{"id":2829,"date":"2026-03-11T04:33:54","date_gmt":"2026-03-11T03:33:54","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=2829"},"modified":"2026-03-11T04:34:00","modified_gmt":"2026-03-11T03:34:00","slug":"nickel-alloy-corrosion-resistance-comparison","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/ja\/nickel-alloy-corrosion-resistance-comparison\/","title":{"rendered":"\u9178\u306b\u304a\u3051\u308b\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u8010\u98df\u6027\u6bd4\u8f03"},"content":{"rendered":"

\u30a2\u30b0\u30ec\u30c3\u30b7\u30d6\u306a\u5316\u5b66\u51e6\u7406\u74b0\u5883\u306b\u304a\u3051\u308b\u6a5f\u5668\u306e\u6545\u969c\u306f\u3001\u5358\u306b\u4e0d\u4fbf\u3068\u3044\u3046\u3060\u3051\u3067\u306f\u6e08\u307e\u3055\u308c\u305a\u3001\u3057\u3070\u3057\u3070\u81f4\u547d\u7684\u306a\u5b89\u5168\u4e0a\u306e\u5371\u967a\u3084\u83ab\u5927\u306a\u7d4c\u6e08\u7684\u640d\u5931\u3068\u306a\u308a\u307e\u3059\u3002\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u3001\u5b54\u98df\u3001\u9699\u9593\u8150\u98df\u3001\u5869\u5316\u7269\u306b\u3088\u308b\u5fdc\u529b\u8150\u98df\u5272\u308c\uff08SCC\uff09\u306b\u8010\u3048\u308b\u6700\u9069\u306a\u6750\u6599\u306e\u9078\u5b9a\u306b\u5e38\u306b\u982d\u3092\u60a9\u307e\u305b\u3066\u3044\u307e\u3059\u3002\u6b63\u78ba\u306a \u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u8010\u98df\u6027<\/a> \u306e\u6bd4\u8f03\u306f\u3001\u5727\u529b\u5bb9\u5668\u3084\u914d\u7ba1\u306e\u4ed5\u69d8\u3092\u78ba\u5b9a\u3059\u308b\u524d\u306b\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u7570\u306a\u308b\u5316\u5b66\u5a92\u4f53\u306f\u3001\u7279\u5b9a\u306e\u5408\u91d1\u5143\u7d20\u3068\u72ec\u81ea\u306b\u76f8\u4e92\u4f5c\u7528\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u8010\u98df\u6027\u3092\u6bd4\u8f03\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u4e00\u822c\u7684\u306a\u6750\u6599\u30b0\u30ec\u30fc\u30c9\u306b\u4f9d\u5b58\u3059\u308b\u3068\u3001\u65e9\u671f\u52a3\u5316\u306b\u3064\u306a\u304c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u5f37\u9178\u6027\u74b0\u5883\u3067\u306f\u3001\u30af\u30ed\u30e0\u3001\u30e2\u30ea\u30d6\u30c7\u30f3\u3001\u7a92\u7d20 \u306e\u76f8\u4e57\u52b9\u679c\u306b\u3088\u308a\u3001\u91d1\u5c5e\u8868\u9762\u306e\u4e0d\u52d5\u614b\u5316\u6319\u52d5\u304c\u6c7a\u307e \u308a\u307e\u3059\u3002.<\/p>\n

\"\u9178\u306b\u304a\u3051\u308b\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u8010\u98df\u6027\u6bd4\u8f03\"<\/p>\n

\u30cb\u30c3\u30b1\u30eb\u8150\u98df\u74b0\u5883\u306b\u304a\u3051\u308b\u4e3b\u8981\u6307\u6a19<\/h2>\n

\u9084\u5143\u6027\u9178\u306b\u5bfe\u3059\u308b\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u8010\u98df\u6027\u6bd4\u8f03\u3092\u8a55 \u4fa1\u3059\u308b\u5834\u5408\u3001\u57fa\u672c\u7684\u306a\u5f15\u5f35\u5f37\u3055\u3060\u3051\u3067\u306a\u304f\u3001\u8010\u5b54\u98df \u6027\u7b49\u4fa1\u6570(PREN)\u306b\u6ce8\u76ee\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u8010\u98df\u6027\u6bd4\u8f03\u306b\u304a\u3051\u308b\u57fa\u672c\u7684\u306a\u6307\u6a19\u306f\u3001\u3053\u306ePREN\u5024\u3067\u3042\u308a\u3001%Cr+3.3(%Mo)+16(%N)\u3068\u3057\u3066\u6b63\u78ba\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002PREN\u306f\u7406\u8ad6\u7684\u306a\u57fa\u6e96\u5024\u3092\u63d0\u4f9b\u3057\u307e\u3059\u304c\u3001\u771f\u306e\u30cb\u30c3 \u30b1\u30eb\u5408\u91d1\u306e\u8010\u98df\u6027\u6bd4\u8f03\u306b\u306f\u3001\u9ad8\u6e29\u3067\u8150\u98df\u5a92\u4f53\u306e\u6fc3 \u5ea6\u3092\u5909\u5316\u3055\u305b\u305f\u5834\u5408\u306e\u6750\u6599\u306e\u6319\u52d5\u3092\u8abf\u3079\u308b\u5fc5\u8981\u304c\u3042 \u308a\u307e\u3059\u3002.<\/p>\n

\u4f8b\u3048\u3070\u3001Alloy 600 (UNS N06600)\u306f\u3001\u9ad8\u7d14\u5ea6\u6c34\u3084\u30a2\u30eb\u30ab\u30ea\u6027\u6761\u4ef6\u306b\u306f\u512a\u308c\u305f\u8010\u6027\u3092\u793a\u3057\u307e\u3059\u304c\u3001\u9ad8\u5408\u91d1\u30b0\u30ec\u30fc\u30c9\u3068\u6bd4\u8f03\u3059\u308b\u3068\u3001\u53b3\u3057\u3044\u9178\u6027\u74b0\u5883\u3067\u306f\u82e6\u6226\u3057\u307e\u3059\u3002\u793e\u5185\u306e\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u8010\u98df\u6027\u6bd4\u8f03\u30c7\u30fc\u30bf\u3092\u8abf\u3079\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30e2\u30ea\u30d6\u30c7\u30f3\u30ea\u30c3\u30c1\u5408\u91d1\u306e\u512a\u4f4d\u6027\u304c\u308f\u304b\u308a\u307e\u3059\u3002 \u30cf\u30b9\u30c6\u30ed\u30a4 C-276<\/a> (UNS N10276)\u306e\u5c40\u90e8\u7684\u306a\u8150\u98df\u74b0\u5883\u306b\u304a\u3051\u308b\u8010\u6027\u306f\u5426\u5b9a\u3067\u304d\u306a\u3044\u3002C-276\u306f\u3001\u6e7f\u3063\u305f\u5869\u7d20\u30ac\u30b9\u3001\u6b21\u4e9c\u5869\u7d20\u9178\u5869\u3001\u4e8c\u9178\u5316\u5869\u7d20\u6eb6\u6db2\u306b\u5bfe\u3057\u3066\u5353\u8d8a\u3057\u305f\u8010\u6027\u3092\u793a\u3057\u307e\u3059\u3002\u9006\u306b\u3001\u30cf\u30b9\u30c6\u30ed\u30a4B-3\u306f\u3001\u3042\u3089\u3086\u308b\u6fc3\u5ea6\u3068\u6e29\u5ea6\u3067\u5869\u9178\u7528\u306b\u7279\u5225\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u9178\u5316\u6027\u5a92\u4f53\u3067\u306f\u6027\u80fd\u304c\u8457\u3057\u304f\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u5f93\u3063\u3066\u3001\u4ee5\u4e0b\u306e\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u8010\u98df\u6027\u6bd4\u8f03\u8868\u3092\u691c\u8a0e\u3059\u308b\u3053\u3068\u306f\u3001\u5fae\u7d30\u69cb\u9020\u3092\u6b63\u78ba\u306a\u5316\u5b66\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306b\u9069\u5408\u3055\u305b\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n\n\n\n\n\n\n\n\n\n
\u5408\u91d1\u30b0\u30ec\u30fc\u30c9<\/strong><\/td>\nUNS\u756a\u53f7<\/strong><\/td>\n\u516c\u79f0Cr (%)<\/strong><\/td>\n\u516c\u79f0Mo (%)<\/strong><\/td>\nPREN\uff08\u7d04\uff09<\/strong><\/td>\n\u6700\u9ad8\u306e\u30b5\u30fc\u30d3\u30b9\u74b0\u5883<\/strong><\/td>\n<\/tr>\n<\/thead>\n
\u30a2\u30ed\u30a4400<\/span><\/td>\nN04400<\/span><\/td>\n0<\/span><\/td>\n0<\/span><\/td>\n0<\/span><\/td>\n\u30d5\u30c3\u5316\u6c34\u7d20\u9178\u3001\u6d77\u6d0b<\/span><\/td>\n<\/tr>\n
\u30a2\u30ed\u30a4600<\/span><\/td>\nN06600<\/span><\/td>\n15.5<\/span><\/td>\n0<\/span><\/td>\n15.5<\/span><\/td>\n\u9ad8\u7d14\u5ea6\u6c34\u3001\u4e7e\u71e5Cl<\/span><\/td>\n<\/tr>\n
\u30a2\u30ed\u30a4625<\/span><\/td>\nN06625<\/span><\/td>\n21.5<\/span><\/td>\n9.0<\/span><\/td>\n~51<\/span><\/td>\n\u6d77\u6c34\u3001\u9178\u5316\u6027\u9178<\/span><\/td>\n<\/tr>\n
\u30a2\u30ed\u30a4825<\/span><\/td>\nN08825<\/span><\/td>\n21.5<\/span><\/td>\n3.0<\/span><\/td>\n~31<\/span><\/td>\n\u786b\u9178\u3001\u30ea\u30f3\u9178<\/span><\/td>\n<\/tr>\n
\u30cf\u30b9\u30c6\u30ed\u30a4 C-276<\/span><\/td>\nN10276<\/span><\/td>\n15.5<\/span><\/td>\n16.0<\/span><\/td>\n~68<\/span><\/td>\n\u6e7f\u3063\u305f\u5869\u7d20\u3001\u5f37\u3044\u9178\u5316\u5264<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u9ad8\u6e29\u9178\u306e\u6027\u80fd\u8a55\u4fa1<\/h2>\n

\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u8010\u98df\u6027\u6bd4\u8f03\u3092\u52b9\u679c\u7684\u306b\u5229\u7528\u3059\u308b\u305f \u3081\u306b\u306f\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u7279\u5b9a\u306e\u4f7f\u7528\u6e29\u5ea6\u306b\u5bfe\u3059\u308b\u7b49 \u8150\u98df\u66f2\u7dda\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5178\u578b\u7684\u306a\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u306f\u30010.1 mm\/\u5e74 (4 mpy)\u306e\u8150\u98df\u901f\u5ea6\u306e\u7b49\u9ad8\u7dda\u3067\u3059\u3002\u7d14\u7c8b\u306b\u7406\u8ad6\u7684\u306a\u30c7\u30fc\u30bf\u3060\u3051\u3067\u306a\u304f\u3001\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e \u8010\u98df\u6027\u3092\u6bd4\u8f03\u3059\u308b\u306b\u306f\u3001\u5fae\u91cf\u4e0d\u7d14\u7269\u306e\u5f71\u97ff\u3092\u7406\u89e3 \u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5869\u9178\u306b\u542b\u307e\u308c\u308b\u9244\u30a4\u30aa\u30f3\u3084\u9285\u30a4\u30aa\u30f3\u306f\u3001\u4e88\u671f\u305b\u305a\u74b0\u5883\u3092\u9084\u5143\u6027\u304b\u3089\u9178\u5316\u6027\u3078\u3068\u5909\u5316\u3055\u305b\u3001\u5408\u91d1B-3\u306e\u8150\u98df\u901f\u5ea6\u3092\u6025\u901f\u306b\u52a0\u901f\u3055\u305b\u307e\u3059\u304c\u3001\u5408\u91d1C-276\u306f\u9a5a\u304f\u307b\u3069\u5b89\u5b9a\u3057\u305f\u307e\u307e\u3067\u3059\u3002.<\/p>\n

Furthermore, let’s consider harsh sulfuric acid applications. Alloy 825 is traditionally deployed here due to its specific copper addition, which significantly enhances resistance in reducing environments. However, as the concentration and temperature cross the 80\u00b0C threshold at 40% concentration, an in-depth nickel alloy corrosion resistance comparison will steer engineers toward Alloy G-30 or Alloy 625. These metallurgical transitions highlight exactly why a simple datasheet is never enough. The passive oxide layer’s stability is highly dependent on both temperature fluctuations and fluid velocity, parameters that must be modeled accurately in any rigorous analysis.<\/p>\n

\"\u9178\u306b\u304a\u3051\u308b\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u8010\u98df\u6027\u6bd4\u8f03\"<\/p>\n

\u5408\u91d1\u5fdc\u529b\u8150\u98df\u5272\u308c\u62b5\u6297\u6027<\/h2>\n

\u3053\u308c\u3089\u306e\u6750\u6599\u3092\u8a55\u4fa1\u3059\u308b\u3082\u3046\u4e00\u3064\u306e\u91cd\u8981\u306a\u5074\u9762\u306f\u3001 \u5869\u5316\u7269\u306b\u3088\u308b\u5fdc\u529b\u8150\u98df\u5272\u308c(SCC)\u306b\u5bfe\u3059\u308b\u611f\u53d7\u6027\u3067 \u3042\u308b\u3002304\u3084316\u306e\u3088\u3046\u306a\u6a19\u6e96\u7684\u306a\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8\u7cfb\u30b9\u30c6 \u30f3\u30ec\u30b9\u92fc\u306f\u3001\u9ad8\u6e29\u5869\u5316\u7269\u74b0\u5883\u3067\u306eSCC\u7834\u58ca\u3067\u60aa\u540d \u9ad8\u3044\u3002\u30d9\u30fc\u30b9\u3068\u306a\u308b\u30cb\u30c3\u30b1\u30eb\u542b\u6709\u91cf\u3092\u5927\u5e45\u306b\u5897\u52a0 \u3055\u305b\u308b\u3053\u3068\u3067\u3001\u3053\u308c\u3089\u306e\u9ad8\u5ea6\u5408\u91d1\u306f\u3001\u5869\u5316\u7269\u5fdc\u529b\u8150 \u98df\u5272\u308c\u306b\u5bfe\u3057\u3066\u307b\u307c\u7121\u5bb3\u306a\u9818\u57df\u3078\u3068\u79fb\u884c\u3059\u308b\u3002\u5408\u91d1625\u3068\u5408\u91d1C-276\u306f\u3001\u305d\u308c\u305e\u308c\u7d04 58%\u306857%\u306e\u30cb\u30c3\u30b1\u30eb\u3092\u542b\u6709\u3057\u3001\u30aa\u30d5\u30b7\u30e7\u30a2 \u306e\u30c8\u30c3\u30d7\u30b5\u30a4\u30c9\u30d7\u30ed\u30bb\u30b9\u3084\u3001H2S\u3068CO2\u306e\u9ad8\u5206\u5727\u3092 \u4f34\u3046\u30c0\u30a6\u30f3\u30db\u30fc\u30eb\u306e\u30b5\u30ef\u30fc\u30ac\u30b9\u74b0\u5883\u306b\u304a\u3044\u3066\u3001\u3053 \u306e\u91cd\u8981\u306a\u4fdd\u8b77\u6a5f\u80fd\u3092\u63d0\u4f9b\u3059\u308b\u3002.<\/p>\n

\u3055\u3089\u306b\u3001\u69cb\u9020\u7269\u6eb6\u63a5\u4e2d\u306e\u71b1\u5b89\u5b9a\u6027\u306f\u3001\u52a0\u5de5\u696d\u8005 \u306b\u3068\u3063\u3066\u6700\u3082\u91cd\u8981\u306a\u95a2\u5fc3\u4e8b\u3067\u3042\u308b\u3002\u7c92\u754c\u306b\u30af\u30ed\u30e0\u70ad\u5316\u7269\u304c\u6790\u51fa\u3059\u308b\u92ed\u654f\u5316 \u306f\u3001\u71b1\u5f71\u97ff\u90e8(HAZ)\u306e\u6df1\u523b\u306a\u7c92\u754c\u8150\u98df\u306b\u3064\u306a\u304c\u308b \u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u5f53\u793e\u306e\u6280\u8853\u7684\u306a\u6750\u6599\u9078\u629e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u3053\u306e\u56fa\u6709\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u306b\u3001\u4f4e\u70ad\u7d20\u307e\u305f\u306f\u30c1\u30bf\u30f3\/\u30cb\u30aa\u30d6\u5b89\u5b9a\u5316\u30b0\u30ec\u30fc\u30c9\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3092\u4e00\u8cab\u3057\u3066\u5f37\u8abf\u3057\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u6700\u65b0\u306eC-276\u306f\u3001\u70ad\u7d20\u3068\u30b1\u30a4\u7d20\u306e\u542b\u6709\u91cf\u304c\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u6eb6\u63a5\u4e2d\u306e\u7c92\u754c\u6790\u51fa\u304c\u9632\u6b62\u3055\u308c\u3001\u6eb6\u63a5\u5f8c\u306e\u71b1\u51e6\u7406\u3092\u5fc5\u8981\u3068\u305b\u305a\u3001\u6eb6\u63a5\u307e\u307e\u306e\u72b6\u614b\u3067\u5316\u5b66\u30d7\u30ed\u30bb\u30b9\u7528\u9014\u306b\u975e\u5e38\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n

\u7d50\u8ad6<\/h2>\n

\u7d50\u5c40\u306e\u3068\u3053\u308d\u3001\u6b63\u3057\u3044\u5727\u529b\u5bb9\u5668\u3084\u914d\u7ba1\u6750 \u6599\u3092\u6307\u5b9a\u3059\u308b\u306b\u306f\u3001\u5316\u5b66\u6210\u5206\u8868\u3092\u3056\u3063\u3068\u773a\u3081\u308b \u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u306b\u306f\u3001\u304a\u5ba2\u69d8\u72ec\u81ea\u306e\u6d41\u4f53\u30b7\u30b9\u30c6\u30e0\u306e\u6b63\u78ba\u306a\u71b1\u529b\u5b66\u3068\u52d5\u529b\u5b66\u306b\u5408\u308f\u305b\u305f\u3001\u53b3\u5bc6\u3067\u30c7\u30fc\u30bf\u306b\u88cf\u6253\u3061\u3055\u308c\u305f\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u8010\u98df\u6027\u6bd4\u8f03\u304c\u5fc5\u8981\u3067\u3059\u3002\u904e\u5270\u5408\u91d1\u306f\u3001\u904b\u8ee2\u4e0a\u306e\u6b63\u5f53\u306a\u7406\u7531\u306a\u3057\u306b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8cc7\u672c\u652f\u51fa\u3092\u5927\u5e45\u306b\u5897\u52a0\u3055\u305b\u3001\u4e00\u65b9\u3001\u904e\u5c0f\u5408\u91d1\u306f\u3001\u81f4\u547d\u7684\u306a\u6545\u969c\u3068\u65bd\u8a2d\u306e\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u3092\u62db\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u5834\u5408 \u30ab\u30b9\u30bf\u30e0<\/a> metallurgical analysis engineered strictly for your facility’s exact operational parameters, reach out to the materials engineering team at 28Nickel. We provide deep technical assessments, localized corrosion modeling, and metallurgical guidance to ensure your next critical deployment is engineered for maximum longevity and absolute safety.<\/p>\n

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

Q1: \u306a\u305c\u6e7f\u5869\u7d20\u74b0\u5883\u3067\u306f\u5408\u91d1C-276\u304c\u5408\u91d1625\u3088\u308a\u597d\u307e\u308c\u308b\u306e\u3067\u3059\u304b\uff1f<\/b><\/p>\n

A: \u4e21\u8005\u3068\u3082\u9ad8\u5ea6\u306b\u5408\u91d1\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001C-276\u306f\u30e2\u30ea\u30d6\u30c7\u30f3\u542b\u6709\u91cf\u304c\u9ad8\u304f\uff089%\u306b\u5bfe\u3057\u306616%\uff09\u3001\u610f\u56f3\u7684\u306b\u30bf\u30f3\u30b0\u30b9\u30c6\u30f3\u3092\u6dfb\u52a0\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u7279\u6b8a\u306a\u30df\u30af\u30ed\u69cb\u9020\u306b\u3088\u308a\u3001\u6e7f\u5f0f\u5869\u7d20\u30ac\u30b9\u306e\u3088\u3046\u306a\u9178\u5316\u529b\u304c\u5f37\u304f\u3001\u5869\u5316\u7269\u3092\u591a\u304f\u542b\u3080\u5a92\u4f53\u4e2d\u3067\u3001\u5c40\u90e8\u7684\u306a\u5b54\u98df\u3084\u9699\u9593\u8150\u98df\u306b\u5bfe\u3057\u3066\u975e\u5e38\u306b\u512a\u308c\u305f\u8010\u6027\u3092\u767a\u63ee\u3057\u307e\u3059\u3002.<\/p>\n

Q2\uff1a\u5869\u9178\u3068\u785d\u9178\u3092\u542b\u3080\u74b0\u5883\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u304b\uff1f<\/b><\/p>\n

A: \u3044\u3044\u3048\u3001B-3\u5408\u91d1\u306f\u672a\u30a8\u30a2\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u5869\u9178\u306e\u3088\u3046\u306a\u7d14\u7c8b\u306a\u9084\u5143\u6027\u74b0\u5883\u7528\u306b\u72ec\u81ea\u306b\u8abf\u5408\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u785d\u9178\u3084\u5fae\u91cf\u306e\u7b2c\u4e8c\u9244\u30a4\u30aa\u30f3\u306a\u3069\u306e\u9178\u5316\u5264\u304c\u5b58\u5728\u3059\u308b\u3068\u3001\u305d\u306e\u4fdd\u8b77\u4e0d\u52d5\u614b\u5c64\u304c\u7834\u58ca\u3055\u308c\u3001\u6025\u901f\u3067\u58ca\u6ec5\u7684\u306a\u5747\u4e00\u8150\u98df\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002.<\/p>\n

Q3: PREN\u5024\u306f\u3001\u5b9f\u969b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u6027\u80fd\u3092\u3069\u306e\u3088\u3046\u306b\u6b63\u78ba\u306b\u4e88\u6e2c\u3059\u308b\u306e\u3067\u3059\u304b\uff1f<\/b><\/p>\n

A: PREN (Pitting Resistance Equivalent Number)\u306f\u3001\u7d14\u7c8b\u306b\u7d4c\u9a13\u7684\u306a\u8a08\u7b97(%Cr + 3.3%Mo + 16%N)\u3067\u3001\u5c40\u6240\u7684\u306a\u8010\u98df\u6027\u3092\u30e9\u30f3\u30af\u4ed8\u3051\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u521d\u671f\u30b9\u30af\u30ea\u30fc\u30cb\u30f3\u30b0\u306b\u306f\u6700\u9069\u3067\u3059\u304c\u3001\u4f7f\u7528\u6e29\u5ea6\u3001\u6d41\u4f53\u901f\u5ea6\u3001\u76f8\u4e57\u5316\u5b66\u53cd\u5fdc\u3092\u8003\u616e\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u6700\u7d42\u7684\u306a\u691c\u8a3c\u306b\u306f\u7b49\u8150\u98df\u66f2\u7dda\u304c\u5fc5\u8981\u3067\u3059\u3002.<\/p>","protected":false},"excerpt":{"rendered":"

Equipment failure in aggressive chemical processing environments is rarely just an inconvenience; it is often a catastrophic safety hazard and a massive financial drain. Engineers constantly grapple with selecting the optimal material to withstand pitting, crevice corrosion, and chloride-induced stress corrosion cracking (SCC). Conducting a precise nickel alloy corrosion resistance comparison is critical before finalizing any pressure vessel or piping specification. Different chemical media interact uniquely with specific alloying elements. Therefore, relying on generic material grades without a targeted nickel alloy corrosion resistance comparison often leads to premature degradation. In highly acidic environments, the synergistic effects of chromium, molybdenum, and nitrogen dictate the passivation behavior of the metal surface. Key […]<\/p>","protected":false},"author":1,"featured_media":2830,"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-2829","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"spectra_custom_meta":{"_edit_lock":["1773199899:1"],"_edit_last":["1"],"rank_math_seo_score":["77"],"rank_math_description":["Struggling with premature pitting? 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Engineers constantly grapple with selecting the optimal material to withstand pitting, crevice corrosion, and chloride-induced stress corrosion cracking (SCC). Conducting a precise nickel alloy corrosion resistance comparison is critical before finalizing…","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2829","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=2829"}],"version-history":[{"count":1,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2829\/revisions"}],"predecessor-version":[{"id":2832,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2829\/revisions\/2832"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/media\/2830"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/media?parent=2829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/categories?post=2829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/tags?post=2829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}