{"id":3614,"date":"2026-04-10T04:52:25","date_gmt":"2026-04-10T03:52:25","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=3614"},"modified":"2026-04-10T04:52:25","modified_gmt":"2026-04-10T03:52:25","slug":"hastelloy-c-276-corrosion-resistance-in-sulfuric-acid","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/ja\/hastelloy-c-276-corrosion-resistance-in-sulfuric-acid\/","title":{"rendered":"\u786b\u9178\u4e2d\u3067\u306e\u30cf\u30b9\u30c6\u30ed\u30a4C-276\u306e\u8010\u98df\u6027?"},"content":{"rendered":"

\u30a8\u30f3\u30b8\u30cb\u30a2\u304b\u3089 \u30cf\u30b9\u30c6\u30ed\u30a4 C-276<\/a> \u786b\u9178\u4e2d\u3067\u306e\u8010\u98df\u6027<\/strong>, \u5f7c\u3089\u306f\u901a\u5e38\u3001\u7406\u8ad6\u7684\u306a\u8cea\u554f\u3092\u3057\u3066\u3044\u308b\u306e\u3067\u306f\u306a\u3044\u3002\u5f7c\u3089\u306f\u3001\u975e\u5e38\u306b\u73fe\u5b9f\u7684\u306a\u5931\u6557\u3092\u6b62\u3081\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u79fb\u9001\u30e9\u30a4\u30f3\u306e\u6f0f\u308c\u3001\u4ea4\u63db\u5668\u306e\u30d7\u30ec\u30fc\u30c8\u306e\u640d\u5931\u3001\u4e88\u671f\u305b\u306c\u6eb6\u63a5\u90e8\u306e\u653b\u6483\u3001\u3042\u308b\u3044\u306f\u4e00\u822c\u7684\u306a\u8150\u98df\u30c1\u30e3\u30fc\u30c8\u3067\u306f\u8a31\u5bb9\u3067\u304d\u308b\u3088\u3046\u306b\u898b\u3048\u305f\u5bb9\u5668\u304c\u3001\u5b9f\u969b\u306e\u9152\u985e\u5316\u5b66\u7684\u6027\u8cea\u306b\u8010\u3048\u3089\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u306a\u3069\u3067\u3059\u3002C-276\u306f\u3001\u305d\u306e\u5316\u5b66\u7684\u6027\u8cea\u304c\u9084\u5143\u6027\u9178\u306e\u80fd\u529b\u3068\u9178\u5316\u6027\u6c5a\u67d3\u7269\u8cea\u306b\u5bfe\u3059\u308b\u610f\u5473\u306e\u3042\u308b\u8010\u6027\u3092\u30d0\u30e9\u30f3\u30b9\u3055\u305b\u3066\u3044\u308b\u305f\u3081\u3001\u73fe\u5728\u3067\u3082\u6700\u3082\u5e83\u304f\u6307\u5b9a\u3055\u308c\u3066\u3044\u308bNi-Cr-Mo\u5408\u91d1\u306e\u4e00\u3064\u3067\u3042\u308b\u3002\u3057\u304b\u3057\u3001\u786b\u9178\u306e\u4f7f\u7528\u306b\u304a\u3044\u3066\u3001\u6b63\u89e3\u306f\u6c7a\u3057\u3066\u300c\u512a\u308c\u3066\u3044\u308b\u300d\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6fc3\u5ea6\u3001\u6e29\u5ea6\u3001\u901a\u6c17\u6027\u3001\u305d\u306e\u4ed6\u9178\u306b\u6eb6\u89e3\u3057\u3066\u3044\u308b\u3082\u306e\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n

\u51b6\u91d1\u30ec\u30d9\u30eb\u3067\u306f\u3001\u3053\u306e\u30d0\u30e9\u30f3\u30b9\u306f\u5076\u7136\u3067\u306f\u306a\u3044\u3002Haynes\u306f\u3001C-276\u3092\u30cb\u30c3\u30b1\u30eb\u300116wt.%\u306e\u30af\u30ed\u30e0\u300116wt.%\u306e\u30e2\u30ea\u30d6\u30c7\u30f3\u30014wt.%\u306e\u30bf\u30f3\u30b0\u30b9\u30c6\u30f3\u3067\u307b\u307c\u30d0\u30e9\u30f3\u30b9\u3055\u305b\u3001\u70ad\u7d20\u3068\u30b7\u30ea\u30b3\u30f3\u3092\u6975\u7aef\u306b\u5c11\u306a\u304f\u3057\u3066\u3044\u308b\u3002\u5b9f\u969b\u3001\u3053\u306e\u5408\u91d1\u306f\u307b\u3068\u3093\u3069\u306e\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u7a2e\u3088\u308a\u3082\u9178\u5316\u6027\u9178\u306b\u3082\u975e\u9178\u5316\u6027\u9178\u306b\u3082\u5bfe\u5fdc\u3067\u304d\u3001\u3057\u304b\u3082\u6eb6\u63a5\u90e8\u306f\u65e7\u6765\u306e\u8150\u98df\u5408\u91d1\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u8106\u5f31\u3067\u306a\u3044\u3002\u786b\u9178\u7cfb\u3067\u306f\u3001\u7279\u306b60\uff5e70wt.%\u306e\u7bc4\u56f2\u3067\u306f\u3001\u6fc3 \u5ea6\u304c\u4e0a\u6607\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u9178\u304c\u4e3b\u306b\u9084\u5143\u7684\u306a\u6319\u52d5 \u304b\u3089\u3088\u308a\u8907\u96d1\u306a\u96fb\u6c17\u5316\u5b66\u7684\u6319\u52d5\u306b\u5909\u5316\u3059\u308b\u305f\u3081\u3001\u3053 \u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u91cd\u8981\u306b\u306a\u308b\u3002.<\/p>\n

\"\u30cf\u30b9\u30c6\u30ed\u30a4C-276\u306e\u786b\u9178\u4e2d\u3067\u306e\u8010\u98df\u6027\"<\/p>\n

\u6700\u3082\u4fbf\u5229\u306a\u8aad\u307f\u65b9 \u30cf\u30b9\u30c6\u30ed\u30a4C-276\u306e\u786b\u9178\u4e2d\u3067\u306e\u8010\u98df\u6027<\/strong> \u306f\u3001\u5358\u4e00\u306e\u300c\u30a4\u30a8\u30b9\/\u30ce\u30fc\u300d\u6750\u6599\u8a55\u4fa1\u3067\u306f\u306a\u304f\u3001\u7b49\u8150\u98df\u30ed\u30b8\u30c3\u30af\u306b\u3088\u308b\u3082\u306e\u3067\u3042\u308b\u3002Haynes\u306f\u3001\u56f3\u4e0a\u306e\u9752\u3044\u7dda\u30920.1mm\/y\u3001\u8d64\u3044\u7dda\u30920.5mm\/y\u3068\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u30020.1mm\/y\u306e\u7dda\u4ee5\u4e0b\u3067\u306f\u3001\u8150\u98df\u306f\u4e00\u822c\u7684\u306b\u9577\u5bff\u547d\u6a5f\u5668\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u5b89\u5168\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u3066\u3044\u308b\u30020.1\uff5e0.5mm\/y\u306e\u9593\u3067\u306f\u3001\u8150\u98df\u8a31\u5bb9\u91cf\u3001\u691c\u67fb\u9593\u9694\u3001\u90e8\u54c1\u306e\u91cd\u8981\u6027\u306b\u3088\u3063\u3066\u306f\u3001\u5408\u91d1\u306f\u307e\u3060\u4f7f\u7528\u53ef\u80fd\u3067\u3042\u308b\u3002\u786b\u9178\u3068\u9178\u306e\u6bd4\u8f03\u30d7\u30ed\u30c3\u30c8\u3067\u306f\u3001C-276\u306f\u6fc3\u5ea6 \u7bc4\u56f2\u306e\u5927\u90e8\u5206\u3067316L\u3001254SMO\u3001\u304a\u3088\u3073625\u5408 \u91d1\u3088\u308a\u660e\u3089\u304b\u306b\u4e0a\u3067\u3042\u308a\u3001\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u304c\u9650\u754c \u306b\u9054\u3057\u305f\u3068\u304d\u306b\u3001\u7a4d\u6975\u7684\u306aCPI\u786b\u9178\u30b5\u30fc\u30d3\u30b9\u306b C-276\u304c\u9078\u629e\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u7406\u7531\u3067\u3042\u308b\u3002.<\/p>\n

\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u7684\u306a\u8868\u73fe\u3088\u308a\u3082\u3001\u3044\u304f\u3064\u304b\u306e\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u306e\u65b9\u304c\u30b9\u30c8\u30fc\u30ea\u30fc\u3092\u3088\u304f\u7269\u8a9e\u3063\u3066\u3044\u308b\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u786b\u9178\u6fc3\u5ea6(wt.%)<\/th>\n66\u00b0C \/ 150\u00b0F (mm\/y)<\/th>\n79\u00b0C \/ 175\u00b0F\uff08mm\/\u5e74\uff09<\/th>\n93\u00b0C \/ 200\u00b0F (mm\/y)<\/th>\n107\u00b0C \/ 225\u00b0F (mm\/y)<\/th>\n121\u00b0C \/ 250\u00b0F (mm\/y)<\/th>\n\u6cb8\u9a30\uff08mm\/y\uff09<\/th>\n<\/tr>\n<\/thead>\n
10<\/td>\n\u2014<\/td>\n0.03<\/td>\n0.14<\/td>\n\u2014<\/td>\n\u2014<\/td>\n0.18<\/td>\n<\/tr>\n
20<\/td>\n\u2014<\/td>\n0.05<\/td>\n0.40<\/td>\n\u2014<\/td>\n\u2014<\/td>\n0.49<\/td>\n<\/tr>\n
50<\/td>\n0.02<\/td>\n0.26<\/td>\n0.62<\/td>\n1.13<\/td>\n2.33<\/td>\n3.64<\/td>\n<\/tr>\n
70<\/td>\n0.05<\/td>\n0.16<\/td>\n0.50<\/td>\n1.06<\/td>\n13.68<\/td>\n\u2014<\/td>\n<\/tr>\n
90<\/td>\n0.03<\/td>\n0.05<\/td>\n0.46<\/td>\n1.64<\/td>\n4.79<\/td>\n\u2014<\/td>\n<\/tr>\n
96<\/td>\n\u2014<\/td>\n0.04<\/td>\n0.18<\/td>\n0.95<\/td>\n\u2014<\/td>\n\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u51fa\u5178\uff1a\u8a66\u85ac\u30b0\u30ec\u30fc\u30c9\u306e\u786b\u9178\u3001\u5b9f\u9a13\u5ba4\u6761\u4ef6\u3002\u30d8\u30a4\u30f3\u30ba\u793e\u306f\u3001\u5de5\u696d\u7528\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u524d\u306b\u5b9f\u5730\u8a66\u9a13\u3092\u884c\u3046\u3053\u3068\u3092\u660e\u78ba\u306b\u63a8\u5968\u3057\u3066\u3044\u308b\u3002.<\/p>\n

\u76ee\u306b\u3064\u304f\u306e\u306f \u30cf\u30b9\u30c6\u30ed\u30a4C-276\u306e\u786b\u9178\u4e2d\u3067\u306e\u8010\u98df\u6027<\/strong> \u306f\u6fc3\u5ea6\u3060\u3051\u3067\u306f\u5236\u5fa1\u3067\u304d\u306a\u3044\u300270wt.%\u9178\u3067\u306f\u3001\u5408\u91d1\u306f79\u2103\u30670.16mm\/y\u300193\u2103\u30670.50mm\/y\u3057\u304b\u793a\u3055\u306a\u3044\u304c\u3001121\u2103\u306713.68mm\/y\u307e\u3067\u6025\u4e0a\u6607\u3059\u308b\u300290wt.%\u9178\u3067\u306f\u3001\u540c\u3058\u5408\u91d1\u306f79\u2103\u3067\u306f\u9a5a\u304f\u307b\u3069\u5feb\u9069\u306b\u898b\u3048\u3001\u6e29\u5ea6\u304c\u4e0a\u6607\u3059\u308b\u306b\u3064\u308c\u3066\u4fdd\u5b88\u7684\u306a\u9577\u5bff\u547d\u9818\u57df\u3092\u8d85\u3048\u3066\u3044\u304f\u3002\u8a00\u3044\u63db\u3048\u308c\u3070\u3001\u6e29\u5ea6\u306f\u901a\u5e38\u3001\u6700\u5f8c\u306e\u5909\u6570\u3067\u306f\u306a\u304f\u3001\u6700\u521d\u306b\u7a81\u304d\u6b62\u3081\u308b\u3079\u304d\u5909\u6570\u3067\u3042\u308b\u3002\u8abf\u9054\u62c5\u5f53\u8005\u304c\u300c\u786b\u9178\u6fc3\u5ea6\u300d\u306e\u307f\u3092\u8981\u6c42\u3057\u3001\u5b9f\u969b\u306e\u71b1\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7\u3092\u7121\u8996\u3059\u308b\u3068\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u30c8\u30e9\u30d6\u30eb\u306b\u5dfb\u304d\u8fbc\u307e\u308c\u308b\u306e\u306f\u307e\u3055\u306b\u3053\u306e\u305f\u3081\u3067\u3042\u308b\u3002.<\/p>\n

\u3082\u3046\u4e00\u3064\u3001\u5b9f\u7528\u7684\u306a\u5de5\u592b\u304c\u3042\u308b\u3002\u7d14\u7c8b\u306a\u786b\u9178\u306e\u30c7\u30fc\u30bf\u306f\u6709\u7528\u3067\u3042\u308b\u304c\u3001\u5de5\u5834\u306e\u9178\u306f\u7d14\u7c8b\u3067\u306a\u3044\u3053\u3068\u304c\u591a\u3044\u3002\u30d8\u30a4\u30f3\u30ba\u6c0f\u306f\u3001C-276\u306e\u3088\u3046\u306aNi-Cr-Mo\u5408\u91d1\u306f\u7d14\u7c8b\u306a\u786b\u9178\u3067\u3082\u9ad8\u3044\u8010\u6027\u3092\u7dad\u6301\u3057\u3001\u30af\u30ed\u30e0\u306f\u5de5\u696d\u7528\u6eb6\u6db2\u306b\u542b\u307e\u308c\u308b\u9178\u5316\u7a2e\u304b\u3089\u3042\u308b\u7a0b\u5ea6\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u6307\u6458\u3057\u3066\u3044\u308b\u3002\u540c\u6642\u306b\u3001\u540c\u3058\u5de5\u696d\u7528\u6eb6\u6db2\u3067\u3082\u3001\u8a66\u85ac\u30b0\u30ec\u30fc\u30c9\u306e\u786b\u9178\u306b\u6bd4\u3079\u308b\u3068\u3001\u306f\u308b\u304b\u306b\u8010\u6027\u304c\u843d\u3061\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u9ad8\u6fc3\u5ea6\u306e\u5de5\u696d\u7528\u786b\u9178\u3001\u7279\u306b\u88fd\u932c\u6240\u306e\u30aa\u30d5\u30ac\u30b9\u306b\u7531\u6765\u3059\u308b92\uff5e99wt.%\u306e\u300c\u8d85\u9178\u5316\u6027\u300d\u7bc4\u56f2\u3067\u306f\u3001\u30cb\u30c3\u30b1\u30eb-\u30af\u30ed\u30e0-\u30e2\u30ea\u30d6\u30c7\u30f3\u5408\u91d1\u306f\u7d0495\u2103\u307e\u3067\u306f\u307e\u3060\u4f7f\u7528\u3067\u304d\u307e\u3059\u304c\u3001\u305d\u308c\u4ee5\u4e0a\u306e\u6e29\u5ea6\u3067\u306f\u4ee3\u66ff\u4fdd\u8b77\u819c\u3092\u5f62\u6210\u3059\u308b\u4ed6\u306e\u6750\u6599\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5883\u754c\u7dda\u306f\u3001\u4e00\u822c\u7684\u306a\u8150\u98df\u30c1\u30e3\u30fc\u30c8\u3067\u306f\u5341\u5206\u3067\u306a\u304f\u306a\u308b\u5834\u6240\u3067\u3042\u308b\u3002.<\/p>\n

\u52a0\u5de5\u696d\u8005\u306b\u3068\u3063\u3066\u3001\u6eb6\u63a5\u70b9\u306f\u540c\u69d8\u306b\u91cd\u8981\u3067\u3042\u308b\u3002\u30d0\u30a4\u30e4\u30fc\u304c\u5bb9\u5668\u3084\u30ce\u30ba\u30eb\u306bC-276\u3092\u6307\u5b9a\u3057\u7d9a\u3051\u308b\u7406\u7531\u306e\u3072\u3068\u3064\u3001, \u30ec\u30c7\u30e5\u30fc\u30b5<\/a>, \u304a\u3088\u3073\u30b9\u30d7\u30fc\u30eb\u30fb\u30a2\u30c3\u30bb\u30f3\u30d6\u30ea\u306f\u3001\u70ad\u7d20\u3068\u30b1\u30a4\u7d20\u304c\u975e\u5e38\u306b \u4f4e\u3044\u305f\u3081\u3001\u6eb6\u63a5\u5f8c\u306e\u8010\u98df\u6027\u3092\u7dad\u6301\u3057\u3084\u3059\u3044\u3002\u30d8\u30a4\u30f3\u30ba\u6c0f\u306e66\u2103\u306e\u786b\u9178\u4e2d\u3067\u306e\u6eb6\u63a5\u8150\u98df\u30c7\u30fc\u30bf \u306b\u3088\u308b\u3068\u3001\u5168\u6eb6\u63a5\u91d1\u5c5e\u306e\u8150\u98df\u901f\u5ea6\u306f\u300130\u304a\u3088\u3073 50wt.%\u9178\u30670.03mm\/y\u300170wt.%\u9178\u30670.13mm\/y\u3001 90wt.%\u9178\u30670.11mm\/y\u3067\u3042\u308b\u3002\u3057\u304b\u3057\u3001\u3053\u308c\u306fC-276\u304c\u786b\u9178\u30e6\u30cb\u30c3\u30c8\u7528\u306e\u52a0\u5de5\u5408\u91d1\u3068\u3057\u3066\u4fe1\u983c\u3067\u304d\u308b\u5f37\u529b\u306a\u7406\u7531\u3067\u3059\u3002.<\/p>\n

\u3067\u306f\u3001\u3069\u3046\u306a\u306e\u304b\uff1f \u30cf\u30b9\u30c6\u30ed\u30a4C-276\u306e\u786b\u9178\u4e2d\u3067\u306e\u8010\u98df\u6027<\/strong> \u3042\u306a\u305f\u306e\u30b5\u30fc\u30d3\u30b9\u306b\u306f\u5341\u5206\u3067\u3059\u304b\uff1f\u3057\u304b\u3057\u3001\u305d\u308c\u306f\u30b5\u30fc\u30d3\u30b9\u3092\u9069\u5207\u306b\u5b9a\u7fa9\u3057\u305f\u5f8c \u306b\u9650\u3089\u308c\u308b\u3002\u6750\u6599\u3092\u30ea\u30ea\u30fc\u30b9\u3059\u308b\u524d\u306b\u30015\u3064\u306e\u5909\u6570\u3092\u5c0b\u306d\u3066\u304f\u3060\u3055\u3044\uff1a\u9178\u306e\u6fc3\u5ea6\u3001\u52d5\u4f5c\u6e29\u5ea6\u3068\u30a2\u30c3\u30d7\u30bb\u30c3\u30c8\u6e29\u5ea6\u3001\u9178\u5316\u6027\u6c5a\u67d3\u7269\u8cea\u3001\u30cf\u30ed\u30b2\u30f3\u5316\u7269\/\u5869\u5316\u7269\u3001\u304a\u3088\u3073\u90e8\u54c1\u304c\u932c\u6210\u307e\u305f\u306f\u591a\u91cf\u306e\u6eb6\u63a5\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3002\u3053\u308c\u3089\u306e\u30a4\u30f3\u30d7\u30c3\u30c8\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308c\u3070\u3001\u6750\u6599\u9078\u5b9a\u306f\u5f53\u3066\u305a\u3063\u307d\u3046\u3067\u306f\u306a\u304f\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306b\u306a\u308a\u307e\u3059\u3002\u6df1\u523b\u306a\u786b\u9178\u696d\u52d9\u3067\u306f\u3001\u901a\u5e38\u3001\u3053\u306e\u9055\u3044\u304c10\u5e74\u306e\u8cc7\u7523\u3068\u9ad8\u4fa1\u306a\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3092\u5206\u3051\u308b\u306e\u3067\u3059\u3002.<\/p>\n

\"\u30cf\u30b9\u30c6\u30ed\u30a4C-276\u306e\u786b\u9178\u4e2d\u3067\u306e\u8010\u98df\u6027\"<\/p>\n

\u7d50\u8ad6<\/h3>\n

\u786b\u9178\u4e2d\u3067\u306f\u3001C-276\u306f\u4e07\u80fd\u3067\u306f\u306a\u304f\u3001\u5229\u5e45\u306e\u5927\u304d\u3044\u30a8 \u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u5408\u91d1\u3068\u3057\u3066\u6700\u3082\u3088\u304f\u7406\u89e3\u3055\u308c\u3066\u3044\u308b\u3002Ni-Cr-Mo-W\u306e\u5316\u5b66\u7684\u6027\u8cea\u306f\u3001\u7279\u306b\u30b9\u30c6\u30f3\u30ec \u30b9\u92fc\u304c\u4f7f\u7528\u3055\u308c\u306a\u304f\u306a\u308b\u3088\u3046\u306a\u5e83\u3044\u7bc4\u56f2\u3092\u30ab\u30d0\u30fc \u3057\u3001\u305d\u306e\u6eb6\u63a5\u6027\u80fd\u306f\u3001C-276\u304c\u3044\u307e\u3060\u306b\u5e83\u304f \u4fe1\u983c\u3055\u308c\u3066\u3044\u308b\u7406\u7531\u306e\u3072\u3068\u3064\u3067\u3042\u308b\u3002\u3057\u304b\u3057\u3001\u6fc3\u5ea6\u3001\u6e29\u5ea6\u3001\u4e0d\u7d14\u7269\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb \u3092\u5b9f\u969b\u306e\u30d7\u30ed\u30bb\u30b9\u6761\u4ef6\u3068\u7167\u3089\u3057\u5408\u308f\u305b\u3066\u691c\u8a0e\u3057\u305f\u5834 \u5408\u306b\u306e\u307f\u3001\u305d\u306e\u6c7a\u5b9a\u306f\u771f\u306b\u4fe1\u983c\u3067\u304d\u308b\u3082\u306e\u306b\u306a \u308b\u3002.<\/p>\n

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

Q1\uff1a\u30cf\u30b9\u30c6\u30ed\u30a4C-276\u306f316L\u3088\u308a\u786b\u9178\u306b\u5f37\u3044\u3067\u3059\u304b\uff1f<\/strong>
\u591a\u304f\u306e\u786b\u9178\u6761\u4ef6\u3067\u306f\u305d\u3046\u3067\u3059\u3002\u30d8\u30a4\u30f3\u30ba\u306e\u6bd4\u8f03\u30d7\u30ed\u30c3\u30c8\u3067\u306f\u3001C-276\u304c\u8a31\u5bb9\u6e29\u5ea6\u7bc4\u56f2\u306b\u304a\u3044\u3066316L\u3092\u5927\u304d\u304f\u4e0a\u56de\u3063\u3066\u304a\u308a\u3001C-276\u304c\u9650\u754c\u306b\u9054\u3059\u308b\u305a\u3063\u3068\u524d\u306b316L\u304c\u9650\u754c\u306b\u9054\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u306e\u306f\u305d\u306e\u305f\u3081\u3067\u3059\u3002.<\/p>\n

Q2\uff1a\u6eb6\u63a5\u30cf\u30b9\u30c6\u30ed\u30a4C-276\u306f\u786b\u9178\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u304b\uff1f<\/strong>
\u52a0\u5de5\u304c\u7ba1\u7406\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u901a\u5e38\u306f\u53ef\u80fd\u3067\u3042 \u308b\u3002\u30d8\u30a4\u30f3\u30ba\u793e\u306e\u30c7\u30fc\u30bf\u3067\u306f\u3001C-276\u6eb6\u63a5\u91d1\u5c5e\u306e66\u2103\u300130\uff5e90wt.%\u786b\u9178\u4e2d\u306b\u304a\u3051\u308b\u8150\u98df\u901f\u5ea6\u306f\u4f4e\u3044\u304c\u3001\u6eb6\u63a5\u54c1\u8cea\u3001\u8868\u9762\u72b6\u614b\u3001\u5b9f\u969b\u306e\u6d41\u308c\u306e\u6c5a\u67d3\u7269\u8cea\u304c\u4f9d\u7136\u3068\u3057\u3066\u91cd\u8981\u3067\u3042\u308b\u3002.<\/p>\n

Q3: \u786b\u9178\u7528\u306bC-276\u3092\u9078\u629e\u3059\u308b\u969b\u306e\u6700\u5927\u306e\u9593\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong>
\u786b\u9178\u3092\u5358\u4e00\u306e\u5a92\u4f53\u3068\u3057\u3066\u6271\u3046\u3053\u3068\u3002\u6e29\u5ea6\u3001\u9178\u5316\u7a2e\u3001\u30cf\u30ed\u30b2\u30f3\u5316\u7269\u3001\u5b9f\u969b\u306e\u30d7\u30e9\u30f3\u30c8\u306e\u4e0d\u7d14\u7269\u306f\u3001\u8150\u98df\u6319\u52d5\u3092\u5287\u7684\u306b\u5909\u5316\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u516c\u79f0H2SO4\u6fc3\u5ea6\u3060\u3051\u3067\u306a\u304f\u3001\u5168\u6db2\u5316\u5b66\u306b\u57fa\u3065\u3044\u3066\u9078\u629e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>","protected":false},"excerpt":{"rendered":"

When engineers ask about Hastelloy C-276 corrosion resistance in sulfuric acid, they are usually not asking a theoretical question. They are trying to stop a very practical failure: leaking transfer lines, exchanger plate loss, unexpected weld attack, or a vessel that looked acceptable on a generic corrosion chart but did not survive real liquor chemistry. C-276 remains one of the most broadly specified Ni-Cr-Mo alloys because its chemistry balances reducing-acid capability with a meaningful tolerance for oxidizing contaminants. But in sulfuric acid service, the correct answer is never just \u201cexcellent.\u201d It depends on concentration, temperature, aeration, and what else is dissolved in the acid. 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