7684\u5b89\u5b9a\u6027\u3092\u6301\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u8106\u3044\u76f8\u3092\u5f62\u6210\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u5927\u91cf\u306e\u5408\u91d1\u5143\u7d20\uff08\u30e2\u30ea\u30d6\u30c7\u30f3\u3001\u30af\u30ed\u30e0\u3001\u9285\u306a\u3069\uff09\u3092\u4fdd\u6301\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n<p data-path-to-node=\"11\">\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u6280\u8853\u7684\u306a\u968e\u5c64\u3092\u7d30\u5206\u5316\u3057\u3001\u7279\u5b9a\u306e\u8150\u98df\u554f\u984c\u306b\u9069\u5207\u306a\u6750\u6599\u3092\u9069\u5408\u3055\u305b\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002.<\/p>\n<p data-path-to-node=\"11\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-1726 aligncenter\" src=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/5.jpg\" alt=\"\" width=\"1200\" height=\"675\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/5.jpg 1200w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/5-300x169.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/5-1024x576.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/5-768x432.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/5-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h2>1.\u5869\u5316\u7269\u6eb6\u6db2\u30e2\u30cd\u30eb400 (UNS N04400)<\/h2>\n<p data-path-to-node=\"13\"><strong>\u6700\u9069\uff1a<\/strong> \u6d77\u6d0b\u5de5\u5b66\u3001\u30d5\u30c3\u5316\u6c34\u7d20\u9178\u3001\u6025\u901f\u306b\u6d41\u308c\u308b\u6d77\u6c34\u3002.<\/p>\n<p data-path-to-node=\"14\">\u4e3b\u306a\u8105\u5a01\u304c\u5869\u3001\u7279\u306b\u9ad8\u901f\u306e\u6d77\u6c34\u3067\u3042\u308b\u5834\u5408......\u3002<strong>\u30e2\u30cd\u30eb400<\/strong> \u306f\u696d\u754c\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3067\u3059\u3002\u30cb\u30c3\u30b1\u30eb(\u7d0467%)\u3068\u9285(23%)\u306e\u56fa\u6eb6\u4f53\u4e8c\u5143\u5408\u91d1\u3067\u3001\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u306e\u4e00\u822c\u7684\u306a\u7834\u58ca\u30e2\u30fc\u30c9\u3067\u3042\u308b\u5869\u5316\u7269\u30a4\u30aa\u30f3\u5fdc\u529b\u8150\u98df\u5272\u308c(SCC)\u306b\u5bfe\u3059\u308b\u8010\u6027\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002.<\/p>\n<ul class=\"list-paddingleft-2\" data-path-to-node=\"15\">\n<li>\n<p data-path-to-node=\"15,0,0\"><strong>\u306a\u305c\u3046\u307e\u304f\u3044\u304f\u306e\u304b\uff1a<\/strong> \u9285\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u305f\u3081\u8cb4\u91d1\u5c5e\u306e\u7279\u6027\u3092\u6301\u3061\u3001\u751f\u7269\u4ed8\u7740\u3084\u6025\u6d41\u6d77\u6c34\uff08\u6700\u592740m\/s\uff09\u306b\u5bfe\u3059\u308b\u8010\u6027\u304c\u975e\u5e38\u306b\u9ad8\u3044\u3002.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"15,1,0\"><strong>\u5236\u9650\uff1a<\/strong> \u307e\u305f\u3001\u30a2\u30f3\u30e2\u30cb\u30a2\u306e\u5b58\u5728\u4e0b\u3067\u306f\u6025\u901f\u306b\u8150\u98df\u3059\u308b\u3002.<\/p>\n<\/li>\n<\/ul>\n<h2>2.\u9178\u5316\u30b7\u30fc\u30eb\u30c9\u30a4\u30f3\u30b3\u30cd\u30eb625 (UNS N06625)<\/h2>\n<p data-path-to-node=\"17\"><strong>\u6700\u9069\uff1a<\/strong> \u822a\u7a7a\u5b87\u5b99\u6392\u6c17\u30b7\u30b9\u30c6\u30e0\u3001\u5316\u5b66\u51e6\u7406\u3001\u9178\u5316\u6027\u9178\u3002.<\/p>\n<p data-path-to-node=\"18\">\u9ad8\u71b1\u3068\u8150\u98df\u6027\u9178\u5316\u304c\u6df7\u5728\u3059\u308b\u74b0\u5883\u306e\u5834\u5408\u3001, <strong><a href=\"https:\/\/www.nickelcasting.com\/pt\/ligas-de-niquel\/ligas-de-niquel-inconel\/inconel-625\/\">\u30a4\u30f3\u30b3\u30cd\u30eb625<\/a><\/strong> \u306f\u305d\u306e\u65d7\u624b\u3067\u3042\u308b\u3002\u305d\u306e\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u306f\u30e2\u30ea\u30d6\u30c7\u30f3\u3068\u30cb\u30aa\u30d6\u306b\u3088\u3063\u3066\u5f37\u5316\u3055\u308c\u3001\u71b1\u51e6\u7406\u3092\u5fc5\u8981\u3068\u305b\u305a\u306b\u9ad8\u3044\u30af\u30ea\u30fc\u30d7\u7834\u65ad\u5f37\u5ea6\u3092\u5b9f\u73fe\u3057\u3066\u3044\u308b\u3002.<\/p>\n<p data-path-to-node=\"19\">\u91cd\u8981\u306a\u3053\u3068\u306f\u3001\u30a4\u30f3\u30b3\u30cd\u30eb625\u306f\u3001\u4ee5\u4e0b\u306e\u7279\u6027\u3092\u4fdd\u6301\u3057\u3066\u3044\u308b\u3053\u3068\u3067\u3042\u308b\u3002 <strong>PREN\uff08\u8010\u5b54\u98df\u6027\u7b49\u4fa1\u6570\uff09<\/strong> \u306e\u304a\u3088\u305d46-56\u3067\u3042\u308b\u3002\u6a19\u6e96\u7684\u306a316\u30b9\u30c6\u30f3\u30ec \u30b9\u92fc\u306ePREN\u306f24\u7a0b\u5ea6\u3067\u3042\u308b\u3002\u3053\u306e\u305f\u3081\u3001\u30a2\u30ed\u30a4625\u306f\u3001\u305d\u308c\u4ee5\u4e0b\u306e\u91d1\u5c5e\u3067\u3042\u308c\u3070\u6570\u9031\u9593\u3067\u7a74\u304c\u958b\u3044\u3066\u3057\u307e\u3046\u3088\u3046\u306a\u5869\u5316\u7269\u74b0\u5883\u4e0b\u3067\u306e\u5b54\u98df\u306b\u5bfe\u3057\u3066\u3001\u4e8b\u5b9f\u4e0a\u514d\u75ab\u304c\u3042\u308b\u3002.<\/p>\n<blockquote data-path-to-node=\"20\">\n<p data-path-to-node=\"20,0\"><strong>\u30c6\u30af\u30cb\u30ab\u30eb\u30fb\u30ce\u30fc\u30c8<\/strong> \u30d1\u30a4\u30d7\u3068\u30c1\u30e5\u30fc\u30d6\u306e\u8abf\u9054\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <strong>ASTM B444<\/strong> \u9069\u5207\u306a\u7b49\u7d1a\u69cb\u6210\u3068\u30a2\u30cb\u30fc\u30ea\u30f3\u30b0\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u3002.<\/p>\n<\/blockquote>\n<h2><img decoding=\"async\" class=\"size-full wp-image-1727 aligncenter\" src=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/6.jpg\" alt=\"\" width=\"1200\" height=\"675\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/6.jpg 1200w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/6-300x169.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/6-1024x576.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/6-768x432.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2025\/11\/6-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/h2>\n<h2>3.\u7a76\u6975\u306e\u9632\u5fa1: \u30cf\u30b9\u30c6\u30ed\u30a4C-276 (UNS N10276)<\/h2>\n<p data-path-to-node=\"22\"><strong>\u6700\u9069\uff1a<\/strong> \u9084\u5143\u9178\uff08H2SO4\u3001HCl\uff09\u3001\u30b5\u30ef\u30fc\u30ac\u30b9\u3001\u5ec3\u68c4\u7269\u51e6\u7406\u3002.<\/p>\n<p data-path-to-node=\"23\">\u30d7\u30ed\u30bb\u30b9\u6d41\u4f53\u304c\u6e7f\u3063\u305f\u5869\u7d20\u30ac\u30b9\u3001\u6b21\u4e9c\u5869\u7d20\u9178\u5869\u3001\u786b\u9178\u3092\u542b\u3080\u5834\u5408\u3001\u751f\u304d\u6b8b\u308b\u7269\u8cea\u306f\u307b\u3068\u3093\u3069\u306a\u3044\u3002. <strong><a href=\"https:\/\/www.nickelcasting.com\/pt\/ligas-de-niquel\/hastelloy-nickel-alloys\/hastelloy-c-276\/\">\u30cf\u30b9\u30c6\u30ed\u30a4 C-276<\/a><\/strong> \u306f\u3001\u6700\u3082\u6c4e\u7528\u6027\u306e\u9ad8\u3044\u8010\u98df\u5408\u91d1\u3068\u3057\u3066\u5e83\u304f\u8a55\u4fa1\u3055\u308c\u3066\u3044\u308b\u3002.<\/p>\n<p data-path-to-node=\"24\">\u9ad8\u3044\u30e2\u30ea\u30d6\u30c7\u30f3\u542b\u6709\u91cf\uff0815-17%\uff09\u3068\u30bf\u30f3\u30b0\u30b9\u30c6\u30f3\u306e\u6dfb\u52a0\u306b\u3088\u308a\u3001\u4ed6\u306e\u5408\u91d1\u306e\u4e0d\u52d5\u614b\u9178\u5316\u5c64\u304c\u5265\u96e2\u3055\u308c\u308b\u3088\u3046\u306a\u53b3\u3057\u3044\u9084\u5143\u74b0\u5883\u3067\u512a\u308c\u3066\u3044\u308b\u3002.<\/p>\n<ul class=\"list-paddingleft-2\" data-path-to-node=\"25\">\n<li>\n<p data-path-to-node=\"25,0,0\"><strong>PREN\u5024\uff1a<\/strong> ~64-74\uff08\u932c\u5408\u91d1\u306e\u4e2d\u3067\u6700\u3082\u9ad8\u3044\u3002\uff09.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"25,1,0\"><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/strong> \u6392\u7159\u8131\u786b(FGD)\u30b7\u30b9\u30c6\u30e0\u306e\u30b9\u30af\u30e9\u30d0\u30fc\u3084\u3001\u30b5\u30ef\u30fc\u30ac\u30b9\u4e95\u6238\u3092\u5fc5\u8981\u3068\u3059\u308b\u5834\u5408\u306b\u3088\u304f\u6307\u5b9a\u3055\u308c\u308b\u3002 <strong>NACE MR0175<\/strong> \u786b\u5316\u7269\u5fdc\u529b\u5272\u308c\u62b5\u6297\u6027\u9069\u5408\u3002.<\/p>\n<\/li>\n<\/ul>\n<h2>4.\u8150\u98df\u901f\u5ea6\uff08mm\/\u5e74\uff09\u306e\u6bd4\u8f03<\/h2>\n<p data-path-to-node=\"27\">\u4ee5\u4e0b\u306e\u30c7\u30fc\u30bf\u306f\u3001\u5869\u9178\uff081%\u6fc3\u5ea6\uff09\u306e\u6cb8\u9a30\u306b\u304a\u3051\u308b\u6027\u80fd\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u6d6e\u304d\u5f6b\u308a\u306b\u3057\u3066\u3044\u308b\uff1a<\/p>\n<table data-path-to-node=\"28\">\n<thead>\n<tr>\n<td><strong>\u7d20\u6750<\/strong><\/td>\n<td><strong>\u8150\u98df\u901f\u5ea6\uff08mpy\uff09<\/strong><\/td>\n<td><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a55<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"28,1,0,0\"><b>316\u30b9\u30c6\u30f3\u30ec\u30b9<\/b><\/span><\/td>\n<td><span data-path-to-node=\"28,1,1,0\">&gt; 200mpy<\/span><\/td>\n<td><span data-path-to-node=\"28,1,2,0\"><b>\u6025\u901f\u306a\u6545\u969c<\/b><\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"28,2,0,0\"><b>\u30a4\u30f3\u30b3\u30cd\u30eb625<\/b><\/span><\/td>\n<td><span data-path-to-node=\"28,2,1,0\">~ 20 mpy<\/span><\/td>\n<td><span data-path-to-node=\"28,2,2,0\"><b>\u77ed\u671f\u9593\u306a\u3089\u53ef<\/b><\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"28,3,0,0\"><b>\u30cf\u30b9\u30c6\u30ed\u30a4 C-276<\/b><\/span><\/td>\n<td><span data-path-to-node=\"28,3,1,0\">&lt; 5 mpy<\/span><\/td>\n<td><span data-path-to-node=\"28,3,2,0\"><b>\u512a\u308c\u305f\u9577\u671f\u5bff\u547d<\/b><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>In industrial manufacturing, corrosion is not just a maintenance issue\u2014it is a catastrophic risk. While 316L stainless steel serves as the industry standard for mild conditions, it frequently fails when exposed to reducing acids, high-temperature chlorides, or sour gas. For engineers facing these aggressive conditions, nickel alloys for corrosive environments offer the only viable path to long-term asset integrity. Unlike iron-based alloys, nickel possesses a unique thermodynamic stability that allows it to hold large amounts of alloying elements (like molybdenum, chromium, and copper) without forming brittle phases. This guide breaks down the technical hierarchy of nickel alloys, helping you match the right material to your specific corrosion challenge. 1. The [&hellip;]<\/p>","protected":false},"author":1,"featured_media":1726,"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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