{"id":4224,"date":"2026-06-09T06:22:14","date_gmt":"2026-06-09T06:22:14","guid":{"rendered":"https:\/\/www.railgrindingwheel.com\/?p=4224"},"modified":"2026-06-09T06:30:37","modified_gmt":"2026-06-09T06:30:37","slug":"%e9%89%84%e9%81%93%e3%81%ae%e3%83%ac%e3%83%bc%e3%83%ab%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%aa%e7%b4%a0%e6%9d%90%e3%81%a7%e3%81%a7%e3%81%8d%e3%81%a6%e3%81%84%e3%82%8b%e3%81%ae%e3%81%a7","status":"publish","type":"post","link":"https:\/\/www.railgrindingwheel.com\/ja\/%e9%89%84%e9%81%93%e3%81%ae%e3%83%ac%e3%83%bc%e3%83%ab%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%aa%e7%b4%a0%e6%9d%90%e3%81%a7%e3%81%a7%e3%81%8d%e3%81%a6%e3%81%84%e3%82%8b%e3%81%ae%e3%81%a7\/","title":{"rendered":"\u30ec\u30fc\u30eb\u306e\u91d1\u5c5e\u90e8\u5206\u306f\u3069\u306e\u3088\u3046\u306a\u7d20\u6750\u3067\u3067\u304d\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f"},"content":{"rendered":"
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\n
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    \n
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    \n
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    \"\u9244\u9053\u7528\u91d1\u5c5e<\/figure>\n<\/div>\n

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    \u71b1\u51e6\u7406\u92fc<\/h3>\n

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    1<\/td>\nC<\/td>\n\u30ec\u30fc\u30eb\u306e\u5f37\u5ea6\u3001\u786c\u5ea6\u3001\u304a\u3088\u3073\u8010\u6469\u8017\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3002\u56fd\u5185\u88fd\u30ec\u30fc\u30eb\u306e\u70ad\u7d20\u542b\u6709\u91cf\u306f0.65%\uff5e0.82%\u3067\u3042\u308b\u3002\u70ad\u7d20\u542b\u6709\u91cf\u304c\u6bd4\u8f03\u7684\u9ad8\u3044\u5834\u5408\u3001\u92fc\u306f\u8106\u304f\u306a\u308a\u3001\u305d\u306e\u5851\u6027\u6307\u6570\u306f\u8457\u3057\u304f\u4f4e\u4e0b\u3059\u308b\u3002 \u540c\u6642\u306b\u3001\u92fc\u6750\u306b\u767d\u70b9\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u307e\u308b\u3002.<\/td>\n<\/tr>\n
    2<\/td>\n\u306f\u3044<\/td>\n\u9178\u5316\u3068\u7d50\u5408\u3057\u3084\u3059\u304f\u3001\u91d1\u5c5e\u4e2d\u306e\u6c17\u6ce1\u3092\u9664\u53bb\u3059\u308b\u5f79\u5272\u3092\u679c\u305f\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u92fc\u306b\u306f\u9069\u91cf\u306e\u30b7\u30ea\u30b3\u30f3\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u92fc\u306e\u786c\u5ea6\u3068\u8010\u6469\u8017\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002\u56fd\u5185\u306e\u30ec\u30fc\u30eb\u7528\u92fc\u306e\u542b\u6709\u91cf\u306f\u4e00\u822c\u7684\u306b0.159\uff5e0.9%\u3067\u3059\u304c\u3001\u542b\u6709\u91cf\u304c\u591a\u3059\u304e\u308b\u3068\u92fc\u304c\u786c\u304f\u8106\u304f\u306a\u308a\u3001\u6eb6\u63a5\u90e8\u306b\u6c17\u5b54\u304c\u751f\u3058\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002.<\/td>\n<\/tr>\n
    3<\/td>\nMn<\/td>\n\u3053\u308c\u306f\u3001\u92fc\u306e\u5f37\u5ea6\u3084\u8010\u6469\u8017\u6027\u3092\u5411\u4e0a\u3055\u305b\u3001\u976d\u6027\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u6709\u76ca\u306a\u5143\u7d20\u3067\u3059\u3002\u307e\u305f\u3001\u92fc\u4e2d\u306b\u542b\u307e\u308c\u308b\u6709\u5bb3\u306a\u9178\u5316\u9244\u3084\u786b\u5316\u7269\u306e\u4ecb\u5728\u7269\u3092\u9664\u53bb\u3059\u308b\u50cd\u304d\u3082\u3042\u308a\u307e\u3059\u3002 \u30de\u30f3\u30ac\u30f3\u542b\u6709\u91cf\u306f\u3001\u4e00\u822c\u7684\u306b0.61\uff5e1.54\uff05\u306e\u7bc4\u56f2\u306b\u5236\u5fa1\u3055\u308c\u307e\u3059\u3002\u30de\u30f3\u30ac\u30f3\u542b\u6709\u91cf\u304c1.21\uff05\u3092\u8d85\u3048\u308b\u92fc\u306f\u4e2d\u30de\u30f3\u30ac\u30f3\u92fc\u3068\u547c\u3070\u308c\u3001\u305d\u306e\u8010\u6469\u8017\u6027\u306f\u975e\u5e38\u306b\u9ad8\u3044\u3067\u3059\u3002.<\/td>\n<\/tr>\n
    4<\/td>\nCu<\/td>\n\u3053\u308c\u306f\u6709\u76ca\u306a\u5143\u7d20\u3067\u3059\u3002\u92fc\u306b\u306f\u5c11\u91cf\u306e\u9285\u5316\u5408\u7269\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u92fc\u306e\u8010\u75b2\u52b4\u6027\u3084\u8010\u98df\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002 \u56fd\u5185\u306e\u92fc\u88fd\u30ec\u30fc\u30eb\u306e\u9285\u542b\u6709\u91cf\u306f\u3001\u4e00\u822c\u7684\u306b0.10%\u304b\u30890.40%\u306e\u9593\u3067\u3059\u3002\u9285\u542b\u6709\u30ec\u30fc\u30eb\u306e\u5727\u5ef6\u5de5\u7a0b\u304c\u9069\u5207\u3067\u306a\u3044\u5834\u5408\u3001\u30ec\u30fc\u30eb\u306e\u8868\u9762\u306b\u9b5a\u9c57\u72b6\u306e\u4e80\u88c2\u304c\u751f\u3058\u307e\u3059\u3002<\/td>\n<\/tr>\n
    5<\/td>\nP<\/td>\n\u3053\u308c\u306f\u6709\u5bb3\u306a\u5143\u7d20\u3067\u3059\u3002\u30ea\u30f3\u5316\u7269\u306e\u6700\u5927\u306e\u5371\u967a\u6027\u306f\u3001\u92fc\u306e\u5851\u6027\u3084\u976d\u6027\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3053\u3068\u3067\u3059\u3002\u7279\u306b\u4f4e\u6e29\u3067\u306f\u3001\u92fc\u306e\u4f4e\u6e29\u8106\u6027\u304c\u5897\u5927\u3057\u3001\u30ec\u30fc\u30eb\u306e\u7834\u640d\u3092\u62db\u304d\u3084\u3059\u3044\u305f\u3081\u3001\u305d\u306e\u542b\u6709\u91cf\u306f0.041\uff05\u4ee5\u4e0b\u306b\u5236\u9650\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/td>\n<\/tr>\n
    6<\/td>\nS<\/td>\n\u786b\u9ec4\u306f\u6709\u5bb3\u306a\u5143\u7d20\u3067\u3059\u3002\u786b\u9ec4\u306f\u3057\u3070\u3057\u3070\u7c92\u72b6\u306e\u5f62\u3067\u92fc\u4e2d\u306b\u6b8b\u7559\u3057\u307e\u3059\u3002\u30ec\u30fc\u30eb\u3092\u5727\u5ef6\u3059\u308b\u969b\u3001\u786b\u9ec4\u306f\u92fc\u3068\u3068\u3082\u306b\u30b7\u30fc\u30c8\u72b6\u306b\u5727\u5ef6\u3055\u308c\u308b\u305f\u3081\u3001\u30ec\u30fc\u30eb\u306e\u5265\u96e2\u3084\u7e26\u65b9\u5411\u306e\u4e80\u88c2\u306e\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002\u786b\u9ec4\u542b\u6709\u91cf\u306f0.051\uff05\u4ee5\u4e0b\u306b\u7ba1\u7406\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \u9244\u4ee5\u5916\u306e\u30ec\u30fc\u30eb\u306b\u542b\u307e\u308c\u308b\u4e3b\u306a\u5316\u5b66\u5143\u7d20\u3068\u305d\u306e\u6a5f\u80fd<\/figcaption>\n<\/figure>\n

    \u9244\u9053\u7dda\u8def\u7528\u91d1\u5c5e\u306e\u6a5f\u68b0\u7684\u7279\u6027<\/h2>\n
      \n
    • \u5f37\u3055<\/li>\n<\/ul>\n

      \u8377\u91cd\u4e0b\u3067\u30ec\u30fc\u30eb\u304c\u5909\u5f62\u3084\u640d\u50b7\u306b\u8010\u3048\u308b\u80fd\u529b\u3002\u3053\u308c\u306f\u3001\u901a\u5e38\u3001\u5f37\u5ea6\u9650\u754c\u3001\u964d\u4f0f\u70b9\u3001\u305d\u306e\u4ed6\u306e\u6307\u6a19\u3092\u7528\u3044\u3066\u8868\u3055\u308c\u308b\u3002\u5f37\u5ea6\u9650\u754c\uff08\u5f15\u5f35\u5f37\u5ea6\uff09\u3068\u306f\u3001\u91d1\u5c5e\u6750\u6599\u304c\u5f15\u5f35\u8377\u91cd\u306b\u8010\u3048\u3001\u7834\u58ca\u306b\u81f3\u3089\u306a\u3044\u6700\u5927\u5fdc\u529b\u3092\u6307\u3059\u3002 \u964d\u4f0f\u70b9\uff08\u964d\u4f0f\u5f37\u5ea6\uff09\u3068\u306f\u3001\u91d1\u5c5e\u6750\u6599\u304c\u8377\u91cd\u3092\u5897\u5927\u3055\u305b\u308b\u3053\u3068\u306a\u304f\u3001\u306a\u304a\u304b\u3064\u8457\u3057\u3044\u5851\u6027\u5909\u5f62\u3092\u751f\u3058\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u5fdc\u529b\u306e\u3053\u3068\u3092\u6307\u3059\u3002\u5358\u4f4d\u306fMPa\u3067\u3042\u308b\u3002.<\/p>\n

        \n
      • \u53ef\u5851\u6027<\/li>\n<\/ul>\n

        \u91d1\u5c5e\u6750\u6599\u306f\u3001\u8377\u91cd\u304c\u304b\u304b\u3063\u3066\u3082\u640d\u50b7\u3059\u308b\u3053\u3068\u306a\u304f\u8457\u3057\u3044\u5909\u5f62\u3092\u53d7\u3051\u3001\u8377\u91cd\u304c\u53d6\u308a\u9664\u304b\u308c\u305f\u5f8c\u3082\u5909\u5f62\u3057\u305f\u5f62\u72b6\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u4f38\u3073\u3084\u53ce\u7e2e\u3068\u3044\u3046\u6307\u6a19\u3067\u8868\u3055\u308c\u307e\u3059\u3002\u4f38\u3073\u3068\u306f\u3001\u8a66\u9a13\u7247\u304c\u7834\u65ad\u3057\u305f\u5f8c\u306e\u6821\u6b63\u9577\u3055\u3092\u3001\u5143\u306e\u6821\u6b63\u9577\u3055\u306b\u5bfe\u3059\u308b\u5272\u5408\u3068\u3057\u3066\u8868\u3057\u305f\u3082\u306e\u3067\u3059\u3002 \u65ad\u9762\u53ce\u7e2e\u7387\u306f\u3001\u8a66\u6599\u306e\u7834\u65ad\u65ad\u9762\u7a4d\u306e\u6e1b\u5c11\u5206\u3068\u5143\u306e\u65ad\u9762\u7a4d\u3068\u306e\u6bd4\u3092\u767e\u5206\u7387\u3067\u8868\u3057\u305f\u3082\u306e\u3067\u3042\u308b\u3002.<\/p>\n

          \n
        • \u786c\u5ea6<\/li>\n<\/ul>\n

          \u91d1\u5c5e\u6750\u6599\u304c\u3001\u3088\u308a\u786c\u3044\u7269\u4f53\uff08\u6750\u6599\uff09\u304c\u305d\u306e\u8868\u9762\u306b\u62bc\u3057\u8fbc\u307e\u308c\u308b\u3053\u3068\u306b\u5bfe\u3057\u3066\u62b5\u6297\u3059\u308b\u80fd\u529b\u3002\u6e2c\u5b9a\u65b9\u6cd5\u306e\u9055\u3044\u306b\u3088\u308a\u3001\u30d6\u30ea\u30cd\u30eb\u786c\u5ea6\uff08HB\uff09\u3068\u30ed\u30c3\u30af\u30a6\u30a7\u30eb\u786c\u5ea6\uff08HRC\uff09\u306b\u5206\u985e\u3055\u308c\u308b\u3002.<\/p>\n

          \u5b9f\u52d9\u4e0a\u306e\u7d4c\u9a13\u304b\u3089\u3001\u786c\u3055\u3068\u5f37\u5ea6\u306e\u9593\u306b\u306f\u4e00\u5b9a\u306e\u76f8\u95a2\u95a2\u4fc2\u304c\u3042\u308b\u3053\u3068\u304c\u5b9f\u8a3c\u3055\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u306f\u30d6\u30ea\u30cd\u30eb\u786c\u3055\u5024\u306b\u57fa\u3065\u3044\u3066\u6982\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002.<\/p>\n

          \u305d\u306e\u6750\u6599\u306e\u5f15\u5f35\u5f37\u5ea6\u3092\u7b97\u51fa\u3059\u308b\u3002\u4f8b\u3048\u3070\u3001\u4f4e\u70ad\u7d20\u92fc\u306f6b\u22480.36HB\u3001\u9ad8\u70ad\u7d20\u92fc\u306f6b\u22480.34HB\u3067\u3042\u308b\u3002.<\/p>\n

            \n
          • \u30ec\u30b8\u30ea\u30a8\u30f3\u30b9<\/li>\n<\/ul>\n

            \u91d1\u5c5e\u6750\u6599\u304c\u640d\u50b7\u3059\u308b\u3053\u3068\u306a\u304f\u885d\u6483\u8377\u91cd\u306b\u8010\u3048\u308b\u80fd\u529b\u3002\u91d1\u5c5e\u6750\u6599\u306e\u976d\u6027\u306f\u885d\u6483\u8a66\u9a13\u306b\u3088\u3063\u3066\u6e2c\u5b9a\u3055\u308c\u3001\u885d\u6483\u976d\u6027\u5024\u03b1k\uff08kJ\/m\uff09\u3067\u8868\u3055\u308c\u308b\u30022<\/sup>.<\/p>\n

              \n
            • \u75b2\u52b4\u5f37\u5ea6<\/li>\n<\/ul>\n

              \u7e70\u8fd4\u3057\u8377\u91cd\u304c\u52a0\u308f\u308b\u3068\u3001\u6750\u6599\u306f\u7834\u58ca\u3059\u308b\u3002\u91d1\u5c5e\u6750\u6599\u304c\u75b2\u52b4\u306b\u8010\u3048\u308b\u80fd\u529b\u306f\u3001\u75b2\u52b4\u5f37\u5ea6\u306b\u3088\u3063\u3066\u6e2c\u5b9a\u3055\u308c\u308b\u3002\u75b2\u52b4\u5f37\u5ea6\u3068\u306f\u3001\u7e70\u8fd4\u3057\u8377\u91cd\u304c\u52a0\u308f\u3063\u3066\u3082\u7834\u58ca\u306b\u81f3\u3089\u306a\u3044\u91d1\u5c5e\u6750\u6599\u306e\u6700\u5927\u5fdc\u529b\u306e\u3053\u3068\u3092\u3044\u3046\u3002.<\/p>\n

              \u71b1\u9593\u5727\u5ef6\u3055\u308c\u305f\u9244\u9053\u30ec\u30fc\u30eb\u7528\u92fc\u6750\u306e\u786c\u5ea6<\/h3>\n
              \n\n\n\n\n\n\n\n\n
              \u7d20\u6750<\/strong><\/th>\n\u5f15\u5f35\u5f37\u5ea6 \/ MPa<\/strong><\/th>\n\u786c\u5ea6 \/ HB<\/strong><\/th>\n<\/tr>\n<\/thead>\n
              U75V<\/td>\n980\u4ee5\u4e0a<\/td>\n280~320<\/td>\n<\/tr>\n
              U78CrV<\/td>\n1080\u4ee5\u4e0a<\/td>\n310~360<\/td>\n<\/tr>\n
              U76CrRE<\/td>\n1080\u4ee5\u4e0a<\/td>\n310~360<\/td>\n<\/tr>\n
              U77MnCr<\/td>\n980\u4ee5\u4e0a<\/td>\n290~330<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

              \u71b1\u51e6\u7406\u3092\u65bd\u3057\u305f\u9244\u9053\u30ec\u30fc\u30eb\u306e\u786c\u5ea6<\/h3>\n
              \n\n\n\n\n\n\n
              \u7d20\u6750<\/strong><\/th>\n\u5f15\u5f35\u5f37\u5ea6 \/ MPa<\/strong><\/th>\n\u786c\u5ea6 \/ HB<\/strong><\/th>\n<\/tr>\n<\/thead>\n
              U75V<\/td>\n1180\u4ee5\u4e0a<\/td>\n320~380<\/td>\n<\/tr>\n
              U78CrV<\/td>\n1280\u4ee5\u4e0a<\/td>\n370~420<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
              \n\t\t\t\t
              \n\t\t\t\t\t\t\t
              \n\t\t\t
              \n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
              \n\t\t\t\t\t
              <\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t
              \n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

              \u30ec\u30fc\u30eb\u7528\u92fc\u6750\u306f\u3001\u4e00\u822c\u306b\u300c\u9244\u9053\u7528\u92fc\u6750\u300d\u3068\u3057\u3066\u77e5\u3089\u308c\u3001\u4e3b\u306b\u9244\u9053\u306e\u7dda\u8def\u306b\u4f7f\u7528\u3055\u308c\u308b\u91d1\u5c5e\u88fd\u54c1\u306e\u4e00\u7a2e\u3067\u3042\u308b\u3002\u30ec\u30fc\u30eb\u306f\u5217\u8eca\u306e\u91cd\u91cf\u3084\u52d5\u7684\u8377\u91cd\u3092\u652f\u3048\u308b\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u308b\u3002\u305d\u306e\u8868\u9762\u306f\u6469\u8017\u3057\u3001\u982d\u90e8\u306b\u306f\u885d\u6483\u304c\u52a0\u308f\u308b\u3002\u307e\u305f\u3001\u30ec\u30fc\u30eb\u306b\u306f\u5927\u304d\u306a\u66f2\u3052\u5fdc\u529b\u3082\u4f5c\u7528\u3059\u308b\u3002\u8907\u96d1\u306a\u5727\u7e2e\u529b\u3068\u9577\u671f\u9593\u306e\u4f7f\u7528\u306b\u3088\u308a\u3001\u30ec\u30fc\u30eb\u306b\u306f\u640d\u50b7\u304c\u751f\u3058\u308b\u3002.<\/p>","protected":false},"author":4,"featured_media":4226,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"right-sidebar","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"boxed","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"disabled","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"disabled","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"","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":"","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[88],"tags":[],"class_list":["post-4224","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nWhat is rail track metal made of?<\/title>\n<meta name=\"description\" content=\"The rail track metal, commonly known as train track steel, is special steel in metallurgical products mainly used for railroad tracks.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.railgrindingwheel.com\/ja\/\u9244\u9053\u306e\u30ec\u30fc\u30eb\u306f\u3069\u306e\u3088\u3046\u306a\u7d20\u6750\u3067\u3067\u304d\u3066\u3044\u308b\u306e\u3067\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is rail track metal made of?\" \/>\n<meta property=\"og:description\" content=\"The rail track metal, commonly known as train track steel, is special steel in metallurgical products mainly used for railroad tracks.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.railgrindingwheel.com\/ja\/\u9244\u9053\u306e\u30ec\u30fc\u30eb\u306f\u3069\u306e\u3088\u3046\u306a\u7d20\u6750\u3067\u3067\u304d\u3066\u3044\u308b\u306e\u3067\/\" \/>\n<meta property=\"og:site_name\" content=\"Rail Grinding Wheel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/people\/Jumbo-Abrasives-Company\/100088416174057\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-09T06:22:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-09T06:30:37+00:00\" \/>\n<meta property=\"og:image\" 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