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<\/p>\n\u5316\u5b66\u51e6\u7406\u74b0\u5883\u3067\u306f\u3001\u59a5\u5354\u306e\u306a\u3044\u6750\u6599\u9078\u629e\u304c\u8981\u6c42 \u3055\u308c\u308b\u3002\u9ad8\u6e29\u306e\u786b\u9178\u3001\u5869\u9178\u3001\u30ea\u30f3\u9178\u306e\u3088\u3046\u306a\u4fb5\u98df\u6027\u306e \u9ad8\u3044\u5a92\u4f53\u3092\u6271\u3046\u5834\u5408\u3001\u6a19\u6e96\u7684\u306a\u30aa\u30fc\u30b9\u30c6\u30ca\u30a4\u30c8 \u7cfb\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u306f\u6025\u901f\u306a\u967d\u6975\u6eb6\u89e3\u3092\u8d77\u3053\u3059\u3002\u30cf\u30ed\u30b2\u30f3\u5316\u7269\u30a4\u30aa\u30f3\u304c\u5b58\u5728\u3059\u308b\u3068\u3001\u4e0d\u52d5\u614b\u9178\u5316 \u5c64\u304c\u7a4d\u6975\u7684\u306b\u7834\u58ca\u3055\u308c\u3001\u81f4\u547d\u7684\u306a\u5c40\u90e8\u7684\u5b54\u98df\u304c \u767a\u751f\u3059\u308b\u3002\u305d\u306e\u305f\u3081\u3001\u9069\u5207\u306a \u9178\u6027\u74b0\u5883\u7528\u30cb\u30c3\u30b1\u30eb\u5408\u91d1<\/b> \u306e\u64cd\u4f5c\u306f\u3001\u5358\u306b\u6a5f\u5668\u306e\u5bff\u547d\u3092\u5ef6\u3070\u3059\u3068\u3044\u3046\u3060\u3051\u3067\u306a\u304f\u3001\u69cb\u9020\u7684\u306a\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306e\u57fa\u672c\u3067\u3042\u308b\u3002\u4f4epH\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u6750\u6599\u306e\u4e0d\u5177\u5408\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u7279\u5b9a\u306e\u5fae\u7d30\u69cb\u9020\u306e\u5408\u91d1\u5143\u7d20\u304c\u8150\u98df\u5a92\u4f53\u306e\u71b1\u529b\u5b66\u3068\u3069\u306e\u3088\u3046\u306b\u76f8\u4e92\u4f5c\u7528\u3059\u308b\u304b\u306b\u3064\u3044\u3066\u306e\u6839\u672c\u7684\u306a\u8aa4\u89e3\u304b\u3089\u751f\u3058\u3066\u3044\u307e\u3059\u3002.<\/p>\n
<\/p>\n
\u9178\u306b\u3088\u308b\u8150\u98df\u306b\u5bfe\u3059\u308b\u51b6\u91d1\u7684\u9632\u5fa1\u306f\u3001\u30cb\u30c3\u30b1\u30eb (Ni)\u3001\u30e2\u30ea\u30d6\u30c7\u30f3(Mo)\u3001\u30af\u30ed\u30e0(Cr)\u306e\u76f8\u4e57\u7684\u5408\u91d1\u5316\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u3066\u3044\u308b\u3002\u9ad8\u3044\u30cb\u30c3\u30b1\u30eb\u542b\u6709\u91cf\u306f\u3001\u9ad8\u6e29\u306e\u9178\u306e\u6d41\u308c\u3067\u8513\u5ef6\u3059\u308b\u5869\u5316\u7269\u5fdc\u529b\u8150\u98df\u5272\u308c\uff08CSCC\uff09\u306b\u62b5\u6297\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u71b1\u529b\u5b66\u7684\u5b89\u5b9a\u6027\u3092\u63d0\u4f9b\u3059\u308b\u3002\u3042\u3089\u3086\u308b \u9178\u6027\u74b0\u5883\u7528\u30cb\u30c3\u30b1\u30eb\u5408\u91d1<\/b> \u30b5\u30fc\u30d3\u30b9\u306b\u304a\u3044\u3066\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u8010\u5b54\u98df\u6027\u7b49\u4fa1\u6570\uff08PREN\uff09\u3092\u983b\u7e41\u306b\u53c2\u7167\u3059\u308b\u3002\u3057\u304b\u3057\u3001\u53b3\u5bc6\u306b\u9084\u5143\u6027\u306e\u9178\u3092\u6271\u3046\u5834\u5408\u3001PREN\u3060\u3051\u3067\u306f\u57fa\u672c\u7684\u306b\u4e0d\u5341\u5206\u3067\u3042\u308b\u3002\u30e2\u30ea\u30d6\u30c7\u30f3\u306f\u8150\u98df\u96fb\u4f4d\u3092\u8cb4\u91d1\u5c5e\u65b9\u5411\u306b\u30b7\u30d5\u30c8\u3055\u305b\u3001\u975e\u9178\u5316\u6027\u9178\u306b\u304a\u3051\u308b\u30a2\u30ce\u30fc\u30c9\u901f\u5ea6\u8ad6\u3092\u7a4d\u6975\u7684\u306b\u6e1b\u901f\u3055\u305b\u308b\u3002\u3055\u3089\u306b\u3001\u6750\u6599\u306e\u71b1\u5c65\u6b74\u304c\u73fe\u5834\u3067\u306e\u6027\u80fd\u3092\u5de6\u53f3\u3059\u308b\u3002\u4e0d\u9069\u5207\u306a\u71b1\u51e6\u7406\u306f\u3001\u7c92\u754c\u306b\u6cbf\u3063\u3066Mu\u76f8\u306e\u3088\u3046\u306a\u6709\u5bb3\u306a\u30c8\u30dd\u30ed\u30b8\u30ab\u30eb\u30fb\u30af\u30ed\u30fc\u30b9\u30d1\u30c3\u30af(TCP)\u76f8\u3092\u6790\u51fa\u3055\u305b\u308b\u3002\u3053\u308c\u306f\u3001\u96a3\u63a5\u3059\u308b\u9818\u57df\u306eMo\u3068Cr\u3092\u67af\u6e07\u3055\u305b\u3001\u6df1\u523b\u306a\u7c92\u754c\u8150\u98df\uff08IGC\uff09\u3092\u5f15\u304d\u8d77\u3053\u3059\u3002.<\/p>\n \u672a\u52a0\u5de5\u306e\u8150\u98df\u30c7\u30fc\u30bf\u3092\u8abf\u3079\u308b\u3068\u3001\u6027\u80fd\u306e\u5883\u754c\u304c\u660e \u3089\u304b\u306b\u306a\u308a\u307e\u3059\u3002\u6cb8\u9a3010%\u786b\u9178\u4e2d\u3067\u306f\u3001\u5408\u91d1C-276\u306f2mpy\u4ee5\u4e0b\u306e\u8150\u98df\u901f\u5ea6\u3092\u7dad\u6301\u3057\u307e\u3059\u3002\u3053\u306e\u512a\u308c\u305f\u8010\u98df\u6027\u306f\u3001\u4e3b\u306b\u30e2\u30ea\u30d6\u30c7\u30f3\u30684%\u306e\u30bf\u30f3\u30b0\u30b9\u30c6\u30f3(W)\u306e\u9ad8\u3044\u542b\u6709\u91cf\u306b\u3088\u308b\u3082\u306e\u3067\u3059\u3002\u30bf\u30f3\u30b0\u30b9\u30c6\u30f3\u306fMo\u3068\u76f8\u4e57\u7684\u306b\u4f5c\u7528\u3057\u3001\u4e0d\u52d5\u614b\u76ae\u819c\u3092\u5b89\u5b9a\u5316\u3055\u305b\u3001\u5f37\u9178\u6027\u6761\u4ef6\u4e0b\u3067\u306e\u5c40\u90e8\u7684\u306a\u8150\u98df\u3092\u6291\u5236\u3057\u307e\u3059\u3002\u9006\u306b\u3001Ni-Cu\u7cfb\u306eAlloy 400\u306f\u3001\u30d5\u30c3\u5316\u6c34\u7d20\u9178\u306e\u9084\u5143\u306b\u512a\u308c\u308b\u304c\u3001\u9ad8\u6fc3\u5ea6\u306e\u7a7a\u6c17\u3092\u542b\u3080\u9178\u5316\u6027\u306e\u9178\u3067\u306f\u6025\u901f\u3067\u6fc0\u3057\u3044\u52a3\u5316\u3092\u8d77\u3053\u3059\u3002\u5c0e\u5165\u3055\u308c\u305f\u9178\u7d20\u306f\u4ee3\u66ff\u30ab\u30bd\u30fc\u30c9\u53cd\u5fdc\u7269\u8cea\u3068\u3057\u3066\u4f5c\u7528\u3057\u3001\u30a2\u30ce\u30fc\u30c9\u6eb6\u89e3\u3092\u8457\u3057\u304f\u4fc3\u9032\u3059\u308b\u3002.<\/p>\n \u30e2\u30c0\u30f3\u3092\u9078\u3076 \u9178\u6027\u74b0\u5883\u7528\u30cb\u30c3\u30b1\u30eb\u5408\u91d1<\/b> \u5408\u91d122\uff08UNS N06022\uff09\u306e\u3088\u3046\u306a\u7528\u9014\u3067\u306f\u3001\u6700\u9069\u5316\u3055\u308c\u305f\u7d44\u6210\u306b\u3088\u308a\u7c92\u754c\u653b\u6483\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3057\u307e\u3059\u3002\u5408\u91d122\u306f\u3001\u901a\u5e38\u5408\u91d1B-2\u306e\u3088\u3046\u306a\u7d14\u7c8b\u306aMo\u542b\u6709\u5408\u91d1\u3092\u7834\u58ca\u3059\u308b\u9244\u30a4\u30aa\u30f3\u3084\u9285\u30a4\u30aa\u30f3\u306e\u3088\u3046\u306a\u9178\u5316\u6027\u4e0d\u7d14\u7269\u3092\u542b\u3080\u8907\u96d1\u306a\u6df7\u5408\u9178\u306e\u6d41\u308c\u306b\u3082\u8010\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u8010\u85ac\u54c1\u6027\u3068\u5171\u306b\u6a5f\u68b0\u7684\u5b8c\u5168\u6027\u3082\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u9ad8\u901f\u306e\u9178\u306e\u6d41\u308c\u306b\u3055\u3089\u3055\u308c\u305f\u90e8\u54c1\u306f\u3001\u4fb5\u98df\u8150\u98df\u306b\u898b\u821e\u308f\u308c\u3001\u4e0d\u50cd\u614b\u76ae\u819c\u304c\u5f62\u6210\u3055\u308c\u308b\u3088\u308a\u3082\u65e9\u304f\u5265\u96e2\u3057\u307e\u3059\u3002\u30e2\u30ea\u30d6\u30c7\u30f3\u304c\u63d0\u4f9b\u3059\u308b\u56fa\u6eb6\u5f37\u5316\u306f\u3001\u964d\u4f0f\u5f37\u5ea6\u3092\u9ad8\u3081\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u4fdd\u8b77\u9178\u5316\u7269\u5c64\u306e\u305b\u3093\u65ad\u8010\u6027\u3092\u5f37\u5316\u3057\u307e\u3059\u3002\u7279\u5b9a\u306e \u9178\u6027\u74b0\u5883\u7528\u30cb\u30c3\u30b1\u30eb\u5408\u91d1<\/b> \u306e\u6761\u4ef6\u3067\u306f\u3001\u6b63\u78ba\u306a\u9178\u6fc3\u5ea6\u3001\u6e29\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3001\u6d41\u901f\u3001\u66dd\u6c17\u72b6\u614b\u3092\u7b49\u8150\u98df\u30c1\u30e3\u30fc\u30c8\u306b\u76f4\u63a5\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002.<\/p>\n \u6975\u7aef\u306apH\u6761\u4ef6\u4e0b\u3067\u306e\u6750\u6599\u306e\u4ed5\u69d8\u306f\u3001\u8aa4\u5dee\u3092\u30bc\u30ed\u306b\u3059\u308b\u3002\u64cd\u4f5c\u6e29\u5ea6\u306e\u516c\u79f0\u504f\u5dee\u3084\u5fae\u91cf\u89e6\u5a92\u306e\u610f\u56f3\u3057\u306a\u3044\u5c0e\u5165\u306f\u3001\u6750\u6599\u3092Pourbaix\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\u4e0a\u306e\u53d7\u52d5\u72b6\u614b\u304b\u3089\u6d3b\u6027\u72b6\u614b\u3078\u3068\u7a81\u7136\u30b7\u30d5\u30c8\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u300228Nickel\u3067\u306f\u3001\u5f53\u793e\u306e\u51b6\u91d1\u5de5\u5b66\u30c1\u30fc\u30e0\u304c\u3001\u6d41\u901f\u304b\u3089\u5fae\u91cf\u6c5a\u67d3\u7269\u8cea\u307e\u3067\u3001\u304a\u5ba2\u69d8\u306e\u7279\u5b9a\u306e\u30d7\u30ed\u30bb\u30b9\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u5206\u6790\u3057\u3001\u6b63\u78ba\u306a \u9178\u6027\u74b0\u5883\u7528\u30cb\u30c3\u30b1\u30eb\u5408\u91d1<\/b> \u7d76\u5bfe\u7684\u306a\u69cb\u9020\u7684\u5b8c\u5168\u6027\u3068\u30d7\u30ed\u30bb\u30b9\u306e\u5b89\u5168\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u8a73\u7d30\u306a\u7b49\u8150\u98df\u66f2\u7dda\u3001\u5fdc\u529b\u7de9\u548c\u6226\u7565\u3001\u304a\u5ba2\u69d8\u306e\u539f\u5b50\u7089\u8a2d\u8a08\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u7279\u5316\u3057\u305f\u6a5f\u68b0\u7684\u30c7\u30fc\u30bf\u306b\u3064\u3044\u3066\u306f\u3001\u5f53\u793e\u306e\u30c6\u30af\u30cb\u30ab\u30eb\u30b5\u30dd\u30fc\u30c8\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002.<\/p>\n Q1: PREN\u304c\u9ad8\u3051\u308c\u3070\u9ad8\u3044\u307b\u3069\u3001\u9178\u6027\u74b0\u5883\u7528\u306e\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306e\u6027\u80fd\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u306e\u3067\u3059\u304b\uff1f<\/b><\/p>\n \u5fc5\u305a\u3057\u3082\u305d\u3046\u3067\u306f\u306a\u3044\u3002PREN\u306e\u516c\u5f0f(PREN<\/span>=<\/span><\/span>%<\/span>C<\/span>r<\/span>+<\/span><\/span>3.3<\/span>\u00d7<\/span><\/span>%<\/span>M<\/span>o<\/span>+<\/span><\/span>16<\/span>\u00d7<\/span><\/span>%<\/span>N<\/span><\/span><\/span><\/span><\/span>)\u306f\u3001\u4e3b\u306b\u5869\u5316\u7269\u3092\u542b\u3080\u74b0\u5883\u3067\u306e\u5c40\u6240\u7684\u306a\u5b54\u98df\u306b\u5bfe\u3059\u308b\u8010\u6027\u3092\u4e88\u6e2c\u3059\u308b\u3002\u7d14\u7c8b\u306a\u9084\u5143\u6027\u9178\u3067\u306f\u3001\u30cb\u30c3\u30b1\u30eb\u542b\u6709\u91cf\u3068\u30e2\u30ea\u30d6\u30c7\u30f3\u6fc3 \u5ea6\u304c\u3001\u30af\u30ed\u30e0\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u8150\u98df\u901f\u5ea6\u3092\u5de6\u53f3\u3059\u308b\u3002\u30af\u30ed\u30e0\u306f\u3001\u9178\u306e\u6d41\u308c\u304c\u9178\u5316\u6027\u3067\u3042\u308b\u5834\u5408\u306b\u306e\u307f\u91cd \u8981\u8996\u3055\u308c\u308b\u3002.<\/p>\n Q2: \u30c1\u30bf\u30f3\u306e\u5b89\u5b9a\u5316\u306f\u71b1\u9178\u7528\u9014\u3067\u5408\u91d1825\u306b\u3069\u306e\u3088\u3046\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u304b\uff1f<\/b><\/p>\n \u5408\u91d1825\u306f\u3001\u92ed\u654f\u5316\u306b\u5bfe\u3057\u3066\u7d44\u7e54\u3092\u5b89\u5b9a\u5316\u3055\u305b\u308b\u305f\u3081\u306b\u30c1\u30bf\u30f3\u3092\u6dfb\u52a0\u3057\u3066\u3044\u307e\u3059\u3002\u30c1\u30bf\u30f3\u306f\u70ad\u7d20\u3068\u512a\u5148\u7684\u306b\u7d50\u5408\u3057\u3001\uff08\u6eb6\u63a5\u306e\u3088\u3046\u306a\uff09\u9ad8\u6e29\u306e\u71b1\u30b5\u30a4\u30af\u30eb\u4e2d\u306b\u7c92\u754c\u306b\u30af\u30ed\u30e0\u70ad\u5316\u7269\u304c\u5f62\u6210\u3055\u308c\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002\u3053\u306e\u5b89\u5b9a\u5316\u306b\u3088\u308a\u3001\u5408\u91d1\u304c\u305d\u306e\u5f8c\u653b\u6483\u7684\u306a\u9178\u6027\u5a92\u4f53\u306b\u3055\u3089\u3055\u308c\u305f\u969b\u306e\u7c92\u754c\u653b\u6483\u3092\u9632\u304e\u307e\u3059\u3002.<\/p>\n Q3: Ni-Mo \u5408\u91d1\uff08B-2 \u5408\u91d1\u306e\u3088\u3046\u306a\uff09\u306f\u3001\u4e00\u898b\u9084\u5143\u6027\u306e\u9178\u6027\u74b0\u5883\u3067\u306f\u3069\u3046\u306a\u308b\u306e\u3067\u3059\u304b\uff1f<\/b><\/p>\n \u5408\u91d1B-2\u306f\u7d14\u5869\u9178\u306b\u5bfe\u3057\u3066\u5353\u8d8a\u3057\u305f\u8010\u6027\u3092\u793a\u3059\u3002\u3057\u304b\u3057\u3001\u9178\u5316\u6027\u6c5a\u67d3\u7269\u8cea\u306b\u5bfe\u3057\u3066\u306f\u6975\u3081\u3066\u654f\u611f\u3067\u3059\u3002\u5fae\u91cf\u306e\u7b2c\u4e8c\u9244\u30a4\u30aa\u30f3(F<\/span>e<\/span>3+<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>)\u307e\u305f\u306f\u9285\u30a4\u30aa\u30f3(C<\/span>u<\/span>2+<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>)\u304c\u9178\u5316\u5264\u3068\u3057\u3066\u4f5c\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u8150\u98df\u901f\u5ea6\u304c\u58ca\u6ec5\u7684\u306b\u52a0\u901f\u3055\u308c\u308b\u3002 \u9178\u6027\u74b0\u5883\u7528\u30cb\u30c3\u30b1\u30eb\u5408\u91d1<\/b> \u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3057\u3001\u96fb\u6c17\u5316\u5b66\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u3092\u6eb6\u89e3\u6d3b\u6027\u7bc4\u56f2\u306b\u30b9\u30c8\u30ec\u30fc\u30c8\u306b\u30b7\u30d5\u30c8\u3055\u305b\u308b\u3002.<\/p>","protected":false},"excerpt":{"rendered":" Chemical processing environments demand uncompromising material selection. When handling aggressive media like hot sulfuric, hydrochloric, or phosphoric acids, standard austenitic stainless steels undergo rapid anodic dissolution. The presence of halide ions aggressively breaches passive oxide layers, leading to catastrophic localized pitting. This is why specifying the correct nickel alloy for acidic environment operations is not just about extending equipment lifespan; it is a baseline for structural safety. Material failure in low pH systems often stems from a fundamental misunderstanding of how specific microstructural alloying elements interact with the thermodynamics of the corrosive media. The metallurgical defense against acidic attack relies heavily on the synergistic alloying of Nickel (Ni), Molybdenum (Mo), […]<\/p>","protected":false},"author":1,"featured_media":2775,"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-2774","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"spectra_custom_meta":{"_edit_lock":["1772849528:1"],"_edit_last":["1"],"rank_math_seo_score":["71"],"rank_math_description":["Acid plant failures? Find the exact nickel alloy for acidic environment using raw metallurgical data. Discover the hidden pitting trigger."],"rank_math_focus_keyword":["nickel alloy for acidic environment"],"_thumbnail_id":["2775"],"_wp_page_template":["default"],"ilj_blacklistdefinition":["a:0:{}"],"ilj_linkdefinition":["a:1:{i:0;s:35:\"nickel alloy for acidic environment\";}"],"rank_math_internal_links_processed":["1"],"site-sidebar-layout":["default"],"ast-site-content-layout":["default"],"site-content-style":["default"],"site-sidebar-style":["default"],"theme-transparent-header-meta":["default"],"astra-migrate-meta-layouts":["set"],"_uag_page_assets":["a:9:{s:3:\"css\";s:263:\".uag-blocks-common-selector{z-index:var(--z-index-desktop) !important}@media (max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media (max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) !important}}\n\";s:2:\"js\";s:0:\"\";s:18:\"current_block_list\";a:8:{i:0;s:11:\"core\/search\";i:1;s:10:\"core\/group\";i:2;s:12:\"core\/heading\";i:3;s:17:\"core\/latest-posts\";i:4;s:20:\"core\/latest-comments\";i:5;s:13:\"core\/archives\";i:6;s:15:\"core\/categories\";i:7;s:10:\"core\/image\";}s:8:\"uag_flag\";b:0;s:11:\"uag_version\";s:10:\"1777019846\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"],"_uag_css_file_name":["uag-css-2774.css"],"_elementor_page_assets":["a:0:{}"]},"uagb_featured_image_src":{"full":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/167.jpg",1200,896,false],"thumbnail":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/167-150x150.jpg",150,150,true],"medium":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/167-300x224.jpg",300,224,true],"medium_large":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/167-768x573.jpg",768,573,true],"large":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/167-1024x765.jpg",1024,765,true],"1536x1536":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/167.jpg",1200,896,false],"2048x2048":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/167.jpg",1200,896,false],"trp-custom-language-flag":["https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/167-16x12.jpg",16,12,true]},"uagb_author_info":{"display_name":"nickel","author_link":"https:\/\/www.nickelcasting.com\/ja\/author\/nickel\/"},"uagb_comment_info":0,"uagb_excerpt":"Chemical processing environments demand uncompromising material selection. When handling aggressive media like hot sulfuric, hydrochloric, or phosphoric acids, standard austenitic stainless steels undergo rapid anodic dissolution. The presence of halide ions aggressively breaches passive oxide layers, leading to catastrophic localized pitting. This is why specifying the correct nickel alloy for acidic environment operations is not…","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2774","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=2774"}],"version-history":[{"count":1,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2774\/revisions"}],"predecessor-version":[{"id":2777,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/posts\/2774\/revisions\/2777"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/media\/2775"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/media?parent=2774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/categories?post=2774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/ja\/wp-json\/wp\/v2\/tags?post=2774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n\n
\n \u5408\u91d1\u30b0\u30ec\u30fc\u30c9<\/strong><\/td>\n UNS\u6307\u5b9a<\/strong><\/td>\n \u4e3b\u8981\u5408\u91d1\u5143\u7d20<\/strong><\/td>\n \u6cb8\u9a3010% H2SO4\u306e\u8150\u98df\u901f\u5ea6\uff08mpy\uff09<\/strong><\/td>\n \u4e00\u6b21\u9178\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30fb\u30d5\u30a9\u30fc\u30ab\u30b9<\/strong><\/td>\n<\/tr>\n<\/thead>\n\n \n \u30a2\u30ed\u30a4400<\/span><\/td>\n N04400<\/span><\/td>\n 63% Ni, 28-34% Cu<\/span><\/td>\n < 5.0 (\u8131\u6c17)<\/span><\/td>\n \u30d5\u30c3\u5316\u6c34\u7d20\u9178\u3001\u8131\u6c17\u786b\u9178<\/span><\/td>\n<\/tr>\n \n \u30a2\u30ed\u30a4825<\/span><\/td>\n N08825<\/span><\/td>\n 38-46% Ni, 19-23% Cr, 2.5-3.5% Mo<\/span><\/td>\n < 10.0<\/span><\/td>\n \u30ea\u30f3\u9178\u3001\u6df7\u5408\u9178\u30b9\u30c8\u30ea\u30fc\u30e0<\/span><\/td>\n<\/tr>\n \n \u5408\u91d1C-276<\/span><\/td>\n N10276<\/span><\/td>\n 57% Ni, 15-17% Mo, 14.5-16.5% Cr<\/span><\/td>\n < 2.0<\/span><\/td>\n \u6c5a\u67d3\u3055\u308c\u305f\u5869\u9178\u304a\u3088\u3073\u786b\u9178<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u6027\u80fd\u6307\u6a19\uff1a\u9178\u6027\u74b0\u5883\u306b\u6700\u9069\u306a\u30cb\u30c3\u30b1\u30eb\u5408\u91d1<\/h3>\n
![\"\u9178\u6027\u74b0\u5883\u306b\u6700\u9069\u306a\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u306f\uff1f\"](\"http:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/03\/168.jpg\")
<\/p>\n\u95a2\u9023Q&A<\/h3>\n