{"id":11776,"date":"2025-12-29T19:03:08","date_gmt":"2025-12-29T11:03:08","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=11776"},"modified":"2026-06-27T20:00:22","modified_gmt":"2026-06-27T12:00:22","slug":"d2-tool-steel-heat-treatment-guide","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/d2-tool-steel-heat-treatment-guide\/","title":{"rendered":"D2 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc: \ud15c\ud37c\ub9c1 \ucc28\ud2b8, \uacbd\ub3c4 \ubc0f \uacf5\uc815"},"content":{"rendered":"<section class=\"aobo-d2-heat-treatment-page\">\n  <style>\n    .aobo-d2-heat-treatment-page {\n      --aobo-blue: #0c56d0;\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-d2-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-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-article {\n      max-width: 1180px;\n      margin: 0 auto;\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 26px;\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      width: 190px;\n      aspect-ratio: 1;\n      border: 1px solid var(--aobo-border);\n      border-radius: 18px;\n      overflow: hidden;\n      background: #f7fbff;\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 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-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 0 14px;\n      color: var(--aobo-muted);\n      font-style: italic;\n    }\n\n    .aobo-note-box p:last-child {\n      margin-bottom: 0;\n    }\n\n    .aobo-final-cta {\n      margin-top: 34px;\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      line-height: 1.25;\n      letter-spacing: 0;\n    }\n\n    .aobo-final-cta p {\n      margin: 0;\n      color: rgba(255, 255, 255, 0.92);\n      max-width: 760px;\n      font-size: 17px;\n    }\n\n    .aobo-final-cta .aobo-supply-actions {\n      margin-top: 0;\n    }\n\n    .aobo-final-cta .aobo-btn-primary {\n      background: #ffffff;\n      border-color: #ffffff;\n      color: var(--aobo-blue) !important;\n    }\n\n    .aobo-final-cta .aobo-btn-primary:hover {\n      background: #fff7ed;\n      color: #073b91 !important;\n    }\n\n    .aobo-final-cta .aobo-btn-secondary {\n      background: transparent;\n      border-color: rgba(255, 255, 255, 0.75);\n      color: #ffffff !important;\n    }\n\n    .aobo-final-cta .aobo-btn-secondary:hover {\n      background: rgba(255, 255, 255, 0.14);\n      border-color: #ffffff;\n      color: #ffffff !important;\n    }\n\n    .aobo-image-marker {\n      margin: 26px 0 10px;\n      padding: 18px 20px;\n      border: 1px dashed var(--aobo-border);\n      border-radius: 14px;\n      background: #fbfdff;\n      color: var(--aobo-muted);\n      font-weight: 700;\n    }\n\n    .aobo-figure {\n      margin: 26px auto 34px;\n      max-width: 860px;\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: 12px;\n      color: var(--aobo-muted);\n      font-size: 15px;\n      line-height: 1.6;\n    }\n\n    .aobo-figure figcaption strong {\n      display: block;\n      margin-bottom: 6px;\n      color: #082d6f;\n      font-size: 18px;\n      text-align: center;\n    }\n\n    .aobo-article a,\n    .aobo-hero a {\n      color: var(--aobo-blue);\n      font-weight: 700;\n      text-decoration: none;\n    }\n\n    .aobo-article a:hover,\n    .aobo-hero a:hover {\n      color: var(--aobo-orange);\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-content {\n        padding: 0;\n      }\n\n      .aobo-final-cta {\n        padding: 26px 22px;\n      }\n\n      .aobo-final-cta .aobo-supply-actions {\n        width: 100%;\n      }\n\n      .aobo-final-cta .aobo-btn {\n        width: 100%;\n      }\n    }\n  <\/style>\n\n  <div class=\"aobo-wrap\">\n    <header class=\"aobo-hero\">\n      <h1>D2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/h1>\n      <p><a href=\"https:\/\/aobosteel.com\/ko\/d2-steel-properties\/\">D2 \uacf5\uad6c\uac15<\/a> \uc77c\ubc18\uc801\uc73c\ub85c 649~677\u00b0C(1200~1250\u00b0F)\ub85c \uc608\uc5f4\ud55c \ud6c4, 980~1025\u00b0C(1795~1875\u00b0F)\uc5d0\uc11c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\ud558\uace0, \ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub77c \uacf5\uae30, \uac00\uc2a4, \uc624\uc77c \ub610\ub294 \uc5fc\uc695\uc73c\ub85c \ub2f4\uae08\uc9c8\ud55c \ub2e4\uc74c, 480~515\u00b0C(900~960\u00b0F)\uc5d0\uc11c \uc774\uc911 \ud15c\ud37c\ub9c1\uc744 \ud558\ub294 \uc5f4\ucc98\ub9ac\ub97c \uac70\uce69\ub2c8\ub2e4. \ub9ce\uc740 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c \ubd84\uc57c\uc5d0\uc11c \uc774 \uacf5\uc815\uc740 \uc57d 58~60 HRC\uc758 \uacbd\ub3c4\ub97c \uc5bb\ub294 \ub3d9\uc2dc\uc5d0 \uce58\uc218 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8, \uade0\uc5f4 \ubc0f \ubcc0\ud615\uc758 \uc704\ud5d8\uc744 \uc904\uc785\ub2c8\ub2e4.<\/p>\n      <p>D2\ub294 \uace0\ud0c4\uc18c, \uace0\ud06c\ub86c \uacf5\uae30\uacbd\ud654 \uacf5\uad6c\uac15\uc774\ubbc0\ub85c \uc5f4\ucc98\ub9ac \uc2dc \uc628\ub3c4, \uc720\uc9c0 \uc2dc\uac04, \ub2e8\uba74 \ud06c\uae30, \ub2f4\uae08\uc9c8 \ubc29\ubc95 \ubc0f \ud15c\ud37c\ub9c1 \uc804\ub7b5\uc744 \uc815\ubc00\ud558\uac8c \uc81c\uc5b4\ud574\uc57c \ud569\ub2c8\ub2e4. \uc791\uc740 \ud380\uce58, \ud070 \ub2e4\uc774 \ube14\ub85d, \uc815\ubc00 \uac8c\uc774\uc9c0\ub97c \ubaa8\ub450 \ub3d9\uc77c\ud55c \uacf5\uc815\uc73c\ub85c \uc0ac\uc6a9\ud560 \uc218\ub294 \uc5c6\uc2b5\ub2c8\ub2e4. \uc774 \uac00\uc774\ub4dc\uc5d0\uc11c\ub294 \uc608\uc5f4, \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654, \ub2f4\uae08\uc9c8, \uc120\ud0dd\uc801 \uadf9\uc800\uc628 \ucc98\ub9ac, \ud15c\ud37c\ub9c1, \uacbd\ub3c4 \uc120\ud0dd, \ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub978 \uc704\ud5d8, \uc77c\ubc18\uc801\uc778 \uc5f4\ucc98\ub9ac \uc2e4\ud328 \uc0ac\ub840\ub97c \ud3ec\ud568\ud55c D2\uc758 \uc2e4\uc81c \uc5f4\ucc98\ub9ac \uc21c\uc11c\ub97c \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n    <\/header>\n\n    <main class=\"aobo-article\">\n      <h2>D2 \uc5f4\ucc98\ub9ac \uac04\ud3b8 \ub9e4\uac1c\ubcc0\uc218\ud45c<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\ub2e8\uacc4<\/th><th>\uad8c\uc7a5 \ubc94\uc704<\/th><th>\ubaa9\uc801<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uc608\uc5f4<\/td><td>1200\u20131250\u00b0F \/ 649\u2013677\u00b0C<\/td><td>\uc5f4\ucda9\uaca9 \ubc0f \uade0\uc5f4 \uc704\ud5d8 \uac10\uc18c<\/td><\/tr>\n            <tr><td>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654<\/td><td>1795\u20131875\u00b0F \/ 980\u20131025\u00b0C<\/td><td>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \ud615\uc131\ud558\uace0 \ud569\uae08 \ud0c4\ud654\ubb3c\uc744 \uc6a9\ud574\uc2dc\ud0b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ub2f4\uae08\uc9c8<\/td><td>\ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub77c \uacf5\uae30, \uac00\uc2a4, \uc624\uc77c \ub610\ub294 \uc5fc\uc695\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/td><td>\uc81c\uc5b4\ub41c \ubcc0\ud615\uc744 \ud1b5\ud574 \uac15\ucca0\uc744 \uacbd\ud654\uc2dc\ud0a4\uc2ed\uc2dc\uc624.<\/td><\/tr>\n            <tr><td>\uc120\ud0dd \uc0ac\ud56d: \uadf9\uc800\uc628 \ucc98\ub9ac<\/td><td>\ucd5c\uc800 -196\u00b0C\uae4c\uc9c0<\/td><td>\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \uac10\uc18c\uc2dc\ud0a4\uace0 \uce58\uc218 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ub2f4\uae08\uc9c8<\/td><td>900\u2013960\u00b0F \/ 480\u2013515\u00b0C, \uc774\uc911 \ud15c\ud37c\ub9c1<\/td><td>\uc548\uc815\uc131\uc744 \uac1c\uc120\ud558\uc5ec \uc57d 58~60 HRC\uc5d0 \ub3c4\ub2ec\ud569\ub2c8\ub2e4.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h2>D2 \uc18c\uc7ac\uc758 \uc5f4\ucc98\ub9ac \ubc29\ubc95 - \ub2e8\uacc4\ubcc4 \uc548\ub0b4<\/h2>\n      <p>D2 \uc5f4\ucc98\ub9ac\ub294 \uc608\uc5f4, \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654, \ub2f4\uae08\uc9c8, \uc120\ud0dd\uc801 \uadf9\uc800\uc628 \ucc98\ub9ac \ubc0f \ud15c\ud37c\ub9c1\uc758 \ub2e4\uc12f \uac00\uc9c0 \uc8fc\uc694 \ub2e8\uacc4\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. \uac01 \ub2e8\uacc4\ub294 \ucd5c\uc885 \uacbd\ub3c4, \uce58\uc218 \ubcc0\ud654, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ubc0f \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4.<\/p>\n      <p>\uc544\ub798 \ub9e4\uac1c\ubcc0\uc218\ub294 \uc2e4\uc81c \ucc38\uace0 \ubc94\uc704\uc785\ub2c8\ub2e4. \ucd5c\uc885 \uc5f4\ucc98\ub9ac \uc124\uc815\uc740 \uc6a9\uad11\ub85c \uc131\ub2a5, \ub2e8\uba74 \ub450\uaed8, \ubd80\ud488 \ud615\uc0c1 \ubc0f \uc694\uad6c\ub418\ub294 \uac00\uacf5 \uacbd\ub3c4\uc5d0 \ub530\ub77c \uc870\uc815\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n      <h3>1\ub2e8\uacc4: D2 \uacf5\uad6c\uac15 \uc608\uc5f4<\/h3>\n      <p>\uc608\uc5f4\uc740 D2\ub97c \uacbd\ud654 \uc628\ub3c4\uae4c\uc9c0 \uac00\uc5f4\ud560 \ub54c \ubc1c\uc0dd\ud558\ub294 \uc5f4 \ucda9\uaca9\uc744 \uc904\uc5ec\uc90d\ub2c8\ub2e4. \uc774\ub294 D2\uc758 \uc5f4\uc804\ub3c4\uc728\uc774 \ube44\uad50\uc801 \ub0ae\uae30 \ub54c\ubb38\uc5d0 \uc911\uc694\ud569\ub2c8\ub2e4. \ud45c\uba74\uc774 \uc911\uc2ec\ubd80\ubcf4\ub2e4 \ud6e8\uc52c \ube60\ub974\uac8c \uac00\uc5f4\ub418\uba74 \ub0b4\ubd80 \uc751\ub825\uc73c\ub85c \uc778\ud574 \ubcc0\ud615\uc774\ub098 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>\uc77c\ubc18\uc801\uc778 \uc608\uc5f4 \uc628\ub3c4\ub294 1200~1250\u00b0F(649~677\u00b0C)\uc785\ub2c8\ub2e4. \ubd80\ud488\uc758 \ub2e8\uba74\uc774 \uade0\uc77c\ud558\uac8c \uac00\uc5f4\ub420 \ub54c\uae4c\uc9c0 \uc720\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4. \ub450\uaebc\uc6b4 \ubd80\ud488\uc740 \uc587\uc740 \ubd80\ud488\ubcf4\ub2e4 \uade0\uc77c \uac00\uc5f4 \uc2dc\uac04\uc774 \ub354 \uc624\ub798 \uac78\ub9bd\ub2c8\ub2e4.<\/p>\n      <p>D2\ub294 \uc9c4\uacf5\ub85c, \uc81c\uc5b4 \ubd84\uc704\uae30\ub85c, \uc911\uc131 \uc5fc\uc695 \ub610\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ud638\uc77c \uc544\ub798\uc5d0\uc11c \uac00\uc5f4\ud574\uc57c \ud569\ub2c8\ub2e4. \ud45c\uba74 \ubcf4\ud638 \ucc98\ub9ac\uac00 \ub418\uc5b4 \uc788\uc9c0 \uc54a\uc73c\uba74 \uc0b0\ud654 \ubc0f \ud0c8\ud0c4\uc73c\ub85c \uc778\ud574 \uacbd\ud654 \ud6c4 \ud45c\uba74 \uacbd\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n      <h3>2\ub2e8\uacc4: D2\uac15\uc758 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ubc0f \uacbd\ud654<\/h3>\n      <p>\uc608\uc5f4 \ud6c4, D2\ub294 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uae4c\uc9c0 \uac00\uc5f4\ub429\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \uc628\ub3c4 \ubc94\uc704\ub294 1795~1875\u00b0F \/ 980~1025\u00b0C\uc774\uba70, 1850\u00b0F \/ 1010\u00b0C\uac00 \uc2e4\uc81c\uc801\uc778 \uae30\uc900 \uc628\ub3c4\ub85c \uc790\uc8fc \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n      <p>\uc804\uccb4 \ub2e8\uba74\uc774 \ubaa9\ud45c \uc628\ub3c4\uc5d0 \ub3c4\ub2ec\ud55c \ud6c4\uc5d0\uc57c \uc720\uc9c0 \uc2dc\uac04\uc744 \uc2dc\uc791\ud574\uc57c \ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ub450\uaed8 1\uc778\uce58\ub2f9 45~60\ubd84\uc744 \uae30\uc900\uc73c\ub85c \ud558\uba70, \uc774\ub294 \uc6a9\uad11\ub85c \uc801\uc7ac\ub7c9, \ub2e8\uba74\uc801 \ubc0f \uacf5\uad6c \ud615\uc0c1\uc5d0 \ub530\ub77c \uc870\uc815\ub429\ub2c8\ub2e4.<\/p>\n      <p>\uc628\ub3c4\uac00 \ub108\ubb34 \ub0ae\uac70\ub098 \uc720\uc9c0 \uc2dc\uac04\uc774 \ub108\ubb34 \uc9e7\uc73c\uba74 \ud0c4\ud654\ubb3c\uc774 \ucda9\ubd84\ud788 \uc6a9\ud574\ub418\uc9c0 \uc54a\uc544 \uacbd\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc18\ub300\ub85c \uc628\ub3c4\uac00 \ub108\ubb34 \ub192\uac70\ub098 \uc720\uc9c0 \uc2dc\uac04\uc774 \ub108\ubb34 \uae38\uba74 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uac00 \uc99d\uac00\ud558\uace0 \uacb0\uc815\ub9bd\uc774 \uc870\ub300\ud654\ub418\uba70 \ucde8\uc131\uc774 \ucee4\uc9c0\uace0 \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc774 \ub192\uc544\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>980\u00b0C, 1010\u00b0C, 1025\u00b0C\uc5d0\uc11c\uc758 \uc628\ub3c4 \uc120\ud0dd\uc774 \ud0c4\ud654\ubb3c \uc6a9\ud574, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8, \uacbd\ub3c4\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5 \ub4f1 \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \ub2e4\uc74c\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. <a href=\"https:\/\/aobosteel.com\/ko\/d2-austenitizing-temperature\/\">D2 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4<\/a> \uac00\uc774\ub4dc.<\/p>\n\n      <h3>3\ub2e8\uacc4: D2 \uacf5\uad6c\uac15 \ub2f4\uae08\uc9c8<\/h3>\n      <p>D2\ub294 \uacf5\uae30 \uacbd\ud654\ud615 \uacf5\uad6c\uac15\uc785\ub2c8\ub2e4. \uae09\uaca9\ud55c \uc561\uccb4 \ub2f4\uae08\uc9c8\uc5d0 \ube44\ud574 \ubcc0\ud615\uc744 \uc904\uc77c \uc218 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc81c\uc5b4\ub41c \uacf5\uae30 \ub0c9\uac01 \ub610\ub294 \uac00\uc2a4 \ub2f4\uae08\uc9c8\uc774 \uc885\uc885 \uc120\ud638\ub429\ub2c8\ub2e4.<\/p>\n      <p>\ub2e8\uba74\uc774 \ud06c\uac70\ub098 \ud2b9\uc218\ud55c \ud615\uc0c1\uc758 \uacbd\uc6b0 \uc5fc\uc695 \ub2f4\uae08\uc9c8\uc774\ub098 \uc624\uc77c \ub2f4\uae08\uc9c8\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubc29\ubc95\uc740 \ub0c9\uac01 \uc18d\ub3c4\ub97c \ub192\uc77c \uc218 \uc788\uc9c0\ub9cc, \uc5f4 \uc751\ub825\uacfc \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\ub3c4 \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \ubc29\ubc95\uc740 \uc2b5\uad00\uc801\uc778 \ubc29\uc2dd\uc774 \uc544\ub2c8\ub77c \ub2e8\uba74\uc758 \ud06c\uae30\uc640 \uc694\uad6c\ub418\ub294 \uacbd\ub3c4\ub97c \uae30\uc900\uc73c\ub85c \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <p>\ub2f4\uae08\uc9c8 \ud6c4, \uacf5\uad6c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud15c\ud37c\ub9c1 \uc804\uc5d0 \uc57d 50~66\u00b0C(120~150\u00b0F)\uae4c\uc9c0 \ub0c9\uac01\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc774 \ub2e8\uacc4\uc5d0\uc11c \uac15\ucca0\uc740 \ub2e8\ub2e8\ud558\uc9c0\ub9cc \ub192\uc740 \uc751\ub825 \uc0c1\ud0dc\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ud15c\ud37c\ub9c1\uc740 \uc989\uc2dc \uc2dc\uc791\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <figure class=\"aobo-figure\">\n        <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/12\/D2-Tool-Steel-Isothermal-Transformation-TTT-Diagram-showing-Pearlite-and-Bainite-Noses.avif\" alt=\"D2 \uacf5\uad6c\uac15 TTT \ub3c4\uba74\" loading=\"lazy\">\n        <figcaption>\n          <strong>D2 \uacf5\uad6c\uac15 TTT \ub3c4\uba74<\/strong>\n          \uc774 \ub3c4\ud45c\ub294 D2 \uacf5\uad6c\uac15\uc744 980\u00b0C(1800\u00b0F)\uc5d0\uc11c 1\uc2dc\uac04 \ub3d9\uc548 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \ucc98\ub9ac\ud588\uc744 \ub54c\uc758 \ub4f1\uc628 \ubcc0\ud0dc \uac70\ub3d9\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc774 \ub3c4\ud45c\ub294 D2 \uacf5\uad6c\uac15\uc774 \uc81c\uc5b4\ub41c \uacf5\uae30 \ub610\ub294 \uac00\uc2a4 \ub0c9\uac01 \uc870\uac74\uc5d0\uc11c \uacbd\ud654\ub420 \uc218 \uc788\ub294 \uc774\uc720\ub97c \ubcf4\uc5ec\uc90c\uc73c\ub85c\uc368 \ub2f4\uae08\uc9c8\uc5d0 \ub300\ud55c \ub17c\uc758\ub97c \ub4b7\ubc1b\uce68\ud558\uba70, \ub2e8\uba74 \ud06c\uae30\uc640 \ub0c9\uac01 \uc18d\ub3c4\uac00 \ucd5c\uc885 \uacbd\ub3c4 \ubc0f \uce58\uc218 \uc548\uc815\uc131\uc5d0 \uc5ec\uc804\ud788 \uc601\ud5a5\uc744 \ubbf8\uce5c\ub2e4\ub294 \uc810\uc744 \uc2dc\uc0ac\ud569\ub2c8\ub2e4.<br>\n          \ucd9c\ucc98: \uacf5\uad6c\uac15, George Adam Roberts, George Krauss, Richard Kennedy, 206\ucabd, \uadf8\ub9bc 12-3.\n        <\/figcaption>\n      <\/figure>\n\n      <h3>4\ub2e8\uacc4: D2 \uacf5\uad6c\uac15\uc5d0 \ub300\ud55c \uc120\ud0dd\uc801 \uadf9\uc800\uc628 \ucc98\ub9ac<\/h3>\n      <p>\uadf9\uc800\uc628 \ucc98\ub9ac\ub294 \uc120\ud0dd \uc0ac\ud56d\uc785\ub2c8\ub2e4. \uc8fc\ub85c \uce58\uc218 \uc548\uc815\uc131, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4 \ubc0f \ub9c8\ubaa8 \uade0\uc77c\uc131\uc774 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \ubd80\ud488\ubcf4\ub2e4\ub294 \uc815\ubc00 \uae08\ud615, \ud380\uce58, \uac8c\uc774\uc9c0, \uc2ac\ub9ac\ud305 \uacf5\uad6c \ubc0f \ub9c8\ubaa8\uac00 \uc2ec\ud55c \uacf5\uad6c\uc5d0 \ub354 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n      <p>\uc2ec\uce35 \uadf9\uc800\uc628 \ucc98\ub9ac\ub294 D2\ub97c \uc57d -196\u00b0C\uae4c\uc9c0 \ub0c9\uac01\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uacbd\ud654\ub41c D2\ub294 \uac11\uc791\uc2a4\ub7fd\uace0 \uc81c\uc5b4\ub418\uc9c0 \uc54a\uc740 \ub0c9\uac01\uc73c\ub85c \ucda9\uaca9\uc744 \ubc1b\uc544\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \uae09\uaca9\ud55c \uc628\ub3c4 \ubcc0\ud654\ub294 \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc744 \uc99d\uac00\uc2dc\ud0ac \uc218 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n      <p>\uadf9\uc800\uc628 \ucc98\ub9ac\ub294 \uc5f4\ucc98\ub9ac \ubc29\ubc95\uc5d0 \ub530\ub77c \ub2f4\uae08\uc9c8 \ud6c4 \ud15c\ud37c\ub9c1 \uc804\uc5d0 \ub610\ub294 \ud15c\ud37c\ub9c1 \uc8fc\uae30 \uc0ac\uc774\uc5d0 \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \ud6c4\uc5d0 \uadf9\uc800\uc628 \ucc98\ub9ac\ub97c \ud558\ub294 \uacbd\uc6b0, \ubd80\ud488\uc774 \uc2e4\uc628\uc73c\ub85c \ub3cc\uc544\uc628 \ud6c4 \ubc18\ub4dc\uc2dc \ud15c\ud37c\ub9c1\uc744 \ud574\uc57c \ud569\ub2c8\ub2e4. \uc0c8\ub85c \ubcc0\ud0dc\ub41c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub294 \uc751\ub825\uc774 \ub9e4\uc6b0 \ub192\uae30 \ub54c\ubb38\uc5d0 \ud15c\ud37c\ub9c1\uc774 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n\n      <h3>5\ub2e8\uacc4: D2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac<\/h3>\n      <p>D2 \uacbd\ud654 \ud6c4\uc5d0\ub294 \ud15c\ud37c\ub9c1\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \ub2f4\uae08\uc9c8\ub41c D2\ub294 \ub2e8\ub2e8\ud558\uc9c0\ub9cc \ucde8\uc131\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ud15c\ud37c\ub9c1\uc740 \ub0b4\ubd80 \uc751\ub825\uc744 \uac10\uc18c\uc2dc\ud0a4\uace0, \uc778\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uba70, \ubbf8\uc138 \uad6c\uc870\ub97c \uc548\uc815\ud654\ud558\uace0, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \uc81c\uc5b4\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n      <p>D2\uac15\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc774\uc911 \ud15c\ud37c\ub9c1\uc774 \uad8c\uc7a5\ub429\ub2c8\ub2e4. \uc0bc\uc911 \ud15c\ud37c\ub9c1\uc740 \uc911\uc694 \uacf5\uad6c \ub610\ub294 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4\uac00 \ud2b9\ud788 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud15c\ud37c\ub9c1 \uc8fc\uae30 \uc0ac\uc774\uc5d0\ub294 \ubd80\ud488\uc744 \uc2e4\uc628\uc73c\ub85c \ub0c9\uac01\uc2dc\ucf1c\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\ud15c\ud37c\ub9c1 \uc804\ub7b5<\/th><th>\uc77c\ubc18\uc801\uc778 \uc628\ub3c4<\/th><th>\uc608\uc0c1 \uacb0\uacfc<\/th><th>\ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\uc6b0\uc5d0 \uac00\uc7a5 \uc801\ud569\ud569\ub2c8\ub2e4:<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uc800\uc628 \ud15c\ud37c\ub9c1<\/td><td>\uc57d 400\u00b0F \/ 205\u00b0C<\/td><td>\uc57d 60~62 HRC<\/td><td>\ucd5c\ub300 \uacbd\ub3c4\uac00 \uce58\uc218 \uc548\uc815\uc131\ubcf4\ub2e4 \ub354 \uc911\uc694\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uace0\uc628 \uc774\uc911 \ud15c\ud37c\ub9c1<\/td><td>900\u2013960\u00b0F \/ 480\u2013515\u00b0C<\/td><td>\uc57d 58~60 HRC<\/td><td>\uce58\uc218 \uc548\uc815\uc131, \uc751\ub825 \uc644\ud654 \ubc0f \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4\ub294 \uc911\uc694\ud569\ub2c8\ub2e4.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\ub300\ubd80\ubd84\uc758 \uc0b0\uc5c5\uc6a9 D2 \uacf5\uad6c\uc758 \uacbd\uc6b0 900~960\u00b0F \/ 480~515\u00b0C\uc758 \uace0\uc628 \uc774\uc911 \ud15c\ud37c\ub9c1\uc744 \ud1b5\ud574 \uacbd\ub3c4, \ub0b4\ub9c8\ubaa8\uc131, \uc548\uc815\uc131 \ubc0f \uade0\uc5f4 \uc800\ud56d\uc131 \uac04\uc758 \ub354 \uc548\uc804\ud55c \uade0\ud615\uc744 \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n      <h2>D2 \ud15c\ud37c\ub9c1 \uc628\ub3c4 \ubc0f \uacbd\ub3c4\ud45c<\/h2>\n      <p>\ucd5c\uc885 \uacbd\ub3c4\ub294 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4, \ub2f4\uae08\uc9c8 \ubc29\ubc95, \ud15c\ud37c\ub9c1 \uc628\ub3c4, \ud15c\ud37c\ub9c1 \ud69f\uc218, \ub2e8\uba74 \ud06c\uae30 \ubc0f \uadf9\uc800\uc628 \ucc98\ub9ac \uc0ac\uc6a9 \uc5ec\ubd80\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\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>\uc77c\ubc18\uc801\uc778 \uc870\uac74<\/th><th>\uc608\uc0c1 \uacbd\ub3c4<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uac08\uc99d\uc774 \ud574\uc18c\ub41c \uac83\ucc98\ub7fc<\/td><td>\ud45c\uc900 \uacbd\ud654<\/td><td>\uc57d 64 HRC<\/td><\/tr>\n            <tr><td>300\u00b0F \/ 150\u00b0C<\/td><td>\uc800\uc628 \ud15c\ud37c\ub9c1<\/td><td>\uc57d 62 HRC<\/td><\/tr>\n            <tr><td>400\u00b0F \/ 205\u00b0C<\/td><td>\uc800\uc628 \ud15c\ud37c\ub9c1<\/td><td>\uc57d 61\uba85\uc758 HRC<\/td><\/tr>\n            <tr><td>500\u00b0F \/ 260\u00b0C<\/td><td>\ud15c\ud37c\ub4dc<\/td><td>\uc57d 60 HRC<\/td><\/tr>\n            <tr><td>600\u00b0F \/ 315\u00b0C<\/td><td>\ud15c\ud37c\ub4dc<\/td><td>\uc57d 59 HRC<\/td><\/tr>\n            <tr><td>700\u00b0F \/ 370\u00b0C<\/td><td>\ud15c\ud37c\ub4dc<\/td><td>\uc57d 58 HRC<\/td><\/tr>\n            <tr><td>800\u00b0F \/ 425\u00b0C<\/td><td>\ud15c\ud37c\ub4dc<\/td><td>\uc57d 58 HRC<\/td><\/tr>\n            <tr><td>900\u00b0F \/ 480\u00b0C<\/td><td>\uace0\uc628 \ud15c\ud37c\ub9c1<\/td><td>\uc57d 58 HRC<\/td><\/tr>\n            <tr><td>\ud654\uc528 960\ub3c4 \/ \uc12d\uc528 515\ub3c4<\/td><td>\uace0\uc628 \ud15c\ud37c\ub9c1<\/td><td>\uc9c4\ub8cc \ubc29\uc2dd\uc5d0 \ub530\ub77c \uc57d 58~60 HRC \uc815\ub3c4\uc785\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>1000\u00b0F \/ 540\u00b0C<\/td><td>\uace0\uc628 \ud15c\ud37c\ub9c1<\/td><td>\uc57d 55 HRC<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\uc774 \ucc28\ud2b8\ub294 \ucc38\uace0\uc6a9\uc774\uba70, \uc815\ud655\ud55c \uacb0\uacfc\ub97c \ubcf4\uc7a5\ud558\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uc2e4\uc81c \uacbd\ub3c4\ub294 \uc6a9\uad11\ub85c \uc81c\uc5b4, \ub0c9\uac01 \uc18d\ub3c4, \ub2e8\uba74 \ub450\uaed8 \ubc0f \uc6d0\uc7ac\ub8cc \uc0c1\ud0dc\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n      <h2>D2 \uacf5\uad6c\uac15\uc758 \uc8fc\uc694 \ud15c\ud37c\ub9c1 \uc804\ub7b5<\/h2>\n      <p>\ud15c\ud37c\ub9c1 \uc628\ub3c4\ub294 \uacf5\uad6c\uc758 \uace0\uc7a5 \uc704\ud5d8\ub3c4\ub97c \uace0\ub824\ud558\uc5ec \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4. \uc8fc\uc694 \uace0\uc7a5 \uc704\ud5d8\uc774 \ub9c8\ubaa8\uc774\uace0 \uacf5\uad6c\uc5d0 \uac00\ud574\uc9c0\ub294 \ucda9\uaca9 \ud558\uc911\uc774 \uc81c\ud55c\uc801\uc774\ub77c\uba74 \uc800\uc628 \ud15c\ud37c\ub9c1\uc744 \ud1b5\ud574 \ub192\uc740 \uacbd\ub3c4\ub97c \uc720\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc8fc\uc694 \uace0\uc7a5 \uc704\ud5d8\uc774 \uade0\uc5f4, \ud06c\uae30 \ubcc0\ud654, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ub610\ub294 \uc0dd\uc0b0 \uc131\ub2a5 \uc800\ud558\ub77c\uba74 \uace0\uc628 \uc774\uc911 \ud15c\ud37c\ub9c1\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \ub354 \uc548\uc804\ud569\ub2c8\ub2e4.<\/p>\n      <p>\uc57d 205\u00b0C(400\u00b0F)\uc758 \uc800\uc628 \ud15c\ud37c\ub9c1\uc744 \ud1b5\ud574 \uc57d 60~62 HRC\uc758 \uacbd\ub3c4\ub97c \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \ucd5c\ub300 \uacbd\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc694\uad6c\ub418\ub294 \uacbd\uc6b0\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4. \ub2e4\ub9cc, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4 \ubc0f \uce58\uc218 \uc548\uc815\uc131\uc774 \uace0\uc628 \uc774\uc911 \ud15c\ud37c\ub9c1\uc5d0 \ube44\ud574 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\ub2e4\ub294 \ud55c\uacc4\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>900~960\u00b0F(480~515\u00b0C)\uc758 \uace0\uc628\uc5d0\uc11c \uc774\uc911 \ud15c\ud37c\ub9c1\uc744 \ud558\uba74 \uc77c\ubc18\uc801\uc73c\ub85c 58~60 HRC\uc758 \uacbd\ub3c4\ub97c \uc5bb\uc2b5\ub2c8\ub2e4. \uacbd\ub3c4\uac00 \ub354 \ub0ae\uc744 \uc218\ub3c4 \uc788\uc9c0\ub9cc, \uacf5\uad6c\ub294 \uc885\uc885 \uc751\ub825 \uc644\ud654, \uc548\uc815\uc131 \ubc0f \uc0ac\uc6a9 \uc2e0\ub8b0\uc131\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4. \ub9ce\uc740 \uae08\ud615, \ud380\uce58, \ucee4\ud130 \ubc0f \uc815\ubc00 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc758 \uacbd\uc6b0, \uac00\ub2a5\ud55c \ud55c \uac00\uc7a5 \ub192\uc740 HRC\ub97c \ucd94\uad6c\ud558\ub294 \uac83\ubcf4\ub2e4 \uc774 \uc791\uc5c5 \uacbd\ub3c4 \ubc94\uc704\uac00 \ub354 \uc2e4\uc6a9\uc801\uc785\ub2c8\ub2e4.<\/p>\n      <p>D2 \uacf5\uad6c\uc5d0 \ucd94\ud6c4 \uc9c8\ud654 \ucc98\ub9ac, PVD \ucf54\ud305 \ub610\ub294 \uae30\ud0c0 \uace0\uc628 \ud45c\uba74 \ucc98\ub9ac\ub97c \ud560 \uacbd\uc6b0, \ucf54\ud305 \uc628\ub3c4\ub97c \uace0\ub824\ud558\uc5ec \ud15c\ud37c\ub9c1 \uc628\ub3c4\ub97c \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4. \ucf54\uc5b4 \uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ucd94\ud6c4 \ucf54\ud305 \uc628\ub3c4\ubcf4\ub2e4 \ub192\uc740 \uc628\ub3c4\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud558\uc5ec \uc608\uc0c1\uce58 \ubabb\ud55c \uacbd\ub3c4 \uc190\uc2e4\uc744 \ubc29\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n      <h2>\ub2e4\uc591\ud55c D2 \ud234\ub9c1 \uc801\uc6a9 \ubd84\uc57c\uc5d0 \ub300\ud55c \ubaa9\ud45c \uacbd\ub3c4<\/h2>\n      <p>D2 \uacf5\uad6c\uac15\uc758 \uc2e4\uc81c \uc0ac\uc6a9 \uacbd\ub3c4\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 56HRC\uc5d0\uc11c 62HRC \uc0ac\uc774\ub85c \uc120\ud0dd\ub429\ub2c8\ub2e4. \uacbd\ub3c4\uac00 \ub192\uc744\uc218\ub85d \ub0b4\ub9c8\ubaa8\uc131\uc740 \ud5a5\uc0c1\ub418\uc9c0\ub9cc, \ud30c\uc190 \ubc0f \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\ub3c4 \uc99d\uac00\ud569\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>\uc77c\ubc18\uc801\uc778 \ud45c\uc801 \uacbd\ub3c4<\/th><th>\uc120\ud0dd \ub17c\ub9ac<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uc7a5\uae30 \uc0dd\uc0b0 \ube14\ub7ad\ud0b9 \ub2e4\uc774<\/td><td>58\u201362 HRC<\/td><td>\uade0\ud615 \ubaa8\uc11c\ub9ac \ub9c8\ubaa8 \ubc0f \uade0\uc5f4 \uc704\ud5d8<\/td><\/tr>\n            <tr><td>\ube14\ub7ad\ud0b9 \ud380\uce58<\/td><td>58\u201362 HRC<\/td><td>\ub0b4\ub9c8\ubaa8\uc131\uc744 \uc720\uc9c0\ud558\uba74\uc11c \ud30c\uc190 \uc704\ud5d8\uc744 \uc904\uc774\uc138\uc694.<\/td><\/tr>\n            <tr><td>\uc131\ud615 \ubc0f \ubca4\ub529 \ub2e4\uc774<\/td><td>58\u201360 HRC<\/td><td>\ub0b4\uad6c\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \ud30c\uc190\uc744 \uc904\uc785\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc2ac\ub9ac\ud305 \ucee4\ud130 \ubc0f \uc804\ub2e8 \ube14\ub808\uc774\ub4dc<\/td><td>58\u201361 HRC<\/td><td>\uc5f0\ub9c8 \uc808\uc0ad \uc2dc\uc5d0\ub3c4 \ub0a0 \uc720\uc9c0\ub825\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ub0c9\uac04 \uc555\ucd9c \ud234\ub9c1<\/td><td>58\u201362 HRC<\/td><td>\uc555\ucd95 \uac15\ub3c4, \uc778\uc131 \ubc0f \ub9c8\ubaa8\uc758 \uade0\ud615\uc744 \uc720\uc9c0\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>\n            <tr><td>\uac8c\uc774\uc9c0 \ubc0f \uce21\uc815 \ub3c4\uad6c<\/td><td>58\u201360 HRC<\/td><td>\uce58\uc218 \uc548\uc815\uc131\uacfc \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc6b0\uc120\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>\n            <tr><td>\ub098\uc0ac\uc0b0 \uc555\uc5f0 \ub2e4\uc774<\/td><td>58\u201360 HRC<\/td><td>\ud45c\uba74 \ub9c8\ubaa8 \uc800\ud56d\uc131\uacfc \uc555\ucd95 \uac15\ub3c4\ub97c \uc720\uc9c0\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>\n            <tr><td>\uc18c\ud615 \uc5f0\ub9c8\uc131 \ud50c\ub77c\uc2a4\ud2f1 \uae08\ud615 \uc778\uc11c\ud2b8<\/td><td>58\u201360 HRC<\/td><td>\ub0b4\ub9c8\ubaa8\uc131\uc774 \uc694\uad6c\ub418\ub294 \uacbd\uc6b0\uc5d0 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\ucda9\uaca9\uc5d0 \ubbfc\uac10\ud55c \uacf5\uad6c\uc758 \uacbd\uc6b0, \ucd5c\ub300 \uacbd\ub3c4\uac00 \ud56d\uc0c1 \ucd5c\uc120\uc758 \uc120\ud0dd\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uacbd\ub3c4\uac00 \uc57d\uac04 \ub0ae\ub354\ub77c\ub3c4 \uc778\uc131\uacfc \uc548\uc815\uc131\uc774 \ub6f0\uc5b4\ub098\uba74, \uade0\uc5f4 \uc704\ud5d8\uc774 \uc788\ub294 \uace0\uacbd\ub3c4 \uacf5\uad6c\ubcf4\ub2e4 \uc218\uba85\uc774 \ub354 \uae38\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n      <h2>\ub2e8\uba74 \ud06c\uae30 \ubc0f \uc5f4\ucc98\ub9ac \uc704\ud5d8<\/h2>\n      <p>\ub2e8\uba74 \ud06c\uae30\ub294 D2 \uc5f4\ucc98\ub9ac\uc5d0 \ud070 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \ub450\uaebc\uc6b4 \ub2e8\uba74\uc740 \uc587\uc740 \ub2e8\uba74\ubcf4\ub2e4 \uac00\uc5f4 \ubc0f \ub0c9\uac01 \uc18d\ub3c4\uac00 \ub290\ub9bd\ub2c8\ub2e4. \ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac, \ub9c9\ud78c \uad6c\uba4d, \uae09\uaca9\ud55c \ub450\uaed8 \ubcc0\ud654\ub294 \ubcc0\ud615\uacfc \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc744 \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n      <p>\ub300\ud615 D2 \uacf5\uad6c\ub294 \ucc9c\ucc9c\ud788 \uadf8\ub9ac\uace0 \uade0\uc77c\ud558\uac8c \uac00\uc5f4\ud574\uc57c \ud569\ub2c8\ub2e4. \ud45c\uba74\uc774 \uacbd\ud654 \uc628\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\ub294 \ub3d9\uc548 \uc911\uc2ec\ubd80\uac00 \ud6e8\uc52c \ub0ae\uc740 \uc628\ub3c4\ub97c \uc720\uc9c0\ud558\uba74 \ub0b4\ubd80 \uc751\ub825\uc774 \uc2ec\uac01\ud558\uac8c \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub300\ud615 \ube14\ub85d\uc774\ub098 \ubcf5\uc7a1\ud55c \ud615\ud0dc\uc758 \uacf5\uad6c\ub97c \uc81c\uc791\ud560 \ub54c\ub294 \uc608\uc5f4\uc774 \ud2b9\ud788 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n      <p>\ub2f4\uae08\uc9c8 \uacfc\uc815\uc5d0\uc11c \uc587\uc740 \ubd80\ubd84\uc740 \ub450\uaebc\uc6b4 \ubd80\ubd84\ubcf4\ub2e4 \ub354 \ube60\ub974\uac8c \ub0c9\uac01\ub418\uace0 \ubcc0\ud615\ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubd88\uade0\uc77c\ud55c \ubcc0\ud615\uc740 \ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac\ub098 \ub2e8\uba74\uc758 \uae09\uaca9\ud55c \ubcc0\ud654 \ubd80\uadfc\uc5d0 \ub0b4\ubd80 \uc751\ub825\uc744 \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc6b0\uc218\ud55c \uacf5\uad6c \uc124\uacc4\ub294 \ub0a0\uce74\ub85c\uc6b4 \ub0b4\ubd80 \ubaa8\uc11c\ub9ac\ub97c \ucd5c\uc18c\ud654\ud558\uace0 \ubd88\ud544\uc694\ud55c \ub450\uaed8 \ubcc0\ud654\ub97c \ubc29\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <p>\ub9e4\uc6b0 \ud070 \ub2e8\uba74\uc758 \uacbd\uc6b0, \uacf5\ub7ad\uc73c\ub85c\ub294 \ud544\uc694\ud55c \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud560 \ub9cc\ud07c \uc911\uc2ec\ubd80\ub97c \ucda9\ubd84\ud788 \ube60\ub974\uac8c \ub0c9\uac01\uc2dc\ud0a4\uc9c0 \ubabb\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf4\ub2e4 \uac15\ub825\ud55c \ub0c9\uac01\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc9c0\ub9cc, \uac15\ud55c \ub2f4\uae08\uc9c8\uc740 \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\ub3c4 \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub300\ud615 D2 \uacf5\uad6c\uc5d0\ub294 \ub2e8\uc77c \uace0\uc815 \uc5f4\ucc98\ub9ac \uc2a4\ucf00\uc904\ubcf4\ub2e4\ub294 \uacf5\uc815 \uc870\uc815\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n      <p>\uc5f4\ucc98\ub9ac \uc2dc\uac04\uc740 \ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ub450\uaed8 1\uc778\uce58(25mm)\ub2f9 \ucd5c\uc18c 2\uc2dc\uac04\uc744 \uae30\uc900\uc73c\ub85c \ud558\uba70, \uc5f4\ucc98\ub9ac \uc8fc\uae30 \uc0ac\uc774\uc5d0\ub294 \uc2e4\uc628\uc73c\ub85c \ub0c9\uac01\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n      <h2>D2 \uc5f4\ucc98\ub9ac \uc2dc \ud754\ud788 \ubc1c\uc0dd\ud558\ub294 \ubb38\uc81c\uc810<\/h2>\n      <h3>1. \uacfc\uc5f4<\/h3>\n      <p>D2 \ud569\uae08\uc744 \uad8c\uc7a5 \ubc94\uc704 \uc774\uc0c1\uc73c\ub85c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654\ud558\uac70\ub098 \ub108\ubb34 \uc624\ub7ab\ub3d9\uc548 \uc720\uc9c0\ud558\uba74 \uacfc\uc5f4 \ud604\uc0c1\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc774\ub294 \uacb0\uc815\ub9bd \uc870\ub300\ud654, \uacfc\ub3c4\ud55c \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8, \ucde8\uc131 \uc99d\uac00, \uacbd\ub3c4 \uc800\ud558 \ubc0f \uade0\uc5f4 \uc704\ud5d8 \uc99d\uac00\ub97c \ucd08\ub798\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>\ud574\uacb0\ucc45\uc740 \ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub77c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uc640 \uc720\uc9c0 \uc2dc\uac04\uc744 \uc81c\uc5b4\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n      <h3>2. \uacfc\uc5f4<\/h3>\n      <p>\uacfc\uc18c \uac00\uc5f4\uc740 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\uac00 \ub108\ubb34 \ub0ae\uac70\ub098 \uc720\uc9c0 \uc2dc\uac04\uc774 \ub108\ubb34 \uc9e7\uc744 \ub54c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \ud569\uae08 \ud0c4\ud654\ubb3c\uc774 \uc644\uc804\ud788 \uc6a9\ud574\ub418\uc9c0 \uc54a\uc544 \ub2f4\uae08\uc9c8 \ud6c4 \uc608\uc0c1\ub418\ub294 \uacbd\ub3c4\ub97c \uc5bb\uc9c0 \ubabb\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>\uc774\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub0ae\uc740 \uacbd\ub3c4, \uc57d\ud55c \ub0b4\ub9c8\ubaa8\uc131 \ubc0f \ubd88\ub7c9\ud55c \uc11c\ube44\uc2a4 \uc131\ub2a5\uc73c\ub85c \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n\n      <h3>3. \ud45c\uba74 \ud0c8\ud0c4<\/h3>\n      <p>D2\ub97c \ubcf4\ud638 \uc7a5\uce58 \uc5c6\uc774 \uac00\uc5f4\ud558\uba74 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uacfc\uc815\uc5d0\uc11c \ud45c\uba74\uc758 \ud0c4\uc18c\uac00 \uc190\uc2e4\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud0c8\ud0c4\ub41c \ud45c\uba74\uc740 \uacbd\ud654 \ud6c4\uc5d0\ub3c4 \uc5f0\uc9c8 \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud558\uc5ec \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc800\ud558\uc2dc\ud0a4\uace0 \ubcc0\ud615 \uc704\ud5d8\uc744 \uc99d\uac00\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>\uc9c4\uacf5 \uc5f4\ucc98\ub9ac, \uc81c\uc5b4 \ubd84\uc704\uae30 \uc5f4\ucc98\ub9ac, \uc911\uc131 \uc5fc\uc695 \ub610\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \ud638\uc77c \ud3ec\uc7a5\uc744 \ud1b5\ud574 \uc774\ub7ec\ud55c \ubb38\uc81c\ub97c \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n      <h3>4. \uc9c0\uc5f0 \ub2f4\uae08\uc9c8<\/h3>\n      <p>D2\uac15\uc740 \ub2f4\uae08\uc9c8 \uc9c1\ud6c4, \uc57d 50~66\u00b0C(120~150\u00b0F)\uae4c\uc9c0 \ub0c9\uac01\ub418\uc5c8\uc744 \ub54c \uc989\uc2dc \ud15c\ud37c\ub9c1\ud574\uc57c \ud569\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \uc9c1\ud6c4\uc758 D2\uac15\uc740 \uc751\ub825\uc774 \ub9e4\uc6b0 \ub192\uc740 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub97c \ud3ec\ud568\ud558\uace0 \uc788\uc5b4 \ud15c\ud37c\ub9c1\uc774 \uc9c0\uc5f0\ub420 \uacbd\uc6b0 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>\uacbd\ud654\ub41c D2\uac15\uc744 \uc5f4\ucc98\ub9ac \uc5c6\uc774 \ud558\ub8fb\ubc24 \ub3d9\uc548 \ubc29\uce58\ud558\ub294 \uac83\uc740 \uc704\ud5d8\ud558\uba70, \ud2b9\ud788 \ubcf5\uc7a1\ud55c \uacf5\uad6c\ub098 \ubb34\uac70\uc6b4 \ubd80\ud488\uc758 \uacbd\uc6b0 \ub354\uc6b1 \uadf8\ub807\uc2b5\ub2c8\ub2e4.<\/p>\n\n      <h3>5. \ubd80\uc801\uc808\ud55c \ub2f4\uae08\uc9c8 \uc628\ub3c4<\/h3>\n      <p>D2\uac15\uc740 \ub192\uc740 \uacbd\ub3c4\ub97c \uc704\ud574 \uc800\uc628\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud558\uac70\ub098, \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud574 \uace0\uc628\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud15c\ud37c\ub9c1 \uc628\ub3c4\ub294 \uc6a9\ub3c4\uc5d0 \ub9de\ucdb0 \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <p>\ub9ce\uc740 \uc0b0\uc5c5\uc6a9 \uacf5\uad6c\uc758 \uacbd\uc6b0, 900~960\u00b0F(480~515\u00b0C)\uc5d0\uc11c \ub450 \ubc88 \uc5f4\ucc98\ub9ac\ud558\ub294 \uac83\uc774 \ud55c \ubc88 \uc800\uc628 \uc5f4\ucc98\ub9ac\ud558\ub294 \uac83\ubcf4\ub2e4 \ub354 \uc548\uc815\uc801\uc785\ub2c8\ub2e4.<\/p>\n\n      <h3>6. \uc124\uacc4 \uc720\ubc1c \ub2f4\uae08\uc9c8 \uade0\uc5f4<\/h3>\n      <p>D2 \uacf5\uad6c \uc911 \uc77c\ubd80\ub294 \uac15\uc7ac \ud488\uc9c8\ubcf4\ub2e4\ub294 \ud615\uc0c1 \ub54c\ubb38\uc5d0 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ub0a0\uce74\ub85c\uc6b4 \ub0b4\ubd80 \ubaa8\uc11c\ub9ac, \uae4a\uc740 \uc790\uad6d, \ub9c9\ud78c \uad6c\uba4d, \ub450\uaebc\uc6b4 \ubd80\ubd84\uc5d0 \uc778\uc811\ud55c \uc587\uc740 \ubcbd, \uae09\uaca9\ud55c \ub2e8\uba74 \ubcc0\ud654 \ub4f1\uc774 \ubaa8\ub450 \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc744 \ub192\uc785\ub2c8\ub2e4.<\/p>\n      <p>\uac00\ub2a5\ud55c \ud55c \ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac\ub294 \ub465\uae00\uac8c \ucc98\ub9ac\ud558\uace0, \ub2e8\uba74 \ubcc0\ud654\ub294 \ucd5c\uc18c\ud654\ud558\uba70, \ubcf5\uc7a1\ud55c \uacf5\uad6c\ub294 \uc5f4\ucc98\ub9ac\ub97c \uace0\ub824\ud558\uc5ec \uc124\uacc4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n      <h3>7. \uc5f4\ucc98\ub9ac \ud6c4 \uc5f0\uc0ad \uc190\uc0c1<\/h3>\n      <p>D2\ub294 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub6f0\uc5b4\ub098\ubbc0\ub85c, \uacfc\ub3c4\ud55c \uc5f0\uc0ad\uc740 \uad6d\ubd80\uc801\uc778 \uc5f4 \ubc1c\uc0dd\uc744 \ucd08\ub798\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \ud45c\uba74\uc774 \uc5f0\ud654\ub418\uac70\ub098, \uc5f0\uc0ad \ud654\uc0c1\uc774 \ubc1c\uc0dd\ud558\uac70\ub098, \uc595\uc740 \ud45c\uba74 \uade0\uc5f4\uc774 \uc0dd\uae38 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>\uacbd\ud654 \ud6c4, D2\uac15\uc740 \uc801\uc808\ud55c \ub0c9\uac01\uc218 \uc0ac\uc6a9\uacfc \uc81c\uc5b4\ub41c \uc7ac\ub8cc \uc81c\uac70\ub97c \ud1b5\ud574 \uac00\ubccd\uac8c \uc5f0\uc0ad\ud574\uc57c \ud569\ub2c8\ub2e4. \uc911\uc694 \uacf5\uad6c\uc758 \uacbd\uc6b0, \uac15\ud55c \uc5f0\uc0ad \ud6c4 \uc800\uc628 \uc751\ub825 \uc644\ud654 \ud15c\ud37c\ub9c1\uc744 \uace0\ub824\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n      <div class=\"aobo-note-box\">\n        <p>\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 D2\/1.2379\/SKD11 \uacf5\uad6c\uac15\uc744 \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\ub85c \uacf5\uae09\ud558\uba70, \uacbd\ud654, \ub2f4\uae08\uc9c8, \uadf9\uc800\uc628 \ucc98\ub9ac \ub610\ub294 \ud15c\ud37c\ub9c1\uacfc \uac19\uc740 \ucd5c\uc885 \uc5f4\ucc98\ub9ac \uc11c\ube44\uc2a4\ub294 \uc81c\uacf5\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n        <p>\ubcf8 \uc548\ub0b4\uc11c\uc5d0 \uc81c\uc2dc\ub41c \uc5f4\ucc98\ub9ac \ub9e4\uac1c\ubcc0\uc218, \uacbd\ub3c4 \ub370\uc774\ud130 \ubc0f \uacf5\uc815 \uad8c\uc7a5 \uc0ac\ud56d\uc740 \uace0\uac1d \uc5ec\ub7ec\ubd84\uaed8 \uc77c\ubc18\uc801\uc778 \uae30\uc220 \uc9c0\uc6d0 \ucc38\uace0 \uc790\ub8cc\ub85c \uc81c\uacf5\ub429\ub2c8\ub2e4. \uc2e4\uc81c \uc5f4\ucc98\ub9ac \uacb0\uacfc\ub294 \uc6a9\uad11\ub85c \uc6a9\ub7c9, \ub2e8\uba74 \ud06c\uae30, \uacf5\uad6c \ud615\uc0c1, \uc7ac\ub8cc \uc0c1\ud0dc, \ub2f4\uae08\uc9c8 \ubc29\uc2dd \ubc0f \uacf5\uc815 \uc81c\uc5b4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucd5c\uc885 \uc5f4\ucc98\ub9ac \uc808\ucc28 \ubc0f \uac80\uc99d\uc740 \ud2b9\uc815 \uacf5\uad6c \uc801\uc6a9 \ubd84\uc57c \ubc0f \uc0dd\uc0b0 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \uace0\uac1d\uc0ac\uc758 \uc5f4\ucc98\ub9ac \uc2dc\uc124\uc5d0\uc11c \uc218\ud589\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <\/div>\n\n      <section class=\"aobo-final-cta\">\n        <div>\n          <h2>\uc5f4\ucc98\ub9ac \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc0ac\uc6a9\ud560 \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c D2 \uacf5\uad6c\uac15\uc774 \ud544\uc694\ud558\uc2e0\uac00\uc694?<\/h2>\n          <p>\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 D2\/1.2379\/SKD11 \uc6d0\ud615 \ubd09\uac15 \ubc0f \ud310\uc7ac\ub97c \uacf5\uae09\ud558\uba70, \ucd9c\ud558 \uc804 \uacf5\uc7a5 \uc778\uc99d\uc11c \ubc0f \uce58\uc218 \uac80\uc0ac\ub97c \uc2e4\uc2dc\ud569\ub2c8\ub2e4.<\/p>\n        <\/div>\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\/d2-tool-steel\/\">D2 \uacf5\uae09 \uc0c1\uc138 \uc815\ubcf4\ub97c \ud655\uc778\ud558\uc138\uc694<\/a>\n        <\/div>\n      <\/section>\n    <\/main>\n  <\/div>\n<\/section>\n\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-1778199686229\"><strong class=\"schema-faq-question\">D2 \uacf5\uad6c\uac15\uc758 \uc77c\ubc18\uc801\uc778 \uc5f4\ucc98\ub9ac \uacf5\uc815\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">D2 \uacf5\uad6c\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc608\uc5f4, \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1\uc758 \uc5f4\ucc98\ub9ac \uacfc\uc815\uc744 \uac70\uce69\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \uacf5\uc815\uc740 \uc608\uc5f4\uc744 \ud1b5\ud574 \uc2dc\uc791\ub429\ub2c8\ub2e4. <strong>1200\u20131250\u00b0F \/ 649\u2013677\u00b0C<\/strong>, \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 <strong>1795\u20131875\u00b0F \/ 980\u20131025\u00b0C<\/strong>, \ub2e8\uba74 \ud06c\uae30\uc5d0 \ub530\ub77c \uacf5\uae30, \uac00\uc2a4, \uc624\uc77c \ub610\ub294 \uc5fc\uc695\uc73c\ub85c \ub2f4\uae08\uc9c8\ud55c \ud6c4 \uc774\uc911 \ud15c\ud37c\ub9c1\uc744 \uc2e4\uc2dc\ud569\ub2c8\ub2e4. <strong>900\u2013960\u00b0F \/ 480\u2013515\u00b0C<\/strong>. \uce58\uc218 \uc548\uc815\uc131 \ubc0f \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4\uac00 \uc911\uc694\ud55c \uacbd\uc6b0 \uadf9\uc800\uc628 \ucc98\ub9ac\ub97c \ucd94\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778199717481\"><strong class=\"schema-faq-question\">D2 \uacf5\uad6c\uac15\uc740 \uc5f4\ucc98\ub9ac \ud6c4 \uc5b4\ub290 \uc815\ub3c4\uc758 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">D2 \uacf5\uad6c\uac15\uc740 \uc57d 100%\uae4c\uc9c0 \ub3c4\ub2ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <strong>\ub2f4\uae08\uc9c8 \ud6c4 \uacbd\ub3c4 64 HRC<\/strong>. \ud15c\ud37c\ub9c1 \ud6c4 \ucd5c\uc885 \uac00\uacf5 \uacbd\ub3c4\ub294 \ud15c\ud37c\ub9c1 \uc628\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \uc57d 100\u00b0C \ubd80\uadfc\uc758 \uc800\uc628 \ud15c\ud37c\ub9c1\uc740... <strong>400\u00b0F \/ 205\u00b0C<\/strong> \uc57d 10 ... <strong>61 HRC<\/strong>, \uace0\uc628 \uc774\uc911 \ud15c\ud37c\ub9c1\uc740 \uc8fc\ubcc0\uc5d0\uc11c \uc774\ub8e8\uc5b4\uc9d1\ub2c8\ub2e4. <strong>900\u2013960\u00b0F \/ 480\u2013515\u00b0C<\/strong> \uc77c\ubc18\uc801\uc73c\ub85c ~\uc5d0 \ub300\ud574 \uc54c\ub824\uc90d\ub2c8\ub2e4. <strong>58\u201360 HRC<\/strong> \uce58\uc218 \uc548\uc815\uc131\uc774 \ub354\uc6b1 \ub6f0\uc5b4\ub0a9\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778199718291\"><strong class=\"schema-faq-question\">D2 \uacf5\uad6c\uac15\uc740 \uacf5\ub7ad\uc2dd \ub2f4\uae08\uc9c8\ud574\uc57c \ud560\uae4c\uc694, \uc544\ub2c8\uba74 \uc720\ub7ad\uc2dd \ub2f4\uae08\uc9c8\ud574\uc57c \ud560\uae4c\uc694?<\/strong> <p class=\"schema-faq-answer\">D2\ub294 \uacf5\uae30 \uacbd\ud654\ud615 \uacf5\uad6c\uac15\uc774\ubbc0\ub85c \ubcc0\ud615 \ubc0f \uade0\uc5f4 \uc704\ud5d8\uc744 \uc904\uc774\uae30 \uc704\ud574 \uc81c\uc5b4\ub41c \uacf5\ub7ad \ub610\ub294 \uac00\uc2a4 \ub2f4\uae08\uc9c8\uc774 \uc885\uc885 \uc120\ud638\ub429\ub2c8\ub2e4. \uc77c\ubd80 \ub300\ud615 \ubd80\ud488\uc774\ub098 \ud2b9\uc218\ud55c \uacbd\uc6b0\uc5d0\ub294 \uc624\uc77c \ub2f4\uae08\uc9c8\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc774\ub294 \uc5f4 \ucda9\uaca9\uc744 \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \ubc29\ubc95\uc740 \ubd80\ud488 \ud06c\uae30, \uacf5\uad6c \ud615\uc0c1 \ubc0f \uc694\uad6c\ub418\ub294 \uacbd\ub3c4\ub97c \uace0\ub824\ud558\uc5ec \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778199719081\"><strong class=\"schema-faq-question\">D2 \uacf5\uad6c\uac15\uc5d0 \uadf9\uc800\uc628 \ucc98\ub9ac\uac00 \ud544\uc694\ud55c\uac00\uc694?<\/strong> <p class=\"schema-faq-answer\">D2 \uacf5\uad6c\uac15\uc5d0 \uadf9\uc800\uc628 \ucc98\ub9ac\uac00 \ud56d\uc0c1 \ud544\uc694\ud55c \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uadf9\uc800\uc628 \ucc98\ub9ac\ub294 \uc8fc\ub85c \uacf5\uad6c\uc758 \uce58\uc218 \uc548\uc815\uc131 \ud5a5\uc0c1, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ud568\ub7c9 \uac10\uc18c, \uadf8\ub9ac\uace0 \ub354\uc6b1 \uc77c\uad00\ub41c \ub0b4\ub9c8\ubaa8\uc131 \ud655\ubcf4\uac00 \ud544\uc694\ud560 \ub54c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc815\ubc00 \uae08\ud615, \uac8c\uc774\uc9c0, \ud380\uce58, \uc2ac\ub9ac\ud305 \uacf5\uad6c \ubc0f \uace0\ub9c8\ubaa8\uc131 \uacf5\uad6c\ub294 \uadf9\uc800\uc628 \ucc98\ub9ac\ub97c \ud1b5\ud574 \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \uacf5\uad6c\ub294 \uc801\uc808\ud55c \uc774\uc911 \ud15c\ud37c\ub9c1\ub9cc\uc73c\ub85c\ub3c4 \ucda9\ubd84\ud55c \uc131\ub2a5\uc744 \ubc1c\ud718\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778199719852\"><strong class=\"schema-faq-question\">D2 \uacf5\uad6c\uac15\uc740 \ub2f4\uae08\uc9c8 \ud6c4 \uc5b8\uc81c \ud15c\ud37c\ub9c1\ud574\uc57c \ud569\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">D2\uac15\uc740 \ub2f4\uae08\uc9c8 \uc9c1\ud6c4, \uc989 \ubd80\ud488\uc774 \ub300\ub7b5 100\u2103\uae4c\uc9c0 \uc2dd\uc5c8\uc744 \ub54c \uc989\uc2dc \ud15c\ud37c\ub9c1\ud574\uc57c \ud569\ub2c8\ub2e4.\u00a0<strong>120~150\u00b0F (50~66\u00b0C)<\/strong>. \uac13 \ub2f4\uae08\uc9c8\ud55c D2\uac15\uc740 \uc751\ub825\uc774 \ub9e4\uc6b0 \ub192\uc740 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub97c \ud568\uc720\ud558\uace0 \uc788\uc5b4 \ud15c\ud37c\ub9c1\uc774 \uc9c0\uc5f0\ub420 \uacbd\uc6b0 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uacbd\ud654\ub41c D2\uac15\uc744 \ud15c\ud37c\ub9c1 \uc5c6\uc774 \ud558\ub8fb\ubc24 \ub3d9\uc548 \ubc29\uce58\ud558\ub294 \uac83\uc740 \ud2b9\ud788 \ubcf5\uc7a1\ud55c \uacf5\uad6c\ub098 \ubb34\uac70\uc6b4 \ubd80\ud488\uc758 \uacbd\uc6b0 \uc704\ud5d8\ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778199763713\"><strong class=\"schema-faq-question\">D2 \uacf5\uad6c\uac15\uc5d0 \uc774\uc911 \uc5f4\ucc98\ub9ac\uac00 \uad8c\uc7a5\ub418\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">D2\uac15\uc740 \ud569\uae08 \ud568\ub7c9\uc774 \ub192\uc544 \ub2f4\uae08\uc9c8 \ud6c4\uc5d0\ub3c4 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uac00 \uc794\ub958\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \uc774\uc911 \ud15c\ud37c\ub9c1\uc744 \uad8c\uc7a5\ud569\ub2c8\ub2e4. 1\ucc28 \ud15c\ud37c\ub9c1\uc740 \uc751\ub825\uc744 \uac10\uc18c\uc2dc\ud0a4\uace0 \uad6c\uc870 \uc548\uc815\ud654\ub97c \uc2dc\uc791\ud569\ub2c8\ub2e4. \uc0c1\uc628\uae4c\uc9c0 \ub0c9\uac01\ud558\uba74 \ucd94\uac00\uc801\uc778 \ubcc0\ud0dc\uac00 \uc77c\uc5b4\ub098\uace0, 2\ucc28 \ud15c\ud37c\ub9c1\uc740 \uc0c8\ub85c \ud615\uc131\ub41c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub97c \uc548\uc815\ud654\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \uc90d\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uce58\uc218 \uc548\uc815\uc131\uc774 \ud5a5\uc0c1\ub418\uace0 \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc774 \uac10\uc18c\ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778199764493\"><strong class=\"schema-faq-question\">D2 \uacf5\uad6c\uac15\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ud15c\ud37c\ub9c1 \uc628\ub3c4\ub294 \uba87 \ub3c4\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">\ubaa8\ub4e0 D2 \uacf5\uad6c\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2e8\uc77c \uc5f4\ucc98\ub9ac \uc628\ub3c4\ub294 \uc5c6\uc2b5\ub2c8\ub2e4. \ucd5c\ub300 \uacbd\ub3c4\uac00 \ud544\uc694\ud55c \uacbd\uc6b0 D2\ub294 \uc57d 100\u00b0C \ubd80\uadfc\uc5d0\uc11c \uc5f4\ucc98\ub9ac\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <strong>400\u00b0F \/ 205\u00b0C<\/strong>. \uce58\uc218 \uc548\uc815\uc131, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4 \ubc0f \uc0ac\uc6a9 \uc2e0\ub8b0\uc131\uc774 \ub354 \uc911\uc694\ud558\ub2e4\uba74 \uace0\uc628 \uc774\uc911 \ud15c\ud37c\ub9c1\uc744 \uc801\uc6a9\ud558\uc2ed\uc2dc\uc624. <strong>900~960\u00b0F (480~515\u00b0C)<\/strong> \ub300\uac1c \uc120\ud638\ub429\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778199765365\"><strong class=\"schema-faq-question\">D2 \uacf5\uad6c\uac15\uc774 \uc5f4\ucc98\ub9ac \uc911\uc5d0 \uade0\uc5f4\uc774 \uc0dd\uae30\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">D2\uac15\uc740 \uacfc\ub3c4\ud55c \uac00\uc5f4 \uc18d\ub3c4, \ubd80\uc801\uc808\ud55c \uc608\uc5f4, \ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac, \ubd88\uade0\uc77c\ud55c \ub2e8\uba74 \ub450\uaed8, \uae09\uaca9\ud55c \ub2f4\uae08\uc9c8, \uc9c0\uc5f0\ub41c \ud15c\ud37c\ub9c1 \ub610\ub294 \ubd80\uc801\uc808\ud55c \ubd80\ud488 \uc124\uacc4\ub85c \uc778\ud574 \uc5f4\ucc98\ub9ac \uc911 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. D2\uac15\uc740 \uacbd\ub3c4\uac00 \ub192\uace0 \ud569\uae08 \ud568\ub7c9\uc774 \ub192\uae30 \ub54c\ubb38\uc5d0 \uc5f4\ucc98\ub9ac \uc751\ub825\uc744 \uc2e0\uc911\ud558\uac8c \uc81c\uc5b4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778199800038\"><strong class=\"schema-faq-question\">D2 \uacf5\uad6c\uac15\uc774 \uc608\uc0c1 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\uc9c0 \ubabb\ud558\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">\uacbd\ub3c4\uac00 \ub0ae\uc740 \uc6d0\uc778\uc740 \uc624\uc2a4\ud14c\ub098\uc774\uc9d5 \uc628\ub3c4\uac00 \ubd88\ucda9\ubd84\ud558\uac70\ub098, \uc720\uc9c0 \uc2dc\uac04\uc774 \uc9e7\uac70\ub098, \ub113\uc740 \ub2e8\uba74\uc5d0\uc11c \ub0c9\uac01\uc774 \ub290\ub9ac\uac70\ub098, \ud45c\uba74 \ud0c8\ud0c4\uc774 \ubc1c\uc0dd\ud558\uac70\ub098, \ud15c\ud37c\ub9c1\uc774 \ubd80\uc801\uc808\ud55c \uacbd\uc6b0\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e8\uba74 \uc804\uccb4\uac00 \uc801\uc808\ud55c \uc624\uc2a4\ud14c\ub098\uc774\uc9d5 \uc628\ub3c4\uc5d0 \ub3c4\ub2ec\ud574\uc57c \ud558\uba70, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \uacf5\uc815\uc740 \ub2e8\uba74 \ud06c\uae30\uc5d0 \ub9de\ucdb0\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778199800773\"><strong class=\"schema-faq-question\">\ub2e8\uba74 \ud06c\uae30\uac00 D2 \uc5f4\ucc98\ub9ac\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub098\uc694?<\/strong> <p class=\"schema-faq-answer\">\ub124. \ub2e8\uba74 \ud06c\uae30\ub294 \uac00\uc5f4, \uc720\uc9c0, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1\uc5d0 \ud070 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \ub450\uaebc\uc6b4 \ub2e8\uba74\uc740 \uc587\uc740 \ub2e8\uba74\ubcf4\ub2e4 \uac00\uc5f4 \ubc0f \ub0c9\uac01 \uc18d\ub3c4\uac00 \ub290\ub9bd\ub2c8\ub2e4. \ub300\ud615 D2 \ubd80\ud488\uc740 \ub354 \uae34 \uade0\uc77c\ud654 \uc2dc\uac04\uacfc \uc2e0\uc911\ud55c \ub2f4\uae08\uc9c8 \uc870\uac74 \uc120\ud0dd\uc774 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uae09\uaca9\ud55c \ub2e8\uba74 \ubcc0\ud654, \ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac \ubc0f \ub9c9\ud78c \uad6c\uba4d \ub610\ud55c \ubcc0\ud615 \ubc0f \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc744 \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778199818018\"><strong class=\"schema-faq-question\">D2 \uacf5\uad6c\uac15\uc740 \uac00\uacf5 \ud6c4 \uc5f4\ucc98\ub9ac\uac00 \uac00\ub2a5\ud55c\uac00\uc694?<\/strong> <p class=\"schema-faq-answer\">\ub124, D2\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac \ud6c4 \ud669\uc0ad \uac00\uacf5\uc744 \uac70\uccd0 \uc5f4\ucc98\ub9ac\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uacfc\ub3c4\ud55c \uac00\uacf5\uc740 \uc751\ub825\uc744 \uc720\ubc1c\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c, \ud06c\uac70\ub098 \ubcf5\uc7a1\ud55c \ubd80\ud488\uc758 \uacbd\uc6b0 \uacbd\ud654 \uc804 \uc751\ub825 \uc81c\uac70\ub97c \uace0\ub824\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uacbd\ud654 \ud6c4 \ucd5c\uc885 \uc5f0\uc0ad\uc740 \uc5f0\uc0ad \ud654\uc0c1\uc774\ub098 \ud45c\uba74 \uade0\uc5f4\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc138\uc2ec\ud558\uac8c \uad00\ub9ac\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778199818756\"><strong class=\"schema-faq-question\">\uc544\uc624\ubcf4\uc81c\ucca0\uc740 D2 \uc5f4\ucc98\ub9ac \uc11c\ube44\uc2a4\ub97c \uc81c\uacf5\ud569\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">\uc544\ub2c8\uc694. \uc544\uc624\ubcf4 \ucca0\uac15\uc740 \uacf5\uae09\ud569\ub2c8\ub2e4. <strong>D2 \/ 1.2379 \/ SKD11 \uacf5\uad6c\uac15<\/strong> \uc8fc\ub85c \ub300\ub7c9 \uc0b0\uc5c5 \uc8fc\ubb38\uc6a9\uc73c\ub85c \uc6d0\ud615 \ubd09 \ubc0f \ud3c9\ud310 \ud615\ud0dc\ub85c \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub429\ub2c8\ub2e4. \ucd5c\uc885 \uacbd\ud654, \ub2f4\uae08\uc9c8, \uadf9\uc800\uc628 \ucc98\ub9ac \ubc0f \ud15c\ud37c\ub9c1\uc740 \uace0\uac1d\uc758 \ud604\uc9c0 \uc5f4\ucc98\ub9ac \uc2dc\uc124\uc5d0\uc11c \uc218\ud589\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>D2 Tool Steel Heat Treatment Guide D2 tool steel is usually heat-treated by preheating to 1200\u20131250\u00b0F \/ 649\u2013677\u00b0C, austenitizing at 1795\u20131875\u00b0F \/ 980\u20131025\u00b0C, quenching by air, gas, oil, or salt bath, depending on section size, and double tempering at 900\u2013960\u00b0F \/ 480\u2013515\u00b0C. In many cold-work tooling applications, this process produces a hardness of about 58\u201360 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15078,"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-11776","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>D2 Heat Treatment Guide: Tempering Chart, Hardness &amp; Process<\/title>\n<meta name=\"description\" content=\"See D2 heat treatment temperatures, quenching methods, tempering chart, cryogenic treatment, and final hardness range. Aobo Steel gives practical process guidance for D2 \/ 1.2379 \/ SKD11.\" \/>\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\/d2-tool-steel-heat-treatment-guide\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"D2 Heat Treatment Guide: Tempering Chart, Hardness &amp; Process\" \/>\n<meta property=\"og:description\" content=\"See D2 heat treatment temperatures, quenching methods, tempering chart, cryogenic treatment, and final hardness range. Aobo Steel gives practical process guidance for D2 \/ 1.2379 \/ SKD11.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/d2-tool-steel-heat-treatment-guide\/\" \/>\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=\"2026-06-27T12:00:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-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=\"13\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"D2 Heat Treatment Guide: Tempering Chart, Hardness &amp; Process\",\"datePublished\":\"2025-12-29T11:03:08+00:00\",\"dateModified\":\"2026-06-27T12:00:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/\"},\"wordCount\":2758,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/D2-heat-treatment-ad.avif\",\"inLanguage\":\"ko-KR\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/\",\"name\":\"D2 Heat Treatment Guide: Tempering Chart, Hardness &amp; Process\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/D2-heat-treatment-ad.avif\",\"datePublished\":\"2025-12-29T11:03:08+00:00\",\"dateModified\":\"2026-06-27T12:00:22+00:00\",\"description\":\"See D2 heat treatment temperatures, quenching methods, tempering chart, cryogenic treatment, and final hardness range. Aobo Steel gives practical process guidance for D2 \\\/ 1.2379 \\\/ SKD11.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#breadcrumb\"},\"mainEntity\":[{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199686229\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199717481\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199718291\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199719081\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199719852\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199763713\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199764493\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199765365\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199800038\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199800773\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199818018\"},{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199818756\"}],\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#primaryimage\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/D2-heat-treatment-ad.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/D2-heat-treatment-ad.avif\",\"width\":1254,\"height\":1254},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"D2 Heat Treatment Guide: Tempering Chart, 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\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199686229\",\"position\":1,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199686229\",\"name\":\"What is the normal heat treatment process for D2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"D2 tool steel is normally heat-treated by preheating, austenitizing, quenching, and tempering. A typical process is preheating to <strong>1200\u20131250\u00b0F \\\/ 649\u2013677\u00b0C<\\\/strong>, austenitizing at <strong>1795\u20131875\u00b0F \\\/ 980\u20131025\u00b0C<\\\/strong>, quenching by air, gas, oil, or salt bath depending on section size, and then double tempering at <strong>900\u2013960\u00b0F \\\/ 480\u2013515\u00b0C<\\\/strong>. Cryogenic treatment may be added when dimensional stability and control of retained austenite are critical.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199717481\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199717481\",\"name\":\"What hardness can D2 tool steel reach after heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"D2 tool steel can reach about <strong>64 HRC as quenched<\\\/strong>. After tempering, the final working hardness depends on the tempering temperature. A low-temperature temper around <strong>400\u00b0F \\\/ 205\u00b0C<\\\/strong> can produce about <strong>61 HRC<\\\/strong>, while high-temperature double tempering around <strong>900\u2013960\u00b0F \\\/ 480\u2013515\u00b0C<\\\/strong> commonly gives about <strong>58\u201360 HRC<\\\/strong> with better dimensional stability.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199718291\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199718291\",\"name\":\"Should D2 tool steel be air-quenched or oil-quenched?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"D2 is an air-hardening tool steel, so controlled air cooling or gas quenching is often preferred to reduce the risk of distortion and cracking. Oil quenching may be used in some larger sections or special cases, but it increases thermal shock. The quenching method should be selected according to section size, tool geometry, and required hardness.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199719081\",\"position\":4,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199719081\",\"name\":\"Is cryogenic treatment necessary for D2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cryogenic treatment is not always necessary for D2 tool steel. It is mainly used when the tool requires better dimensional stability, lower retained austenite, and more consistent wear performance. Precision dies, gauges, punches, slitting tools, and high-wear tooling may benefit from cryogenic treatment. General tooling may perform well with proper double tempering alone.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199719852\",\"position\":5,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199719852\",\"name\":\"When should D2 tool steel be tempered after quenching?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"D2 should be tempered immediately after quenching, when the part cools to approximately\u00a0<strong>120\u2013150\u00b0F (50\u201366 \u00b0C)<\\\/strong>. Freshly quenched D2 contains highly stressed martensite and can crack if tempering is delayed. Leaving hardened D2 untempered overnight is risky, especially for complex tools or heavy sections.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199763713\",\"position\":6,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199763713\",\"name\":\"Why is double tempering recommended for D2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Double tempering is recommended because D2 contains high alloy content and may retain austenite after quenching. The first temper reduces stress and begins stabilizing the structure. Cooling to room temperature allows additional transformation, and the second temper helps stabilize newly formed martensite. This improves dimensional stability and reduces the risk of cracking.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199764493\",\"position\":7,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199764493\",\"name\":\"What is the best tempering temperature for D2 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"There is no single best tempering temperature for all D2 tools. If maximum hardness is required, D2 may be tempered around <strong>400\u00b0F \\\/ 205\u00b0C<\\\/strong>. If dimensional stability, retained austenite control, and service reliability are more important, high-temperature double tempering at <strong>900\u2013960\u00b0F (480\u2013515\u00b0C)<\\\/strong> is often preferred.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199765365\",\"position\":8,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199765365\",\"name\":\"Why does D2 tool steel crack during heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"D2 may crack during heat treatment due to excessive heating rate, inadequate preheating, sharp corners, uneven section thickness, severe quenching, delayed tempering, or improper part design. D2 has high hardness and high alloy content, so heat-treatment stresses must be carefully controlled.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199800038\",\"position\":9,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199800038\",\"name\":\"Why does D2 tool steel fail to reach the expected hardness?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Low hardness may come from insufficient austenitizing temperature, short soaking time, slow cooling in large sections, surface decarburization, or improper tempering. The full cross-section must reach the correct austenitizing temperature, and the quenching and tempering process must be matched to the section size.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199800773\",\"position\":10,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199800773\",\"name\":\"Does section size affect D2 heat treatment?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Section size strongly affects heating, soaking, quenching, and tempering. Thick sections heat and cool more slowly than thin sections. Large D2 parts may need longer equalizing time and careful quench selection. Sudden section changes, sharp corners, and blind holes also increase the risk of distortion and cracking.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199818018\",\"position\":11,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199818018\",\"name\":\"Can D2 tool steel be heat-treated after machining?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, D2 is commonly rough machined in an annealed condition and then heat-treated. However, heavy machining can introduce stress, so stress relief before hardening may be considered for large or complex parts. Final grinding should be controlled carefully after hardening to avoid grinding burns or surface cracks.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199818756\",\"position\":12,\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-tool-steel-heat-treatment-guide\\\/#faq-question-1778199818756\",\"name\":\"Does Aobo Steel provide D2 heat treatment service?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Aobo Steel supplies <strong>D2 \\\/ 1.2379 \\\/ SKD11 tool steel<\\\/strong> in an annealed condition, mainly as round bar and flat bar for bulk industrial orders. Final hardening, quenching, cryogenic treatment, and tempering should be performed by the customer\u2019s local heat-treatment facility.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"D2 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc: \ud15c\ud37c\ub9c1 \ucc28\ud2b8, \uacbd\ub3c4 \ubc0f \uacf5\uc815","description":"D2 \uc5f4\ucc98\ub9ac \uc628\ub3c4, \ub2f4\uae08\uc9c8 \ubc29\ubc95, \ud15c\ud37c\ub9c1 \ucc28\ud2b8, \uadf9\uc800\uc628 \ucc98\ub9ac \ubc0f \ucd5c\uc885 \uacbd\ub3c4 \ubc94\uc704\ub97c \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. \uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 D2\/1.2379\/SKD11\uc5d0 \ub300\ud55c \uc2e4\uc6a9\uc801\uc778 \uacf5\uc815 \uc9c0\uce68\uc744 \uc81c\uacf5\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\/d2-tool-steel-heat-treatment-guide\/","og_locale":"ko_KR","og_type":"article","og_title":"D2 Heat Treatment Guide: Tempering Chart, Hardness &amp; Process","og_description":"See D2 heat treatment temperatures, quenching methods, tempering chart, cryogenic treatment, and final hardness range. Aobo Steel gives practical process guidance for D2 \/ 1.2379 \/ SKD11.","og_url":"https:\/\/aobosteel.com\/ko\/d2-tool-steel-heat-treatment-guide\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-06-27T12:00:22+00:00","og_image":[{"width":1254,"height":1254,"url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"13\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"D2 Heat Treatment Guide: Tempering Chart, Hardness &amp; Process","datePublished":"2025-12-29T11:03:08+00:00","dateModified":"2026-06-27T12:00:22+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/"},"wordCount":2758,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"image":{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif","inLanguage":"ko-KR"},{"@type":["WebPage","FAQPage"],"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/","url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/","name":"D2 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc: \ud15c\ud37c\ub9c1 \ucc28\ud2b8, \uacbd\ub3c4 \ubc0f \uacf5\uc815","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#primaryimage"},"image":{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif","datePublished":"2025-12-29T11:03:08+00:00","dateModified":"2026-06-27T12:00:22+00:00","description":"D2 \uc5f4\ucc98\ub9ac \uc628\ub3c4, \ub2f4\uae08\uc9c8 \ubc29\ubc95, \ud15c\ud37c\ub9c1 \ucc28\ud2b8, \uadf9\uc800\uc628 \ucc98\ub9ac \ubc0f \ucd5c\uc885 \uacbd\ub3c4 \ubc94\uc704\ub97c \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. \uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 D2\/1.2379\/SKD11\uc5d0 \ub300\ud55c \uc2e4\uc6a9\uc801\uc778 \uacf5\uc815 \uc9c0\uce68\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#breadcrumb"},"mainEntity":[{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199686229"},{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199717481"},{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199718291"},{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199719081"},{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199719852"},{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199763713"},{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199764493"},{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199765365"},{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199800038"},{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199800773"},{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199818018"},{"@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199818756"}],"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/"]}]},{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#primaryimage","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif","width":1254,"height":1254},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"D2 Heat Treatment Guide: Tempering Chart, 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\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199686229","position":1,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199686229","name":"D2 \uacf5\uad6c\uac15\uc758 \uc77c\ubc18\uc801\uc778 \uc5f4\ucc98\ub9ac \uacf5\uc815\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"D2 tool steel is normally heat-treated by preheating, austenitizing, quenching, and tempering. A typical process is preheating to <strong>1200\u20131250\u00b0F \/ 649\u2013677\u00b0C<\/strong>, austenitizing at <strong>1795\u20131875\u00b0F \/ 980\u20131025\u00b0C<\/strong>, quenching by air, gas, oil, or salt bath depending on section size, and then double tempering at <strong>900\u2013960\u00b0F \/ 480\u2013515\u00b0C<\/strong>. Cryogenic treatment may be added when dimensional stability and control of retained austenite are critical.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199717481","position":2,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199717481","name":"D2 \uacf5\uad6c\uac15\uc740 \uc5f4\ucc98\ub9ac \ud6c4 \uc5b4\ub290 \uc815\ub3c4\uc758 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"D2 tool steel can reach about <strong>64 HRC as quenched<\/strong>. After tempering, the final working hardness depends on the tempering temperature. A low-temperature temper around <strong>400\u00b0F \/ 205\u00b0C<\/strong> can produce about <strong>61 HRC<\/strong>, while high-temperature double tempering around <strong>900\u2013960\u00b0F \/ 480\u2013515\u00b0C<\/strong> commonly gives about <strong>58\u201360 HRC<\/strong> with better dimensional stability.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199718291","position":3,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199718291","name":"D2 \uacf5\uad6c\uac15\uc740 \uacf5\ub7ad\uc2dd \ub2f4\uae08\uc9c8\ud574\uc57c \ud560\uae4c\uc694, \uc544\ub2c8\uba74 \uc720\ub7ad\uc2dd \ub2f4\uae08\uc9c8\ud574\uc57c \ud560\uae4c\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"D2 is an air-hardening tool steel, so controlled air cooling or gas quenching is often preferred to reduce the risk of distortion and cracking. Oil quenching may be used in some larger sections or special cases, but it increases thermal shock. The quenching method should be selected according to section size, tool geometry, and required hardness.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199719081","position":4,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199719081","name":"D2 \uacf5\uad6c\uac15\uc5d0 \uadf9\uc800\uc628 \ucc98\ub9ac\uac00 \ud544\uc694\ud55c\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Cryogenic treatment is not always necessary for D2 tool steel. It is mainly used when the tool requires better dimensional stability, lower retained austenite, and more consistent wear performance. Precision dies, gauges, punches, slitting tools, and high-wear tooling may benefit from cryogenic treatment. General tooling may perform well with proper double tempering alone.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199719852","position":5,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199719852","name":"D2 \uacf5\uad6c\uac15\uc740 \ub2f4\uae08\uc9c8 \ud6c4 \uc5b8\uc81c \ud15c\ud37c\ub9c1\ud574\uc57c \ud569\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"D2 should be tempered immediately after quenching, when the part cools to approximately\u00a0<strong>120\u2013150\u00b0F (50\u201366 \u00b0C)<\/strong>. Freshly quenched D2 contains highly stressed martensite and can crack if tempering is delayed. Leaving hardened D2 untempered overnight is risky, especially for complex tools or heavy sections.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199763713","position":6,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199763713","name":"D2 \uacf5\uad6c\uac15\uc5d0 \uc774\uc911 \uc5f4\ucc98\ub9ac\uac00 \uad8c\uc7a5\ub418\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Double tempering is recommended because D2 contains high alloy content and may retain austenite after quenching. The first temper reduces stress and begins stabilizing the structure. Cooling to room temperature allows additional transformation, and the second temper helps stabilize newly formed martensite. This improves dimensional stability and reduces the risk of cracking.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199764493","position":7,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199764493","name":"D2 \uacf5\uad6c\uac15\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ud15c\ud37c\ub9c1 \uc628\ub3c4\ub294 \uba87 \ub3c4\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"There is no single best tempering temperature for all D2 tools. If maximum hardness is required, D2 may be tempered around <strong>400\u00b0F \/ 205\u00b0C<\/strong>. If dimensional stability, retained austenite control, and service reliability are more important, high-temperature double tempering at <strong>900\u2013960\u00b0F (480\u2013515\u00b0C)<\/strong> is often preferred.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199765365","position":8,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199765365","name":"D2 \uacf5\uad6c\uac15\uc774 \uc5f4\ucc98\ub9ac \uc911\uc5d0 \uade0\uc5f4\uc774 \uc0dd\uae30\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"D2 may crack during heat treatment due to excessive heating rate, inadequate preheating, sharp corners, uneven section thickness, severe quenching, delayed tempering, or improper part design. D2 has high hardness and high alloy content, so heat-treatment stresses must be carefully controlled.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199800038","position":9,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199800038","name":"D2 \uacf5\uad6c\uac15\uc774 \uc608\uc0c1 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\uc9c0 \ubabb\ud558\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Low hardness may come from insufficient austenitizing temperature, short soaking time, slow cooling in large sections, surface decarburization, or improper tempering. The full cross-section must reach the correct austenitizing temperature, and the quenching and tempering process must be matched to the section size.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199800773","position":10,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199800773","name":"\ub2e8\uba74 \ud06c\uae30\uac00 D2 \uc5f4\ucc98\ub9ac\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub098\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes. Section size strongly affects heating, soaking, quenching, and tempering. Thick sections heat and cool more slowly than thin sections. Large D2 parts may need longer equalizing time and careful quench selection. Sudden section changes, sharp corners, and blind holes also increase the risk of distortion and cracking.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199818018","position":11,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199818018","name":"D2 \uacf5\uad6c\uac15\uc740 \uac00\uacf5 \ud6c4 \uc5f4\ucc98\ub9ac\uac00 \uac00\ub2a5\ud55c\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, D2 is commonly rough machined in an annealed condition and then heat-treated. However, heavy machining can introduce stress, so stress relief before hardening may be considered for large or complex parts. Final grinding should be controlled carefully after hardening to avoid grinding burns or surface cracks.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199818756","position":12,"url":"https:\/\/aobosteel.com\/d2-tool-steel-heat-treatment-guide\/#faq-question-1778199818756","name":"\uc544\uc624\ubcf4\uc81c\ucca0\uc740 D2 \uc5f4\ucc98\ub9ac \uc11c\ube44\uc2a4\ub97c \uc81c\uacf5\ud569\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. Aobo Steel supplies <strong>D2 \/ 1.2379 \/ SKD11 tool steel<\/strong> in an annealed condition, mainly as round bar and flat bar for bulk industrial orders. Final hardening, quenching, cryogenic treatment, and tempering should be performed by the customer\u2019s local heat-treatment facility.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-300x300.avif",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-768x768.avif",768,768,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-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":"D2 Tool Steel Heat Treatment Guide D2 tool steel is usually heat-treated by preheating to 1200\u20131250\u00b0F \/ 649\u2013677\u00b0C, austenitizing at 1795\u20131875\u00b0F \/ 980\u20131025\u00b0C, quenching by air, gas, oil, or salt bath, depending on section size, and double tempering at 900\u2013960\u00b0F \/ 480\u2013515\u00b0C. In many cold-work tooling applications, this process produces a hardness of about 58\u201360&hellip;","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-heat-treatment-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":"D2 Tool Steel Heat Treatment Guide D2 tool steel is usually heat-treated by preheating to 1200\u20131250\u00b0F \/ 649\u2013677\u00b0C, austenitizing at 1795\u20131875\u00b0F \/ 980\u20131025\u00b0C, quenching by air, gas, oil, or salt bath, depending on section size, and double tempering at 900\u2013960\u00b0F \/ 480\u2013515\u00b0C. In many cold-work tooling applications, this process produces a hardness of about 58\u201360&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11776","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=11776"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/11776\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media\/15078"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=11776"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}