{"id":17120,"date":"2026-01-09T16:41:56","date_gmt":"2026-01-09T08:41:56","guid":{"rendered":"https:\/\/daxuns.com\/?p=17120"},"modified":"2026-01-09T16:49:04","modified_gmt":"2026-01-09T08:49:04","slug":"2205%e4%ba%8c%e7%9b%b8%e3%82%b9%e3%83%86%e3%83%b3%e3%83%ac%e3%82%b9%e9%8b%bc%e3%81%a8%e3%81%af","status":"publish","type":"post","link":"https:\/\/daxuns.com\/ja\/2205%e4%ba%8c%e7%9b%b8%e3%82%b9%e3%83%86%e3%83%b3%e3%83%ac%e3%82%b9%e9%8b%bc%e3%81%a8%e3%81%af\/","title":{"rendered":"2205\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u3068\u306f\uff1f\u4e8c\u76f8\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u306e\u6027\u80fd\u306b\u95a2\u3059\u308b\u7a76\u6975\u306e\u30ac\u30a4\u30c9"},"content":{"rendered":"

\u82db\u9177\u306a\u5316\u5b66\u85ac\u54c1\u3078\u306e\u66dd\u9732\u306b\u8010\u3048\u308b\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc \u304c\u5fc5\u8981\u3067\u3042\u3063\u305f\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u3068\u3063\u3066\u30012205\u4e8c\u76f8 \u92fc\u306f\u5b8c\u74a7\u306a\u59a5\u5354\u6848\u3067\u3042\u3063\u305f\u30021970\u5e74\u4ee3\u306e\u77f3\u6cb9\u30fb\u30ac\u30b9\u696d\u754c\u306e\u8981\u6c42\u304b\u3089\u751f\u307e\u308c\u305f \u3053\u306e\u5408\u91d1\u306f\u3001\u4ee5\u4e0b\u306e\u7279\u6027\u3092\u5099\u3048\u3066\u3044\u308b\u3002 <\/span>\u6a19\u6e96\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u7cfb\u92fc\u7a2e\u306e2\u500d\u306e\u964d\u4f0f\u5f37\u5ea6<\/span><\/strong> while providing superior resistance to chloride stress corrosion cracking. Yet confusion persists: Is it truly “stainless”? How does it compare to super duplex grades? Why do chemical plants specify it for critical service? This guide cuts through marketing hype with metallurgical facts, revealing why 2205 has become the workhorse of demanding industries\u2014from offshore platforms to desalination plants\u2014and how to specify it correctly to avoid costly failures.<\/span><\/p>\n

2205\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u3068\u306f\uff1f\u6280\u8853\u7684\u5b9a\u7fa9<\/span><\/strong><\/span><\/h4>\n
\u7d44\u6210\u3068\u91d1\u5c5e\u7d44\u7e54<\/span><\/strong><\/h6>\n

2205\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc (UNS S32205\/S31803) \u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u92fc\u7a2e\u3067\u3059\u3002 <\/span>\u4e8c\u76f8\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc<\/span><\/strong> \u3092\u542b\u3080\u4e8c\u76f8\u5fae\u7d30\u69cb\u9020\u3092\u6301\u3064\u3002 <\/span>50%\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8<\/span><\/strong> \u305d\u3057\u3066 <\/span>50%\u30d5\u30a7\u30e9\u30a4\u30c8<\/span><\/strong>. .\u305d\u306e\u540d\u524d\u306f\u305d\u306e\u7d44\u6210\u306b\u7531\u6765\u3059\u308b\uff1a <\/span>\u30af\u30ed\u30e022%\u3001\u30cb\u30c3\u30b1\u30eb5%\u3001\u30e2\u30ea\u30d6\u30c7\u30f33%\u3001\u7a92\u7d200.15%<\/span><\/strong>. .\u3053\u306e\u7cbe\u5bc6\u306a\u30d0\u30e9\u30f3\u30b9\u304c\u3001\u5358\u76f8\u5408\u91d1\u3067\u306f\u5f97\u3089\u308c\u306a\u3044\u72ec\u7279\u306e\u7279\u6027\u3092\u751f\u307f\u51fa\u3057\u3066\u3044\u308b\u3002.<\/span><\/p>\n

\u6b63\u78ba\u306a\u5316\u5b66\u7d44\u6210\uff08ASTM A240\u306b\u3088\u308b\uff09\uff1a<\/span><\/strong>
\n<\/span><\/h6>\n
    \n
  • \u30af\u30ed\u30e0\uff08Cr\uff09\uff1a21.0-23.0% - \u4fdd\u8b77\u9178\u5316\u7269\u5c64\u3092\u5f62\u6210<\/span><\/li>\n
  • \u30cb\u30c3\u30b1\u30eb (Ni)\uff1a4.5-6.5% - \u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u76f8\u3092\u5b89\u5b9a\u5316\u3055\u305b\u308b\u3002<\/span><\/li>\n
  • \u30e2\u30ea\u30d6\u30c7\u30f3\uff08Mo\uff09\uff1a2.5-3.5% - \u8010\u5b54\u98df\u6027\u306b\u91cd\u8981<\/span><\/li>\n
  • \u7a92\u7d20\uff08N\uff09\uff1a0.08\uff5e0.20% - \u8010\u98df\u6027\u3092\u640d\u306a\u3046\u3053\u3068\u306a\u304f\u5f37\u5316\u3002<\/span><\/li>\n
  • \u30de\u30f3\u30ac\u30f3 (Mn): \u22642.0%<\/span><\/li>\n
  • \u30b7\u30ea\u30b3\u30f3\uff08Si\uff09\uff1a\u22661.0%<\/span><\/li>\n
  • \u70ad\u7d20(C)\uff1a\u22640.030% - \u30af\u30ed\u30e0\u70ad\u5316\u7269\u306e\u5f62\u6210\u3092\u9632\u3050\u305f\u3081\u8d85\u4f4e\u70ad\u7d20\u3002<\/span><\/li>\n
  • \u30ea\u30f3\uff08P\uff09\uff1a\u22660.030%<\/span><\/li>\n
  • \u786b\u9ec4\uff08S\uff09\uff1a\u22660.020%<\/span><\/li>\n
  • \u9244\uff08Fe\uff09\uff1a\u30d0\u30e9\u30f3\u30b9<\/span><\/li>\n<\/ul>\n
    \u51b6\u91d1\u7684\u69cb\u9020<\/span><\/strong><\/h6>\n

    \u4e00\u822c\u7684\u306a\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u7cfb\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc(304\u3001 316)\u3068\u306f\u7570\u306a\u308a\u30012205\u306f\u4e8c\u76f8\u92fc\u69cb\u9020\u3092\u6301\u3064\uff1a<\/span><\/p>\n

      \n
    • \u3088\u308a\u9ad8\u3044\u5f37\u5ea6<\/span><\/strong> \u71b1\u51e6\u7406\u306a\u3057\uff08\u964d\u4f0f\u5f37\u3055 450 MPa \u5bfe 316L 205 MPa\uff09<\/span><\/li>\n
    • \u512a\u308c\u305f\u8010\u5fdc\u529b\u8150\u98df\u5272\u308c\u6027<\/span><\/strong> \u5869\u5316\u7269\u74b0\u5883\u4e0b<\/span><\/li>\n
    • \u3088\u308a\u512a\u308c\u305f\u71b1\u4f1d\u5c0e\u6027<\/span><\/strong> (\u71b1\u4ea4\u63db\u5668\u306e\u71b1\u75b2\u52b4\u3092\u8efd\u6e1b\u3059\u308b\uff09<\/span><\/li>\n
    • \u4f4e\u71b1\u81a8\u5f35<\/span><\/strong> (\u6eb6\u63a5\u6642\u306e\u6b6a\u307f\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\uff09<\/span><\/li>\n<\/ul>\n
      \u57fa\u6e96\u3092\u7ba1\u7406\u3059\u308b\uff1a<\/span><\/strong><\/h6>\n
        \n
      • ASTM A240\uff1a<\/span><\/strong> \u677f\u3001\u30b7\u30fc\u30c8\u3001\u30b9\u30c8\u30ea\u30c3\u30d7\u306e\u4ed5\u69d8<\/span><\/li>\n
      • ASTM A790\uff1a<\/span><\/strong> \u30b7\u30fc\u30e0\u30ec\u30b9\u304a\u3088\u3073\u6eb6\u63a5\u30d5\u30a7\u30e9\u30a4\u30c8\/\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u92fc\u7ba1<\/span><\/li>\n
      • NORSOK M-001\uff1a<\/span><\/strong> \u30ce\u30eb\u30a6\u30a7\u30fc\u306e\u30aa\u30d5\u30b7\u30e7\u30a2\u77f3\u6cb9\u30fb\u30ac\u30b9\u898f\u683c<\/span><\/li>\n
      • ISO 15510\uff1a<\/span><\/strong> \u56fd\u969b\u547c\u79f0 (X2CrNiMoN22-5-3)<\/span><\/li>\n<\/ul>\n

        \u4e00\u822c\u7684\u306a\u30b9\u30c6\u30f3\u30ec\u30b9\u30b0\u30ec\u30fc\u30c9\u3092\u4e0a\u56de\u308b\u6027\u80fd\u4e0a\u306e\u5229\u70b9<\/span><\/strong><\/span><\/h4>\n
        \u6027\u80fd\u6bd4\u8f03<\/h6>\n\n\n\n\n\n\n\n\n\n
        \n
        \u30d7\u30ed\u30d1\u30c6\u30a3<\/span><\/strong><\/div>\n<\/th>\n
        		\n
        2205\u30c7\u30e5\u30d7\u30ec\u30c3\u30af\u30b9<\/span><\/strong><\/div>\n<\/th>\n
        		\n
        316L \u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u7cfb<\/span><\/strong><\/div>\n<\/th>\n
        		\n
        \u70ad\u7d20\u92fc<\/span><\/strong><\/div>\n<\/th>\n<\/tr>\n<\/thead>\n
        \n
        \u964d\u4f0f\u5f37\u5ea6\uff08MPa\uff09<\/span><\/strong><\/div>\n<\/td>\n
        		\n
        450\uff08\u5206\uff09<\/span><\/div>\n<\/td>\n
        		\n
        170\uff08\u5206\uff09<\/span><\/div>\n<\/td>\n
        		\n
        250\uff08\u5206\uff09<\/span><\/div>\n<\/td>\n<\/tr>\n
        \n
        \u8010\u5b54\u98df\u6027\uff08PREN\uff09<\/span><\/strong><\/div>\n<\/td>\n
        		\n
        34-38<\/span><\/div>\n<\/td>\n
        		\n
        24-26<\/span><\/div>\n<\/td>\n
        		\n
        <10<\/span><\/div>\n<\/td>\n<\/tr>\n
        \n
        \u5869\u5316\u7269\u898f\u5236\u5024 (ppm)<\/span><\/strong><\/div>\n<\/td>\n
        		\n
        5,000 @ 40\u00b0C<\/span><\/div>\n<\/td>\n
        		\n
        1,000 @ 30\u00b0C<\/span><\/div>\n<\/td>\n
        		\n
        <10<\/span><\/div>\n<\/td>\n<\/tr>\n
        \n
        \u71b1\u4f1d\u5c0e\u7387<\/span><\/strong><\/div>\n<\/td>\n
        		\n
        19 W\/m-K<\/span><\/div>\n<\/td>\n
        		\n
        15 W\/m-K<\/span><\/div>\n<\/td>\n
        		\n
        50 W\/m-K<\/span><\/div>\n<\/td>\n<\/tr>\n
        \n
        \u71b1\u81a8\u5f35<\/span><\/strong><\/div>\n<\/td>\n
        		\n
        10.5 \u00b5m\/m-\u00b0C<\/span><\/div>\n<\/td>\n
        		\n
        16.0 \u00b5m\/m-\u00b0C<\/span><\/div>\n<\/td>\n
        		\n
        12.0 \u00b5m\/m-\u00b0C<\/span><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
        \u5b9f\u969b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u91cd\u8981\u306a\u7406\u7531<\/span><\/strong><\/h6>\n
          \n
        • \u8efd\u91cf\u5316\uff1a<\/span><\/strong> 2205\u306e\u9ad8\u3044\u5f37\u5ea6\u306f\u3001\u540c\u3058\u5b9a\u683c\u5727\u529b\u3067 316L\u3088\u308a\u308230-50%\u8584\u3044\u58c1\u3092\u53ef\u80fd\u306b\u3057\u3001 \u91cd\u91cf\u304c\u91cd\u8981\u306a\u30aa\u30d5\u30b7\u30e7\u30a2\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u3068\u3063 \u3066\u6975\u3081\u3066\u91cd\u8981\u3067\u3042\u308b\u3002.<\/span><\/li>\n
        • \u71b1\u30b5\u30a4\u30af\u30eb\uff1a<\/span><\/strong> \u81a8\u5f35\u4fc2\u6570\u304c\u4f4e\u3044\u305f\u3081\u3001\u71b1\u4ea4\u63db\u5668\u306e\u6e29\u5ea6\u5909\u52d5\u6642\u306e\u6eb6\u63a5\u5fdc\u529b\u304c\u4f4e\u6e1b\u3055\u308c\u308b\u3002.<\/span><\/li>\n
        • \u8010\u6469\u8017\u6027\uff1a<\/span><\/strong> 2205\u306f\u3001316L\u304c\u6025\u901f\u306b\u8150\u98df\u3059\u308b\u6d77\u6c34\u6de1\u6c34\u5316\u30d7\u30e9\u30f3\u30c8\u306e\u7802\u3092\u542b\u3093\u3060\u6d77\u6c34\u306b\u8010\u3048\u308b\u3002.<\/span><\/li>\n<\/ul>\n
          \n

          2205\u304c\u512a\u4f4d\u3092\u5360\u3081\u308b\u91cd\u8981\u306a\u7528\u9014<\/span><\/strong><\/h3>\n

          \u77f3\u6cb9\u30fb\u30ac\u30b9\u751f\u7523<\/span><\/strong><\/p>\n

            \n
          • H\u2082S\/CO\u2082\u74b0\u5883\u3092\u6271\u3046\u30b5\u30d6\u30b7\u30fc\u30fb\u30de\u30cb\u30db\u30fc\u30eb\u30c9\u3068\u30d5\u30ed\u30fc\u30e9\u30a4\u30f3\uff08NACE MR0175\u6e96\u62e0\uff09<\/span><\/li>\n
          • 100,000ppm\u4ee5\u4e0a\u306e\u5869\u5316\u7269\u306b\u3055\u3089\u3055\u308c\u305f\u30af\u30ea\u30b9\u30de\u30b9\u30c4\u30ea\u30fc\u3068\u30a6\u30a7\u30eb\u30d8\u30c3\u30c9\u306e\u90e8\u54c1<\/span><\/li>\n
          • \u306a\u305c316\u3067\u306f\u30c0\u30e1\u306a\u306e\u304b\uff1f<\/span><\/em> 316L\u306f\u3001\u5869\u5316\u7269\u30ec\u30d9\u30eb\u304c1,000ppm\u3092\u8d85\u3048\u308b\u3068\u5fdc\u529b\u8150\u98df\u5272\u308c\u3092\u8d77\u3053\u3059\u3002.<\/span><\/li>\n<\/ul>\n

            \u5316\u5b66\u51e6\u7406\uff1a<\/span><\/strong><\/p>\n

              \n
            • \u786b\u9178\u8caf\u8535\u30bf\u30f3\u30af(20-70%\u6fc3\u5ea650\u2103)<\/span><\/li>\n
            • 90\u2103\u3067\u904b\u8ee2\u3059\u308b\u82db\u6027\u30bd\u30fc\u30c0\u84b8\u767a\u5668<\/span><\/li>\n
            • \u4e3b\u306a\u5229\u70b9<\/span><\/em> 2205\u306f\u3001316L\u3088\u308a\u3082\u9178\u5316\u6027\u9178\u306b\u3082\u9084\u5143\u6027\u9178\u306b\u3082\u8010\u6027\u304c\u3042\u308b\u3002.<\/span><\/li>\n<\/ul>\n

              \u6d77\u6c34\u6de1\u6c34\u5316\u30d7\u30e9\u30f3\u30c8<\/span><\/strong><\/p>\n

                \n
              • 35\u2103\u306770,000ppm\u306e\u98df\u5869\u6c34\u3092\u6271\u3046\u9006\u6d78\u900f\u5727\u529b\u5bb9\u5668<\/span><\/li>\n
              • \u591a\u6bb5\u30d5\u30e9\u30c3\u30b7\u30e5\uff08MSF\uff09\u30b7\u30b9\u30c6\u30e0\u306e\u71b1\u4ea4\u63db\u5668\u30c1\u30e5\u30fc\u30d6<\/span><\/li>\n
              • \u6545\u969c\u4e88\u9632\uff1a<\/span><\/em> 2205\u306f\u3001\u6d77\u6c34\u306e\u6ede\u7559\u5730\u5e2f\u3067316L\u3092\u60a9\u307e\u305b\u308b\u9699\u9593\u8150\u98df\u3092\u6392\u9664\u3059\u308b\u3002.<\/span><\/li>\n<\/ul>\n

                \u30d1\u30eb\u30d7\u30fb\u88fd\u7d19\u696d\u754c<\/span><\/strong><\/p>\n

                  \n
                • \u4e8c\u9178\u5316\u5869\u7d20\u3068\u6b21\u4e9c\u5869\u7d20\u9178\u30ca\u30c8\u30ea\u30a6\u30e0\u306b\u3055\u3089\u3055\u308c\u305f\u6f02\u767d\u5de5\u5834\u306e\u6d88\u5316\u69fd<\/span><\/li>\n
                • \u5869\u5316\u7269\/\u786b\u5316\u7269\u306e\u542b\u6709\u91cf\u304c\u9ad8\u3044\u9ed2\u6db2\u56de\u53ce\u30dc\u30a4\u30e9\u30fc<\/span><\/li>\n
                • \u30b3\u30b9\u30c8\u3078\u306e\u5f71\u97ff\uff1a<\/span><\/em> 2205\u306e\u90e8\u54c1\u306e\u5bff\u547d\u306f8\uff5e10\u5e74\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u3001316L\u306e\u5bff\u547d\u306f2\uff5e3\u5e74\u3067\u3042\u308b\u3002.<\/span><\/li>\n<\/ul>\n

                  \u3088\u304f\u3042\u308b3\u3064\u306e\u8aa4\u89e3\u3092\u89e3\u304f<\/span><\/strong><\/span><\/h4>\n

                  Myth 1: “2205 is just expensive 316 stainless steel.”<\/span><\/strong>
                  \n\u73fe\u5b9f\u3060\uff1a<\/span><\/strong> 2205\u306e\u4fa1\u683c\u306f316L\u3088\u308akg\u5f53\u305f\u308a30-40%\u9ad8\u3044\u304c\u30012205\u306f316L\u3088\u308a\u9ad8\u3044\u3002 <\/span>\u500d\u306e\u5f37\u3055<\/span><\/strong> \u305d\u3057\u3066 <\/span>3\uff5e5\u500d\u306e\u9577\u5bff\u547d<\/span><\/strong> \u5869\u5316\u7269\u74b0\u5883\u3067\u306f\u3001\u5e74\u9593\u4f7f\u7528\u6599\u304c60%\u5b89\u304f\u306a\u308b\u3002\u30b7\u30f3\u30ac\u30dd\u30fc\u30eb\u306e\u3042\u308b\u5316\u5b66\u5de5\u5834\u3067\u306f\u3001316L \u304b\u30892205\u30ea\u30a2\u30af\u30bf\u30fc\u306b\u5207\u308a\u66ff\u3048\u305f\u5f8c\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u8cbb\u7528\u3092\u5e74\u9593 $85\u4e07\u30c9\u30eb\u524a\u6e1b\u3057\u305f\u3002.<\/span><\/p>\n

                  Myth 2: “Duplex stainless steels are difficult to weld.”<\/span><\/strong>
                  \n\u73fe\u5b9f\u3060\uff1a<\/span><\/strong> \u9069\u5207\u306a\u624b\u9806\u3092\u8e0f\u3081\u3070\u30012205\u306f\u30b9\u30fc\u30d1\u30fc\u4e8c\u76f8 \u92fc\u3088\u308a\u3082\u5bb9\u6613\u306b\u6eb6\u63a5\u3067\u304d\u308b\u3002\u6700\u65b0\u306e\u6eb6\u52a0\u6750 (2209)\u3068\u30a4\u30f3\u30d0\u30fc\u30bf\u30fc\u6eb6\u63a5\u6a5f\u306b\u3088\u308a\u3001\u73fe\u5834\u52a0\u5de5 \u306f\u4fe1\u983c\u3067\u304d\u308b\u3082\u306e\u306b\u306a\u308b\u3002\u91cd\u8981\u306a\u306e\u306f\u3001\u6eb6\u63a5\u3092\u5b8c\u5168\u306b\u907f\u3051\u308b\u306e\u3067\u306f\u306a \u304f\u3001\u5165\u71b1\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3002.<\/span><\/p>\n

                  Myth 3: “2205 is magnetic, so it’s lower quality.”<\/span><\/strong>
                  \n\u73fe\u5b9f\u3060\uff1a<\/span><\/strong> The ferritic phase makes duplex stainless steels magnetic\u2014that’s inherent to their design. Magnetism doesn’t indicate inferior quality; improper phase balance does. Always verify with ferrite scope, not magnet tests.<\/span><\/p>\n

                  \u7d50\u8ad6<\/span><\/strong><\/span><\/h4>\n

                  2205 stainless steel (UNS S32205\/S31803) represents the perfect balance of performance and value for demanding industrial applications. Its duplex microstructure delivers twice the strength of standard austenitic grades while providing exceptional resistance to chloride stress corrosion cracking, pitting, and crevice corrosion.For chemical processing equipment, oil and gas systems, desalination plants, and marine environments, 2205 isn’t just another stainless steel\u2014it’s the material that enables designs to survive where others fail.<\/p>\n

                  \u5927\u9806\u5408\u91d1\u6709\u9650\u516c\u53f8.<\/strong> \u306f\u3001\u59a5\u5354\u306e\u306a\u3044\u54c1\u8cea\u7ba1\u7406\u306b\u3088\u308a\u3001\u7cbe\u5bc6\u8a2d\u8a08\u306e\u30b9\u30c6\u30f3\u30ec \u30b9\u92fc\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u3066\u304d\u305f\u3002\u5f53\u793e\u306e\u51b6\u91d1\u5b66\u7684\u5c02\u9580\u77e5\u8b58\u306b\u3088\u308a\u30012205\u3001 316L\u3001\u304a\u3088\u3073\u7279\u6b8a\u5408\u91d1\u306e\u5404\u30d0\u30c3\u30c1\u306f\u3001\u6eb6\u878d\u8a3c\u660e\u66f8 \u304b\u3089\u8150\u98df\u8a66\u9a13\u5831\u544a\u66f8\u307e\u3067\u3001\u5b8c\u5168\u306a\u30c8\u30ec\u30fc\u30b5\u30d3\u30ea\u30c6\u30a3\u30fc\u306b \u3088\u308aASTM\/EN\u4ed5\u69d8\u306b\u9069\u5408\u3057\u3066\u3044\u308b\u3002\u6700\u3082\u904e\u9177\u306a\u74b0\u5883\u3067\u6027\u80fd\u3092\u767a\u63ee\u3059\u308b\u6750\u6599\u304c\u5fc5\u8981\u306a\u30d7\u30ed \u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u5f53\u793e\u306e\u30b0\u30ed\u30fc\u30d0\u30eb\u306a\u4f9b\u7d66\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4fe1\u983c\u3057\u3001\u8a8d\u5b9a\u3092\u53d7\u3051\u305f\u30b9\u30c6\u30f3\u30ec \u30b9\u92fc\u3092\u8fc5\u901f\u306b\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

                  When engineers needed a stainless steel that could withstand harsh chemical exposure without breaking the bank, 2205 duplex stainless steel emerged as the perfect compromise. Born from oil and gas industry demands in the 1970s, this alloy delivers twice the yield strength of standard austenitic grades while providing superior resistance […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","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":"","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":[1],"tags":[],"class_list":["post-17120","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"yoast_head":"\nWhat is 2205 Stainless Steel? 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