{"id":2444,"date":"2026-01-23T09:58:00","date_gmt":"2026-01-23T08:58:00","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=2444"},"modified":"2026-01-30T03:01:13","modified_gmt":"2026-01-30T02:01:13","slug":"%e3%83%8b%e3%83%83%e3%82%b1%e3%83%ab200%e3%81%a8%e3%83%8b%e3%83%83%e3%82%b1%e3%83%ab201%e3%81%ae%e6%af%94%e8%bc%83","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/ja\/%e3%83%8b%e3%83%83%e3%82%b1%e3%83%ab200%e3%81%a8%e3%83%8b%e3%83%83%e3%82%b1%e3%83%ab201%e3%81%ae%e6%af%94%e8%bc%83\/","title":{"rendered":"\u30cb\u30c3\u30b1\u30eb200\u3068\u30cb\u30c3\u30b1\u30eb201\u306e\u6bd4\u8f03"},"content":{"rendered":"

\u9ad8\u7d14\u5ea6\u306e\u9818\u57df\u3067 \u30cb\u30c3\u30b1\u30eb\u5408\u91d1<\/a>, \u30cb\u30c3\u30b1\u30eb200<\/a> (UNS N02200)\u3068 \u30cb\u30c3\u30b1\u30eb 201<\/a> (UNS N02201)\u306f\u3001\u5316\u5b66\u51e6\u7406\u304a\u3088\u3073\u822a\u7a7a\u5b87\u5b99\u7523\u696d\u306e\u4e3b\u529b\u88fd\u54c1\u3067\u3042\u308b\u3002\u3069\u3061\u3089\u306e\u5408\u91d1\u3082\u82db\u6027\u30a2\u30eb\u30ab\u30ea\u3084\u84b8\u7559\u6c34\u306b\u5bfe\u3057\u3066\u5353\u8d8a\u3057\u305f\u8010\u6027\u3092\u767a\u63ee\u3057\u307e\u3059\u304c\u3001\u9ad8\u6e29\u74b0\u5883\u4e0b\u3067\u306e\u69cb\u9020\u7684\u5b8c\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4e21\u5408\u91d1\u9593\u306e\u5fae\u5999\u306a\u5316\u5b66\u7684\u30cb\u30e5\u30a2\u30f3\u30b9\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002.<\/p>\n

\"\"<\/p>\n

\u30cb\u30c3\u30b1\u30eb200\u3068201\u306e\u9055\u3044<\/h3>\n

The fundamental difference between Nickel 200 and Nickel 201 lies in their carbon content. Nickel 200 is a commercially pure wrought nickel with a maximum carbon content of 0.15%. In contrast, Nickel 201 is the “low-carbon” version, restricted to a maximum of 0.02%.<\/p>\n

\u3053\u306e\u70ad\u7d20\u306e\u5dee\u306f\u3001\u71b1\u5b89\u5b9a\u6027\u3092\u5287\u7684\u306b\u5909\u5316\u3055\u305b\u308b\u3002\u30cb\u30c3\u30b1\u30eb200\u304c315\u2103\uff08600\u00b0F\uff09 \u3092\u8d85\u3048\u308b\u6e29\u5ea6\u306b\u9577\u6642\u9593\u3055\u3089\u3055\u308c\u308b\u3068\u3001\u904e\u5270\u306a \u70ad\u7d20\u304c\u7c92\u754c\u306b\u9ed2\u925b\u3068\u3057\u3066\u6790\u51fa\u3059\u308b\u3002\u3053\u306e\u73fe\u8c61\u306f\u9ed2\u925b\u5316\u3068\u3057\u3066\u77e5\u3089\u308c\u3001\u5ef6\u6027\u304c\u8457\u3057\u304f\u640d\u306a\u308f\u308c\u3001\u6700\u7d42\u7684\u306b\u306f\u7c92\u754c\u8106\u5316\u3092\u5f15\u304d\u8d77\u3053\u3059\u3002\u5236\u5fa1\u3055\u308c\u305f\u4f4e\u70ad\u7d20\u3092\u6301\u3064\u30cb\u30c3\u30b1\u30eb201\u306f\u3001\u3053\u306e\u30ea\u30b9\u30af\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306b\u7279\u5225\u306b\u8a2d\u8a08\u3055\u308c\u3066\u304a\u308a\u3001650\u2103\uff081200\u00b0F\uff09\u307e\u3067\u6a5f\u68b0\u7684\u7279\u6027\u3092\u7dad\u6301\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u30d7\u30ed\u30d1\u30c6\u30a3<\/td>\n\u30cb\u30c3\u30b1\u30eb200\uff08UNS N02200\uff09<\/td>\n\u30cb\u30c3\u30b1\u30eb 201 (UNS N02201)<\/td>\n<\/tr>\n<\/thead>\n
\u70ad\u7d20\u542b\u6709\u91cf\uff08\u6700\u5927\uff09<\/td>\n0.15%<\/td>\n0.02%<\/td>\n<\/tr>\n
\u5bc6\u5ea6<\/td>\n8.89 g\/cm\u00b3<\/td>\n8.89 g\/cm\u00b3<\/td>\n<\/tr>\n
\u6700\u9ad8\u4f7f\u7528\u6e29\u5ea6<\/td>\n315\u00b0C<\/td>\n650\u00b0C<\/td>\n<\/tr>\n
\u5f15\u5f35\u5f37\u3055\uff08\u30a2\u30cb\u30fc\u30eb\u51e6\u7406\u6e08\u307f\uff09<\/td>\n67,000 psi (462 MPa)<\/td>\n58,000 psi (400 MPa)<\/td>\n<\/tr>\n
\u964d\u4f0f\u5f37\u3055\uff08\u30a2\u30cb\u30fc\u30eb\u51e6\u7406\uff09<\/td>\n21,500 psi (148 MPa)<\/td>\n15,000 psi (103 MPa)<\/td>\n<\/tr>\n
\u786c\u5ea6\uff08\u30ed\u30c3\u30af\u30a6\u30a7\u30ebB\uff09<\/td>\n45 – 55<\/td>\n40 – 50<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u30cb\u30c3\u30b1\u30eb200 vs 201 \u9078\u3073\u65b9<\/h3>\n

\u3053\u306e2\u3064\u306e\u30b0\u30ec\u30fc\u30c9\u306e\u3069\u3061\u3089\u3092\u9078\u3076\u304b\u306f\u3001\u4e3b\u306b\u4f7f\u7528\u6e29\u5ea6\u3068\u8981\u6c42\u3055\u308c\u308b\u6a5f\u68b0\u7684\u5f37\u5ea6\u306b\u3088\u3063\u3066\u6c7a\u307e\u308b\u3002.<\/p>\n

    \n
  1. \n

    \u6e29\u5ea6\u95be\u5024\uff1a315\u2103(600\u00b0F)\u4ee5\u4e0a\u3067\u306e\u9023\u7d9a\u4f7f\u7528\u306b\u306f\u3001\u30cb\u30c3\u30b1\u30eb 201\u304c\u552f\u4e00\u306e\u6709\u52b9\u306a\u9078\u629e\u80a2\u3067\u3059\u3002\u82db\u6027\u84b8\u767a\u5668\u3001\u71c3\u713c\u30dc\u30fc\u30c8\u3001\u96fb\u5b50\u90e8\u54c1\u306a\u3069\u3001\u9ad8\u71b1\u3092\u4f34\u3046\u7528\u9014\u306b\u3088\u304f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002.<\/p>\n<\/li>\n

  2. \n

    \u6a5f\u68b0\u7684\u5f37\u5ea6\uff1a\u70ad\u7d20\u304c\u30cb\u30c3\u30b1\u30eb\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u4e2d\u3067\u5f37\u5316\u5264\u3068\u3057\u3066 \u4f5c\u7528\u3059\u308b\u305f\u3081\u3001\u30cb\u30c3\u30b1\u30eb200\u306f\u30cb\u30c3\u30b1\u30eb201\u3088\u308a\u3082\u786c \u5ea6\u304a\u3088\u3073\u5f15\u5f35\u5f37\u5ea6\u304c\u308f\u305a\u304b\u306b\u9ad8\u3044\u3002\u5e38\u6e29\u7528\u9014\u3084315\u2103\u4ee5\u4e0b\u306e\u7528\u9014\u3067\u306f\u3001\u30cb\u30c3\u30b1\u30eb200\u306e\u65b9\u304c\u69cb\u9020\u525b\u6027\u304c\u9ad8\u3044\u3002.<\/p>\n<\/li>\n

  3. \n

    \u8010\u98df\u6027\uff1a\u4e21\u92fc\u7a2e\u3068\u3082\u3001\u307b\u3068\u3093\u3069\u306e\u74b0\u5883\u3001\u7279\u306b\u82db\u6027\u30bd\u30fc\u30c0\uff08NaOH\uff09\u3068\u6c34\u9178\u5316\u30ab\u30ea\u30a6\u30e0\u306b\u5bfe\u3059\u308b\u8010\u98df\u6027\u306f\u540c\u3058\u3067\u3042\u308b\u3002\u305f\u3060\u3057\u3001\u52a0\u5727\u5bb9\u5668\u3092\u88fd\u9020\u3059\u308b\u5834\u5408\u306f\u3001\u6750\u6599\u304cASME\u30dc\u30a4\u30e9\u30fc\u30fb\u5727\u529b\u5bb9\u5668\u898f\u5b9a\uff08ASME Boiler and Pressure Vessel Code\uff09\u306e\u76ee\u7684\u6e29\u5ea6\u306b\u5fdc\u3058\u305f\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002.<\/p>\n<\/li>\n<\/ol>\n

    \"\"<\/h3>\n

    \u30cb\u30c3\u30b1\u30eb200\u5bfe201\u306e\u4e0d\u7d14\u7269\u611f\u5ea6<\/h3>\n

    Beyond carbon, both alloys are highly sensitive to sulfur contamination. Exposure to sulfur-bearing compounds at elevated temperatures can cause “sulfur embrittlement.” Sulfur migrates to the grain boundaries, forming a low-melting-point nickel sulfide eutectic that destroys the metal’s ductility.<\/p>\n

    Furthermore, Nickel 200\u2019s sensitivity to carbon precipitation is its “Achilles’ heel” in high-temp scenarios. While Nickel 201 mitigates this, users must still ensure that fabrication processes (like welding or heat treatment) do not introduce exogenous carbon or sulfur. Proper surface cleaning and the use of low-carbon filler metals are essential to maintaining the purity and performance of these alloys.<\/p>\n

    \n

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

    Q1: \u30cb\u30c3\u30b1\u30eb200\u3068\u30cb\u30c3\u30b1\u30eb201\u306f\u4e8c\u91cd\u8a8d\u8a3c\u3067\u304d\u307e\u3059\u304b\uff1f\u306f\u3044\u3002\u70ad\u7d20\u542b\u6709\u91cf\u304c\u4ee5\u4e0b\u306e\u5834\u5408\u3001\u30c7\u30e5\u30a2\u30eb\u8a8d\u8a3c\u304c\u53ef\u80fd\u3067\u3059\u3002 \u2264<\/span> 0.02%\uff08\u30cb\u30c3\u30b1\u30eb201\u306e\u4ed5\u69d8\u306b\u9069\u5408\uff09\u3067\u3042\u308a\u306a\u304c\u3089\u3001\u30cb\u30c3\u30b1\u30eb200\u306e\u6a5f\u68b0\u7684\u5f37\u5ea6\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u3002.<\/p>\n

    Q2: \u82db\u6027\u30bd\u30fc\u30c0\u51e6\u7406\u306b\u306f\u3069\u3061\u3089\u306e\u5408\u91d1\u304c\u9069\u3057\u3066\u3044\u307e\u3059\u304b\uff1f\u3069\u3061\u3089\u3082\u512a\u308c\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u82db\u6027\u30bd\u30fc\u30c0\u3092315\u2103\u4ee5\u4e0a\u306e\u9ad8\u6e29\u3067\u9ad8\u6fc3\u5ea6\u306b\u52a0\u71b1\u3059\u308b\u5834\u5408\u306f\u3001\u5fdc\u529b\u8150\u98df\u5272\u308c\u3084\u9ed2\u925b\u5316\u3092\u9632\u3050\u305f\u3081\u306b\u30cb\u30c3\u30b1\u30eb201\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

    Q3: \u4e21\u8005\u306b\u5927\u304d\u306a\u4fa1\u683c\u5dee\u306f\u3042\u308a\u307e\u3059\u304b\uff1f\u4e00\u822c\u7684\u306b\u3001\u4fa1\u683c\u5dee\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002\u30ab\u30fc\u30dc\u30f3\u306e\u7cbe\u88fd\u30d7\u30ed\u30bb\u30b9\u3088\u308a\u3082\u3001\u539f\u6599\u30cb\u30c3\u30b1\u30eb\u306e\u5e02\u5834\u4fa1\u683c\u306b\u3088\u3063\u3066\u30b3\u30b9\u30c8\u304c\u5de6\u53f3\u3055\u308c\u307e\u3059\u3002.<\/p>","protected":false},"excerpt":{"rendered":"

    In the realm of high-purity nickel alloys, Nickel 200 (UNS N02200) and Nickel 201 (UNS N02201) stand as the workhorses of the chemical processing and aerospace industries. While both alloys offer exceptional resistance to caustic alkalis and distilled water, understanding the subtle chemical nuances between them is critical for ensuring structural integrity in high-temperature environments. Nickel 200 vs 201 differences The fundamental difference between Nickel 200 and Nickel 201 lies in their carbon content. Nickel 200 is a commercially pure wrought nickel with a maximum carbon content of 0.15%. In contrast, Nickel 201 is the “low-carbon” version, restricted to a maximum of 0.02%. This discrepancy in carbon drastically alters their […]<\/p>","protected":false},"author":1,"featured_media":2451,"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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the realm of high-purity nickel alloys, Nickel 200 (UNS N02200) and Nickel 201 (UNS N02201) stand as the workhorses of the chemical processing and aerospace industries. While both alloys offer exceptional resistance to caustic alkalis and distilled water, understanding the subtle chemical nuances between them is critical for ensuring structural integrity in high-temperature environments.…","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2444","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=2444"}],"version-history":[{"count":3,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2444\/revisions"}],"predecessor-version":[{"id":2453,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2444\/revisions\/2453"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/media\/2451"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/media?parent=2444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/categories?post=2444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/tags?post=2444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}