{"id":5879,"date":"2025-12-26T00:57:53","date_gmt":"2025-12-26T00:57:53","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5879"},"modified":"2025-12-26T00:57:53","modified_gmt":"2025-12-26T00:57:53","slug":"hydrogen-embrittlement-in-fasteners-guide","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/ja\/blog\/hydrogen-embrittlement-in-fasteners-guide\/","title":{"rendered":"\u7de0\u7d50\u90e8\u54c1\u306e\u6c34\u7d20\u8106\u5316\u306b\u95a2\u3059\u308b\u30ac\u30a4\u30c9"},"content":{"rendered":"
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\u6c34\u7d20\u8106\u5316\u306e\u6982\u8981<\/h2>\n

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    \n

    \u5931\u6557\u3057\u3084\u3059\u3044\u72b6\u6cc1\u3068\u7279\u6027<\/h2>\n

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      \n

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      \u52b9\u679c\u7684\u306a\u8150\u98df\u4f4e\u6e1b\u6226\u7565\u306f\u3001\u5de5\u7a0b\u7ba1\u7406\u306b\u91cd\u70b9\u3092\u7f6e\u3044\u3066\u3044\u307e\u3059\u3002\u786c\u5ea6\u304c320 HV\u4ee5\u4e0a\u306e\u7de0\u7d50\u90e8\u54c1\u306b\u3064\u3044\u3066\u306f\u3001\u6d17\u6d44\u524d\u306b\u5fdc\u529b\u9664\u53bb\u51e6\u7406\u3092\u884c\u3044\u3001\u8010\u8150\u98df\u6027\u306e\u9178\u3001\u30a2\u30eb\u30ab\u30ea\u3001\u307e\u305f\u306f\u6700\u5c0f\u9650\u306e\u6d78\u6f2c\u6642\u9593\u3067\u306e\u6a5f\u68b0\u7684\u65b9\u6cd5\u3092\u7528\u3044\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

      \u51b7\u9593\u52a0\u5de5\u307e\u305f\u306f\u71b1\u51e6\u7406\u5f8c\u306e\u5de5\u7a0b\u306b\u3064\u3044\u3066\u306f\u3001ISO 9587\u306e\u624b\u9806\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u71b1\u51e6\u7406\u5f8c\u306b\u306d\u3058\u3092\u8ee2\u9020\u3059\u308b\u306a\u3069\u3001\u6b8b\u7559\u5fdc\u529b\u3092\u767a\u751f\u3055\u305b\u308b\u3088\u3046\u306a\u3053\u3068\u306f\u907f\u3051\u3066\u304f\u3060\u3055\u3044\u3002\u786c\u5ea6\u304c385 HV\u3092\u8d85\u3048\u308b\u5834\u5408\u3001\u307e\u305f\u306f\u7279\u6027\u30af\u30e9\u30b9\u304c12.9\u4ee5\u4e0a\u306e\u5834\u5408\u306f\u3001\u9178\u6d17\u3092\u907f\u3051\u3001\u30a2\u30eb\u30ab\u30ea\u6d17\u6d44\u307e\u305f\u306f\u30b5\u30f3\u30c9\u30d6\u30e9\u30b9\u30c8\u51e6\u7406\u3092\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

      \u786c\u5ea6365HV\u3092\u8d85\u3048\u308b\u5834\u5408\u306f\u3001\u9ad8\u9670\u6975\u52b9\u7387\u3081\u3063\u304d\u6db2\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u92fc\u88fd\u7de0\u7d50\u90e8\u54c1\u306b\u306f\u3001\u3081\u3063\u304d\u524d\u306e\u6d17\u6d44\u6642\u9593\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u305f\u3081\u3001\u7279\u6b8a\u306a\u8868\u9762\u51e6\u7406\u3092\u65bd\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3081\u3063\u304d\u5c64\u304c\u539a\u3059\u304e\u308b\u3068\u6c34\u7d20\u306e\u653e\u51fa\u304c\u963b\u5bb3\u3055\u308c\u308b\u305f\u3081\u3001\u6700\u9069\u306a\u3081\u3063\u304d\u539a\u3055\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

      \u4ee5\u4e0b\u306e\u88fd\u54c1\u306b\u3064\u3044\u3066\u306f\u3001\u3081\u3063\u304d\u5f8c\u306e\u8131\u6c34\u7d20\u51e6\u7406\u304c\u7fa9\u52d9\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u5f37\u5ea6\u7b49\u7d1a10.9\u4ee5\u4e0a\u306e\u30dc\u30eb\u30c8\/\u306d\u3058\/\u30b9\u30bf\u30c3\u30c9\u3001\u786c\u5ea6372 HV\u4ee5\u4e0a\u306e\u3070\u306d\u5ea7\u91d1\u3001\u5f37\u5ea6\u7b49\u7d1a12\u4ee5\u4e0a\u306e\u30ca\u30c3\u30c8\u3001\u8868\u9762\u786c\u5316\u30bb\u30eb\u30d5\u30bf\u30c3\u30d4\u30f3\u30b0\u306d\u3058\u3001\u5f15\u5f35\u5f37\u5ea61000 MPa\u4ee5\u4e0a\u307e\u305f\u306f\u786c\u5ea6365 HV\u4ee5\u4e0a\u306e\u91d1\u5c5e\u30af\u30ea\u30c3\u30d7\u3002<\/p>\n

        \n
      1. \u898f\u683c\u306b\u5f93\u3063\u3066\u5fdc\u529b\u9664\u53bb\u713c\u304d\u306a\u307e\u3057\u51e6\u7406\u3092\u5b9f\u65bd\u3059\u308b\u3002<\/li>\n
      2. \u9178\u6027\u306e\u5c11\u306a\u3044\u6d17\u6d44\u65b9\u6cd5\u3092\u9078\u3073\u307e\u3057\u3087\u3046\u3002<\/li>\n
      3. \u6c34\u7d20\u306e\u5438\u53ce\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3088\u3046\u306b\u3081\u3063\u304d\u6761\u4ef6\u3092\u5236\u5fa1\u3059\u308b\u3002<\/li>\n<\/ol>\n

        \u3053\u308c\u3089\u306e\u5bfe\u7b56\u306f\u3001ASTM F1941\u304a\u3088\u3073ISO 4042\u306b\u6e96\u62e0\u3057\u3066\u304a\u308a\u3001\u30ea\u30b9\u30af\u3092\u5927\u5e45\u306b\u4f4e\u6e1b\u3057\u3001\u9577\u671f\u7684\u306a\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002<\/p>\n<\/section>\n

        \n

        \u6c34\u7d20\u8106\u5316\u3092\u9664\u53bb\u3059\u308b\u305f\u3081\u306e\u5bfe\u7b56<\/h2>\n

        \u8131\u6c34\u7d20\u51e6\u7406\u3068\u306f\u3001\u52a0\u71b1\u306b\u3088\u3063\u3066\u5185\u90e8\u306b\u9589\u3058\u8fbc\u3081\u3089\u308c\u305f\u6c34\u7d20\u3092\u62e1\u6563\u30fb\u653e\u51fa\u3055\u305b\u308b\u51e6\u7406\u3067\u3059\u3002\u3053\u306e\u71b1\u51e6\u7406\u306f\u3001ISO 4042 \u4ed8\u9332 A \u306b\u8a73\u8ff0\u3055\u308c\u3066\u304a\u308a\u3001\u90e8\u54c1\u306e\u7a2e\u985e\u3001\u5f62\u72b6\u3001\u6750\u8cea\u3001\u786c\u5ea6\u3001\u6d17\u6d44\u3001\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u3081\u3063\u304d\u51e6\u7406\u306a\u3069\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n

        \u91cd\u8981\u306a\u8003\u616e\u4e8b\u9805\uff1a\u713c\u304d\u623b\u3057\u6e29\u5ea6\u3092\u8d85\u3048\u306a\u3044\u3053\u3068\u3002\u30e1\u30c3\u30ad\u5f8c\u3059\u3050\u306b\uff08\u7406\u60f3\u7684\u306b\u306f1\u6642\u9593\u4ee5\u5185\u306b\uff09\u30af\u30ed\u30e1\u30fc\u30c8\u30d1\u30c3\u30b7\u30d9\u30fc\u30b7\u30e7\u30f3\u306e\u524d\u306b\u30d9\u30fc\u30ad\u30f3\u30b0\u3092\u884c\u3046\u3053\u3068\u3002200\uff5e230\u2103\u30672\uff5e24\u6642\u9593\u52a0\u71b1\u3059\u308b\u3053\u3068\u3002\u4f4e\u6e29\u3067\u9577\u6642\u9593\u52a0\u71b1\u3059\u308b\u3053\u3068\u304c\u671b\u307e\u3057\u3044\uff08\u901a\u5e388\u6642\u9593\uff09\u3002<\/p>\n

          \n
        • \u30aa\u30fc\u30d6\u30f3\u5185\u306e\u6e29\u5ea6\u5747\u4e00\u6027\u3092\u00b15\u2103\u306e\u7cbe\u5ea6\u3067\u76e3\u8996\u3059\u308b\u3002<\/li>\n
        • \u90e8\u54c1\u306b\u904e\u8ca0\u8377\u304c\u304b\u304b\u3089\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3001\u5747\u4e00\u306b\u52a0\u71b1\u3055\u308c\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n
        • ISO 15330\u306b\u6e96\u62e0\u3057\u305f\u6301\u7d9a\u8ca0\u8377\u8a66\u9a13\u306b\u3088\u308a\u3001\u6709\u52b9\u6027\u3092\u691c\u8a3c\u3059\u308b\u3002<\/li>\n<\/ul>\n

          \u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u306f\u6c34\u7d20\u304c\u84b8\u767a\u3057\u3001\u4e0d\u53ef\u9006\u7684\u306b\u653e\u51fa\u3055\u308c\u308b\u305f\u3081\u3001\u8106\u5316\u304c\u5b89\u5168\u306b\u4f7f\u7528\u3067\u304d\u308b\u8a31\u5bb9\u30ec\u30d9\u30eb\u307e\u3067\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u308b\u3002<\/p>\n<\/section>\n

          \n

          \u6a19\u6e96\u30d9\u30fc\u30ad\u30f3\u30b0\u30d1\u30e9\u30e1\u30fc\u30bf\u8868<\/h2>\n
          \n\n\n\n\n\n\n\n\n\n
          \u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u7a2e\u985e<\/th>\n\u786c\u5ea6\uff0f\u5f37\u5ea6<\/th>\n\u713c\u304d\u6e29\u5ea6\uff08\u2103\uff09<\/th>\n\u713c\u304d\u6642\u9593\uff08\u6642\u9593\uff09<\/th>\n\u6a19\u6e96\u53c2\u7167<\/th>\n<\/tr>\n<\/thead>\n
          \u30dc\u30eb\u30c8\u3001\u30cd\u30b8\u3001\u30b9\u30bf\u30c3\u30c9<\/td>\n\u226510.9\u30af\u30e9\u30b9<\/td>\n200-230<\/td>\n8-24<\/td>\nISO 4042<\/td>\n<\/tr>\n
          \u30b9\u30d7\u30ea\u30f3\u30b0\u30ef\u30c3\u30b7\u30e3\u30fc<\/td>\n\u2265372 HV<\/td>\n190-220<\/td>\n4-10<\/td>\nASTM B850<\/td>\n<\/tr>\n
          \u30ca\u30c3\u30c4<\/td>\n12\u6b73\u4ee5\u4e0a\u30af\u30e9\u30b9<\/td>\n200-230<\/td>\n8-16<\/td>\nISO 898-2<\/td>\n<\/tr>\n
          \u30bb\u30eb\u30d5\u30bf\u30c3\u30d4\u30f3\u30b0\u306d\u3058<\/td>\n\u8868\u9762\u786c\u5316<\/td>\n180-210<\/td>\n2-8<\/td>\nISO 2702<\/td>\n<\/tr>\n
          \u91d1\u5c5e\u30af\u30ea\u30c3\u30d7<\/td>\n1000 MPa\u4ee5\u4e0a\u307e\u305f\u306f365 HV\u4ee5\u4e0a<\/td>\n200-230<\/td>\n4-12<\/td>\nASTM F1940<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

          \u3053\u306e\u8868\u306f\u3001\u4fe1\u983c\u3067\u304d\u308b\u57fa\u6e96\u306b\u57fa\u3065\u3044\u305f\u713c\u6210\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u307e\u3068\u3081\u305f\u3082\u306e\u3067\u3059\u3002\u6a5f\u68b0\u7684\u7279\u6027\u3092\u640d\u306a\u3046\u3053\u3068\u306a\u304f\u6700\u9069\u306a\u8131\u6c34\u7d20\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u3001\u6750\u6599\u304a\u3088\u3073\u30d7\u30ed\u30bb\u30b9\u691c\u8a3c\u306b\u57fa\u3065\u3044\u3066\u8abf\u6574\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/section>\n

          \n

          \u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n

          \u7de0\u7d50\u90e8\u54c1\u306b\u304a\u3051\u308b\u6c34\u7d20\u8106\u5316\u306e\u4e3b\u306a\u539f\u56e0\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n

          \u4e3b\u306a\u539f\u56e0\u306f\u3001\u96fb\u6c17\u3081\u3063\u304d\u3084\u9178\u6d17\u306e\u969b\u306b\u767a\u751f\u3059\u308b\u6c34\u7d20\u5438\u53ce\u3067\u3042\u308a\u3001\u6750\u6599\u306e\u786c\u5ea6\u304c\u9ad8\u3044\u3053\u3068\u3084\u5f15\u5f35\u5fdc\u529b\u306b\u3088\u3063\u3066\u3055\u3089\u306b\u60aa\u5316\u3059\u308b\u3002ISO 4042\u306a\u3069\u306e\u898f\u683c\u3067\u306f\u3001\u3053\u308c\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u306b\u5373\u6642\u30d9\u30fc\u30ad\u30f3\u30b0\u3092\u63a8\u5968\u3057\u3066\u3044\u308b\u3002<\/p>\n

           <\/p>\n

          \u9ad8\u5f37\u5ea6\u30d5\u30a1\u30b9\u30ca\u30fc\u306f\u306a\u305c\u7834\u640d\u3057\u3084\u3059\u3044\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/h3>\n

          \u786c\u5ea6\u304c\u9ad8\u3044\u307b\u3069\uff08\u4f8b\u3048\u3070320 HV\u4ee5\u4e0a\uff09\u3001\u683c\u5b50\u4e2d\u306e\u6c34\u7d20\u6eb6\u89e3\u5ea6\u3068\u30c8\u30e9\u30c3\u30d7\u30b5\u30a4\u30c8\u304c\u5897\u52a0\u3057\u3001\u8106\u5316\u611f\u53d7\u6027\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002\u786c\u5ea612.9\u4ee5\u4e0a\u306e\u5834\u5408\u306f\u3001\u975e\u9178\u6027\u6d17\u6d44\u5264\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

           <\/p>\n

          \u713c\u304d\u6e29\u5ea6\u3068\u713c\u304d\u6642\u9593\u306f\u3069\u306e\u304f\u3089\u3044\u306b\u3059\u308c\u3070\u826f\u3044\u3067\u3059\u304b\uff1f<\/h3>\n

          \u901a\u5e38\u3001200\uff5e230\u2103\u30678\uff5e24\u6642\u9593\u4fdd\u6301\u3059\u308b\u304c\u3001\u713c\u304d\u623b\u3057\u6e29\u5ea6\u3092\u8d85\u3048\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3002\u52b9\u679c\u7684\u306a\u6c34\u7d20\u653e\u51fa\u306e\u305f\u3081\u3001ASTM B850\u306b\u5f93\u3044\u3001\u3081\u3063\u304d\u5f8c1\u6642\u9593\u4ee5\u5185\u306b\u5b9f\u65bd\u3059\u308b\u3002<\/p>\n

           <\/p>\n

          \u6c34\u7d20\u8106\u5316\u3092\u5b8c\u5168\u306b\u6392\u9664\u3059\u308b\u3053\u3068\u306f\u53ef\u80fd\u304b\uff1f<\/h3>\n

          \u30ea\u30b9\u30af\u306f\u5b8c\u5168\u306b\u6392\u9664\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u304c\u3001ISO 15330\u306b\u6e96\u62e0\u3057\u305f\u5de5\u7a0b\u7ba1\u7406\u3001\u6750\u6599\u9078\u5b9a\u3001\u8a66\u9a13\u306b\u3088\u3063\u3066\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5b9a\u671f\u7684\u306a\u76e3\u67fb\u306f\u3001\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306e\u78ba\u4fdd\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n

           <\/p>\n

          \u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u539a\u3055\u306f\u6c34\u7d20\u8106\u5316\u306b\u3069\u306e\u3088\u3046\u306b\u5f71\u97ff\u3057\u307e\u3059\u304b\uff1f<\/h3>\n

          \u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u539a\u304f\u306a\u308b\u3068\u3001\u713c\u6210\u4e2d\u306e\u6c34\u7d20\u62e1\u6563\u304c\u963b\u5bb3\u3055\u308c\u3001\u30ea\u30b9\u30af\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002ISO 4042\u306b\u5f93\u3063\u3066\u6700\u9069\u306a\u539a\u3055\u3092\u6c7a\u5b9a\u3057\u3001\u8150\u98df\u9632\u6b62\u3068\u8106\u5316\u9632\u6b62\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

           <\/p>\n

          \u8131\u6c34\u7d20\u52b9\u679c\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u8a66\u9a13\u65b9\u6cd5\u306f\u3069\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u304b\uff1f<\/h3>\n

          \u6301\u7d9a\u8377\u91cd\u8a66\u9a13\uff08ISO 15330\uff09\u307e\u305f\u306f\u6bb5\u968e\u7684\u8377\u91cd\u8a66\u9a13\uff08ASTM F1624\uff09\u306b\u3088\u3063\u3066\u8010\u6027\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u751f\u7523\u306b\u304a\u3051\u308b\u54c1\u8cea\u4fdd\u8a3c\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<\/section>\n<\/article>\n

           <\/p>","protected":false},"excerpt":{"rendered":"

          Introduction to Hydrogen Embrittlement Hydrogen embrittlement is a critical phenomenon in mechanical engineering, particularly affecting high-strength threaded fasteners made from steel or other metals. It occurs when hydrogen atoms diffuse into the metal lattice, leading to reduced ductility and sudden brittle failure under stress levels below the material’s yield strength. This guide, informed by over two decades of expertise in mechanical materials and adherence to international standards like ISO 4042 for electroplated fasteners and SAE USCAR-7 for hydrogen embrittlement testing, aims to provide detailed insights into prevention and mitigation. Understanding this issue is essential for industries such as automotive, aerospace, and construction, where fastener reliability directly impacts safety and performance. […]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[220],"tags":[],"class_list":["post-5879","post","type-post","status-publish","format-standard","hentry","category-technical-documentation-and-references"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/posts\/5879","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/comments?post=5879"}],"version-history":[{"count":2,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/posts\/5879\/revisions"}],"predecessor-version":[{"id":5881,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/posts\/5879\/revisions\/5881"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/media?parent=5879"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/categories?post=5879"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/tags?post=5879"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}