{"id":11673,"date":"2025-12-23T12:52:18","date_gmt":"2025-12-23T04:52:18","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11673"},"modified":"2026-06-25T15:35:03","modified_gmt":"2026-06-25T07:35:03","slug":"s7-tool-steel-heat-treatment","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/s7-tool-steel-heat-treatment\/","title":{"rendered":"S7 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc: \uc628\ub3c4, \uacbd\ub3c4 \ubc0f \uacf5\uc815"},"content":{"rendered":"<section class=\"aobo-s7-heat-treatment-page\">\n  <style>\n    .aobo-s7-heat-treatment-page {\n      --aobo-blue: #0c56d0;\n      --aobo-blue-dark: #073b8e;\n      --aobo-blue-soft: #eaf2ff;\n      --aobo-border: #d7e5fb;\n      --aobo-text: #203044;\n      --aobo-muted: #617087;\n      --aobo-orange: #f59b23;\n      --aobo-shadow: 0 18px 45px rgba(12, 86, 208, 0.10);\n      font-family: inherit;\n      color: var(--aobo-text);\n      line-height: 1.7;\n      background: transparent;\n      padding: 0;\n      box-sizing: border-box;\n    }\n\n    .aobo-s7-heat-treatment-page * {\n      box-sizing: border-box;\n    }\n\n    .aobo-wrap {\n      max-width: 1180px;\n      margin: 0 auto;\n      padding: 0;\n    }\n\n    .aobo-hero {\n      background: linear-gradient(135deg, #ffffff 0%, #f7fbff 56%, #eaf2ff 100%);\n      border: 1px solid var(--aobo-border);\n      border-radius: 28px;\n      padding: 42px 38px;\n      margin-bottom: 24px;\n      box-shadow: var(--aobo-shadow);\n      overflow: hidden;\n      position: relative;\n    }\n\n    .aobo-hero::after {\n      content: \"\";\n      position: absolute;\n      right: -90px;\n      top: -90px;\n      width: 260px;\n      height: 260px;\n      border-radius: 50%;\n      background: rgba(12, 86, 208, 0.08);\n    }\n\n    .aobo-eyebrow {\n      display: inline-block;\n      margin-bottom: 12px;\n      padding: 6px 12px;\n      border-radius: 999px;\n      background: #fff7ed;\n      border: 1px solid #fde3bd;\n      color: var(--aobo-orange);\n      font-size: 14px;\n      font-weight: 700;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-hero h1 {\n      margin: 0 0 16px;\n      color: #082d6f;\n      font-size: clamp(34px, 4vw, 54px);\n      line-height: 1.05;\n      letter-spacing: 0;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-hero p {\n      max-width: 930px;\n      margin: 0 0 12px;\n      font-size: 17px;\n      color: #314158;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-hero-actions {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 12px;\n      margin-top: 20px;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-btn {\n      display: inline-flex;\n      align-items: center;\n      justify-content: center;\n      min-height: 42px;\n      padding: 10px 16px;\n      border-radius: 999px;\n      text-align: center;\n      text-decoration: none;\n      font-weight: 700;\n      font-size: 14px;\n      line-height: 1.2;\n      transition: all 0.2s ease;\n      cursor: pointer;\n      white-space: nowrap;\n    }\n\n    .aobo-btn-primary {\n      background: var(--aobo-blue);\n      color: #ffffff !important;\n      border: 1px solid var(--aobo-blue);\n    }\n\n    .aobo-btn-secondary {\n      background: #ffffff;\n      color: var(--aobo-blue) !important;\n      border: 1px solid var(--aobo-border);\n    }\n\n    .aobo-btn:hover {\n      transform: translateY(-1px);\n    }\n\n    .aobo-supply-block {\n      display: grid;\n      grid-template-columns: auto minmax(0, 1fr);\n      align-items: center;\n      gap: 24px;\n      margin: 0 0 30px;\n      border: 1px solid var(--aobo-border);\n      border-radius: 24px;\n      background: #ffffff;\n      box-shadow: 0 14px 36px rgba(12, 86, 208, 0.09);\n      overflow: hidden;\n      padding: 24px;\n    }\n\n    .aobo-supply-image {\n      display: flex;\n      align-items: center;\n      justify-content: center;\n      width: 190px;\n      aspect-ratio: 1;\n      background: #f7fbff;\n      border: 1px solid var(--aobo-border);\n      border-radius: 18px;\n      overflow: hidden;\n    }\n\n    .aobo-supply-image img {\n      display: block;\n      width: 100%;\n      height: 100%;\n      object-fit: cover;\n    }\n\n    .aobo-supply-content {\n      display: flex;\n      flex-direction: column;\n      justify-content: center;\n      padding: 0;\n    }\n\n    .aobo-supply-content p {\n      margin: 0;\n      font-size: 17px;\n      color: var(--aobo-text);\n    }\n\n    .aobo-supply-actions {\n      display: flex;\n      flex-wrap: wrap;\n      gap: 12px;\n      margin-top: 18px;\n    }\n\n    .aobo-supply-actions .aobo-btn {\n      min-width: 190px;\n    }\n\n    .aobo-article {\n      max-width: 1180px;\n      margin: 0 auto;\n    }\n\n    .aobo-article h2 {\n      margin: 44px 0 16px;\n      color: #082d6f;\n      font-size: 30px;\n      line-height: 1.25;\n    }\n\n    .aobo-article h3 {\n      margin: 30px 0 12px;\n      color: #082d6f;\n      font-size: 23px;\n      line-height: 1.3;\n    }\n\n    .aobo-article p {\n      margin: 0 0 18px;\n      font-size: 17px;\n      color: var(--aobo-text);\n    }\n\n    .aobo-table-wrap {\n      overflow-x: auto;\n      margin: 22px 0 28px;\n      border-radius: 18px;\n      border: 1px solid var(--aobo-border);\n      box-shadow: 0 12px 32px rgba(12, 86, 208, 0.07);\n    }\n\n    .aobo-table {\n      width: 100%;\n      min-width: 760px;\n      border-collapse: collapse;\n      background: #ffffff;\n    }\n\n    .aobo-table th {\n      background: var(--aobo-blue-soft);\n      color: #082d6f;\n      text-align: left;\n      padding: 14px 16px;\n      font-size: 15px;\n      vertical-align: top;\n    }\n\n    .aobo-table td {\n      padding: 14px 16px;\n      border-bottom: 1px solid #e8eef8;\n      vertical-align: top;\n      font-size: 15px;\n    }\n\n    .aobo-table tr:last-child td {\n      border-bottom: none;\n    }\n\n    .aobo-table td:first-child {\n      color: #082d6f;\n      font-weight: 700;\n    }\n\n    .aobo-figure {\n      margin: 24px auto 34px;\n      max-width: 760px;\n    }\n\n    .aobo-figure img {\n      display: block;\n      width: 100%;\n      height: auto;\n      border: 1px solid var(--aobo-border);\n      border-radius: 18px;\n      box-shadow: 0 12px 32px rgba(12, 86, 208, 0.07);\n      background: #ffffff;\n    }\n\n    .aobo-figure figcaption {\n      margin-top: 10px;\n      color: #203044;\n      font-size: 14px;\n      font-weight: 700;\n      line-height: 1.5;\n    }\n\n    .aobo-note-box {\n      margin: 34px 0;\n      padding: 22px 24px;\n      border: 1px solid var(--aobo-border);\n      border-left: 5px solid var(--aobo-orange);\n      border-radius: 16px;\n      background: #fbfdff;\n      color: var(--aobo-muted);\n    }\n\n    .aobo-note-box p {\n      margin: 0;\n      color: var(--aobo-muted);\n      font-style: italic;\n    }\n\n    .aobo-final-cta {\n      margin-top: 24px;\n      padding: 34px;\n      border-radius: 28px;\n      background: linear-gradient(135deg, #073b91 0%, #0c56d0 100%);\n      color: #ffffff;\n      box-shadow: 0 18px 45px rgba(12, 86, 208, 0.20);\n      display: flex;\n      align-items: center;\n      justify-content: space-between;\n      gap: 20px;\n      flex-wrap: wrap;\n    }\n\n    .aobo-final-cta h2 {\n      margin: 0 0 12px;\n      color: #ffffff;\n      font-size: 26px;\n    }\n\n    .aobo-final-cta p {\n      margin: 0;\n      color: rgba(255, 255, 255, 0.92);\n      max-width: 740px;\n    }\n\n    .aobo-final-cta .aobo-btn {\n      flex: 0 0 auto;\n      background: #ffffff;\n      border-color: #ffffff;\n      color: var(--aobo-blue) !important;\n    }\n\n    @media (max-width: 760px) {\n      .aobo-hero {\n        padding: 30px 22px;\n      }\n\n      .aobo-hero h1 {\n        font-size: 34px;\n      }\n\n      .aobo-article h2 {\n        font-size: 25px;\n      }\n\n      .aobo-supply-block {\n        grid-template-columns: 1fr;\n        gap: 18px;\n        padding: 20px;\n      }\n\n      .aobo-supply-image {\n        width: min(190px, 100%);\n        margin: 0 auto;\n      }\n\n      .aobo-supply-image img {\n        width: 100%;\n      }\n\n      .aobo-supply-content {\n        padding: 0;\n      }\n\n      .aobo-final-cta {\n        padding: 28px 22px;\n      }\n    }\n  <\/style>\n\n  <div class=\"aobo-wrap\">\n    <header class=\"aobo-hero\">\n      <h1>S7 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/h1>\n      <p>S7 \uacf5\uad6c\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 649~677\u00b0C(1200~1250\u00b0F)\ub85c \uc608\uc5f4\ud55c \ud6c4 \uc57d 940\u00b0C(1725\u00b0F)\uc5d0\uc11c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\ud558\uace0, \ucd5c\ub300 \uc57d 63.5mm(2.5\uc778\uce58) \ud06c\uae30\uc758 \ub2e8\uba74\uc740 \uacf5\ub7ad\ud55c \ub2e4\uc74c \uc989\uc2dc \uc774\uc911 \ud15c\ud37c\ub9c1\uc744 \uc801\uc6a9\ud558\uc5ec \uc5f4\ucc98\ub9ac\ud569\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc5d0 \uc0ac\uc6a9\ub418\ub294 S7\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 204~260\u00b0C(400~500\u00b0F)\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud558\uc5ec \uc57d 56~58 HRC\uc758 \uc77c\ubc18\uc801\uc778 \uac00\uacf5 \uacbd\ub3c4\ub97c \uc5bb\uc2b5\ub2c8\ub2e4.<\/p>\n    <\/header>\n\n    <section class=\"aobo-supply-block\">\n      <div class=\"aobo-supply-image\">\n        <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/S7.webp\" alt=\"Aobo Steel\uc5d0\uc11c \uacf5\uae09\ud558\ub294 S7 \uacf5\uad6c\uac15 \ubd09\uc7ac\" loading=\"lazy\">\n      <\/div>\n      <div class=\"aobo-supply-content\">\n        <p>\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 \uac00\uacf5 \ubc0f \uc790\uccb4 \uc5f4\ucc98\ub9ac \uc900\ube44\uac00 \uc644\ub8cc\ub41c \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c S7 \uacf5\uad6c\uac15\uc744 \uacf5\uae09\ud569\ub2c8\ub2e4. \uc7ac\uace0 \ubc0f \uaddc\uaca9\uc744 \ud655\uc778\ud558\uc2dc\uac70\ub098, \uacac\uc801\uc744 \uc694\uccad\ud558\uc2dc\ub824\uba74 \ud544\uc694\ud55c \uaddc\uaca9\uc744 \ubcf4\ub0b4\uc8fc\uc2ed\uc2dc\uc624.<\/p>\n        <div class=\"aobo-supply-actions\">\n          <a class=\"aobo-btn aobo-btn-primary popmake-16052\" href=\"javascript:void(0);\">\ubb38\uc758 \ubcf4\ub0b4\uae30<\/a>\n          <a class=\"aobo-btn aobo-btn-secondary\" href=\"https:\/\/aobosteel.com\/ko\/s7-tool-steel\/\">S7 \uacf5\uae09 \uc0c1\uc138 \uc815\ubcf4\ub97c \ud655\uc778\ud558\uc138\uc694<\/a>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <main class=\"aobo-article\">\n      <h2>S7 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac04\ud3b8 \uac00\uc774\ub4dc<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\ud504\ub85c\uc138\uc2a4 \ub2e8\uacc4<\/th><th>\uc628\ub3c4<\/th><th>\ub2f4\uadf8\ub294 \uc2dc\uac04<\/th><th>\ub0c9\uac01 \ubc29\uc2dd<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uac00\uc5f4 \ub0c9\uac01<\/td><td>815\u2013870 \u00b0C<\/td><td>1~1.5\uc2dc\uac04\/\uc778\uce58<\/td><td>\uc6a9\uad11\ub85c\ub97c 482\u00b0C\uae4c\uc9c0 \ub0c9\uac01\ud55c \ud6c4 \uacf5\ub7ad\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc2a4\ud2b8\ub808\uc2a4 \ud574\uc18c<\/td><td>649\u2013677 \u00b0C<\/td><td>1~2\uc2dc\uac04\/\uc778\uce58<\/td><td>\uc6a9\uad11\ub85c \ub0c9\uac01 \uc120\ud638<\/td><\/tr>\n            <tr><td>\uc608\uc5f4<\/td><td>649\u2013704 \u00b0C<\/td><td>\uade0\uc77c\ud574\uc9c8 \ub54c\uae4c\uc9c0<\/td><td>\u2014<\/td><\/tr>\n            <tr><td>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654<\/td><td>940\u2013982 \u00b0C<\/td><td>\uc139\uc158 \ud06c\uae30\uc5d0 \ub530\ub77c \uc81c\uc5b4\ub429\ub2c8\ub2e4<\/td><td>\ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub77c \uacf5\uae30 \ub610\ub294 \uc624\uc77c<\/td><\/tr>\n            <tr><td>\ub2f4\uae08\uc9c8<\/td><td>\u2014<\/td><td>\u2014<\/td><td>\uacf5\uae30 \u226463.5mm; \uc624\uc77c \ub610\ub294 \ud50c\ub798\uc2dc \uc624\uc77c &gt;63.5mm<\/td><\/tr>\n            <tr><td>\ub2f4\uae08\uc9c8<\/td><td>204\u2013538 \u00b0C<\/td><td>2\uc2dc\uac04\/\uc778\uce58, \ub450 \ubc88<\/td><td>\uc0ac\uc774\ud074 \uc0ac\uc774\uc5d0 \uacf5\uae30\ub97c \uc2dd\ud788\uc138\uc694.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\ub2e8\uba74 \ud06c\uae30\ub294 \ub2f4\uae08\uc9c8 \ubc29\ubc95\uacfc \ucd5c\uc885 \uacbd\ub3c4\uc5d0 \ud070 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uc587\uac70\ub098 \uc911\uac04 \ub450\uaed8\uc758 \ub2e8\uba74\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uacf5\ub7ad\uc73c\ub85c \ucd5c\ub300 \uacbd\ub3c4\ub97c \uc5bb\uc744 \uc218 \uc788\uc9c0\ub9cc, \ub450\uaebc\uc6b4 \ub2e8\uba74\uc740 \uc911\uc2ec\ubd80 \uacbd\ub3c4\uac00 \ub0ae\uc544\uc9c0\ub294 \uac83\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \ub354 \ube60\ub978 \ub0c9\uac01\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n      <h2>S7 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uacf5\uc815 \ub2e8\uacc4\ubcc4 \uc548\ub0b4<\/h2>\n      <h3>1. \uc608\uc5f4<\/h3>\n      <p>S7 \uacf5\uad6c\uac15\uc744 \uac00\uc5f4\ud558\ub294 \ub3d9\uc548 \ud0c8\ud0c4\ub418\uc9c0 \uc54a\ub3c4\ub85d \ubcf4\ud638\ud558\uc2ed\uc2dc\uc624. \uc81c\uc5b4 \ubd84\uc704\uae30\ub85c, \uc9c4\uacf5\ub85c, \uc911\uc131 \uc5fc\uc695 \ub610\ub294 \ubc00\ubd09\ub41c \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ud638\uc77c\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/p>\n      <p>649~677\u00b0C(1200~1250\u00b0F)\uae4c\uc9c0 \uade0\uc77c\ud558\uac8c \uac00\uc5f4\ud558\uace0 \ub2e8\uba74 \uc804\uccb4\uac00 \ud574\ub2f9 \uc628\ub3c4\uc5d0 \ub3c4\ub2ec\ud560 \ub54c\uae4c\uc9c0 \uc720\uc9c0\ud569\ub2c8\ub2e4. \uc791\uc740 \ub2e8\uba74\uc758 \uacbd\uc6b0, \uc628\ub3c4\uac00 \uade0\uc77c\ud574\uc9c4 \ud6c4 10~15\ubd84 \uc815\ub3c4 \uc720\uc9c0\ud558\ub294 \uac83\uc73c\ub85c \ucda9\ubd84\ud569\ub2c8\ub2e4.<\/p>\n      <p>\uc608\uc5f4\uc740 \uc5f4 \ucda9\uaca9\uc744 \uc904\uc774\uace0, \uc628\ub3c4 \uade0\uc77c\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uba70, \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uae4c\uc9c0 \ucd5c\uc885\uc801\uc73c\ub85c \uc628\ub3c4\uac00 \uc0c1\uc2b9\ud558\ub294 \ub3d9\uc548 \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc744 \ub0ae\ucda5\ub2c8\ub2e4.<\/p>\n\n      <h3>2. \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654<\/h3>\n      <p>\uc628\ub3c4\ub97c \uc57d 1725\u00b0F(940\u00b0C)\uae4c\uc9c0 \uc62c\ub9ac\uc2ed\uc2dc\uc624. \uce21\uc815\uc740 \ubd80\ud488\uc774 \uc644\uc804\ud788 \uac00\uc5f4\ub41c \ud6c4\uc5d0 \uc2dc\uc791\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <p>\uc720\uc9c0 \uc2dc\uac04\uc740 \uc2e0\uc911\ud558\uac8c \uc870\uc808\ud574\uc57c \ud569\ub2c8\ub2e4. \uacfc\ub3c4\ud55c \uc628\ub3c4 \ub610\ub294 \uc720\uc9c0 \uc2dc\uac04\uc740 \uacb0\uc815\ub9bd \uc870\ub300\ud654, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8, \uc778\uc131 \uc800\ud558 \ubc0f \uce58\uc218 \ubd88\uc548\uc815\uc131\uc744 \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\ub2e8\uba74 \ub450\uaed8<\/th><th>\uad8c\uc7a5 \ub2f4\uadf8\ub294 \uc2dc\uac04<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>1\/8\uc778\uce58 \/ 3.2mm<\/td><td>30\ubd84<\/td><\/tr>\n            <tr><td>1\/4\uc778\uce58 \/ 6.4mm<\/td><td>40\ubd84<\/td><\/tr>\n            <tr><td>1\/2\uc778\uce58 \/ 12.7mm<\/td><td>45~50\ubd84<\/td><\/tr>\n            <tr><td>3\/4\uc778\uce58 \/ 19mm<\/td><td>50~55\ubd84<\/td><\/tr>\n            <tr><td>1\uc778\uce58 \uc774\uc0c1 \/ 25mm<\/td><td>\uc57d 1\uc2dc\uac04\/\uc778<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h3>3. \ub2f4\uae08\uc9c8<\/h3>\n      <p>\ucd5c\ub300 2.5\uc778\uce58(\uc57d 63.5mm) \uae38\uc774\uc758 \ub2e8\uba74\uc5d0\ub294 \uacf5\uae30 \ub0c9\uac01\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624. \ud15c\ud37c\ub9c1 \uc804\uc5d0 \ubd80\ud488\uc744 \uc57d 150\u00b0F(65\u00b0C)\uae4c\uc9c0 \ub0c9\uac01\ud558\uc2ed\uc2dc\uc624.<\/p>\n      <p>\ub2e8\uba74\uc801\uc774 2.5\uc778\uce58(\uc57d 6.3cm) \uc774\uc0c1\uc778 \uacbd\uc6b0\uc5d0\ub294 \ub354 \ube60\ub978 \ub0c9\uac01 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624. \uc77c\ubc18\uc801\uc73c\ub85c \ud50c\ub798\uc2dc \uc624\uc77c \ud01c\uce6d(flash oil quenching)\uc774 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc721\uc548\uc73c\ub85c \ubcf4\uc774\ub294 \ubd89\uc740\uc0c9 \uc5f4\uc774 \uc0ac\ub77c\uc9c8 \ub54c\uae4c\uc9c0 \uc624\uc77c\uc5d0 \ub2f4\uadf8\uace0 \uad50\ubc18\ud55c \ub2e4\uc74c, \ubd80\ud488\uc744 \uaebc\ub0b4 \uc57d 150\u00b0F(\uc57d 65\u00b0C)\uae4c\uc9c0 \uacf5\uae30 \uc911\uc5d0\uc11c \ub0c9\uac01\ud558\uc2ed\uc2dc\uc624.<\/p>\n      <p>\uacf5\uae30 \ub0c9\uac01\uc740 \uce58\uc218 \uc81c\uc5b4 \ub2a5\ub825\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \ubc18\uba74, \uc624\uc77c \uae30\ubc18 \ub0c9\uac01\uc740 \ub354 \ud070 \ub2e8\uba74\uc774 \uc804\uccb4 \ub2e8\uba74\uc5d0 \uac78\uccd0 \ucda9\ubd84\ud55c \uacbd\ub3c4\ub97c \uc5bb\ub3c4\ub85d \ub3c4\uc640\uc90d\ub2c8\ub2e4.<\/p>\n\n      <h3>4. \ub2f4\uae08\uc9c8<\/h3>\n      <p>\ubd80\ud488\uc774 \uc57d 65\u00b0C(150\u00b0F)\uae4c\uc9c0 \uc2dd\uc73c\uba74 \uc989\uc2dc \ud15c\ud37c\ub9c1\uc744 \uc2dc\uc791\ud558\uc2ed\uc2dc\uc624.<\/p>\n      <p>S7\uc740 \uc774\uc911 \uc5f4\ucc98\ub9ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uac01 \uc5f4\ucc98\ub9ac \uc8fc\uae30\ub294 \ub2e8\uba74 \ub450\uaed8 1\uc778\uce58\ub2f9 2\uc2dc\uac04 \ub3d9\uc548 \uc720\uc9c0\ud574\uc57c \ud558\uba70, \ub450 \ubc88\uc9f8 \uc8fc\uae30 \uc804\uc5d0 \uc2e4\uc628\uae4c\uc9c0 \uc644\uc804\ud788 \uacf5\ub7ad\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <p>\ub300\ubd80\ubd84\uc758 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\ub294 400~500\u00b0F(204~260\u00b0C)\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud569\ub2c8\ub2e4. \uc774 \uc628\ub3c4\uc5d0\uc11c \uc77c\ubc18\uc801\uc73c\ub85c 56~58 HRC \uc815\ub3c4\uc758 \uac00\uacf5 \uacbd\ub3c4\ub97c \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>\uace0\uc628 \uc791\uc5c5\uc774\ub098 \uace0\uc628 \ud658\uacbd\uc5d0\uc11c\uc758 \uc0ac\uc6a9 \uc2dc\uc5d0\ub294 \uc5f4 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud574 900~1000\u00b0F(482~538\u00b0C)\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud558\uc2ed\uc2dc\uc624.<\/p>\n      <p>\uc12d\uc528 204\ub3c4(\ud654\uc528 400\ub3c4) \ubbf8\ub9cc\uc758 \uc800\uc628 \ud15c\ud37c\ub9c1\uc740 \uacbd\ub3c4\ub97c \ub192\uc77c \uc218 \uc788\uc9c0\ub9cc \ucde8\uc131 \uc704\ud5d8\ub3c4 \uc99d\uac00\uc2dc\ud0a4\ubbc0\ub85c, \ucd5c\ub300 \uacbd\ub3c4\uac00 \ucd5c\uc6b0\uc120 \ubaa9\ud45c\uc774\uace0 \uc778\uc131 \uc190\uc2e4\uc774 \ud5c8\uc6a9 \uac00\ub2a5\ud55c \uacbd\uc6b0\uac00 \uc544\ub2c8\ub77c\uba74 \uc77c\ubc18\uc801\uc778 \uc0b0\uc5c5 \uc6a9\ub3c4\uc5d0\ub294 \uad8c\uc7a5\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n      <h2>S7 \uacf5\uad6c\uac15 \uc5b4\ub2d0\ub9c1 \ubc0f \uc751\ub825 \uc81c\uac70<\/h2>\n      <h3>1. \uc5b4\ub2d0\ub9c1<\/h3>\n      <p>S7 \uacf5\uad6c\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\ub85c \uacf5\uae09\ub429\ub2c8\ub2e4. \uc7ac\uc5b4\ub2d0\ub9c1\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uacbd\ud654 \ud6c4 \uac00\uacf5\uc131\uc744 \ubcf5\uc6d0\ud558\uac70\ub098 \uacf5\uad6c\ub97c \uc7ac\uac00\uacf5\ud560 \ub54c\ub9cc \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n      <p>\ud0c8\ud0c4\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc5b4\ub2d0\ub9c1\uc740 \uc81c\uc5b4\ub41c \ubd84\uc704\uae30, \uc9c4\uacf5\ub85c \ub610\ub294 \uc911\uc131\uc5fc \ud658\uacbd\uc5d0\uc11c \uc218\ud589\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <p>\uad8c\uc7a5 \uc5f4\ucc98\ub9ac \ubc29\ubc95:<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\ubaa9<\/th><th>\ucd94\ucc9c<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uc628\ub3c4<\/td><td>815~870\u00b0C, \uc77c\ubc18\uc801\uc73c\ub85c \uc57d 843\u00b0C<\/td><\/tr>\n            <tr><td>\ub2f4\uadf8\ub294 \uc2dc\uac04<\/td><td>\uc57d 1.5\uc2dc\uac04\/\uc778\uce58<\/td><\/tr>\n            <tr><td>\ub0c9\uac01<\/td><td>\uc6a9\uad11\ub85c\ub97c 482\u00b0C\uae4c\uc9c0 \uc2dc\uac04\ub2f9 14\u00b0C \uc774\ud558\uc758 \uc18d\ub3c4\ub85c \ub0c9\uac01\ud55c \ud6c4 \uacf5\ub7ad\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ucd5c\uc885 \uacbd\ub3c4<\/td><td>\uc77c\ubc18\uc801\uc73c\ub85c 230HB\ub97c \ub118\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\uc801\uc808\ud55c \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub294 \uac00\uacf5\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \ud6c4\uc18d \uacbd\ud654 \uacf5\uc815\uc744 \uc704\ud55c \uac15\ucca0\uc758 \uc900\ube44 \uc0c1\ud0dc\ub97c \ub9cc\ub4e4\uc5b4\uc90d\ub2c8\ub2e4.<\/p>\n\n      <h3>2. \uc2a4\ud2b8\ub808\uc2a4 \ud574\uc18c<\/h3>\n      <p>\uc751\ub825 \uc644\ud654\ub294 \uac70\uce5c \uac00\uacf5, \ubc29\uc804 \uac00\uacf5, \uc6a9\uc811 \ud6c4 \ub610\ub294 \ubcf5\uc7a1\ud55c \ud615\uc0c1 \ubc0f \uace0\ub974\uc9c0 \uc54a\uc740 \ub2e8\uba74\uc744 \uac00\uacf5\ud560 \ub54c \uad8c\uc7a5\ub429\ub2c8\ub2e4.<\/p>\n      <p>\ubaa8\ub4e0 \ubd80\ud488\uc5d0 \ud544\uc218\uc801\uc778 \uac83\uc740 \uc544\ub2c8\uc9c0\ub9cc, \uacbd\ud654 \uacfc\uc815\uc5d0\uc11c \uc794\ub958 \uc751\ub825\uc73c\ub85c \uc778\ud574 \ubcc0\ud615\uc774\ub098 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \uacbd\uc6b0\uc5d0\ub294 \uc911\uc694\ud574\uc9d1\ub2c8\ub2e4.<\/p>\n      <p>\uc2a4\ud2b8\ub808\uc2a4 \ud574\uc18c\uc5d0 \ub3c4\uc6c0\uc774 \ub418\ub294 \ucd94\ucc9c \ubc29\ubc95:<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\ubaa9<\/th><th>\ucd94\ucc9c<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uc628\ub3c4<\/td><td>649\u2013677 \u00b0C<\/td><\/tr>\n            <tr><td>\ub2f4\uadf8\ub294 \uc2dc\uac04<\/td><td>1~2\uc2dc\uac04\/\uc778\uce58<\/td><\/tr>\n            <tr><td>\ub0c9\uac01<\/td><td>\uc6a9\uad11\ub85c \ub0c9\uac01 \ubc29\uc2dd \uc120\ud638<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\uade0\uc77c\ud55c \ub0c9\uac01\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \ubd88\uade0\uc77c\ud55c \ub0c9\uac01\uc740 \uc0c8\ub85c\uc6b4 \uc5f4 \uc751\ub825\uc744 \ubc1c\uc0dd\uc2dc\ud0a4\uace0 \uc751\ub825 \uc644\ud654 \ud6a8\uacfc\ub97c \uac10\uc18c\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n      <h2>S7 \uacf5\uad6c\uac15\uc758 \uc5f4\ucc98\ub9ac \ud6c4 \uacbd\ub3c4<\/h2>\n      <p>S7 \uacf5\uad6c\uac15\uc758 \ucd5c\uc885 \uacbd\ub3c4\ub294 \uc8fc\ub85c \uc624\uc2a4\ud14c\ub098\uc774\uc9d5 \uc628\ub3c4, \ub2f4\uae08\uc9c8 \ubc29\ubc95, \ub2e8\uba74 \ud06c\uae30 \ubc0f \ud15c\ud37c\ub9c1 \uc628\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. S7\uc740 \ub0b4\ucda9\uaca9\uc131\uc744 \uc704\ud574 \uc120\ud0dd\ub418\ub294 \uac15\uc7ac\uc774\ubbc0\ub85c \uc5f4\ucc98\ub9ac \uc2dc \ucd5c\ub300 \uacbd\ub3c4\uc5d0\ub9cc \ucd08\uc810\uc744 \ub9de\ucdb0\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \uc2e4\uc9c8\uc801\uc778 \ubaa9\ud45c\ub294 \ub85c\ud06c\uc6f0 \uacbd\ub3c4, \uc778\uc131 \ubc0f \uade0\uc5f4 \uc800\ud56d\uc131 \uac04\uc758 \uc548\uc815\uc801\uc778 \uade0\ud615\uc744 \uc774\ub8e8\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n      <p>\uc801\uc808\ud55c \uacbd\ud654 \ucc98\ub9ac\ub97c \uac70\uce58\uba74 S7 \uac15\uc7ac\ub294 \ub2f4\uae08\uc9c8 \uc9c1\ud6c4 \uc57d 58~64 HRC\uc758 \uacbd\ub3c4\ub97c \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub2f4\uae08\uc9c8 \uc9c1\ud6c4\uc758 S7 \uac15\uc7ac\ub294 \uc77c\ubc18\uc801\uc778 \uacf5\uad6c \uc6a9\ub3c4\ub85c \uc0ac\uc6a9\ud558\uae30\uc5d0\ub294 \ub108\ubb34 \ucde8\uc131\uc774 \uac15\ud558\ubbc0\ub85c \ub2f4\uae08\uc9c8 \uc9c1\ud6c4 \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub97c \ud574\uc57c \ud569\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc758 \uacbd\uc6b0, \ud15c\ud37c\ub9c1 \ud6c4 \uc77c\ubc18\uc801\uc778 \uac00\uacf5 \uacbd\ub3c4\ub294 \uc57d 56~58 HRC\uc785\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\ud15c\ud37c\ub9c1 \uc628\ub3c4<\/th><th>\ub300\ub7b5\uc801\uc778 \uacbd\ub3c4<\/th><th>\uc2e4\uc9c8\uc801\uc778 \uc758\ubbf8<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\ub2f4\uae08\uc9c8 \uc9c1\ud6c4, \ud15c\ud37c\ub9c1 \uc804<\/td><td>58\u201364 HRC<\/td><td>\ucd5c\ub300 \uacbd\ub3c4\uc774\uc9c0\ub9cc, \uc2e4\uc0ac\uc6a9\uc5d0\ub294 \ub108\ubb34 \ucde8\uc131\uc774 \uac15\ud569\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \uc9c1\ud6c4 \uc989\uc2dc \ud15c\ud37c\ub9c1\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>\n            <tr><td>400\u2013500 \u00b0F \/ 204\u2013260 \u00b0C<\/td><td>56~58 HRC<\/td><td>\ud380\uce58, \ub2e4\uc774, \uc804\ub2e8\ub0a0 \ubc0f \ucda9\uaca9 \ud558\uc911 \uacf5\uad6c\uc5d0 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 \ub0c9\uac04 \uac00\uacf5 \ubc94\uc704\uc785\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc57d 450\u00b0F \/ 230\u00b0C<\/td><td>\uc57d 58 HRC<\/td><td>\ub0b4\ub9c8\ubaa8\uc131\uacfc \ucda9\uaca9 \uc778\uc131\uc774 \ubaa8\ub450 \uc694\uad6c\ub418\ub294 \uc2e4\uc6a9\uc801\uc778 \ubc94\uc6a9 \uc81c\ud488\uad70\uc785\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>500\u2013900 \u00b0F \/ 260\u2013482 \u00b0C<\/td><td>\uc57d 54~56 HRC<\/td><td>\ub0ae\uc740 \ud15c\ud37c\ub9c1 \uc628\ub3c4\ubcf4\ub2e4 \uc6b0\uc218\ud55c \uc778\uc131\uc744 \uac00\uc9c0\uba74\uc11c \uc548\uc815\uc801\uc778 \uacbd\ub3c4 \ubc94\uc704\ub97c \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>900\u20131000 \u00b0F \/ 482\u2013538 \u00b0C<\/td><td>\uc57d 48~52 HRC<\/td><td>\uc5f4 \uc548\uc815\uc131\uc774 \ucd5c\ub300 \uacbd\ub3c4\ubcf4\ub2e4 \ub354 \uc911\uc694\ud55c \uace0\uc628 \uc791\uc5c5\uc774\ub098 \uace0\uc628 \ud658\uacbd\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>1050\u20131150 \u00b0F \/ 565\u2013620 \u00b0C<\/td><td>\uc57d 45 HRC<\/td><td>\ub192\uc740 \ud15c\ud37c\ub9c1 \ubc94\uc704\ub85c \uc778\ud574 \uc5f0\ud654 \uc815\ub3c4\uac00 \ub9e4\uc6b0 \ud07d\ub2c8\ub2e4. \ub0ae\uc740 \uacbd\ub3c4\uac00 \ud5c8\uc6a9\ub418\ub294 \uacbd\uc6b0\uc5d0\ub9cc \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\ub0c9\uac04 \uac00\uacf5 \uc6a9\ub3c4\uc5d0\uc11c S7 \uac15\uc7ac\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 400~500\u00b0F(204~260\u00b0C)\uc5d0\uc11c \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ud558\uc5ec \uc57d 56~58 HRC\uc758 \uacbd\ub3c4\ub97c \uc5bb\uc2b5\ub2c8\ub2e4. \uc774 \ubc94\uc704\ub294 \uacf5\uad6c\uac00 \ucda9\uaca9, \ud30c\uc190 \ubc0f \uc801\ub2f9\ud55c \ub9c8\ubaa8\uc5d0 \ub3d9\uc2dc\uc5d0 \uc800\ud56d\ud574\uc57c \ud560 \ub54c \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n      <p>\uace0\uc628 \uc791\uc5c5\uc774\ub098 \uace0\uc628 \ud658\uacbd\uc5d0\uc11c \uc0ac\uc6a9\ud558\uae30 \uc704\ud574 S7 \uac15\uc7ac\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 900~1000\u00b0F(\uc12d\uc528 \uc57d 427~588\ub3c4)\uc5d0\uc11c \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub429\ub2c8\ub2e4. \uacbd\ub3c4\ub294 \ub0ae\uc544\uc9c0\uc9c0\ub9cc, \ucd5c\ub300 \ub85c\ud06c\uc6f0 \uacbd\ub3c4\ubcf4\ub2e4 \uc5f4 \uc548\uc815\uc131\uacfc \uc5f0\ud654 \uc800\ud56d\uc131\uc774 \ub354 \uc911\uc694\ud55c \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n      <p>\uc77c\ubc18\uc801\uc778 \uc0b0\uc5c5\uc6a9 \uacf5\uad6c\uc758 \uacbd\uc6b0 400\u00b0F(\uc57d 204\u00b0C) \ubbf8\ub9cc\uc758 \uc628\ub3c4\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud558\ub294 \uac83\uc740 \uad8c\uc7a5\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub192\uc740 \uacbd\ub3c4\ub97c \uc720\uc9c0\ud560 \uc218\ub294 \uc788\uc9c0\ub9cc, \ucde8\uc131 \ubc0f \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4. S7 \uacf5\uad6c\ub294 \ub0b4\ubd80 \uc751\ub825\uc744 \uc904\uc774\uace0 \ucd5c\uc885 \uacbd\ub3c4\uc758 \uc2e0\ub8b0\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud574 \ud15c\ud37c\ub9c1 \uc8fc\uae30 \uc0ac\uc774\uc5d0 \uc0c1\uc628\uae4c\uc9c0 \uc644\uc804\ud788 \ub0c9\uac01\ud558\ub294 \uc774\uc911 \ud15c\ud37c\ub9c1\uc744 \ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <p>\uacf5\uad6c\uc758 \ud30c\uc190 \uc720\ud615\uc5d0 \ub530\ub77c \uc801\uc808\ud55c \uacbd\ub3c4\ub97c \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4. \ub9c8\ubaa8\uac00 \uc8fc\ub41c \ubb38\uc81c\ub77c\uba74 \ub0ae\uc740 \uacbd\ub3c4 \ubc94\uc704\uc758 \ud15c\ud37c\ub9c1\uc774 \uc801\ud569\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uade0\uc5f4, \ud30c\uc190 \ub610\ub294 \ucda9\uaca9 \ud30c\uc190\uc774 \uc8fc\ub41c \ubb38\uc81c\ub77c\uba74 \ucd5c\ub300 \uacbd\ub3c4\ub97c \ucd94\uad6c\ud558\ub294 \uac83\ubcf4\ub2e4 \uc778\uc131\uc774 \ub354 \uc88b\uc740 \uc57d\uac04 \ub0ae\uc740 \uacbd\ub3c4\ub97c \uc120\ud0dd\ud558\ub294 \uac83\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \ub354 \uc548\uc804\ud569\ub2c8\ub2e4.<\/p>\n\n      <h2>S7 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac (\uc801\uc6a9 \ubd84\uc57c\ubcc4)<\/h2>\n      <p>S7 \uc5f4\ucc98\ub9ac\ub294 \uacf5\uad6c\uc758 \uc791\uc5c5 \uc870\uac74\uc5d0 \ub530\ub77c \uc870\uc815\ud574\uc57c \ud569\ub2c8\ub2e4. \uc8fc\uc694 \ubcc0\uc218\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud15c\ud37c\ub9c1 \uc628\ub3c4\uc785\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/th><th>\ud15c\ud37c\ub9c1 \ubc94\uc704<\/th><th>\uc77c\ubc18\uc801\uc778 \uacbd\ub3c4<\/th><th>\ucd5c\uc6b0\uc120 \uc21c\uc704<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c, \uae08\ud615, \ud380\uce58, \uc804\ub2e8\ub0a0<\/td><td>400\u2013500 \u00b0F \/ 204\u2013260 \u00b0C<\/td><td>56~58 HRC<\/td><td>\ub9c8\ubaa8 \ubc0f \uc778\uc131 \uade0\ud615<\/td><\/tr>\n            <tr><td>\ucd5c\ub300 \uacbd\ub3c4\uc5d0 \uc911\uc810\uc744 \ub454 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c<\/td><td>345\u2013400 \u00b0F \/ 175\u2013204 \u00b0C<\/td><td>\ub354 \ub192\uc740 \uacbd\ub3c4<\/td><td>\ub0b4\ub9c8\ubaa8\uc131\uc740 \ucd5c\ub300\uc774\uc9c0\ub9cc \uc778\uc131\uc740 \ub0ae\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uace0\uc628 \uc791\uc5c5\uc6a9 \ub610\ub294 \ud50c\ub77c\uc2a4\ud2f1 \uc131\ud615 \ub3c4\uad6c<\/td><td>900\u20131000 \u00b0F \/ 482\u2013538 \u00b0C<\/td><td>48~52 HRC<\/td><td>\uc5f4 \uc548\uc815\uc131<\/td><\/tr>\n            <tr><td>\ucda9\uaca9 \uc9c0\ubc30 \ub3c4\uad6c<\/td><td>700\u2013750 \u00b0F \/ 370\u2013400 \u00b0C<\/td><td>\uc911\uac04 \uacbd\ub3c4<\/td><td>\ud30c\uad34 \uc800\ud56d<\/td><\/tr>\n            <tr><td>\uac15\ub3c4\uc640 \ub0b4\uad6c\uc131\uc758 \uade0\ud615<\/td><td>\uc57d 575\u00b0F \/ 300\u00b0C<\/td><td>\uc81c\uc5b4\ub41c \uacbd\ub3c4<\/td><td>\ud56d\ubcf5 \uac15\ub3c4 \ubc0f \ucda9\uaca9 \uade0\ud615<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\uc77c\ubc18\uc801\uc778 \ub0c9\uac04 \uac00\uacf5 \uc6a9\ub3c4\uc5d0\uc11c\ub294 \uc548\uc815\uc801\uc778 \uacbd\ub3c4\uc640 \uc6b0\uc218\ud55c \ucda9\uaca9 \uc800\ud56d\uc131\uc744 \uc5bb\uae30 \uc704\ud574 \uc12d\uc528 \uc57d 230\ub3c4(\ud654\uc528 450\ub3c4)\uac00 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n      <p>\uace0\uc628 \ud658\uacbd\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uacbd\uc6b0, \uc5f4\ucc98\ub9ac \uc628\ub3c4\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc608\uc0c1 \uc0ac\uc6a9 \uc628\ub3c4\ubcf4\ub2e4 \ucd5c\uc18c 25~50\u00b0F \ub192\uc544\uc57c \ud569\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9 \uc911 \uc5f0\ud654\ub97c \ubc29\uc9c0\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n      <p>\ucda9\uaca9\uc774 \uc8fc\ub41c \uc791\uc6a9\uc810\uc778 \uacf5\uad6c\uc758 \uacbd\uc6b0, \ucd5c\ub300 \uacbd\ub3c4\ubcf4\ub2e4 \uc778\uc131\uacfc \ud30c\uad34 \uc800\ud56d\uc131\uc774 \ub354 \uc911\uc694\ud558\uae30 \ub54c\ubb38\uc5d0 \ub354 \ub192\uc740 \ud15c\ud37c\ub9c1 \uc628\ub3c4\uac00 \ub354 \uc801\ud569\ud55c \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n      <h2>S7 \uacf5\uad6c\uac15 \ub2f4\uae08\uc9c8 \ubc29\ubc95 \uc120\ud0dd<\/h2>\n      <p>\uc801\uc808\ud55c \ub2f4\uae08\uc9c8 \ubc29\ubc95\uc740 \uc8fc\ub85c \ub2e8\uba74 \ud06c\uae30, \ud615\uc0c1 \ubc0f \ubcc0\ud615 \ubbfc\uac10\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\uc0c1\ud0dc<\/th><th>\ubc29\ubc95<\/th><th>\ud575\uc2ec \ud504\ub85c\uc138\uc2a4<\/th><th>\ube44\ud310\uc801 \uace0\uc9c0<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\ub2e8\uba74\uc801 \u226463.5mm<\/td><td>\uacf5\uae30 \uc18c\ud654<\/td><td>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ucc98\ub9ac \ud6c4 \ubc14\ub78c\uc774 \uc5c6\ub294 \uacf3\uc5d0\uc11c \uc2dd\ud788\uc138\uc694.<\/td><td>\ucd5c\uc0c1\uc758 \uce58\uc218 \uc548\uc815\uc131<\/td><\/tr>\n            <tr><td>\ub2e8\uba74 &gt;63.5mm<\/td><td>\uc624\uc77c \uae30\ubc18 \ub0c9\uac01<\/td><td>\ub0c9\uac01 \uc18d\ub3c4\ub97c \ub192\uc5ec \ucf54\uc5b4 \uacbd\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ud0a4\uc138\uc694<\/td><td>\uacf5\ub7ad\uc2dd \ub0c9\uac01\uc774 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc751\ub825 \uc81c\uc5b4\uac00 \ud544\uc694\ud55c \ubb34\uac70\uc6b4 \ubd80\ubd84<\/td><td>\ud50c\ub798\uc2dc \uc624\uc77c \ud01c\uce6d<\/td><td>\ubd89\uc740 \uc5f4\uae30\uac00 \uc0ac\ub77c\uc9c8 \ub54c\uae4c\uc9c0 \uc624\uc77c\ub85c \ub2f4\uae08\uc9c8\ud55c \ud6c4 \uacf5\ub7ad\uc2dc\ud0a4\uc2ed\uc2dc\uc624.<\/td><td>\uc2a4\ud14c\uc778\ub9ac\uc2a4 \ud638\uc77c\uc744 \uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/td><\/tr>\n            <tr><td>\ubcf5\uc7a1\ud558\uac70\ub098 \uc65c\uace1\uc5d0 \ubbfc\uac10\ud55c \ubd80\ud488<\/td><td>\ub9c8\ub974\ud15c\ud37c\ub9c1<\/td><td>595~650\u00b0C\uc758 \uc5fc\uc695\uc5d0 \ub2f4\uac00 \uc628\ub3c4\ub97c \uade0\uc77c\ud558\uac8c \ub9de\ucd98 \ud6c4 \uc790\uc5f0 \ub0c9\uac01\ud569\ub2c8\ub2e4.<\/td><td>\uc5f4 \uad6c\ubc30\ub97c \uc904\uc785\ub2c8\ub2e4<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>S7 \uacf5\uad6c\uc758 \uacbd\uc6b0, \ubcc0\ud615 \uc704\ud5d8\uc744 \uc904\uc774\uae30 \uc704\ud574 \uacf5\uae30 \ub2f4\uae08\uc9c8\uc774 \uc120\ud638\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub300\ud615 \ub2e8\uba74\uc758 \uacbd\uc6b0, \uacf5\uae30 \ub0c9\uac01\ub9cc\uc73c\ub85c\ub294 \uc644\uc804\ud55c \uacbd\ub3c4\ub97c \uc5bb\uae30\uc5d0 \ucda9\ubd84\ud55c \ub0c9\uac01 \uc18d\ub3c4\ub97c \ud655\ubcf4\ud558\uc9c0 \ubabb\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <figure class=\"aobo-figure\">\n        <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/06\/S7-IT.avif\" alt=\"\uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc\uc758 S7 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \ucc28\ud2b8\" loading=\"lazy\">\n        <figcaption>\ucd9c\ucc98: \uc5f4\ucc98\ub9ac \uae30\uc220\uc790 \uc548\ub0b4\uc11c: \ucca0\uac15 \uc81c\ud488 \uad00\ub828 \uc2e4\ubb34 \ubc0f \uc808\ucc28, ASM International, 1995, 532\ucabd.<\/figcaption>\n      <\/figure>\n\n      <h2>S7 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uc2dc \ud754\ud788 \ubc1c\uc0dd\ud558\ub294 \ubb38\uc81c\uc810<\/h2>\n      <p>S7 \uc5f4\ucc98\ub9ac \uc2e4\ud328\uc758 \ub300\ubd80\ubd84\uc740 \ubd84\uc704\uae30 \uc81c\uc5b4, \ub2e8\uba74 \ud06c\uae30, \uc794\ub958 \uc751\ub825, \uacfc\ub3c4\ud55c \uc628\ub3c4 \ub610\ub294 \ud15c\ud37c\ub9c1 \uc9c0\uc5f0\uacfc \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\ubb38\uc81c<\/th><th>\uadfc\ubcf8 \uc6d0\uc778<\/th><th>\uc2dc\uc815 \uc870\uce58<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\ud0c8\ud0c4<\/td><td>\uc0b0\ud654 \ubd84\uc704\uae30\uc5d0\uc11c\uc758 \ud45c\uba74 \ud0c4\uc18c \uc190\uc2e4<\/td><td>\uc9c4\uacf5, \uc81c\uc5b4\ub41c \ubd84\uc704\uae30, \uc911\uc131\uc5fc \ub610\ub294 \ubc00\ubd09\ub41c \ud638\uc77c\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>\n            <tr><td>\ubcc0\ud615 \ub610\ub294 \uc5f4 \uade0\uc5f4<\/td><td>\uc5f4 \uad6c\ubc30, \ub0a0\uce74\ub85c\uc6b4 \ud615\uc0c1 \ub610\ub294 \uac00\uacf5 \uc751\ub825<\/td><td>\uc801\uc808\ud558\uac8c \uc608\uc5f4\ud558\uace0, \uacbd\ud654 \uc804\uc5d0 \uc751\ub825\uc744 \uc81c\uac70\ud558\uba70, \ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac\ub97c \ud53c\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>\n            <tr><td>\ub113\uc740 \ubd80\ubd84\uc5d0\uc11c \uacbd\ub3c4\uac00 \ub0ae\uc74c<\/td><td>\ud574\ub2f9 \uad6c\uac04\uc758 \ub0c9\uac01 \uc18d\ub3c4\uac00 \ub108\ubb34 \ub290\ub9bd\ub2c8\ub2e4.<\/td><td>\ub450\uaebc\uc6b4 \ubd80\ubd84\uc5d0\ub294 \uc624\uc77c \uae30\ubc18 \ub0c9\uac01 \ub610\ub294 \ud50c\ub798\uc2dc \uc624\uc77c \ub2f4\uae08\uc9c8\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>\n            <tr><td>\uacfc\uc5f4 \ub610\ub294 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8<\/td><td>\uacfc\ub3c4\ud55c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4 \ub610\ub294 \uc720\uc9c0 \uc2dc\uac04<\/td><td>\uc628\ub3c4\uc640 \uce68\uc9c0 \uc2dc\uac04\uc744 \uc5c4\uaca9\ud558\uac8c \uc870\uc808\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>\n            <tr><td>\ub2f4\uae08\uc9c8 \ud6c4 \uade0\uc5f4 \ubc1c\uc0dd<\/td><td>\uc9c0\uc5f0\ub41c \ub2f4\uae08\uc9c8 \ub610\ub294 \uacfc\ub3c4\ud55c \ub0b4\ubd80 \uc2a4\ud2b8\ub808\uc2a4<\/td><td>\uc989\uc2dc \ub2f4\uae08\uc9c8\uc744 \ud558\uace0 \uc774\uc911 \ub2f4\uae08\uc9c8\uc744 \uc801\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\ud0c8\ud0c4\uc740 \uc644\uc804\ud788 \uacbd\ud654\ub418\uc9c0 \uc54a\ub294 \uc5f0\uc9c8 \ud45c\uba74\uce35\uc744 \uc0dd\uc131\ud558\uc5ec \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc800\ud558\uc2dc\ud0b5\ub2c8\ub2e4. \uacfc\uc5f4\uc740 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8, \uacb0\uc815\ub9bd \uc870\ub300\ud654, \uce58\uc218 \ubd88\uc548\uc815\uc131 \ubc0f \uc778\uc131 \uc800\ud558\uc758 \uc704\ud5d8\uc744 \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4. \ud2b9\ud788 \uc9c0\uc5f0 \ud15c\ud37c\ub9c1\uc740 \ub2f4\uae08\uc9c8\ub41c \uad6c\uc870\uc5d0 \ub192\uc740 \ub0b4\ubd80 \uc751\ub825\uc774 \uc874\uc7ac\ud558\uae30 \ub54c\ubb38\uc5d0 \ub9e4\uc6b0 \uc704\ud5d8\ud569\ub2c8\ub2e4.<\/p>\n\n      <div class=\"aobo-note-box\">\n        <p>\ucc38\uace0: \ub2f9\uc0ac\ub294 S7 \uc5f4\ucc98\ub9ac \uc11c\ube44\uc2a4\ub97c \uc81c\uacf5\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 S7 \uacf5\uad6c\uac15\uc744 \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\ub85c \uacf5\uae09\ud558\uba70, \ubcf8 \uc548\ub0b4\uc11c\ub294 \uace0\uac1d\uc758 \uac00\uacf5 \ubc0f \uc801\uc6a9 \uad00\ub828 \uacb0\uc815\uc744 \uc9c0\uc6d0\ud558\uae30 \uc704\ud55c \uae30\uc220\uc801 \ucc38\uace0 \uc790\ub8cc\ub85c \uc81c\uacf5\ub429\ub2c8\ub2e4.<\/p>\n      <\/div>\n    <\/main>\n\n    <section class=\"aobo-final-cta\">\n      <div>\n        <h2>\ucda9\uaca9 \ubc29\uc9c0 \uacf5\uad6c \uc81c\uc791\uc5d0 S7 \uacf5\uad6c\uac15\uc774 \ud544\uc694\ud558\uc2e0\uac00\uc694?<\/h2>\n        <p>\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 \uc0b0\uc5c5\uc6a9 \uacf5\uad6c \uc81c\uc791\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c S7 \uacf5\uad6c\uac15\uc744 \uacf5\uae09\ud569\ub2c8\ub2e4. \uacac\uc801\uc744 \ubc1b\uc73c\uc2dc\ub824\uba74 \ud544\uc694\ud55c \ud06c\uae30, \uc218\ub7c9, \uacf5\ucc28 \ubc0f \uc6a9\ub3c4\ub97c \ubcf4\ub0b4\uc8fc\uc2ed\uc2dc\uc624.<\/p>\n      <\/div>\n      <a class=\"aobo-btn popmake-16052\" href=\"javascript:void(0);\">\ubb38\uc758 \ubcf4\ub0b4\uae30<\/a>\n    <\/section>\n  <\/div>\n<\/section>\n\n\n\n<ul class=\"wp-block-yoast-seo-related-links yoast-seo-related-links\">\n<li><a href=\"https:\/\/aobosteel.com\/ko\/s7-tool-steel\/\">AISI S7 \uacf5\uad6c\uac15 \uacf5\uae09\uc5c5\uccb4 | DIN 1.2355 | \ub0b4\ucda9\uaca9\uc131 \uacf5\uad6c\uac15 \ub300\ub7c9 \uacf5\uae09<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/420-stainless-steel-heat-treatment\/\">420\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc | \uacbd\ud654, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/h13-steel-hardness\/\">H13\uac15 \uacbd\ub3c4: HRC \ubc94\uc704, \ud15c\ud37c\ub9c1 \ucc28\ud2b8 \ubc0f \uc801\uc6a9 \ubd84\uc57c<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/h11-tool-steel-heat-treatment\/\">H11 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/blog\/is-a2-tool-steel-wear-resistant\/\">A2 \uacf5\uad6c\uac15\uc740 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub6f0\uc5b4\ub09c\uac00\uc694? \uacbd\ub3c4, \uc6a9\ub3c4 \ubc0f \ube44\uad50<\/a><\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-faq\" class=\"wp-block-heading\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1777338846448\"><strong class=\"schema-faq-question\">S7 \uacf5\uad6c\uac15\uc5d0 \uad8c\uc7a5\ub418\ub294 \uacbd\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">\ub300\ubd80\ubd84\uc758 \uc0b0\uc5c5 \ubd84\uc57c\uc5d0\uc11c S7 \uacf5\uad6c\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 56~58 HRC\uc758 \uacbd\ub3c4\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<br>\ub0ae\uc740 \uacbd\ub3c4(48~52 HRC): \uc6b0\uc218\ud55c \uc778\uc131\uc744 \uac00\uc9c0\uba70 \uace0\uc628 \uc791\uc5c5\uc774\ub098 \ucda9\uaca9\uc774 \ub9ce\uc774 \uac00\ud574\uc9c0\ub294 \uacf5\uad6c\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<br>\uacbd\ub3c4\uac00 \ub192\uc744\uc218\ub85d(58 HRC \uc774\uc0c1): \ub0b4\ub9c8\ubaa8\uc131\uc740 \ud5a5\uc0c1\ub418\uc9c0\ub9cc \ucde8\uc131\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4.<br>\uc801\uc808\ud55c \uacbd\ub3c4\ub294 \ud30c\uc190 \uc6d0\uc778\uc774 \ub9c8\ubaa8\uc778\uc9c0 \ucda9\uaca9\uc778\uc9c0\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777338878733\"><strong class=\"schema-faq-question\">S7 \uacf5\uad6c\uac15\uc740 \uc624\uc77c \ub2f4\uae08\uc9c8\uc774 \ud544\uc694\ud55c\uac00\uc694?<\/strong> <p class=\"schema-faq-answer\">\ud56d\uc0c1 \uadf8\ub7f0 \uac74 \uc544\ub2d9\ub2c8\ub2e4.<br>S7\uc740 \uacf5\uae30 \uacbd\ud654\uac15\uc774\ubbc0\ub85c \uc57d 63.5mm(2.5\uc778\uce58)\uae4c\uc9c0\uc758 \ub2e8\uba74\uc5d0\ub294 \uacf5\uae30 \ub2f4\uae08\uc9c8\ub9cc\uc73c\ub85c\ub3c4 \ucda9\ubd84\ud569\ub2c8\ub2e4.<br>\ud558\uc9c0\ub9cc:<br>\ub450\uaebc\uc6b4 \ubd80\ubd84\uc758 \uacbd\uc6b0, \uacf5\ub7ad\uc73c\ub85c\ub294 \uc644\uc804\ud55c \uacbd\ud654\ub97c \uc5bb\uc9c0 \ubabb\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br>\uc801\uc808\ud55c \uacbd\ud654\ub97c \uc704\ud574\uc11c\ub294 \uc624\uc77c \ub2f4\uae08\uc9c8 \ub610\ub294 \ud50c\ub798\uc2dc \uc624\uc77c \ub2f4\uae08\uc9c8\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<br>\ub2f4\uae08\uc9c8 \ubc29\ubc95\uc740 \ud56d\uc0c1 \ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub77c \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777338879534\"><strong class=\"schema-faq-question\">S7\uc5d0 \uc774\uc911 \uc5f4\ucc98\ub9ac\uac00 \ud544\uc694\ud55c \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">\uc774\uc911 \uc5f4\ucc98\ub9ac\uac00 \ud544\uc694\ud55c \uc774\uc720\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<br>\ub2f4\uae08\uc9c8 \ud6c4 \ub0b4\ubd80 \uc751\ub825\uc744 \uc904\uc785\ub2c8\ub2e4<br>\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uad6c\uc870\ub97c \uc548\uc815\ud654\uc2dc\ud0a4\ub2e4<br>\uc778\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \uade0\uc5f4 \uc704\ud5d8\uc744 \uc904\uc785\ub2c8\ub2e4.<br>S7 \ub4f1\uae09\uc758 \uacbd\uc6b0 \ub2e8\uc77c \uc5f4\ucc98\ub9ac\ub9cc\uc73c\ub85c\ub294 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc73c\uba70, \uc0ac\uc6a9 \uc911 \uc131\ub2a5 \ubd88\uc548\uc815\uc73c\ub85c \uc774\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777338880237\"><strong class=\"schema-faq-question\">S7\uc740 400\u00b0F(\uc12d\uc528 \uc57d 204\ub3c4) \uc774\ud558\uc5d0\uc11c \uc5f4\ucc98\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">\ub124, \ud558\uc9c0\ub9cc \uc77c\ubc18\uc801\uc778 \uc0b0\uc5c5 \ud604\uc7a5\uc5d0\uc11c\ub294 \uad8c\uc7a5\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<br>345~400\u00b0F\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud558\uba74 \uacbd\ub3c4\ub97c \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br>\ud558\uc9c0\ub9cc \uc774\ub294 \uc778\uc131\uc744 \ud06c\uac8c \uc800\ud558\uc2dc\ud0a4\uace0 \uade0\uc5f4 \uc704\ud5d8\uc744 \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4.<br>\uc774 \uc800\uc628 \uc5f4\ucc98\ub9ac \uacf5\ubc95\uc740 \ucd5c\ub300\uc758 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc694\uad6c\ub418\uace0 \ucda9\uaca9 \ud558\uc911\uc774 \ucd5c\uc18c\ud654\ub41c \uacbd\uc6b0\uc5d0\ub9cc \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777338880956\"><strong class=\"schema-faq-question\">S7 \uac15\uc7ac\ub97c \ub2f4\uae08\uc9c8 \uc9c1\ud6c4 \ud15c\ud37c\ub9c1\ud558\uc9c0 \uc54a\uc73c\uba74 \uc5b4\ub5bb\uac8c \ub420\uae4c\uc694?<\/strong> <p class=\"schema-faq-answer\">\uc9c0\uc5f0\ub41c \ub2e8\ub828\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uacb0\uacfc\ub97c \ucd08\ub798\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<br>\ub192\uc740 \uc794\ub958 \uc751\ub825<br>\uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8 \uc99d\uac00<br>\uc778\uc131 \uac10\uc18c<br>S7\uc740 \ub2f4\uae08\uc9c8 \ud6c4 \uc57d 65\u00b0C(150\u00b0F)\uae4c\uc9c0 \uc2dd\uc73c\uba74 \uc989\uc2dc \ud15c\ud37c\ub9c1\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777338918053\"><strong class=\"schema-faq-question\">S7 \uacf5\uad6c\uac15\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ud15c\ud37c\ub9c1 \uc628\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">\ub0c9\uac04 \uac00\uacf5 \ubd84\uc57c\uc5d0\uc11c \uac00\uc7a5 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 \uc628\ub3c4 \ubc94\uc704\ub294 400~500\u00b0F(204~260\u00b0C)\uc785\ub2c8\ub2e4.<br>\uc77c\ubc18\uc801\uc778 \ubc29\ubc95: \uc57d 230\u00b0C(450\u00b0F) \uc815\ub3c4\uc5d0\uc11c \uacbd\ub3c4\uc640 \uc778\uc131\uc758 \uc548\uc815\uc801\uc778 \uade0\ud615\uc744 \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br>\uace0\uc628 \uc791\uc5c5\uc758 \uacbd\uc6b0: 900~1000\u00b0F(482~538\u00b0C)\ub97c \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777338981206\"><strong class=\"schema-faq-question\">S7\uc740 \uc65c \uace0\uc628 \uc5f4\ucc98\ub9ac \uc628\ub3c4\uc5d0\uc11c \uacbd\ub3c4\uac00 \ub5a8\uc5b4\uc9c0\ub294\uac00?<\/strong> <p class=\"schema-faq-answer\">\uace0\uc628 \uc5f4\ucc98\ub9ac \uc2dc(\uc12d\uc528 \uc57d 538\ub3c4\/\ud654\uc528 \uc57d 1000\ub3c4 \uc774\uc0c1):<br>\ud0c4\ud654\ubb3c \uc870\ub300\ud654 \uc99d\uac00<br>\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uad6c\uc870\uac00 \uc5f0\ud654\ub429\ub2c8\ub2e4<br>\uacbd\ub3c4\ub294 \ub354 \ube60\ub974\uac8c \uac10\uc18c\ud569\ub2c8\ub2e4.<br>\uc774\uac83\uc774 \ubc14\ub85c \uace0\uc628 \ud15c\ud37c\ub9c1\uc774 \uacbd\ub3c4\ubcf4\ub2e4 \uc778\uc131\uacfc \uc5f4 \uc548\uc815\uc131\uc774 \ub354 \uc911\uc694\ud560 \ub54c\ub9cc \uc0ac\uc6a9\ub418\ub294 \uc774\uc720\uc785\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777338981928\"><strong class=\"schema-faq-question\">S7 \uc5f4\ucc98\ub9ac \uc911 \ud0c8\ud0c4\uc744 \ubc29\uc9c0\ud558\ub294 \ubc29\ubc95\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">\ud0c8\ud0c4\uc740 \uac00\uc5f4 \uc911\uc5d0 \ud45c\uba74\uc5d0\uc11c \ud0c4\uc18c\uac00 \ub5a8\uc5b4\uc838 \ub098\uac00\ub294 \ud604\uc0c1\uc785\ub2c8\ub2e4. \uc774\ub97c \ubc29\uc9c0\ud558\ub824\uba74 \ub2e4\uc74c\uacfc \uac19\uc774 \ud558\uc2ed\uc2dc\uc624.<br>\uc9c4\uacf5\ub85c \ub610\ub294 \uc81c\uc5b4\ub41c \ubd84\uc704\uae30\ub97c \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<br>\uc911\uc131 \uc18c\uae08\uc695\uc744 \ud558\uc138\uc694<br>\ubd80\ud488\uc744 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8 \ud638\uc77c\ub85c \uac10\uc2f8\uc2ed\uc2dc\uc624.<br>\ud0c8\ud0c4 \ud604\uc0c1\uc774 \ubc1c\uc0dd\ud558\uba74 \ud574\ub2f9 \ud45c\uba74\uc744 \uae30\uacc4 \uac00\uacf5\uc774\ub098 \uc5f0\uc0ad\uc744 \ud1b5\ud574 \uc81c\uac70\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777338982702\"><strong class=\"schema-faq-question\">S7\uc774 \ub113\uc740 \ub2e8\uba74\uc5d0\uc11c \ub0ae\uc740 \uacbd\ub3c4\ub97c \ubcf4\uc774\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">\uc774\ub294 \ub300\uac1c \ub0c9\uac01 \uc18d\ub3c4\uac00 \ubd88\ucda9\ubd84\ud574\uc11c \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<br>\ub450\uaebc\uc6b4 \ub2e8\uba74\uc758 \uacbd\uc6b0 \uacf5\ub7ad\uc2dd \ub0c9\uac01 \uc18d\ub3c4\uac00 \ub108\ubb34 \ub290\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br>\uc911\uc2ec\ubd80\ub294 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub85c \uc644\uc804\ud788 \ubcc0\ud0dc\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<br>\ud574\uacb0\ucc45: 63.5mm \uc774\uc0c1\uc758 \ub2e8\uba74\uc5d0\ub294 \uc624\uc77c \ub2f4\uae08\uc9c8 \ub610\ub294 \ud50c\ub798\uc2dc \uc624\uc77c \ub2f4\uae08\uc9c8\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777339040357\"><strong class=\"schema-faq-question\">S7\uc740 \uace0\uc628 \ud658\uacbd\uc5d0 \uc801\ud569\ud55c\uac00\uc694?<\/strong> <p class=\"schema-faq-answer\">S7\uc740 \ube44\uad50\uc801 \ub192\uc740 \uc628\ub3c4\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc9c0\ub9cc, \uace0\uc628 \uc791\uc5c5 \uc804\uc6a9 \uac15\uc7ac\ub294 \uc544\ub2d9\ub2c8\ub2e4.<br>\uac04\ud5d0\uc801\uc774\uac70\ub098 \uc801\ub2f9\ud55c \uc5f4 \ub178\ucd9c\uc758 \uacbd\uc6b0: \ud5c8\uc6a9 \uac00\ub2a5<br>\uc9c0\uc18d\uc801\uc778 \uace0\uc628 \ud658\uacbd\uc5d0\uc11c\uc758 \uc0ac\uc6a9\uc5d0\ub294 H \uc2dc\ub9ac\uc988 \uac15\uc7ac\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \ub354 \uc88b\uc2b5\ub2c8\ub2e4.<br>\uc0ac\uc6a9 \uc911 \uc5f0\ud654\ub97c \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc5f4\ucc98\ub9ac \uc628\ub3c4\ub294 \ud56d\uc0c1 \uc0ac\uc6a9 \uc628\ub3c4\ubcf4\ub2e4 \ub192\uc544\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1777339041395\"><strong class=\"schema-faq-question\">S7 \uc5f4\ucc98\ub9ac\uc5d0\uc11c \uac00\uc7a5 \ud754\ud55c \uc2e4\uc218\ub294 \ubb34\uc5c7\uc778\uac00\uc694?<\/strong> <p class=\"schema-faq-answer\">\uac00\uc7a5 \ud754\ud55c \uc2e4\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<br>\ub2f4\uae08\uc9c8 \uc9c1\ud6c4 \ubc14\ub85c \ud15c\ud37c\ub9c1\uc744 \ud558\uc9c0 \uc54a\uc74c<br>\ub450\uaed8\uac00 \ub108\ubb34 \ub450\uaebc\uc6b4 \ubd80\ubd84\uc5d0\ub294 \uacf5\uae30 \ub2f4\uae08\uc9c8\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<br>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uacfc\uc815 \uc911 \uacfc\uc5f4<br>\uacbd\ud654 \uc804\uc5d0 \uc2a4\ud2b8\ub808\uc2a4 \ud574\uc18c\ub97c \ubb34\uc2dc\ud558\ub294 \uac83<br>\uc774 \uc911\uc5d0\uc11c\ub3c4 \ud15c\ud37c\ub9c1 \uc9c0\uc5f0\uacfc \uc798\ubabb\ub41c \ub2f4\uae08\uc9c8 \ubc29\ubc95\uc774 \uac00\uc7a5 \ub9ce\uc740 \uc2e4\ud328 \uc6d0\uc778\uc744 \ucc28\uc9c0\ud569\ub2c8\ub2e4.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>S7 Tool Steel Heat Treatment Guide S7 tool steel is typically heat-treated by preheating to 1200\u20131250\u00b0F (649\u2013677\u00b0C), austenitizing at about 1725\u00b0F (940\u00b0C), air quenching for sections up to about 2.5 in. (63.5 mm), and applying immediate double tempering. For most cold-work tooling, S7 is commonly tempered at 400\u2013500\u00b0F (204\u2013260\u00b0C), producing a typical working hardness of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15089,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","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":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","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 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":"[]"},"class_list":["post-11673","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>S7 Tool Steel Heat Treatment Guide: Temperature, Hardness &amp; Process<\/title>\n<meta name=\"description\" content=\"Aobo Steel explains S7 heat treatment with a clear hardness range, tempering chart, quenching method, soak time, and practical process notes for tool steel applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aobosteel.com\/ko\/s7-tool-steel-heat-treatment\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S7 Tool Steel Heat Treatment Guide: Temperature, Hardness &amp; Process\" \/>\n<meta property=\"og:description\" content=\"Aobo Steel explains S7 heat treatment with a clear hardness range, tempering chart, quenching method, soak time, and practical process notes for tool steel applications.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/s7-tool-steel-heat-treatment\/\" \/>\n<meta property=\"og:site_name\" content=\"AoboSteel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-25T07:35:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif\" \/>\n\t<meta property=\"og:image:width\" content=\"1254\" \/>\n\t<meta property=\"og:image:height\" content=\"1254\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data1\" content=\"11\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"S7 Tool Steel Heat Treatment Guide: Temperature, Hardness &amp; Process\",\"datePublished\":\"2025-12-23T04:52:18+00:00\",\"dateModified\":\"2026-06-25T07:35:03+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/\"},\"wordCount\":2136,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif\",\"inLanguage\":\"ko-KR\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/\",\"name\":\"S7 Tool Steel Heat Treatment Guide: Temperature, Hardness & Process\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif\",\"datePublished\":\"2025-12-23T04:52:18+00:00\",\"dateModified\":\"2026-06-25T07:35:03+00:00\",\"description\":\"Aobo Steel explains S7 heat treatment with a clear hardness range, tempering chart, quenching method, soak time, and practical process notes for tool steel applications.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#breadcrumb\"},\"mainEntity\":[{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338846448\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338878733\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338879534\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338880237\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338880956\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338918053\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338981206\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338981928\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338982702\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777339040357\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777339041395\"}],\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#primaryimage\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif\",\"width\":1254,\"height\":1254},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"S7 Tool Steel Heat Treatment Guide: Temperature, Hardness &amp; Process\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"name\":\"AoboSteel\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/aobosteel.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ko-KR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\",\"name\":\"AoboSteel\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/01\\\/cropped-aobo-steel-1.avif\",\"width\":1052,\"height\":592,\"caption\":\"AoboSteel\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\",\"name\":\"Evan\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g\",\"caption\":\"Evan\"},\"sameAs\":[\"http:\\\/\\\/www.aobosteel.com\",\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=61565368220197\",\"https:\\\/\\\/www.instagram.com\\\/aobosteel\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/aobosteel-evan\\\/\",\"https:\\\/\\\/x.com\\\/AobosteelEvan\",\"https:\\\/\\\/www.youtube.com\\\/@aobosteel\"],\"url\":\"https:\\\/\\\/aobosteel.com\\\/ko\\\/blog\\\/author\\\/admin\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338846448\",\"position\":1,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338846448\",\"name\":\"What is the recommended hardness for S7 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For most industrial applications, S7 tool steel is typically used at 56\u201358 HRC.<br>Lower hardness (48\u201352 HRC): better toughness, used for hot-work or impact-heavy tools<br>Higher hardness (above 58 HRC): improved wear resistance but increased brittleness<br>The correct hardness depends on whether failure is caused by wear or impact.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338878733\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338878733\",\"name\":\"Does S7 tool steel require oil quenching?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Not always.<br>S7 is an air-hardening steel, and air quenching is sufficient for sections up to about 63.5 mm (2.5 inches).<br>However:<br>For thicker sections, air cooling may not achieve full hardness<br>Oil quenching or flash oil quenching is required to ensure proper hardening<br>The quenching method should always be selected based on section size.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338879534\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338879534\",\"name\":\"Why does S7 require double tempering?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Double tempering is required to:<br>Reduce internal stress after quenching<br>Stabilize the martensitic structure<br>Improve toughness and reduce cracking risk<br>Single tempering is not sufficient for S7 and may lead to unstable performance in service.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338880237\",\"position\":4,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338880237\",\"name\":\"Can S7 be tempered below 400\u00b0F?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, but it is generally not recommended for standard industrial use.<br>Tempering at 345\u2013400\u00b0F can increase hardness<br>However, it significantly reduces toughness and increases cracking risk<br>This low-temperature tempering should be used only when maximum wear resistance is required, and impact loading is minimal.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338880956\",\"position\":5,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338880956\",\"name\":\"What happens if S7 is not tempered immediately after quenching?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Delayed tempering can lead to:<br>High residual stress<br>Increased risk of cracking<br>Reduced toughness<br>S7 should be tempered as soon as it cools to about 65\u00b0C (150\u00b0F) after quenching.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338918053\",\"position\":6,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338918053\",\"name\":\"What is the best tempering temperature for S7 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The most commonly used range is: 400\u2013500\u00b0F (204\u2013260\u00b0C) for cold-work applications<br>Typical practice: Around 450\u00b0F (230\u00b0C) gives a stable balance of hardness and toughness<br>For hot-work applications: Use 900\u20131000\u00b0F (482\u2013538\u00b0C)\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338981206\",\"position\":7,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338981206\",\"name\":\"Why does S7 lose hardness at high tempering temperatures?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"At higher tempering temperatures (above ~1000\u00b0F \\\/ 538\u00b0C):<br>Carbide coarsening increases<br>Martensite structure softens<br>Hardness drops more rapidly<br>This is why high-temperature tempering is used only when toughness and thermal stability are more important than hardness.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338981928\",\"position\":8,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338981928\",\"name\":\"How do you prevent decarburization during S7 heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Decarburization occurs when the surface loses carbon during heating. To prevent it:<br>Use a vacuum furnace or a controlled atmosphere<br>Use a neutral salt bath<br>Wrap parts in stainless steel foil<br>If decarburization occurs, the affected surface must be removed by machining or grinding.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338982702\",\"position\":9,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777338982702\",\"name\":\"Why does S7 show low hardness in large sections?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This is usually caused by an insufficient cooling rate.<br>Air cooling may be too slow for thick sections<br>The core does not fully transform to martensite<br>Solution: Use oil quenching or flash oil quenching for sections above 63.5 mm\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777339040357\",\"position\":10,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777339040357\",\"name\":\"Is S7 suitable for high-temperature applications?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"S7 can be used at moderately elevated temperatures, but it is not a dedicated hot-work steel.<br>For occasional or moderate heat exposure: acceptable<br>For continuous high-temperature service: better to use H-series steels<br>The tempering temperature should always be higher than the service temperature to avoid softening during use.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777339041395\",\"position\":11,\"url\":\"https:\\\/\\\/aobosteel.com\\\/s7-tool-steel-heat-treatment\\\/#faq-question-1777339041395\",\"name\":\"What is the biggest mistake in S7 heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The most common mistakes are:<br>Not tempering immediately after quenching<br>Using air quenching for sections that are too thick<br>Overheating during austenitizing<br>Ignoring stress relief before hardening<br>Among these, delayed tempering and incorrect quenching methods cause the most failures.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"S7 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc: \uc628\ub3c4, \uacbd\ub3c4 \ubc0f \uacf5\uc815","description":"\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 S7 \uc5f4\ucc98\ub9ac\uc5d0 \ub300\ud574 \uba85\ud655\ud55c \uacbd\ub3c4 \ubc94\uc704, \ud15c\ud37c\ub9c1 \ucc28\ud2b8, \ub2f4\uae08\uc9c8 \ubc29\ubc95, \uc720\uc9c0 \uc2dc\uac04 \ubc0f \uacf5\uad6c\uac15 \uc801\uc6a9\uc744 \uc704\ud55c \uc2e4\uc6a9\uc801\uc778 \uacf5\uc815 \ucc38\uace0 \uc0ac\ud56d\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/aobosteel.com\/ko\/s7-tool-steel-heat-treatment\/","og_locale":"ko_KR","og_type":"article","og_title":"S7 Tool Steel Heat Treatment Guide: Temperature, Hardness &amp; Process","og_description":"Aobo Steel explains S7 heat treatment with a clear hardness range, tempering chart, quenching method, soak time, and practical process notes for tool steel applications.","og_url":"https:\/\/aobosteel.com\/ko\/s7-tool-steel-heat-treatment\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-06-25T07:35:03+00:00","og_image":[{"width":1254,"height":1254,"url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"11\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"S7 Tool Steel Heat Treatment Guide: Temperature, Hardness &amp; Process","datePublished":"2025-12-23T04:52:18+00:00","dateModified":"2026-06-25T07:35:03+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/"},"wordCount":2136,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"image":{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif","inLanguage":"ko-KR"},{"@type":["WebPage","FAQPage"],"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/","url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/","name":"S7 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc: \uc628\ub3c4, \uacbd\ub3c4 \ubc0f \uacf5\uc815","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#primaryimage"},"image":{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif","datePublished":"2025-12-23T04:52:18+00:00","dateModified":"2026-06-25T07:35:03+00:00","description":"\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 S7 \uc5f4\ucc98\ub9ac\uc5d0 \ub300\ud574 \uba85\ud655\ud55c \uacbd\ub3c4 \ubc94\uc704, \ud15c\ud37c\ub9c1 \ucc28\ud2b8, \ub2f4\uae08\uc9c8 \ubc29\ubc95, \uc720\uc9c0 \uc2dc\uac04 \ubc0f \uacf5\uad6c\uac15 \uc801\uc6a9\uc744 \uc704\ud55c \uc2e4\uc6a9\uc801\uc778 \uacf5\uc815 \ucc38\uace0 \uc0ac\ud56d\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#breadcrumb"},"mainEntity":[{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338846448"},{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338878733"},{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338879534"},{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338880237"},{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338880956"},{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338918053"},{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338981206"},{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338981928"},{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338982702"},{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777339040357"},{"@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777339041395"}],"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/"]}]},{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#primaryimage","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif","width":1254,"height":1254},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"S7 Tool Steel Heat Treatment Guide: Temperature, Hardness &amp; Process"}]},{"@type":"WebSite","@id":"https:\/\/aobosteel.com\/#website","url":"https:\/\/aobosteel.com\/","name":"\uc544\uc624\ubcf4\uc2a4\ud2f8","description":"","publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/aobosteel.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ko-KR"},{"@type":"Organization","@id":"https:\/\/aobosteel.com\/#organization","name":"\uc544\uc624\ubcf4\uc2a4\ud2f8","url":"https:\/\/aobosteel.com\/","logo":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/cropped-aobo-steel-1.avif","width":1052,"height":592,"caption":"AoboSteel"},"image":{"@id":"https:\/\/aobosteel.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/"]},{"@type":"Person","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7","name":"\uc5d0\ubc18","image":{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/8e402f2e6f36093f0bf1855dbf79269cde23cd659c44eefdd7ecf7ff9c05786f?s=96&d=mm&r=g","caption":"Evan"},"sameAs":["http:\/\/www.aobosteel.com","https:\/\/www.facebook.com\/profile.php?id=61565368220197","https:\/\/www.instagram.com\/aobosteel\/","https:\/\/www.linkedin.com\/in\/aobosteel-evan\/","https:\/\/x.com\/AobosteelEvan","https:\/\/www.youtube.com\/@aobosteel"],"url":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338846448","position":1,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338846448","name":"S7 \uacf5\uad6c\uac15\uc5d0 \uad8c\uc7a5\ub418\ub294 \uacbd\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"For most industrial applications, S7 tool steel is typically used at 56\u201358 HRC.<br>Lower hardness (48\u201352 HRC): better toughness, used for hot-work or impact-heavy tools<br>Higher hardness (above 58 HRC): improved wear resistance but increased brittleness<br>The correct hardness depends on whether failure is caused by wear or impact.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338878733","position":2,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338878733","name":"S7 \uacf5\uad6c\uac15\uc740 \uc624\uc77c \ub2f4\uae08\uc9c8\uc774 \ud544\uc694\ud55c\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Not always.<br>S7 is an air-hardening steel, and air quenching is sufficient for sections up to about 63.5 mm (2.5 inches).<br>However:<br>For thicker sections, air cooling may not achieve full hardness<br>Oil quenching or flash oil quenching is required to ensure proper hardening<br>The quenching method should always be selected based on section size.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338879534","position":3,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338879534","name":"S7\uc5d0 \uc774\uc911 \uc5f4\ucc98\ub9ac\uac00 \ud544\uc694\ud55c \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Double tempering is required to:<br>Reduce internal stress after quenching<br>Stabilize the martensitic structure<br>Improve toughness and reduce cracking risk<br>Single tempering is not sufficient for S7 and may lead to unstable performance in service.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338880237","position":4,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338880237","name":"S7\uc740 400\u00b0F(\uc12d\uc528 \uc57d 204\ub3c4) \uc774\ud558\uc5d0\uc11c \uc5f4\ucc98\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, but it is generally not recommended for standard industrial use.<br>Tempering at 345\u2013400\u00b0F can increase hardness<br>However, it significantly reduces toughness and increases cracking risk<br>This low-temperature tempering should be used only when maximum wear resistance is required, and impact loading is minimal.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338880956","position":5,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338880956","name":"S7 \uac15\uc7ac\ub97c \ub2f4\uae08\uc9c8 \uc9c1\ud6c4 \ud15c\ud37c\ub9c1\ud558\uc9c0 \uc54a\uc73c\uba74 \uc5b4\ub5bb\uac8c \ub420\uae4c\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Delayed tempering can lead to:<br>High residual stress<br>Increased risk of cracking<br>Reduced toughness<br>S7 should be tempered as soon as it cools to about 65\u00b0C (150\u00b0F) after quenching.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338918053","position":6,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338918053","name":"S7 \uacf5\uad6c\uac15\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ud15c\ud37c\ub9c1 \uc628\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The most commonly used range is: 400\u2013500\u00b0F (204\u2013260\u00b0C) for cold-work applications<br>Typical practice: Around 450\u00b0F (230\u00b0C) gives a stable balance of hardness and toughness<br>For hot-work applications: Use 900\u20131000\u00b0F (482\u2013538\u00b0C)","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338981206","position":7,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338981206","name":"S7\uc740 \uc65c \uace0\uc628 \uc5f4\ucc98\ub9ac \uc628\ub3c4\uc5d0\uc11c \uacbd\ub3c4\uac00 \ub5a8\uc5b4\uc9c0\ub294\uac00?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"At higher tempering temperatures (above ~1000\u00b0F \/ 538\u00b0C):<br>Carbide coarsening increases<br>Martensite structure softens<br>Hardness drops more rapidly<br>This is why high-temperature tempering is used only when toughness and thermal stability are more important than hardness.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338981928","position":8,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338981928","name":"S7 \uc5f4\ucc98\ub9ac \uc911 \ud0c8\ud0c4\uc744 \ubc29\uc9c0\ud558\ub294 \ubc29\ubc95\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Decarburization occurs when the surface loses carbon during heating. To prevent it:<br>Use a vacuum furnace or a controlled atmosphere<br>Use a neutral salt bath<br>Wrap parts in stainless steel foil<br>If decarburization occurs, the affected surface must be removed by machining or grinding.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338982702","position":9,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777338982702","name":"S7\uc774 \ub113\uc740 \ub2e8\uba74\uc5d0\uc11c \ub0ae\uc740 \uacbd\ub3c4\ub97c \ubcf4\uc774\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"This is usually caused by an insufficient cooling rate.<br>Air cooling may be too slow for thick sections<br>The core does not fully transform to martensite<br>Solution: Use oil quenching or flash oil quenching for sections above 63.5 mm","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777339040357","position":10,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777339040357","name":"S7\uc740 \uace0\uc628 \ud658\uacbd\uc5d0 \uc801\ud569\ud55c\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"S7 can be used at moderately elevated temperatures, but it is not a dedicated hot-work steel.<br>For occasional or moderate heat exposure: acceptable<br>For continuous high-temperature service: better to use H-series steels<br>The tempering temperature should always be higher than the service temperature to avoid softening during use.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777339041395","position":11,"url":"https:\/\/aobosteel.com\/s7-tool-steel-heat-treatment\/#faq-question-1777339041395","name":"S7 \uc5f4\ucc98\ub9ac\uc5d0\uc11c \uac00\uc7a5 \ud754\ud55c \uc2e4\uc218\ub294 \ubb34\uc5c7\uc778\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The most common mistakes are:<br>Not tempering immediately after quenching<br>Using air quenching for sections that are too thick<br>Overheating during austenitizing<br>Ignoring stress relief before hardening<br>Among these, delayed tempering and incorrect quenching methods cause the most failures.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-300x300.avif",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-768x768.avif",768,768,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-12x12.avif",12,12,true]},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"S7 Tool Steel Heat Treatment Guide S7 tool steel is typically heat-treated by preheating to 1200\u20131250\u00b0F (649\u2013677\u00b0C), austenitizing at about 1725\u00b0F (940\u00b0C), air quenching for sections up to about 2.5 in. (63.5 mm), and applying immediate double tempering. For most cold-work tooling, S7 is commonly tempered at 400\u2013500\u00b0F (204\u2013260\u00b0C), producing a typical working hardness of&hellip;","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/S7-Tool-Steel-Heat-Treatment-Guide-ad-12x12.avif",12,12,true]},"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"S7 Tool Steel Heat Treatment Guide S7 tool steel is typically heat-treated by preheating to 1200\u20131250\u00b0F (649\u2013677\u00b0C), austenitizing at about 1725\u00b0F (940\u00b0C), air quenching for sections up to about 2.5 in. (63.5 mm), and applying immediate double tempering. For most cold-work tooling, S7 is commonly tempered at 400\u2013500\u00b0F (204\u2013260\u00b0C), producing a typical working hardness of&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11673","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/comments?post=11673"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11673\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media\/15089"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=11673"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}