{"id":2430,"date":"2026-01-17T08:53:10","date_gmt":"2026-01-17T07:53:10","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=2430"},"modified":"2026-01-30T03:02:01","modified_gmt":"2026-01-30T02:02:01","slug":"hastelloy-b2-vs-hastelloy-c276","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/ja\/hastelloy-b2-vs-hastelloy-c276\/","title":{"rendered":"\u30cf\u30b9\u30c6\u30ed\u30a4B2\u3068\u30cf\u30b9\u30c6\u30ed\u30a4C276\u306e\u6bd4\u8f03"},"content":{"rendered":"

\u30cf\u30a4\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u4e16\u754c \u30cb\u30c3\u30b1\u30eb\u5408\u91d1<\/a>, \u30cf\u30b9\u30c6\u30ed\u30a4B2(UNS N10665)\u3068\u30cf\u30b9\u30c6\u30ed\u30a4C276(UNS N10276)\u306e\u3069\u3061\u3089\u3092\u9078\u629e\u3059\u308b\u304b\u306f\u300110\u5e74\u4ee5\u4e0a\u4f7f\u7528\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u306e\u5206\u304b\u308c\u76ee\u3068\u306a\u308a\u307e\u3059\u3002\u3069\u3061\u3089\u3082\u30cf\u30b9\u30c6\u30ed\u30a4\u30d5\u30a1\u30df\u30ea\u30fc\u306b\u5c5e\u3057\u307e\u3059\u304c\u3001\u5316\u5b66\u7684DNA\u306b\u3088\u308a\u8150\u98df\u6027\u5a92\u4f53\u306b\u5bfe\u3059\u308b\u53cd\u5fdc\u306f\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u5341\u5206\u306a\u60c5\u5831\u3092\u5f97\u305f\u4e0a\u3067\u6c7a\u65ad\u3067\u304d\u308b\u3088\u3046\u3001\u6280\u8853\u7684\u306a\u30cb\u30e5\u30a2\u30f3\u30b9\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002.<\/p>\n

\"\"<\/p>\n

B2\u3068C276\u306e\u6bd4\u8f03<\/h2>\n

\u3053\u306e2\u3064\u306e\u5408\u91d1\u306e\u57fa\u672c\u7684\u306a\u9055\u3044\u306f\u3001\u305d\u306e\u70b9\u306b\u3042\u308b\u3002 \u30af\u30ed\u30e0\uff08Cr\uff09<\/b> \u306e\u542b\u6709\u91cf\u3067\u3042\u308b\u3002\u30cf\u30b9\u30c6\u30ed\u30a4B2\u306f\u3001\u57fa\u672c\u7684\u306b\u30af\u30ed\u30e0\u3092\u307b\u3068\u3093\u3069\u542b\u307e\u306a\u3044\u30cb\u30c3\u30b1\u30eb-\u30e2\u30ea\u30d6\u30c7\u30f3\u5408\u91d1\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001C276\u306f\u30bf\u30f3\u30b0\u30b9\u30c6\u30f3\u3092\u6dfb\u52a0\u3057\u305f\u30cb\u30c3\u30b1\u30eb-\u30e2\u30ea\u30d6\u30c7\u30f3-\u30af\u30ed\u30e0\u5408\u91d1\u3067\u3042\u308b\u3002.<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u30a8\u30ec\u30e1\u30f3\u30c8<\/strong><\/td>\n\u30cf\u30b9\u30c6\u30ed\u30a4B2\uff08\u4ee3\u8868%\uff09<\/strong><\/td>\n\u30cf\u30b9\u30c6\u30ed\u30a4C276\uff08\u4ee3\u8868%\uff09<\/strong><\/td>\n<\/tr>\n<\/thead>\n
\u30cb\u30c3\u30b1\u30eb\uff08Ni\uff09<\/b><\/span><\/td>\n\u30d0\u30e9\u30f3\u30b9\uff08\u7d0468%\uff09<\/span><\/td>\n\u30d0\u30e9\u30f3\u30b9\uff08\u7d0457%\uff09<\/span><\/td>\n<\/tr>\n
\u30e2\u30ea\u30d6\u30c7\u30f3 (Mo)<\/b><\/span><\/td>\n26.0 - 30.0<\/span><\/td>\n15.0 - 17.0<\/span><\/td>\n<\/tr>\n
\u30af\u30ed\u30e0\uff08Cr\uff09<\/b><\/span><\/td>\n\u6700\u59271.0<\/span><\/td>\n14.5 - 16.5<\/span><\/td>\n<\/tr>\n
\u9244\uff08Fe\uff09<\/b><\/span><\/td>\n\u6700\u59272.0<\/span><\/td>\n4.0 - 7.0<\/span><\/td>\n<\/tr>\n
\u30bf\u30f3\u30b0\u30b9\u30c6\u30f3\uff08W\uff09<\/b><\/span><\/td>\n–<\/span><\/td>\n3.0 - 4.5<\/span><\/td>\n<\/tr>\n
\u30b3\u30d0\u30eb\u30c8<\/b><\/span><\/td>\n\u6700\u59271.0<\/span><\/td>\n\u6700\u59272.5<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u30cf\u30b9\u30c6\u30ed\u30a4B2<\/b> \u306f\u3001\u5869\u9178\u306b\u5bfe\u3059\u308b\u6975\u7aef\u306a\u8010\u6027\u306e\u305f\u3081\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u9ad8\u3044\u30e2\u30ea\u30d6\u30c7\u30f3\u542b\u6709\u91cf\u306f\u3001\u9ad8\u6e29\u9084\u5143\u74b0\u5883\u306b\u304a\u3044\u3066\u69cb\u9020\u7684\u5b8c\u5168\u6027\u3092\u63d0\u4f9b\u3059\u308b\u3002\u3057\u304b\u3057\u3001\u30af\u30ed\u30e0\u304c\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u5fae\u91cf\u306e\u9178\u5316\u6027\u6c5a\u67d3\u7269\u8cea\u306b\u5bfe\u3057\u3066\u3082\u8106\u5f31\u3067\u3059\u3002.<\/p>\n

\u30cf\u30b9\u30c6\u30ed\u30a4 C276<\/b> is widely considered the “versatile” alloy. The 16% chromium content creates a passive oxide film that protects the metal from oxidizing salts and gases, while the molybdenum and tungsten provide exceptional resistance to pitting and crevice corrosion in chloride-rich environments.<\/p>\n

\u30cf\u30b9\u30c6\u30ed\u30a4B2\u3068C276\u306e\u6bd4\u8f03 \u9084\u5143\u6027\u74b0\u5883\u3068\u9178\u5316\u6027\u74b0\u5883<\/h2>\n

B2\u3068C276\u3092\u6bd4\u8f03\u3059\u308b\u969b\u306b\u306f\u3001\u30d7\u30ed\u30bb\u30b9\u6d41\u306e\u5316\u5b66\u7684\u6027\u8cea\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3042\u308b\u3002.<\/p>\n

    \n
  • \n

    \u74b0\u5883\u3092\u6e1b\u3089\u3059\uff1a<\/b> \u30cf\u30b9\u30c6\u30ed\u30a4B2\u306f\u3001\u7279\u306b\u4ee5\u4e0b\u306e\u6fc3\u5ea6\u3067\u3001\u8ab0\u3082\u304c\u8a8d\u3081\u308b\u738b\u8005\u3067\u3042\u308b\u3002 \u5869\u9178 (HCl)<\/b> \u6cb8\u70b9\u307e\u3067\u306e\u6e29\u5ea6\u3067\u3002\u307e\u305f\u3001\u9084\u5143\u6761\u4ef6\u4e0b\u306e\u7d14\u7c8b\u306a\u786b\u9178\u3084\u30ea\u30f3\u9178\u3067\u3082\u975e\u5e38\u306b\u512a\u308c\u305f\u6027\u80fd\u3092\u767a\u63ee\u3057\u307e\u3059\u3002\u30af\u30ed\u30e0\u3092\u6b20\u3044\u3066\u3044\u308b\u305f\u3081\u3001\u9178\u5316\u4fdd\u8b77\u5c64\u3092\u5f62\u6210\u305b\u305a\u3001\u30e2\u30ea\u30d6\u30c7\u30f3\u304c\u9084\u5143\u6027\u9178\u30a4\u30aa\u30f3\u306b\u5bfe\u3057\u3066\u76f4\u63a5\u50cd\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u3002.<\/p>\n<\/li>\n

  • \n

    \u9178\u5316\u74b0\u5883\uff1a<\/b> \u30cf\u30b9\u30c6\u30ed\u30a4B2\u304c\u5931\u6557\u3057\u3001C276\u304c\u8f1d\u304f\u306e\u306f\u3053\u306e\u70b9\u3067\u3042\u308b\u3002\u30b7\u30b9\u30c6\u30e0\u306b \u9244\u30a4\u30aa\u30f3\u3001\u9285\u30a4\u30aa\u30f3\u3001\u307e\u305f\u306f\u6eb6\u5b58\u9178\u7d20<\/b>, B2 will undergo rapid, catastrophic corrosion. Hastelloy C276, thanks to its chromium content, can handle “mixed” acids\u2014streams that are primarily reducing but contain oxidizing impurities. It is the go-to material for flue gas desulfurization (FGD) and complex chemical processing where the environment might fluctuate.<\/p>\n<\/li>\n<\/ul>\n

    B2\u3068C276\u306e\u6bd4\u8f03<\/h2>\n

    \u9069\u5207\u306a\u30b0\u30ec\u30fc\u30c9\u3092\u9078\u629e\u3059\u308b\u306b\u306f\u3001\u30e1\u30c7\u30a3\u30a2\u306e\u6c5a\u67d3\u7269\u8cea\u306b\u3064\u3044\u3066\u6df1\u304f\u6398\u308a\u4e0b\u3052\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e3\u3064\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30fb\u30eb\u30fc\u30eb\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n

      \n
    1. \n

      \u9178\u5316\u5264\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\uff1a<\/b> \u9178\u7d20\u3001\u5869\u7d20\u30ac\u30b9\u3001\u9178\u5316\u6027\u5869\u985e\uff08\u4f8b\u3048\u3070 F<\/span>e<\/span>C<\/span>l<\/span>3<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>)\u304c\u5b58\u5728\u3059\u308b\u3001, C276\u3092\u9078\u629e<\/b>. .B2\u306f\u7d14\u7c8b\u306a\u9084\u5143\u6027\u9178\u306b\u53b3\u3057\u3044\u3002.<\/p>\n<\/li>\n

    2. \n

      HCl\u6fc3\u5ea6\u3092\u8a55\u4fa1\u3059\u308b\uff1a<\/b> C276\u304c\u4e2d\u7a0b\u5ea6\u306e\u8150\u98df\u901f\u5ea6\u3092\u793a\u3059\u53ef\u80fd\u6027\u306e\u3042\u308b\u9ad8\u6fc3\u5ea6\u3001\u9ad8\u6e29\u306e\u7d14HCl\u306b\u306f\u3001B2\u304c\u512a\u308c\u305f\u6280\u8853\u7684\u9078\u629e\u80a2\u3067\u3042\u308b\u3002.<\/p>\n<\/li>\n

    3. \n

      \u5fdc\u529b\u8150\u98df\u5272\u308c\uff08SCC\uff09\u3068\u5b54\u98df\uff1a<\/b> If the application involves stagnant “dead zones” where chlorides can concentrate, the molybdenum and tungsten in C276 offer better protection against localized pitting than B2.<\/p>\n<\/li>\n<\/ol>\n

      \n

      \u95a2\u9023Q&A<\/h3>\n

      Q1\uff1a\u30cf\u30b9\u30c6\u30ed\u30a4B2\u306f\u785d\u9178\u7528\u9014\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u304b\uff1f<\/b><\/p>\n

      \u305d\u3046\u3060\u3002.<\/b> \u785d\u9178\u306f\u5f37\u3044\u9178\u5316\u5264\u3067\u3042\u308b\u3002\u30cf\u30b9\u30c6\u30ed\u30a4B2\u306f\u3001\u4fdd\u8b77\u4e0d\u52d5\u614b\u76ae\u819c\u3092\u5f62\u6210\u3059\u308b\u306e\u306b\u5fc5\u8981\u306a\u30af\u30ed\u30e0\u3092\u6b20\u3044\u3066\u3044\u308b\u305f\u3081\u3001\u307b\u3068\u3093\u3069\u77ac\u6642\u306b\u8150\u98df\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u30cf\u30b9\u30c6\u30ed\u30a4C276\u3001\u3042\u308b\u3044\u306fC22\u306e\u65b9\u304c\u306f\u308b\u304b\u306b\u9069\u5207\u3067\u3042\u308d\u3046\u3002.<\/p>\n

      Q2: B2\u3068\u4e26\u3093\u3067\u30cf\u30b9\u30c6\u30ed\u30a4B3\u304c\u3088\u304f\u53d6\u308a\u4e0a\u3052\u3089\u308c\u308b\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f<\/b><\/p>\n

      \u30cf\u30b9\u30c6\u30ed\u30a4B3\u306fB2\u306e\u8fd1\u4ee3\u7684\u5f8c\u7d99\u6750\u3067\u3042\u308b\u3002\u8010\u98df\u6027\u306f\u540c\u3058\u3067\u3059\u304c\u3001\u71b1\u5b89\u5b9a\u6027\u304c\u5411\u4e0a\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u52a0\u5de5\u304c\u5bb9\u6613\u3067\u3001\u6eb6\u63a5\u3084\u71b1\u51e6\u7406\u6642\u306e\u8106\u5316\u304c\u5c11\u306a\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002.<\/p>\n

      Q3: Which alloy is better for “Sour Gas” (H2S) environments?<\/b><\/p>\n

      \u30cf\u30b9\u30c6\u30ed\u30a4C276\u306f\u3001\u77f3\u6cb9\u30fb\u30ac\u30b9\u5206\u91ce\u306e\u30b5\u30ef\u30fc\u30ac\u30b9\u7528\u3068\u3057\u3066\u696d\u754c\u6a19\u6e96\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u786b\u5316\u7269\u5fdc\u529b\u5272\u308c(SSC)\u3084\u3001\u5869\u5316\u7269\u3084\u8150\u98df\u6027\u30ac\u30b9\u306e\u5b58\u5728\u4e0b\u3067\u306e\u5b54\u98df\u306b\u5bfe\u3059\u308b\u8010\u6027\u304c\u3042\u308a\u307e\u3059\u3002 H<\/span>2<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span>S<\/span><\/span><\/span><\/span><\/span> \u306f\u3001\u3053\u306e\u3088\u3046\u306a\u8907\u96d1\u3067\u3001\u3057\u3070\u3057\u3070\u308f\u305a\u304b\u306b\u9178\u5316\u7684\u306a\u74b0\u5883\u3067\u306f\u3001B2\u3088\u308a\u3082\u512a\u308c\u3066\u3044\u308b\u3002.<\/p>","protected":false},"excerpt":{"rendered":"

      In the world of high-performance nickel alloys, choosing between Hastelloy B2 (UNS N10665) and Hastelloy C276 (UNS N10276) can be the difference between a decade of service and a catastrophic equipment failure. While both belong to the Hastelloy family, their chemical DNA dictates vastly different responses to corrosive media. This guide breaks down the technical nuances to help engineers make an informed decision. B2 vs C276 comparison The fundamental difference between these two alloys lies in their Chromium (Cr) content. Hastelloy B2 is essentially a nickel-molybdenum alloy with almost no chromium, whereas C276 is a nickel-molybdenum-chromium alloy with the addition of tungsten. Element Hastelloy B2 (Typical %) Hastelloy C276 (Typical […]<\/p>","protected":false},"author":1,"featured_media":2431,"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2430","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"spectra_custom_meta":{"_edit_lock":["1769738380:1"],"_edit_last":["1"],"rank_math_seo_score":["57"],"rank_math_description":["Choosing the right grade requires a deep dive into the specific contaminants of your media. 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While both belong to the Hastelloy family, their chemical DNA dictates vastly different responses to corrosive media. This guide breaks down the technical…","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2430","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=2430"}],"version-history":[{"count":1,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2430\/revisions"}],"predecessor-version":[{"id":2432,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2430\/revisions\/2432"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/media\/2431"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/media?parent=2430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/categories?post=2430"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/tags?post=2430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}