{"id":13109,"date":"2026-02-27T17:30:07","date_gmt":"2026-02-27T09:30:07","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=13109"},"modified":"2026-06-28T16:34:33","modified_gmt":"2026-06-28T08:34:33","slug":"d2-steel-vs-4140","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/d2-steel-vs-4140\/","title":{"rendered":"D2\uac15\uacfc 4140\uac15: \ud2b9\uc131, \uacbd\ub3c4 \ubc0f \uc120\ud0dd \uac00\uc774\ub4dc | \uc544\uc624\ubcf4\uac15"},"content":{"rendered":"<section class=\"aobo-d2-4140-page\">\n  <style>\n    .aobo-d2-4140-page {\n      --aobo-blue: #0c56d0;\n      --aobo-blue-dark: #073b8e;\n      --aobo-blue-soft: #eaf2ff;\n      --aobo-blue-line: #c9dcff;\n      --aobo-border: #d7e5fb;\n      --aobo-text: #203044;\n      --aobo-muted: #617087;\n      --aobo-orange: #f59b23;\n      --aobo-white: #ffffff;\n      --aobo-shadow: 0 18px 45px rgba(12, 86, 208, 0.10);\n      font-family: Arial, Helvetica, sans-serif;\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-d2-4140-page * {\n      box-sizing: border-box;\n    }\n\n    .aobo-wrap {\n      max-width: 1180px;\n      margin: 0 auto;\n      padding: 0;\n    }\n\n    .aobo-hero {\n      background: linear-gradient(135deg, #ffffff 0%, #f7fbff 56%, #eaf2ff 100%);\n      border: 1px solid var(--aobo-border);\n      border-radius: 28px;\n      padding: 42px 38px;\n      margin-bottom: 24px;\n      box-shadow: var(--aobo-shadow);\n      overflow: hidden;\n      position: relative;\n    }\n\n    .aobo-hero::after {\n      content: \"\";\n      position: absolute;\n      right: -90px;\n      top: -90px;\n      width: 260px;\n      height: 260px;\n      border-radius: 50%;\n      background: rgba(12, 86, 208, 0.08);\n    }\n\n    .aobo-eyebrow {\n      display: inline-block;\n      margin-bottom: 12px;\n      padding: 6px 12px;\n      border-radius: 999px;\n      background: #fff7ed;\n      border: 1px solid #fde3bd;\n      color: var(--aobo-orange);\n      font-size: 14px;\n      font-weight: 700;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-hero h1 {\n      margin: 0 0 16px;\n      color: #082d6f;\n      font-size: clamp(34px, 4vw, 54px);\n      line-height: 1.05;\n      letter-spacing: -0.03em;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-hero p {\n      max-width: 920px;\n      margin: 0;\n      font-size: 17px;\n      color: #314158;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-text-link {\n      color: var(--aobo-blue) !important;\n      font-weight: 700;\n      text-decoration: none !important;\n      border-radius: 5px;\n      padding: 1px 3px;\n      margin: 0 -3px;\n      transition: color 0.2s ease, background 0.2s ease;\n    }\n\n    .aobo-text-link:hover {\n      color: var(--aobo-orange) !important;\n      background: var(--aobo-blue-soft) !important;\n    }\n\n    .aobo-btn {\n      display: inline-flex;\n      align-items: center;\n      justify-content: center;\n      text-align: center;\n      min-height: 42px;\n      padding: 10px 14px;\n      border-radius: 999px;\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:hover {\n      transform: translateY(-1px);\n    }\n\n    .aobo-btn-detail {\n      color: var(--aobo-blue-dark) !important;\n      background: #ffffff;\n      border: 1px solid var(--aobo-blue-line);\n    }\n\n    .aobo-btn-detail:hover {\n      background: var(--aobo-blue-soft);\n      border-color: var(--aobo-blue-line);\n      color: var(--aobo-blue-dark) !important;\n    }\n\n    .aobo-btn-inquiry {\n      color: #ffffff !important;\n      background: var(--aobo-blue);\n      border: 1px solid var(--aobo-blue);\n    }\n\n    .aobo-btn-inquiry:hover {\n      background: var(--aobo-blue-dark);\n      border-color: var(--aobo-blue-dark);\n      color: #ffffff !important;\n    }\n\n    .aobo-product-strip {\n      margin: 24px 0;\n      padding: 30px 34px 34px;\n      border-radius: 26px;\n      background: var(--aobo-white);\n      border: 1px solid var(--aobo-border);\n      box-shadow: 0 12px 32px rgba(12, 86, 208, 0.07);\n    }\n\n    .aobo-product-strip h2 {\n      margin: 0 0 10px;\n      color: #082d6f;\n      font-size: clamp(26px, 3vw, 36px);\n      line-height: 1.15;\n      letter-spacing: -0.02em;\n    }\n\n    .aobo-strip-intro {\n      margin: 0 0 22px;\n      max-width: 840px;\n      color: var(--aobo-muted);\n    }\n\n    .aobo-product-grid {\n      display: grid;\n      grid-template-columns: minmax(0, 1fr);\n      gap: 16px;\n    }\n\n    .aobo-product-card {\n      background: #ffffff;\n      border: 1px solid var(--aobo-border);\n      border-radius: 20px;\n      padding: 20px;\n      display: grid;\n      grid-template-columns: minmax(260px, 0.42fr) minmax(0, 1fr);\n      gap: 20px;\n      align-items: center;\n      transition: all 0.2s ease;\n    }\n\n    .aobo-product-card:hover {\n      transform: translateY(-3px);\n      box-shadow: 0 14px 30px rgba(12, 86, 208, 0.12);\n      border-color: rgba(12, 86, 208, 0.35);\n    }\n\n    .aobo-product-image {\n      width: 100%;\n      aspect-ratio: 16 \/ 9;\n      border-radius: 16px;\n      overflow: hidden;\n      border: 1px solid var(--aobo-border);\n      background: #f7fbff;\n    }\n\n    .aobo-product-image img {\n      display: block;\n      width: 100%;\n      height: 100%;\n      object-fit: cover;\n    }\n\n    .aobo-product-card h3 {\n      margin: 0 0 8px;\n      color: #082d6f;\n      font-size: 22px;\n      line-height: 1.3;\n    }\n\n    .aobo-card-note {\n      margin: 0 0 18px;\n      color: var(--aobo-muted);\n      font-size: 15.5px;\n    }\n\n    .aobo-buttons {\n      display: flex;\n      gap: 10px;\n      flex-wrap: wrap;\n    }\n\n    .aobo-article {\n      max-width: 1180px;\n      margin: 0 auto;\n    }\n\n    .aobo-article h2 {\n      margin: 44px 0 16px;\n      color: #082d6f;\n      font-size: 30px;\n      line-height: 1.25;\n    }\n\n    .aobo-article h3 {\n      margin: 30px 0 12px;\n      color: #082d6f;\n      font-size: 23px;\n      line-height: 1.3;\n    }\n\n    .aobo-article p {\n      margin: 0 0 18px;\n      font-size: 17px;\n      color: var(--aobo-text);\n    }\n\n    .aobo-article a {\n      color: var(--aobo-blue);\n      font-weight: 700;\n      text-decoration: none;\n      border-radius: 5px;\n      padding: 1px 3px;\n      margin: 0 -3px;\n      transition: color 0.2s ease, background 0.2s ease;\n    }\n\n    .aobo-article a:hover {\n      color: var(--aobo-orange);\n      background: var(--aobo-blue-soft);\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      border-collapse: collapse;\n      background: #ffffff;\n      min-width: 760px;\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;\n      color: var(--aobo-muted);\n    }\n\n    .aobo-choice-grid {\n      display: grid;\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n      gap: 16px;\n      margin: 24px 0 30px;\n    }\n\n    .aobo-choice-card {\n      border: 1px solid var(--aobo-border);\n      border-radius: 20px;\n      background: #ffffff;\n      padding: 22px;\n      box-shadow: 0 10px 26px rgba(12, 86, 208, 0.06);\n    }\n\n    .aobo-choice-card h3 {\n      margin-top: 0;\n    }\n\n    .aobo-choice-card p {\n      margin-bottom: 0;\n      color: var(--aobo-muted);\n    }\n\n    .aobo-related-pages {\n      margin: 38px 0 0;\n      padding: 30px 34px;\n      border: 1px solid var(--aobo-border);\n      border-radius: 26px;\n      background: #ffffff;\n      box-shadow: 0 12px 32px rgba(12, 86, 208, 0.07);\n    }\n\n    .aobo-related-pages h2 {\n      margin-top: 0;\n    }\n\n    .aobo-related-grid {\n      display: grid;\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n      gap: 14px;\n      margin-top: 18px;\n    }\n\n    .aobo-related-card {\n      display: block;\n      padding: 18px;\n      border: 1px solid var(--aobo-border);\n      border-radius: 16px;\n      background: #fbfdff;\n      text-decoration: none;\n      transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;\n    }\n\n    .aobo-related-card:hover {\n      transform: translateY(-2px);\n      border-color: rgba(12, 86, 208, 0.35);\n      box-shadow: 0 12px 26px rgba(12, 86, 208, 0.10);\n      background: #ffffff;\n    }\n\n    .aobo-related-card strong {\n      display: block;\n      margin-bottom: 6px;\n      color: #082d6f;\n      font-size: 17px;\n      line-height: 1.3;\n    }\n\n    .aobo-related-card span {\n      display: block;\n      color: var(--aobo-muted);\n      font-size: 15px;\n      line-height: 1.55;\n    }\n\n    .aobo-final-cta {\n      margin-top: 24px;\n      padding: 34px;\n      border-radius: 28px;\n      background: linear-gradient(135deg, #073b91 0%, #0c56d0 100%);\n      color: #ffffff;\n      box-shadow: 0 18px 45px rgba(12, 86, 208, 0.20);\n      display: flex;\n      align-items: center;\n      justify-content: space-between;\n      gap: 20px;\n      flex-wrap: wrap;\n    }\n\n    .aobo-final-cta h2 {\n      margin: 0 0 12px;\n      color: #ffffff;\n      font-size: 26px;\n    }\n\n    .aobo-final-cta p {\n      margin: 0;\n      color: rgba(255, 255, 255, 0.92);\n      max-width: 760px;\n    }\n\n    .aobo-final-cta .aobo-btn {\n      flex: 0 0 auto;\n      background: #ffffff;\n      border-color: #ffffff;\n      color: var(--aobo-blue) !important;\n    }\n\n    @media (max-width: 760px) {\n      .aobo-hero {\n        padding: 30px 22px;\n      }\n\n      .aobo-product-strip {\n        padding: 20px;\n      }\n\n      .aobo-product-card,\n      .aobo-choice-grid,\n      .aobo-related-grid {\n        grid-template-columns: 1fr;\n      }\n\n      .aobo-buttons {\n        flex-direction: column;\n      }\n\n      .aobo-article h2 {\n        font-size: 25px;\n      }\n    }\n  <\/style>\n\n  <div class=\"aobo-wrap\">\n    <header class=\"aobo-hero\">\n      <span class=\"aobo-eyebrow\">\uacf5\uad6c\uac15\uacfc \ud569\uae08\uac15 \uc911 \uc5b4\ub5a4 \uac83\uc744 \uc120\ud0dd\ud560\uc9c0 \uace0\ubbfc\uc774 \ub418\uc2dc\ub098\uc694?<\/span>\n      <h1>D2\uac15\uacfc 4140\uac15: \uc801\ud569\ud55c \uc18c\uc7ac \uc120\ud0dd \ubc29\ubc95<\/h1>\n      <p>\uc0ac\uc6a9 <a class=\"aobo-text-link\" href=\"https:\/\/aobosteel.com\/ko\/d2-steel-properties\/\">D2 \uacf5\uad6c\uac15<\/a> \uae08\ud615, \ud380\uce58, \uc804\ub2e8\ub0a0, \uc2ac\ub9ac\ud305 \ub098\uc774\ud504 \ubc0f \uc131\ud615 \uacf5\uad6c\uc640 \uac19\uc774 \ub9c8\ubaa8\uc5d0 \ubbfc\uac10\ud55c \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc5d0 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624. \uc0e4\ud504\ud2b8, \uae30\uc5b4, \ucc28\ucd95, \ubcfc\ud2b8, \uace0\uc815 \uc7a5\uce58 \ubc0f \uae30\uacc4 \ubd80\ud488\uc744 \ud3ec\ud568\ud55c \ud558\uc911 \uc9c0\uc9c0 \uae30\uacc4 \ubd80\ud488\uc5d0\ub294 4140 \ud569\uae08\uac15\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/p>\n    <\/header>\n\n    <section class=\"aobo-product-strip\" aria-label=\"\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc758 D2 \uacf5\uad6c\uac15 \uc81c\ud488\">\n      <h2>Aobo Steel\uc5d0\uc11c D2 \uacf5\uad6c\uac15\uc744 \uad6c\uc785\ud558\uc2e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/h2>\n      <p class=\"aobo-strip-intro\">\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 \ub0b4\ub9c8\ubaa8\uc131 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc6a9 D2 \uacf5\uad6c\uac15\uc744 \uacf5\uae09\ud569\ub2c8\ub2e4.<\/p>\n\n      <div class=\"aobo-product-grid\">\n        <article class=\"aobo-product-card\">\n          <div class=\"aobo-product-image\">\n            <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/01\/D2-steel.avif\" alt=\"Aobo Steel\uc5d0\uc11c \uacf5\uae09\ud558\ub294 D2 \uacf5\uad6c\uac15\" loading=\"lazy\">\n          <\/div>\n          <div>\n            <h3>D2 | 1.2379 | SKD11<\/h3>\n            <p class=\"aobo-card-note\">\uace0\ud0c4\uc18c, \uace0\ud06c\ub86c \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uac15\uc73c\ub85c, \uc7a5\uae30 \uc0dd\uc0b0\uc6a9 \uae08\ud615, \ud380\uce58, \uc804\ub2e8\ub0a0, \uc2ac\ub9ac\ud305 \ub098\uc774\ud504, \uc131\ud615 \uacf5\uad6c \ubc0f \ub9c8\ubaa8 \ud45c\uba74\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n            <div class=\"aobo-buttons\">\n              <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/ko\/d2-tool-steel\/\">\uc0c1\uc138 \uc815\ubcf4 \ubcf4\uae30<\/a>\n              <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">\ubb38\uc758 \ubcf4\ub0b4\uae30<\/a>\n            <\/div>\n          <\/div>\n        <\/article>\n      <\/div>\n    <\/section>\n\n    <main class=\"aobo-article\">\n      <p>D2\ub294 \ub354 \ub2e8\ub2e8\ud558\uace0 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub6f0\uc5b4\ub098\uc9c0\ub9cc, \ub354 \uc798 \ubd80\uc11c\uc9c0\ub294 \ub2e8\uc810\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. <a href=\"https:\/\/aobosteel.com\/ko\/blog\/4140-steel-properties\/\">4140<\/a> \ub354 \ub2e8\ub2e8\ud558\uace0 \uac00\uacf5\ud558\uae30 \uc27d\uc9c0\ub9cc, \ub0b4\ub9c8\ubaa8\uc131 \uba74\uc5d0\uc11c\ub294 D2\uc5d0 \ubbf8\uce58\uc9c0 \ubabb\ud569\ub2c8\ub2e4. \ubd80\ud488\uc758 \uc6a9\ub3c4, \ud558\uc911, \ub9c8\ubaa8 \ubc0f \uace0\uc7a5 \uc704\ud5d8\uc744 \uace0\ub824\ud558\uc5ec \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n      <h2>\ube60\ub978 \uc120\ud0dd \ud14c\uc774\ube14<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\uc694\uad6c \uc0ac\ud56d<\/th><th>\ub354 \ub098\uc740 \uc120\ud0dd<\/th><th>\uc774\uc720<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\ub0b4\ub9c8\ubaa8\uc131<\/td><td>\ub5142<\/td><td>\ub192\uc740 \ud0c4\uc18c \ud568\ub7c9\uacfc \ud06c\ub86c \ud568\ub7c9\uc740 \ub2e8\ub2e8\ud558\uace0 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub6f0\uc5b4\ub09c \ud0c4\ud654\ubb3c\uc744 \ud615\uc131\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc5e3\uc9c0 \uc720\uc9c0<\/td><td>\ub5142<\/td><td>\uc808\ub2e8, \uae4e\uae30, \ubaa8\uc11c\ub9ac \uc131\ud615\uc5d0 \ub354 \uc801\ud569\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc7a5\uae30 \uc0dd\uc0b0 \ud234\ub9c1<\/td><td>\ub5142<\/td><td>\ub9c8\ubaa8\uac00 \uace0\uc7a5 \ubc1c\uc0dd\uc744 \uc88c\uc6b0\ud560 \ub54c \uacf5\uad6c \uc218\uba85\uc774 \ub354 \uae38\uc5b4\uc9d1\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ub192\uc740 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c \uacbd\ub3c4<\/td><td>\ub5142<\/td><td>\uc77c\ubc18\uc801\uc73c\ub85c \uacbd\ub3c4 58~62 HRC \uc815\ub3c4\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc555\ucd95 \uacf5\uad6c \ud558\uc911<\/td><td>\ub5142<\/td><td>\ub192\uc740 \uacbd\ub3c4\uc640 \uc555\ucd95 \uac15\ub3c4\ub294 \uacf5\uad6c \uc555\ub825\uc744 \uc9c0\uc9c0\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ucda9\uaca9 \uc800\ud56d<\/td><td>4140<\/td><td>\uc778\uc131\uacfc \uc5f0\uc131\uc774 \ud5a5\uc0c1\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ud53c\ub85c \uc800\ud56d\uc131<\/td><td>4140<\/td><td>\ud68c\uc804 \ubc0f \uc8fc\uae30\uc801\uc778 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\ud488\uc5d0 \ub354 \uc801\ud569\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ube44\ud2c0\ub9bc \ubc0f \uad7d\ud798 \ud558\uc911<\/td><td>4140<\/td><td>\ub3d9\uc801 \uae30\uacc4\uc801 \uc2a4\ud2b8\ub808\uc2a4\uc5d0 \ub354 \uc801\ud569\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ucd95, \uae30\uc5b4, \ucc28\ucd95<\/td><td>4140<\/td><td>\ud558\uc911\uc744 \uacac\ub514\ub294 \uae30\uacc4 \ubd80\ud488\uc6a9\uc73c\ub85c \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uace0\uc815 \uc7a5\uce58 \ubc0f \uc9c0\uc9c0 \ubd80\ud488<\/td><td>4140<\/td><td>\uac00\uacf5\uc774 \ub354 \uc27d\uace0 \uacbd\uc81c\uc801\uc785\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uac00\uacf5 \ube44\uc6a9 \uc808\uac10<\/td><td>4140<\/td><td>\uac00\uacf5\uc131\uacfc \uc81c\uc870 \uc720\uc5f0\uc131\uc774 \ud5a5\uc0c1\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uad6c\uc870 \uc6a9\uc811 \ub610\ub294 \uc81c\uc791<\/td><td>4140<\/td><td>\uc6a9\uc811 \ub610\ub294 \uac00\uacf5 \ubd80\ud488\uc5d0 D2\ubcf4\ub2e4 \ub354 \uc2e4\uc6a9\uc801\uc785\ub2c8\ub2e4.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\uacf5\uad6c \ud45c\uba74\uc774 \ub9c8\ubaa8\ub418\ub294 \uacbd\uc6b0\uc5d0\ub294 D2\uac15\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \ub354 \ub098\uc740 \uc120\ud0dd\uc785\ub2c8\ub2e4. \ucda9\uaca9, \ud53c\ub85c, \uad7d\ud798 \ub610\ub294 \ube44\ud2c0\ub9bc\uc73c\ub85c \uc778\ud574 \ud30c\uc190\ub418\ub294 \uad6c\uc870 \ubd80\ud488\uc774\ub098 \uae30\uacc4 \ubd80\ud488\uc5d0\ub294 4140\uac15\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \ub354 \uc548\uc804\ud569\ub2c8\ub2e4.<\/p>\n\n      <h2>\uad6d\uc81c \ud559\uc810 \ud658\uc0b0\ud45c<\/h2>\n      <p>D2\uc640 4140\uc740 \ubaa8\ub450 AISI \uaddc\uaca9\uc785\ub2c8\ub2e4. \ub3d9\uc77c\ud55c \ud569\uae08\uc774 \ub2e4\ub978 \uaddc\uaca9\uc5d0\uc11c\ub294 \ub2e4\ub978 \ub4f1\uae09\uba85\uc73c\ub85c \uc0dd\uc0b0\ub429\ub2c8\ub2e4. \ud574\uc678\uc5d0\uc11c \ud569\uae08\uc744 \uc870\ub2ec\ud560 \ub54c\ub294 \uc0ac\uc591\uc11c\uc640 \ud654\ud559 \uc870\uc131\uc744 \ub300\uc870\ud558\uc5ec \ud655\uc778\ud558\uace0, \uc2e4\uc81c \ud654\ud559 \ubd84\uc11d\uc744 \uc99d\uba85\ud558\ub294 \uacf5\uc7a5 \uc2dc\ud5d8 \uc131\uc801\uc11c\ub97c \uc694\uccad\ud558\uc2ed\uc2dc\uc624.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\uae30\uc900<\/th><th>D2 \ub3d9\ub4f1<\/th><th>4140 \uc0c1\ub2f9<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>AISI\/SAE<\/td><td>\ub5142<\/td><td>4140<\/td><\/tr>\n            <tr><td>DIN\/EN<\/td><td>1.2379 \/ X153CrMoV12<\/td><td>1.7225 \/ 42CrMo4<\/td><\/tr>\n            <tr><td>\uc9c0\uc774\uc2a4<\/td><td>SKD11<\/td><td>SCM440<\/td><\/tr>\n            <tr><td>\uc601\uad6d<\/td><td>Cr12Mo1V1<\/td><td>42CrMo<\/td><\/tr>\n            <tr><td>BS<\/td><td>BD2<\/td><td>708M40<\/td><\/tr>\n            <tr><td>\uc544\ud504\ub178\ub974<\/td><td>Z160CDV12<\/td><td>42CD4<\/td><\/tr>\n            <tr><td>\uc720\uc5d4<\/td><td>\ud2f030402<\/td><td>G41400<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>D2 \ubc0f \uadf8\uc640 \uc720\uc0ac\ud55c \uc7ac\uc9c8\uc740 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uac15\uc785\ub2c8\ub2e4. 4140 \ubc0f \uadf8\uc640 \uc720\uc0ac\ud55c \uc7ac\uc9c8\uc740 \uad6c\uc870\uc6a9 \ud569\uae08\uac15\uc785\ub2c8\ub2e4. \uc774 \ub458\uc740 \uc11c\ub85c \ud638\ud658\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub9c8\ubaa8\uac00 \uc2ec\ud55c \uacf5\uad6c\uc5d0 42CrMo4 \ub610\ub294 SCM440\uc744 1.2379 \ub610\ub294 SKD11 \ub300\uc2e0 \uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/p>\n\n      <h2>\ud654\ud559\uc801 \uc870\uc131 \ubc0f \ud6a8\uacfc<\/h2>\n      <p>D2\ub294 \ud0c4\uc18c\uc640 \ud06c\ub86c \ud568\ub7c9\uc774 \ub192\uc544 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub6f0\uc5b4\ub0a9\ub2c8\ub2e4. 4140\uc740 \ud0c4\uc18c\uc640 \ud569\uae08 \ud568\ub7c9\uc774 \ub0ae\uc544 \uc778\uc131, \uc5f0\uc131, \uac00\uacf5\uc131 \ubc0f \ud53c\ub85c \uc800\ud56d\uc131\uc774 \ud5a5\uc0c1\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\uc694\uc18c<\/th><th>D2 \uacf5\uad6c\uac15 (% \uc911\ub7c9)<\/th><th>4140 \ud569\uae08\uac15 (% \uc911\ub7c9)<\/th><th>\uc131\ub2a5\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\ud0c4\uc18c(C)<\/td><td>1.40-1.60<\/td><td>0.38-0.43<\/td><td>D2\ub294 \ub354 \ub192\uc740 \uacbd\ub3c4\ub97c \uac00\uc9c0\uba70 \ub354 \ub9ce\uc740 \ud0c4\ud654\ubb3c\uc744 \ud615\uc131\ud569\ub2c8\ub2e4. 4140\uc740 \ub354 \ub098\uc740 \uc778\uc131\uacfc \uc5f0\uc131\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ud06c\ub86c(Cr)<\/td><td>11.00-13.00<\/td><td>0.80-1.10<\/td><td>D2\ub294 \ud6e8\uc52c \ub354 \uac15\ub825\ud55c \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc5bb\uc2b5\ub2c8\ub2e4. 4140\uc740 \uc8fc\ub85c \uacbd\ud654\uc131\uc744 \uc704\ud574 \ud06c\ub86c\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ubab0\ub9ac\ube0c\ub374(Mo)<\/td><td>0.70-1.20<\/td><td>0.15-0.25<\/td><td>D2\ub294 \ub450 \uc885\ub958\uc758 \uac15\uc7ac \ubaa8\ub450\uc5d0\uc11c \uacbd\ud654\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4. \ub610\ud55c \ubab0\ub9ac\ube0c\ub374(Mo)\uc744 \uc0ac\uc6a9\ud558\uc5ec \ud15c\ud37c\ub9c1 \ubc18\uc751\uc131\uacfc \ub0b4\ub9c8\ubaa8\uc131\uc744 \uac1c\uc120\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ub9dd\uac04(Mn)<\/td><td>&lt;=0.60<\/td><td>0.75-1.00<\/td><td>4140\uc740 \uacbd\ud654\uc131 \ubc0f \uac00\uacf5\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud574 \ub9dd\uac04 \ud568\ub7c9\uc774 \ub354 \ub192\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc2e4\ub9ac\ucf58(Si)<\/td><td>&lt;=0.60<\/td><td>0.15-0.35<\/td><td>\uac15\ub3c4 \ubc0f \ud0c8\uc0b0 \uae30\ub2a5\uc744 \uc9c0\uc6d0\ud558\uc9c0\ub9cc, \ub450 \uac15\uc885 \ubaa8\ub450\uc5d0\uc11c \uc8fc\uc694 \uc131\ub2a5 \ud5a5\uc0c1 \uc694\uc778\uc740 \uc544\ub2d9\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ubc14\ub098\ub4d0(V)<\/td><td>&lt;=1.10<\/td><td>\uc77c\ubc18\uc801\uc73c\ub85c \uba85\uc2dc\ub418\uc9c0 \uc54a\uc74c<\/td><td>D2\ub294 \ud0c4\ud654\ubb3c \uac15\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc778(P)<\/td><td>&lt;=0.030<\/td><td>&lt;=0.035<\/td><td>\ubd88\uc21c\ubb3c \uc6d0\uc18c\ub85c \uad00\ub9ac\ub429\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ud669(S)<\/td><td>&lt;=0.030<\/td><td>&lt;=0.040<\/td><td>\ubd88\uc21c\ubb3c \uc6d0\uc18c\ub85c \uad00\ub9ac\ub429\ub2c8\ub2e4.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>D2\uac15\uc740 \ud0c4\uc18c, \ud06c\ub86c, \ubc14\ub098\ub4d0 \uc131\ubd84 \ub355\ubd84\uc5d0 \ub6f0\uc5b4\ub09c \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc790\ub791\ud569\ub2c8\ub2e4. 4140\uac15\uc740 \ube44\uad50\uc801 \ub2e8\uc21c\ud55c \ud569\uae08 \uad6c\uc870\ub85c \uac15\ub3c4\uac00 \ub192\uace0 \uac00\uacf5\uc131\uc774 \ub6f0\uc5b4\ub098 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n      <h2>\uae30\uacc4\uc801 \uac70\ub3d9 \ube44\uad50<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\uc7ac\uc0b0<\/th><th>D2 \uacf5\uad6c\uac15<\/th><th>4140 \ud569\uae08\uac15<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uc77c\ubc18\uc801\uc778 \uacbd\ub3c4<\/td><td>\uc5f4\ucc98\ub9ac \ud6c4 58-62 HRC<\/td><td>\uacbd\ub3c4 28-34 HRC, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ucc98\ub9ac<\/td><\/tr>\n            <tr><td>\ub0b4\ub9c8\ubaa8\uc131<\/td><td>\ud6cc\ub96d\ud55c<\/td><td>\ubcf4\ud1b5\uc758<\/td><\/tr>\n            <tr><td>\uc5e3\uc9c0 \uc720\uc9c0<\/td><td>\ub192\uc740<\/td><td>\ubcf4\ud1b5\uc758<\/td><\/tr>\n            <tr><td>\uac15\uc778\ud568<\/td><td>\ub0ae\uc740<\/td><td>\ub192\uc740<\/td><\/tr>\n            <tr><td>\uc5f0\uc131<\/td><td>\ub9e4\uc6b0 \ub0ae\uc74c<\/td><td>\ub354 \ub098\uc740<\/td><\/tr>\n            <tr><td>\ud53c\ub85c \uc800\ud56d\uc131<\/td><td>\ub3d9\uc801 \ubd80\ud558\uc5d0 \ub300\ud55c \uc81c\ud55c \uc0ac\ud56d<\/td><td>\ub354 \ub098\uc740<\/td><\/tr>\n            <tr><td>\uc555\ucd95 \uac15\ub3c4<\/td><td>\ub9e4\uc6b0 \ub192\uc74c<\/td><td>\uc911\uc0c1\uae09<\/td><\/tr>\n            <tr><td>\uac00\uacf5\uc131<\/td><td>\ub354 \uac00\ub09c\ud55c<\/td><td>\ub354 \ub098\uc740<\/td><\/tr>\n            <tr><td>\ubd84\uc1c4 \uac00\ub2a5\uc131<\/td><td>\ub354 \uc5b4\ub824\uc6b4<\/td><td>\ub354 \uc26c\uc6b4<\/td><\/tr>\n            <tr><td>\uc6a9\uc811 \uc801\ud569\uc131<\/td><td>\uc77c\ubc18\uc801\uc778 \uacf5\uad6c \uc6a9\ub3c4\ub85c\ub294 \uad8c\uc7a5\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td><td>\uc801\uc808\ud55c \uc81c\uc5b4\ub97c \ud1b5\ud574 \ub354\uc6b1 \uc2e4\uc6a9\uc801\uc785\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc77c\ubc18\uc801\uc778 \uc2e4\ud328 \uc704\ud5d8<\/td><td>\uae68\uc9d0 \ub610\ub294 \ucde8\uc131 \ud30c\uad34<\/td><td>\ub9c8\ubaa8, \ubcc0\ud615 \ub610\ub294 \ud53c\ub85c \ud30c\uc190<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>D2\ub294 \ub9c8\ubaa8 \ud45c\uba74\uc73c\ub85c\ub294 \uc798 \uc791\ub3d9\ud558\uc9c0\ub9cc \uc0e4\ud504\ud2b8, \uae30\uc5b4, \uc561\uc2ac \ub610\ub294 \ucda9\uaca9 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\ud488\uc73c\ub85c\ub294 \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4.<\/p>\n      <p>4140\uac15\uc740 \uae30\uacc4 \ubd80\ud488\uc73c\ub85c\ub294 \uc131\ub2a5\uc774 \uc6b0\uc218\ud558\uc9c0\ub9cc, \uc808\uc0ad, \uc804\ub2e8 \ub610\ub294 \uc5f0\ub9c8 \uacf5\uad6c \ud45c\uba74\uc73c\ub85c \uc0ac\uc6a9\ud560 \uacbd\uc6b0 \ub9c8\ubaa8\uac00 \ub354 \ube68\ub9ac \uc9c4\ud589\ub429\ub2c8\ub2e4.<\/p>\n\n      <h2>\uc5f4\ucc98\ub9ac \ucc28\uc774<\/h2>\n      <p>D2\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub192\uc740 \uacbd\ub3c4, \ub0b4\ub9c8\ubaa8\uc131 \ubc0f \uc5f4\ucc98\ub9ac \ud6c4 \uce58\uc218 \uc548\uc815\uc131 \ub54c\ubb38\uc5d0 \uc120\ud0dd\ub429\ub2c8\ub2e4. \uacf5\uae30 \uacbd\ud654\ud615 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uac15\uc774\ubbc0\ub85c \uc561\uccb4 \ub2f4\uae08\uc9c8\uc774 \ud544\uc694\ud55c \uac15\uc7ac\ubcf4\ub2e4 \ubcc0\ud615\uc774 \uc801\uc740 \uac83\uc774 \uc77c\ubc18\uc801\uc785\ub2c8\ub2e4.<\/p>\n      <p>4140\uac15\uc744 \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1\ud558\uc5ec \uac15\ub3c4, \uc778\uc131 \ubc0f \ud53c\ub85c \uc800\ud56d\uc131\uc758 \uade0\ud615\uc744 \ub9de\ucd94\uc2ed\uc2dc\uc624. D2 \uacbd\ub3c4\ub97c \ubaa9\ud45c\ub85c \ud558\uc9c0 \ub9d0\uace0 \uc778\uc131\uc744 \uc6b0\uc120\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\uce21\uba74<\/th><th>D2 \uacf5\uad6c\uac15<\/th><th>4140 \ud569\uae08\uac15<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uacbd\ud654\ud615<\/td><td>\uacf5\uae30 \uacbd\ud654<\/td><td>\uc77c\ubc18\uc801\uc73c\ub85c \uc624\uc77c \ub610\ub294 \uc561\uccb4 \ub2f4\uae08\uc9c8<\/td><\/tr>\n            <tr><td>\uc8fc\uc694 \uc5f4\ucc98\ub9ac \ubaa9\ud45c<\/td><td>\ub0b4\ub9c8\ubaa8\uc131 \ubc0f \uacbd\ub3c4<\/td><td>\uac15\ub3c4\uc640 \ub0b4\uad6c\uc131<\/td><\/tr>\n            <tr><td>\ucc98\ub9ac \ud6c4 \uc77c\ubc18\uc801\uc778 \uacbd\ub3c4<\/td><td>58-62 HRC<\/td><td>\uacbd\ub3c4 28~34 HRC, \ud15c\ud37c\ub9c1 \uc628\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d0<\/td><\/tr>\n            <tr><td>\uc77c\ubc18\uc801\uc778 \uc0ac\uc6a9 \ubc29\ubc95<\/td><td>\ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c<\/td><td>\uae30\uacc4 \ubd80\ud488<\/td><\/tr>\n            <tr><td>\uc65c\uace1 \uacbd\ud5a5<\/td><td>\uc0c1\ub300\uc801\uc73c\ub85c \ub0ae\uc74c<\/td><td>\uc561\uccb4 \ub2f4\uae08\uc9c8\uc5d0\uc11c D2\ubcf4\ub2e4 \ub192\uc74c<\/td><\/tr>\n            <tr><td>\ub2f4\uae08\uc9c8 \ubaa9\uc801<\/td><td>\ucde8\uc131\uc744 \uc904\uc774\uace0 \uacbd\ub3c4\ub97c \uc548\uc815\ud654\ud569\ub2c8\ub2e4.<\/td><td>\uac15\ub3c4\uc640 \uc778\uc131 \uade0\ud615\uc744 \uc870\uc808\ud558\uc138\uc694<\/td><\/tr>\n            <tr><td>\uc5f4\ucc98\ub9ac \uc704\ud5d8<\/td><td>\ucde8\uc131, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8, \uade0\uc5f4<\/td><td>\ubd80\uc801\uc808\ud558\uac8c \ucc98\ub9ac\ud558\uba74 \uc778\uc131\uc774 \ub5a8\uc5b4\uc9d0<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>D2 \uacf5\uad6c\uc758 \ucd5c\uc885 \uc131\ub2a5\uc740 \uacbd\ub3c4, \ud15c\ud37c\ub9c1 \uc870\uac74, \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc81c\uc5b4 \ubc0f \ubaa8\uc11c\ub9ac \uc9c0\uc9c0\ub825\uc5d0 \ud06c\uac8c \uc88c\uc6b0\ub429\ub2c8\ub2e4.<\/p>\n      <p>D2 \uc5f4\ucc98\ub9ac \uad00\ub828 \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \ub2f9\uc0ac \uc6f9\uc0ac\uc774\ud2b8\ub97c \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. <a href=\"https:\/\/aobosteel.com\/ko\/d2-tool-steel-heat-treatment-guide\/\">D2 \uacf5\uad6c\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/a>.<\/p>\n\n      <h2>\uac00\uacf5\uc131 \ubc0f \uc81c\uc791\uc131<\/h2>\n      <p>4140\uac15\uc740 \uac00\uacf5, \uc6a9\uc811 \ubc0f \uc81c\uc791\uc774 \uc6a9\uc774\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \uae30\uacc4 \ubd80\ud488, \uace0\uc815 \uc7a5\uce58, \uc9c0\uc9c0 \ubd80\ud488, \uc2dc\uc81c\ud488 \ubc0f \uc18c\ub7c9 \uc0dd\uc0b0\uc6a9 \uacf5\uad6c\uc5d0 \ub354\uc6b1 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n      <p>D2\ub294 \ud0c4\ud654\ubb3c \ud568\ub7c9\uc774 \ub192\uc544 \uac00\uacf5 \ubc0f \uc5f0\uc0ad\uc774 \ub354 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \uacf5\uad6c \ub9c8\ubaa8, \ub9c8\ubb34\ub9ac \uc791\uc5c5 \uc2dc\uac04, \uc5f0\uc0ad \ub09c\uc774\ub3c4 \ubc0f \ucd1d \uac00\uacf5 \ube44\uc6a9\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\ucc98\ub9ac \uc694\uc18c<\/th><th>D2 \uacf5\uad6c\uac15<\/th><th>4140 \ud569\uae08\uac15<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uac00\uacf5\uc131<\/td><td>\ub0ae\uc740<\/td><td>\ubcf4\ud1b5\uc5d0\uc11c \uc88b\uc74c<\/td><\/tr>\n            <tr><td>\ub178\uac00\ub2e4 \ub09c\uc774\ub3c4<\/td><td>\ub192\uc740<\/td><td>\ub0ae\ucd94\ub2e4<\/td><\/tr>\n            <tr><td>\uc6a9\uc811<\/td><td>\uc77c\ubc18\uc801\uc778 \uacf5\uad6c \uc6a9\ub3c4\ub85c\ub294 \uad8c\uc7a5\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td><td>\uc801\uc808\ud55c \uc81c\uc5b4\uac00 \uc788\ub2e4\uba74 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc81c\uc870 \uc720\uc5f0\uc131<\/td><td>\uc81c\ud55c\ub41c<\/td><td>\ub354 \ub098\uc740<\/td><\/tr>\n            <tr><td>\ucc98\ub9ac \ube44\uc6a9<\/td><td>\ub354 \ub192\uc740<\/td><td>\ub0ae\ucd94\ub2e4<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>D2\uac15\uc740 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc6b0\uc218\ud558\uc5ec \uac00\uacf5 \ubc0f \uc5f0\uc0ad \ube44\uc6a9\uc774 \ub354 \ub192\ub354\ub77c\ub3c4 \uadf8\ub9cc\ud55c \uac00\uce58\uac00 \uc788\uc744 \ub54c \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4. \ub9c8\ubaa8\uac00 \uc8fc\uc694 \ubb38\uc81c\uac00 \uc544\ub2cc \uacbd\uc6b0\uc5d0\ub294 4140\uac15\uc774 \ub354 \uacbd\uc81c\uc801\uc778 \uc120\ud0dd\uc778 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>\uc808\uc0ad \ub9e4\uac1c\ubcc0\uc218 \ubc0f \uac00\uacf5 \uad00\ub828 \uc81c\uc548 \uc0ac\ud56d\uc740 \ub2f9\uc0ac \uc6f9\uc0ac\uc774\ud2b8\ub97c \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. <a href=\"https:\/\/aobosteel.com\/ko\/d2-tool-steel-machining-guide\/\">D2 \uacf5\uad6c\uac15 \uac00\uacf5 \uac00\uc774\ub4dc<\/a>.<\/p>\n\n      <h2>D2\uc640 4140\uc740 \uc11c\ub85c \ub300\uccb4\ud560 \uc218 \uc788\ub098\uc694?<\/h2>\n      <p>D2\uc640 4140\uc740 \uc11c\ub85c \ub2e4\ub978 \uae30\ub2a5\uc744 \uc218\ud589\ud558\uae30 \ub54c\ubb38\uc5d0 \uac70\uc758 \ub300\uccb4\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n      <h3>D2\uac00 4140\uc744 \ub300\uccb4\ud560 \uc218 \uc788\ub098\uc694?<\/h3>\n      <p>\uc544\ub2c8\uc694. D2\uac15\uc740 \ucd95, \uae30\uc5b4, \ucc28\ucd95, \ubcfc\ud2b8, \uad6c\ub3d9\ucd95, \ud38c\ud504 \ubd80\ud488 \ub610\ub294 \uae30\ud0c0 \ub3d9\uc801 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\ud488\uc5d0 \uc0ac\uc6a9\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubd80\ud488\uc5d0\ub294 \uc778\uc131, \uc5f0\uc131 \ubc0f \ud53c\ub85c \uc800\ud56d\uc131\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. D2\uac15\uc740 4140\uac15\ubcf4\ub2e4 \uacbd\ub3c4\uac00 \ub192\uc744 \uc218 \uc788\uc9c0\ub9cc \ucda9\uaca9\uc774\ub098 \ubc18\ubcf5 \ud558\uc911\uc744 \ubc1b\uc744 \ub54c \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\uac70\ub098 \ud30c\uc190\ub420 \uac00\ub2a5\uc131\uc774 \ub354 \ud07d\ub2c8\ub2e4.<\/p>\n      <p>D2\ub294 \ubd80\ud488\uc774 \uacf5\uad6c \ud45c\uba74\uc73c\ub85c \uc0ac\uc6a9\ub418\uace0 \ub9c8\ubaa8\uac00 \uc8fc\uc694 \uace0\uc7a5 \uc6d0\uc778\uc774 \ub418\ub294 \uacbd\uc6b0\uc5d0\ub9cc 4140\uc744 \ub300\uccb4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc77c\ubd80 \ube0c\ub808\uc774\ud06c \uacf5\uad6c, \ubc31\uc5c5 \ube14\ub85d, \uc9c0\uc9c0 \uacf5\uad6c \ub610\ub294 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c \ubd80\ud488\uacfc \uac19\uc774 \uc778\uc131\ubcf4\ub2e4 \ub9c8\ubaa8 \uc218\uba85\uc774 \ub354 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4.<\/p>\n      <h3>4140\uc774 D2\ub97c \ub300\uccb4\ud560 \uc218 \uc788\ub098\uc694?<\/h3>\n      <p>4140\uac15\uc740 \uc18c\ub7c9 \uc0dd\uc0b0\uc774\ub098 \ub9c8\ubaa8\uac00 \uc801\uc740 \uacf5\uad6c\uc5d0\ub9cc \uc801\ud569\ud569\ub2c8\ub2e4. \uc2dc\uc81c\ud488, \uace0\uc815\uad6c, \uc9c0\uc9c0 \ube14\ub85d, \ubcf4\uac15\ud310, \ub4dc\ub9b4\ub9c1 \uc9c0\uadf8 \ubc0f \ub9c8\ubaa8\uac00 \uc2ec\ud558\uc9c0 \uc54a\uc740 \uc18c\ub7c9 \uc0dd\uc0b0 \uacf5\uad6c\uc5d0 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\uacf5\uc774 \uc6a9\uc774\ud558\uace0 \uc77c\ubc18\uc801\uc73c\ub85c \ube44\uc6a9\uc774 \uc800\ub834\ud569\ub2c8\ub2e4.<\/p>\n      <p>\uc7a5\uc2dc\uac04 \ube14\ub7ad\ud0b9, \ud380\uce6d, \uc2ac\ub9ac\ud305, \uc804\ub2e8 \ub610\ub294 \uc5f0\ub9c8 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0 4140\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub9c8\ubaa8\uac00 \ub108\ubb34 \ube68\ub9ac \uc9c4\ud589\ub429\ub2c8\ub2e4.<\/p>\n\n      <h2>\ube44\uc6a9 \ubc0f \ucc98\ub9ac \ucc28\uc774<\/h2>\n      <p>D2\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc6d0\uc790\uc7ac \ubc0f \uac00\uacf5 \ube44\uc6a9\uc774 \ub354 \ub192\uc2b5\ub2c8\ub2e4. 4140\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ucd08\uae30 \ube44\uc6a9\uc774 \ub354 \ub0ae\uace0 \uac00\uacf5\uc131\uc774 \ub354 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\ube44\uc6a9 \uc694\uc18c<\/th><th>D2 \uacf5\uad6c\uac15<\/th><th>4140 \ud569\uae08\uac15<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uc6d0\uc790\uc7ac \ube44\uc6a9<\/td><td>\ub354 \ub192\uc740<\/td><td>\ub0ae\ucd94\ub2e4<\/td><\/tr>\n            <tr><td>\uac00\uacf5 \ube44\uc6a9<\/td><td>\ub354 \ub192\uc740<\/td><td>\ub0ae\ucd94\ub2e4<\/td><\/tr>\n            <tr><td>\ubd84\uc1c4 \ube44\uc6a9<\/td><td>\ub354 \ub192\uc740<\/td><td>\ub0ae\ucd94\ub2e4<\/td><\/tr>\n            <tr><td>\uc5f4\ucc98\ub9ac \ubbfc\uac10\ub3c4<\/td><td>\ub354 \ub192\uc740<\/td><td>\ubcf4\ud1b5\uc758<\/td><\/tr>\n            <tr><td>\uc81c\uc870 \uc720\uc5f0\uc131<\/td><td>\ub0ae\ucd94\ub2e4<\/td><td>\ub354 \ub192\uc740<\/td><\/tr>\n            <tr><td>\ub9c8\ubaa8\uc5d0 \ub530\ub978 \uacf5\uad6c \uc218\uba85<\/td><td>\ub354 \ub098\uc740<\/td><td>\ub0ae\ucd94\ub2e4<\/td><\/tr>\n            <tr><td>\ucd5c\uc801\uc758 \ube44\uc6a9 \uc2dc\ub098\ub9ac\uc624<\/td><td>\uc7a5\uae30 \ub9c8\ubaa8 \uacf5\uad6c<\/td><td>\uae30\uacc4 \ubd80\ud488 \ubc0f \uc18c\ub7c9 \uc0dd\uc0b0\uc6a9 \uacf5\uad6c<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>4140\uac15\uc740 \uacf5\uae09\uc5c5\uccb4\uc640 \uc6a9\ub3c4\uc5d0 \ub530\ub77c \ub178\uba40\ub77c\uc774\uc9d5, \uc5b4\ub2d0\ub9c1 \ub610\ub294 \ud01c\uce6d \ubc0f \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\ub85c \uc81c\uacf5\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uae30\uacc4 \ubd80\ud488\uc758 \uac00\uacf5 \ub610\ub294 \uc5f4\ucc98\ub9ac \ub2e8\uacc4\ub97c \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>D2\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uac00\uacf5\uc744 \uc704\ud574 \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\ub85c \uacf5\uae09\ub429\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc758 \uacbd\ub3c4\ub97c \uc5bb\uc73c\ub824\uba74 \ud669\uc0ad \uac00\uacf5 \ud6c4 \ucd5c\uc885 \uc5f4\ucc98\ub9ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc815\ubc00 \uacf5\uad6c\uc758 \uacbd\uc6b0 \uc0b0\ud654, \ubcc0\ud615 \ubc0f \ucd5c\uc885 \uacbd\ub3c4\ub97c \uc81c\uc5b4\ud558\uae30 \uc704\ud574 \uc9c4\uacf5 \uc5f4\ucc98\ub9ac\uac00 \uc77c\ubc18\uc801\uc73c\ub85c \uc120\ud638\ub429\ub2c8\ub2e4.<\/p>\n      <p>\uae30\uacc4 \ubd80\ud488, \uace0\uc815 \uc7a5\uce58, \uc2dc\uc81c\ud488 \ubc0f \uc9c0\uc6d0 \uad6c\uc131 \uc694\uc18c\uc758 \uacbd\uc6b0 4140\uac15\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \ub354 \uacbd\uc81c\uc801\uc785\ub2c8\ub2e4.<\/p>\n      <p>\uc7a5\uae30 \uc0dd\uc0b0\uc6a9 \uacf5\uad6c\uc758 \uacbd\uc6b0, D2\ub294 \uacf5\uad6c \uc218\uba85 \uc5f0\uc7a5, \uc7ac\uc5f0\uc0ad \uac10\uc18c, \uadf8\ub9ac\uace0 \ub354 \uae34 \uc0dd\uc0b0 \uc8fc\uae30 \ub3d9\uc548 \uce58\uc218 \uc548\uc815\uc131 \uc720\uc9c0\ub97c \ud1b5\ud574 \ucd1d \ube44\uc6a9\uc744 \uc808\uac10\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>\ub9c8\ubaa8\uac00 \uc2ec\ud558\uc9c0 \uc54a\uc73c\uba74 4140 \uac15\uc7ac\ub97c \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624. \ub9c8\ubaa8 \uc218\uba85\uc774 \uae38\uc5b4 \uac00\uacf5 \ube44\uc6a9\uc774 \ub354 \ub192\ub354\ub77c\ub3c4 \uadf8\ub9cc\ud55c \uac00\uce58\uac00 \uc788\ub2e4\uba74 D2 \uac15\uc7ac\ub97c \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n      <h2>D2 \ub610\ub294 4140\uc744 \uc0ac\uc6a9\ud558\uc9c0 \ub9d0\uc544\uc57c \ud560 \uacbd\uc6b0<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\uc801\uc6a9 \uc870\uac74<\/th><th>D2\ub97c \ud53c\ud558\uc138\uc694<\/th><th>4140\uc744 \ud53c\ud558\uc138\uc694<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\uc0e4\ud504\ud2b8, \uae30\uc5b4, \ucc28\ucd95 \ubc0f \ub3d9\ub825 \ubd80\ud488<\/td><td>\uc608<\/td><td>\uc544\ub2c8\uc694<\/td><\/tr>\n            <tr><td>\ucda9\uaca9 \ub610\ub294 \ud558\uc911<\/td><td>\uc608<\/td><td>\ubcf4\ud1b5\uc740 \uadf8\ub807\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ubc18\ubcf5\uc801\uc778 \uad7d\ud798 \ub610\ub294 \ube44\ud2c0\ub9bc<\/td><td>\uc608<\/td><td>\uc544\ub2c8\uc694<\/td><\/tr>\n            <tr><td>\ud53c\ub85c \ud558\uc911\uc744 \ubc1b\ub294 \uae30\uacc4 \ubd80\ud488<\/td><td>\uc608<\/td><td>\uc544\ub2c8\uc694<\/td><\/tr>\n            <tr><td>\uad6c\uc870\uc6a9 \uc6a9\uc811<\/td><td>\uc608<\/td><td>\ubcf4\ud1b5\uc740 \uadf8\ub807\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc7a5\uae30 \uc5f0\uc0ad \uacf5\uad6c<\/td><td>\uc544\ub2c8\uc694<\/td><td>\uc608<\/td><\/tr>\n            <tr><td>\uc808\ub2e8 \ub610\ub294 \uc804\ub2e8 \ub0a0 \uc720\uc9c0<\/td><td>\uc544\ub2c8\uc694<\/td><td>\uc608<\/td><\/tr>\n            <tr><td>\ub192\uc740 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c \uacbd\ub3c4<\/td><td>\uc544\ub2c8\uc694<\/td><td>\uc608<\/td><\/tr>\n            <tr><td>\uc5c4\uaca9\ud55c \ub9c8\ubaa8 \uae30\ubc18 \uce58\uc218 \uc548\uc815\uc131<\/td><td>\uc544\ub2c8\uc694<\/td><td>\uc608<\/td><\/tr>\n            <tr><td>\uc800\ube44\uc6a9 \uc2dc\uc81c\ud488 \ub610\ub294 \uace0\uc815\uc7a5\uce58<\/td><td>\ubcf4\ud1b5 \uadf8\ub807\uc2b5\ub2c8\ub2e4<\/td><td>\uc544\ub2c8\uc694<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\uc778\uc131\uacfc \ud53c\ub85c \uc800\ud56d\uc131\uc774 \uac00\uc7a5 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0\ub294 D2\ub97c \uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/p>\n      <p>\ub9c8\ubaa8 \uc800\ud56d\uc131\uc774\ub098 \ub0a0 \uc720\uc9c0\ub825\uc774 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0\ub294 4140\uc744 \uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/p>\n\n      <h2>\uc2e4\uc81c \uc120\ud0dd \uc0ac\ub840<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>\uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/th><th>\ucd94\ucc9c \uac15\ucca0<\/th><th>\uc774\uc720<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>\ube14\ub7ad\ud0b9 \ub2e4\uc774<\/td><td>\ub5142<\/td><td>\ub0b4\ub9c8\ubaa8\uc131\uacfc \ub0a0 \uc720\uc9c0\ub825\uc740 \uc911\uc694\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ud380\uce58<\/td><td>\ub5142<\/td><td>\ub192\uc740 \uacbd\ub3c4\uc640 \uc555\ucd95 \uac15\ub3c4\ub294 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc2ac\ub9ac\ud305 \ub098\uc774\ud504<\/td><td>\ub5142<\/td><td>\ub0a0 \uc720\uc9c0\ub825\uacfc \ub0b4\ub9c8\ubaa8\uc131\uc740 \uacf5\uad6c \uc218\uba85\uc744 \uc88c\uc6b0\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc804\ub2e8\ub0a0<\/td><td>\ub5142<\/td><td>\ub9c8\ubaa8\uac00 \uc2ec\ud55c \uc808\ub2e8 \ubc0f \uc804\ub2e8 \uc870\uac74\uc5d0 \ub354 \uc801\ud569\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc0e4\ud504\ud2b8<\/td><td>4140<\/td><td>\uc778\uc131, \ud53c\ub85c \uc800\ud56d\uc131 \ubc0f \ube44\ud2c0\ub9bc \uac15\ub3c4\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uae30\uc5b4<\/td><td>4140<\/td><td>\ub3d9\uc801 \ud558\uc911 \ubc0f \ud53c\ub85c \uc800\ud56d\uc131\uc5d0 \ub354 \uc801\ud569\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ucc28\ucd95<\/td><td>4140<\/td><td>\uc5f0\uc131\uacfc \ud558\uc911 \uc9c0\uc9c0 \uc2e0\ub8b0\uc131\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uace0\uac15\ub3c4 \ubcfc\ud2b8<\/td><td>4140<\/td><td>\uac15\ub3c4\uc640 \ub0b4\uad6c\uc131\uc758 \uade0\ud615\uc774 \ub354\uc6b1 \ud5a5\uc0c1\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uace0\uc815\ubb3c<\/td><td>4140<\/td><td>\uac00\uacf5\ud558\uae30 \uc27d\uace0 \uc77c\ubc18\uc801\uc73c\ub85c \ub354 \uacbd\uc81c\uc801\uc785\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc9c0\uc9c0\ud310<\/td><td>4140 \ub610\ub294 D2<\/td><td>4140\uc740 \uc9c0\uc9c0\uc6a9\uc73c\ub85c \uc0ac\uc6a9\ud558\uba70, \ub9c8\ubaa8\uac00 \uc2ec\ud55c \uacbd\uc6b0\uc5d0\ub9cc D2\ub97c \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/td><\/tr>\n            <tr><td>\ub2e8\uae30 \uc0dd\uc0b0 \ube0c\ub808\uc774\ud06c \uacf5\uad6c<\/td><td>4140 \ub610\ub294 D2<\/td><td>\ube44\uc6a9 \uc808\uac10\uc744 \uc704\ud574 4140\uc744, \ub354 \uae34 \uc218\uba85\uc744 \uc704\ud574 D2\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc7a5\uae30 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c<\/td><td>\ub5142<\/td><td>\ub9c8\ubaa8 \ud658\uacbd\uc5d0\uc11c \uacf5\uad6c \uc218\uba85\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h2>\ucd5c\uc885 \uc120\uc815 \uc694\uc57d<\/h2>\n      <div class=\"aobo-choice-grid\">\n        <article class=\"aobo-choice-card\">\n          <h3>\ub9c8\ubaa8\uac00 \uc2ec\ud55c \uacf5\uad6c\uc5d0\ub294 D2\ub97c \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624.<\/h3>\n          <p>D2\uac15\uc740 \uae08\ud615, \ud380\uce58, \uc804\ub2e8\ub0a0, \uc2ac\ub9ac\ud305 \ub098\uc774\ud504 \ubc0f \uc131\ud615 \uacf5\uad6c\uc5d0\uc11c \ub9c8\ubaa8, \ub0a0 \uc720\uc9c0, \ub192\uc740 \ub0c9\uac04 \uac00\uacf5 \uacbd\ub3c4 \ubc0f \uce58\uc218 \uc190\uc2e4 \ud30c\uc190\uc5d0 \uac00\uc7a5 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n        <\/article>\n        <article class=\"aobo-choice-card\">\n          <h3>\ud558\uc911\uc744 \uc9c0\ud0f1\ud558\ub294 \ubd80\ud488\uc5d0\ub294 4140 \uc7ac\uc9c8\uc744 \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624.<\/h3>\n          <p>4140\uac15\uc740 \ud2b9\ud788 \uc0e4\ud504\ud2b8, \uae30\uc5b4, \ucc28\ucd95, \ubcfc\ud2b8, \uace0\uc815\uad6c \ubc0f \uae30\uacc4 \ubd80\ud488\uc5d0\uc11c \ucda9\uaca9, \ud53c\ub85c, \uad7d\ud798, \ube44\ud2c0\ub9bc \ub610\ub294 \uad6c\uc870\uc801 \ud558\uc911\uc73c\ub85c \uc778\ud574 \ubd80\ud488\uc774 \ud30c\uc190\ub420 \ub54c \uac00\uc7a5 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n        <\/article>\n      <\/div>\n      <div class=\"aobo-note-box\">\n        <p>D2\uc640 4140\uc740 \uc11c\ub85c \ub2e4\ub978 \uc6a9\ub3c4\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. D2\ub294 \ub9c8\ubaa8\uc5d0 \ubbfc\uac10\ud55c \uacf5\uad6c\uc5d0 \uac00\uc7a5 \uc801\ud569\ud558\uace0, 4140\uc740 \ud558\uc911\uc744 \uacac\ub38c\uc57c \ud558\ub294 \ubd80\ud488\uc5d0 \uac00\uc7a5 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n      <\/div>\n\n      <section class=\"aobo-related-pages\" aria-label=\"\uad00\ub828 D2 \uacf5\uad6c\uac15 \ube44\uad50 \ud398\uc774\uc9c0\">\n        <h2>\uad00\ub828 \ud398\uc774\uc9c0<\/h2>\n        <div class=\"aobo-related-grid\">\n          <a class=\"aobo-related-card\" href=\"https:\/\/aobosteel.com\/ko\/d2-vs-m2-tool-steel\/\">\n            <strong>D2 vs M2<\/strong>\n            <span>\ub0c9\uac04 \uac00\uacf5 \ub9c8\ubaa8 \uc800\ud56d\uc131\uacfc \uace0\uc18d \uc808\uc0ad \uc131\ub2a5\uc758 \ube44\uad50.<\/span>\n          <\/a>\n          <a class=\"aobo-related-card\" href=\"https:\/\/aobosteel.com\/ko\/o1-vs-d2-tool-steel\/\">\n            <strong>\ub5142 vs \uc6241<\/strong>\n            <span>\uacf5\uae30 \uacbd\ud654\uac15\uc758 \ub0b4\ub9c8\ubaa8\uc131\uacfc \uac00\uacf5\uc131\uc774 \ub354 \ub6f0\uc5b4\ub09c \uc720\uacbd\ud654\uac15\uc758 \ube44\uad50.<\/span>\n          <\/a>\n          <a class=\"aobo-related-card\" href=\"https:\/\/aobosteel.com\/ko\/d2-vs-a2-tool-steel\/\">\n            <strong>D2 \ub300 A2<\/strong>\n            <span>\ub3d9\uc77c\ud55c \ub0c9\uac04 \uac00\uacf5 \uc81c\ud488\uad70 \ub0b4\uc5d0\uc11c \ucd5c\ub300 \ub9c8\ubaa8 \uc218\uba85\uacfc \ub354 \ub192\uc740 \uc778\uc131 \uac04\uc758 \uade0\ud615.<\/span>\n          <\/a>\n          <a class=\"aobo-related-card\" href=\"https:\/\/aobosteel.com\/ko\/dc53-vs-d2-tool-steel\/\">\n            <strong>D2 vs DC53<\/strong>\n            <span>\uc77c\ubc18 D2 \uac15\uc7ac\uc640 \uc778\uc131 \ubc0f \uacbd\ub3c4\uac00 \ud5a5\uc0c1\ub41c \uace0\uae09 \ub4f1\uae09 \uac15\uc7ac\uc758 \ube44\uad50.<\/span>\n          <\/a>\n          <a class=\"aobo-related-card\" href=\"https:\/\/aobosteel.com\/ko\/d2-vs-d3-tool-steel\/\">\n            <strong>D2 vs D3<\/strong>\n            <span>\ub0b4\ub9c8\ubaa8\uc131\uc774 \ub192\uc744\uc218\ub85d \uce58\uc218 \uc548\uc815\uc131\uacfc \uc778\uc131\uc774 \uc6b0\uc218\ud569\ub2c8\ub2e4.<\/span>\n          <\/a>\n          <a class=\"aobo-related-card\" href=\"https:\/\/aobosteel.com\/ko\/d2-steel-vs-440c\/\">\n            <strong>D2 vs 440C<\/strong>\n            <span>\ub0b4\ub9c8\ubaa8\uc131\uc740 \ub0b4\uc2dd\uc131\uc744 \uac16\ucd98 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \ube44\uad50\ub429\ub2c8\ub2e4.<\/span>\n          <\/a>\n          <a class=\"aobo-related-card\" href=\"https:\/\/aobosteel.com\/ko\/d2-vs-s7-tool-steel\/\">\n            <strong>D2 vs S7<\/strong>\n            <span>\ub0b4\ub9c8\ubaa8\uc131\uacfc \ucda9\uaca9 \ubc29\uc9c0 \ub4f1\uae09\uc758 \ucc28\uc774.<\/span>\n          <\/a>\n        <\/div>\n      <\/section>\n    <\/main>\n\n    <section class=\"aobo-final-cta\">\n      <div>\n        <h2>\ub9c8\ubaa8\uac00 \uc2ec\ud55c \uacf5\uad6c\uc5d0 D2 \uacf5\uad6c\uac15\uc774 \ud544\uc694\ud558\uc2e0\uac00\uc694?<\/h2>\n        <p>\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 \uae08\ud615, \ud380\uce58, \uc804\ub2e8\ub0a0, \uc2ac\ub9ac\ud305 \ub098\uc774\ud504 \ubc0f \uae30\ud0c0 \uc5f0\ub9c8 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc5d0 \uc0ac\uc6a9\ub418\ub294 D2 \uacf5\uad6c\uac15\uc744 \uacf5\uae09\ud569\ub2c8\ub2e4. \ud544\uc694\ud55c \ud06c\uae30, \uc218\ub7c9, \uacf5\ucc28 \ubc0f \uc6a9\ub3c4\ub97c \uc54c\ub824\uc8fc\uc2dc\uba74 \uc801\ud569\ud55c \uacf5\uae09\ucc98\ub97c \uc81c\uc548\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n      <\/div>\n      <a class=\"aobo-btn popmake-16052\" href=\"javascript:void(0);\">\ubb38\uc758 \ubcf4\ub0b4\uae30<\/a>\n    <\/section>\n  <\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Tool Steel vs Alloy Steel Selection D2 vs 4140 Steel: How to Choose the Right Material Use D2 tool steel for wear-critical cold-work tooling such as dies, punches, shear blades, slitting knives, and forming tools. Use 4140 alloy steel for load-bearing mechanical parts, including shafts, gears, axles, bolts, fixtures, and machine components. D2 Tool Steel [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15011,"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-13109","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 vs 4140 Steel: Properties, Hardness, and Selection Guide | Aobo Steel<\/title>\n<meta name=\"description\" content=\"D2 runs 58\u201362 HRC for dies, punches, and slitting knives. 4140 reaches 28\u201334 HRC for shafts, gears, and dynamic parts. Includes grade equivalents and selection table.\" \/>\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-steel-vs-4140\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"D2 vs 4140 Steel: Properties, Hardness, and Selection Guide | Aobo Steel\" \/>\n<meta property=\"og:description\" content=\"D2 runs 58\u201362 HRC for dies, punches, and slitting knives. 4140 reaches 28\u201334 HRC for shafts, gears, and dynamic parts. Includes grade equivalents and selection table.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/d2-steel-vs-4140\/\" \/>\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=\"2026-06-28T08:34:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.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=\"9\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"D2 vs 4140 Steel: Properties, Hardness, and Selection Guide | Aobo Steel\",\"datePublished\":\"2026-02-27T09:30:07+00:00\",\"dateModified\":\"2026-06-28T08:34:33+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/\"},\"wordCount\":1763,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/D2-VS-4140.avif\",\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/\",\"name\":\"D2 vs 4140 Steel: Properties, Hardness, and Selection Guide | Aobo Steel\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/D2-VS-4140.avif\",\"datePublished\":\"2026-02-27T09:30:07+00:00\",\"dateModified\":\"2026-06-28T08:34:33+00:00\",\"description\":\"D2 runs 58\u201362 HRC for dies, punches, and slitting knives. 4140 reaches 28\u201334 HRC for shafts, gears, and dynamic parts. Includes grade equivalents and selection table.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/#breadcrumb\"},\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ko-KR\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/#primaryimage\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/D2-VS-4140.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/D2-VS-4140.avif\",\"width\":1254,\"height\":1254},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/d2-steel-vs-4140\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"D2 vs 4140 Steel: Properties, Hardness, and Selection Guide | Aobo Steel\"}]},{\"@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\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"D2\uac15\uacfc 4140\uac15: \ud2b9\uc131, \uacbd\ub3c4 \ubc0f \uc120\ud0dd \uac00\uc774\ub4dc | \uc544\uc624\ubcf4\uac15","description":"D2\uac15\uc740 \ub2e4\uc774, \ud380\uce58, \uc2ac\ub9ac\ud305 \ub098\uc774\ud504\uc5d0 58~62 HRC\uc758 \uacbd\ub3c4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. 4140\uac15\uc740 \uc0e4\ud504\ud2b8, \uae30\uc5b4, \ub3d9\ub825 \ubd80\ud488\uc5d0 28~34 HRC\uc758 \uacbd\ub3c4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub4f1\uae09\ubcc4 \uc0c1\uc751\ud45c \ubc0f \uc120\ud0dd\ud45c\uac00 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\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-steel-vs-4140\/","og_locale":"ko_KR","og_type":"article","og_title":"D2 vs 4140 Steel: Properties, Hardness, and Selection Guide | Aobo Steel","og_description":"D2 runs 58\u201362 HRC for dies, punches, and slitting knives. 4140 reaches 28\u201334 HRC for shafts, gears, and dynamic parts. Includes grade equivalents and selection table.","og_url":"https:\/\/aobosteel.com\/ko\/d2-steel-vs-4140\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-06-28T08:34:33+00:00","og_image":[{"width":1254,"height":1254,"url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04":"9\ubd84"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/d2-steel-vs-4140\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/d2-steel-vs-4140\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"D2 vs 4140 Steel: Properties, Hardness, and Selection Guide | Aobo Steel","datePublished":"2026-02-27T09:30:07+00:00","dateModified":"2026-06-28T08:34:33+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/d2-steel-vs-4140\/"},"wordCount":1763,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"image":{"@id":"https:\/\/aobosteel.com\/d2-steel-vs-4140\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif","inLanguage":"ko-KR"},{"@type":"WebPage","@id":"https:\/\/aobosteel.com\/d2-steel-vs-4140\/","url":"https:\/\/aobosteel.com\/d2-steel-vs-4140\/","name":"D2\uac15\uacfc 4140\uac15: \ud2b9\uc131, \uacbd\ub3c4 \ubc0f \uc120\ud0dd \uac00\uc774\ub4dc | \uc544\uc624\ubcf4\uac15","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/aobosteel.com\/d2-steel-vs-4140\/#primaryimage"},"image":{"@id":"https:\/\/aobosteel.com\/d2-steel-vs-4140\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif","datePublished":"2026-02-27T09:30:07+00:00","dateModified":"2026-06-28T08:34:33+00:00","description":"D2\uac15\uc740 \ub2e4\uc774, \ud380\uce58, \uc2ac\ub9ac\ud305 \ub098\uc774\ud504\uc5d0 58~62 HRC\uc758 \uacbd\ub3c4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. 4140\uac15\uc740 \uc0e4\ud504\ud2b8, \uae30\uc5b4, \ub3d9\ub825 \ubd80\ud488\uc5d0 28~34 HRC\uc758 \uacbd\ub3c4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub4f1\uae09\ubcc4 \uc0c1\uc751\ud45c \ubc0f \uc120\ud0dd\ud45c\uac00 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/d2-steel-vs-4140\/#breadcrumb"},"inLanguage":"ko-KR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/d2-steel-vs-4140\/"]}]},{"@type":"ImageObject","inLanguage":"ko-KR","@id":"https:\/\/aobosteel.com\/d2-steel-vs-4140\/#primaryimage","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif","width":1254,"height":1254},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/d2-steel-vs-4140\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"D2 vs 4140 Steel: Properties, Hardness, and Selection Guide | Aobo Steel"}]},{"@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\/"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140-300x300.avif",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140-768x768.avif",768,768,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140-12x12.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":"Tool Steel vs Alloy Steel Selection D2 vs 4140 Steel: How to Choose the Right Material Use D2 tool steel for wear-critical cold-work tooling such as dies, punches, shear blades, slitting knives, and forming tools. Use 4140 alloy steel for load-bearing mechanical parts, including shafts, gears, axles, bolts, fixtures, and machine components. D2 Tool Steel&hellip;","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif",1254,1254,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif",1254,1254,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/D2-VS-4140-12x12.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":"Tool Steel vs Alloy Steel Selection D2 vs 4140 Steel: How to Choose the Right Material Use D2 tool steel for wear-critical cold-work tooling such as dies, punches, shear blades, slitting knives, and forming tools. Use 4140 alloy steel for load-bearing mechanical parts, including shafts, gears, axles, bolts, fixtures, and machine components. D2 Tool Steel&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/13109","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=13109"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/13109\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media\/15011"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=13109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}