{"id":15314,"date":"2026-05-14T08:48:04","date_gmt":"2026-05-14T00:48:04","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=15314"},"modified":"2026-06-25T15:17:11","modified_gmt":"2026-06-25T07:17:11","slug":"o1-steel-hardness","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/o1-steel-hardness\/","title":{"rendered":"O1\uac15 \uacbd\ub3c4: \uc5b4\ub2d0\ub9c1, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ucc98\ub9ac \ud6c4 HRC \uac00\uc774\ub4dc"},"content":{"rendered":"<section class=\"aobo-o1-hardness-page\">\n  <style>\n    .aobo-o1-hardness-page {\n      --aobo-blue: #0c56d0;\n      --aobo-blue-dark: #073b8e;\n      --aobo-blue-soft: #eaf2ff;\n      --aobo-border: #d7e5fb;\n      --aobo-text: #203044;\n      --aobo-muted: #617087;\n      --aobo-orange: #f59b23;\n      --aobo-white: #ffffff;\n      --aobo-shadow: 0 18px 45px rgba(12, 86, 208, 0.10);\n      --aobo-page-width: 1180px;\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-o1-hardness-page * {\n      box-sizing: border-box;\n    }\n\n    .aobo-wrap {\n      max-width: var(--aobo-page-width);\n      margin: 0 auto;\n      padding: 0;\n    }\n\n    .aobo-hero {\n      background: linear-gradient(135deg, #ffffff 0%, #f7fbff 58%, #eaf2ff 100%);\n      border: 1px solid var(--aobo-border);\n      border-radius: 26px;\n      padding: 42px 38px;\n      margin-bottom: 30px;\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: 1.06;\n      letter-spacing: 0;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-hero p {\n      max-width: 940px;\n      margin: 0;\n      font-size: 17px;\n      color: #314158;\n      position: relative;\n      z-index: 2;\n    }\n\n    .aobo-supply-block {\n      display: grid;\n      grid-template-columns: auto minmax(0, 1fr);\n      align-items: center;\n      gap: 24px;\n      margin: 0 0 30px;\n      border: 1px solid var(--aobo-border);\n      border-radius: 24px;\n      background: #ffffff;\n      box-shadow: 0 14px 36px rgba(12, 86, 208, 0.09);\n      overflow: hidden;\n      padding: 24px;\n    }\n\n    .aobo-supply-image {\n      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 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      letter-spacing: 0;\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    .aobo-supply-content a {\n      color: var(--aobo-blue);\n      font-weight: 700;\n      text-decoration: none;\n    }\n\n    .aobo-article a:hover,\n    .aobo-supply-content a:hover {\n      color: var(--aobo-orange);\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: var(--aobo-white);\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 {\n      margin: 18px 0 28px;\n      padding: 18px 20px;\n      border: 1px solid #fde3bd;\n      border-left: 5px solid var(--aobo-orange);\n      border-radius: 16px;\n      background: #fffaf3;\n      color: #6e4a18;\n      font-size: 15px;\n    }\n\n    .aobo-cta {\n      margin-top: 34px;\n      padding: 32px 34px;\n      border-radius: 24px;\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-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-cta p {\n      margin: 0;\n      color: rgba(255, 255, 255, 0.92);\n      max-width: 820px;\n      font-size: 16px;\n    }\n\n    .aobo-cta-actions {\n      display: flex;\n      gap: 10px;\n      flex-wrap: wrap;\n      align-items: center;\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 18px;\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-primary {\n      background: var(--aobo-blue);\n      color: #ffffff !important;\n      border: 1px solid var(--aobo-blue);\n    }\n\n    .aobo-btn-primary:hover {\n      background: var(--aobo-blue-dark);\n      color: #ffffff !important;\n      transform: translateY(-1px);\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-secondary:hover {\n      background: var(--aobo-blue-soft);\n      color: var(--aobo-blue-dark) !important;\n      transform: translateY(-1px);\n    }\n\n    .aobo-cta .aobo-btn-primary {\n      background: #ffffff;\n      border-color: #ffffff;\n      color: var(--aobo-blue) !important;\n    }\n\n    .aobo-cta .aobo-btn-primary:hover {\n      background: #fff7ed;\n      color: var(--aobo-blue-dark) !important;\n    }\n\n    .aobo-cta .aobo-btn-secondary {\n      background: transparent;\n      border-color: rgba(255, 255, 255, 0.75);\n      color: #ffffff !important;\n    }\n\n    .aobo-cta .aobo-btn-secondary:hover {\n      background: rgba(255, 255, 255, 0.14);\n      border-color: #ffffff;\n      color: #ffffff !important;\n    }\n\n    @media (max-width: 760px) {\n      .aobo-hero {\n        padding: 30px 22px;\n        border-radius: 22px;\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-actions .aobo-btn,\n      .aobo-cta-actions,\n      .aobo-cta-actions .aobo-btn {\n        width: 100%;\n      }\n\n      .aobo-supply-actions,\n      .aobo-cta-actions {\n        flex-direction: column;\n        align-items: stretch;\n      }\n\n      .aobo-cta {\n        padding: 26px 22px;\n        border-radius: 22px;\n      }\n    }\n  <\/style>\n\n  <div class=\"aobo-wrap\">\n    <header class=\"aobo-hero\">\n      <h1>O1\uac15\uc758 \uacbd\ub3c4: \uc5b4\ub2d0\ub9c1, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ucc98\ub9ac \ud6c4 HRC \ubc94\uc704<\/h1>\n      <p>O1 \uacf5\uad6c\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\ub85c \uacf5\uae09\ub418\uba70, \uacbd\ub3c4\ub294 \ubcf4\ud1b5 217 HBW\ub97c \ub118\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc624\uc77c \ud01c\uce6d \ud6c4\uc5d0\ub294 \ud01c\uce6d \uc9c1\ud6c4 \uc0c1\ud0dc\uc5d0\uc11c \uc57d 64~65 HRC\uc758 \uacbd\ub3c4\ub97c \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \uc0ac\uc6a9 \uc2dc\uc5d0\ub294 O1\uac15\uc5d0 \uacbd\ud654 \ubc0f \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub97c \ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \uacbd\ub3c4\ub294 \uc57d 58~60 HRC\uc774\uba70, \uc2e4\uc81c \uc0ac\uc6a9 \ubc94\uc704\ub294 56~62 HRC\ub85c \ub354 \ub113\uc2b5\ub2c8\ub2e4.<\/p>\n    <\/header>\n\n    <section class=\"aobo-supply-block\">\n      <div class=\"aobo-supply-image\">\n        <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/o1-steel.avif\" alt=\"O1 \uacf5\uad6c\uac15 \ubd09\uc7ac\" loading=\"lazy\">\n      <\/div>\n      <div class=\"aobo-supply-content\">\n        <p>\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 \ub300\ub7c9 \uc0b0\uc5c5 \uc8fc\ubb38\uc5d0 \ub9de\ucdb0 O1 \/ 1.2510 \/ SKS3 \uacf5\uad6c\uac15 \uc6d0\ud615\ubd09 \ubc0f \ud3c9\uac15\uc744 \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\ub85c \uacf5\uae09\ud569\ub2c8\ub2e4. \ud544\uc694\ud55c \uaddc\uaca9, \uc218\ub7c9, \uacf5\ucc28 \ubc0f \uc6a9\ub3c4\ub97c \uc54c\ub824\uc8fc\uc2ed\uc2dc\uc624.<\/p>\n        <div class=\"aobo-supply-actions\">\n          <a class=\"aobo-btn aobo-btn-primary popmake-16052\" href=\"javascript:void(0);\">\ubb38\uc758 \ubcf4\ub0b4\uae30<\/a>\n          <a class=\"aobo-btn aobo-btn-secondary\" href=\"https:\/\/aobosteel.com\/ko\/o1-tool-steel\/\">O1 \uacf5\uad6c\uac15 \ubcf4\uae30<\/a>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <main class=\"aobo-article\">\n      <h2>O1\uac15 \uacbd\ub3c4 \uac04\ub7b5 \ub370\uc774\ud130<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr><th>\uc0c1\ud0dc<\/th><th>\uc77c\ubc18\uc801\uc778 \uacbd\ub3c4<\/th><th>\uc2e4\uc9c8\uc801\uc778 \uc758\ubbf8<\/th><\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>\uc5b4\ub2d0\ub9c1 \uc870\uac74<\/td><td>\u2264 217 HBW<\/td><td>\uacbd\ud654 \uc804 \uac00\uacf5\uc744 \uc704\ud55c \uacf5\uae09 \uc870\uac74<\/td><\/tr>\n            <tr><td>\uc624\uc77c \ub2f4\uae08\uc9c8 \ud6c4 \ub2f4\uae08\uc9c8\ub41c \uc0c1\ud0dc<\/td><td>\uc57d 64~65 HRC<\/td><td>\uc5f4\ucc98\ub9ac \uc804 \ucd5c\ub300 \uacbd\ub3c4\uc774\ubbc0\ub85c \ubc14\ub85c \uc0ac\uc6a9\ud558\uae30\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ud15c\ud37c\ub9c1 \ud6c4 \uc77c\ubc18\uc801\uc778 \uc791\uc5c5 \uacbd\ub3c4<\/td><td>58\u201360 HRC<\/td><td>\ub9ce\uc740 O1 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc758 \ud45c\uc900 \ubc94\uc704<\/td><\/tr>\n            <tr><td>\uc2e4\uc6a9\uc801\uc778 \uac15\ud654 \ubc94\uc704<\/td><td>56\u201362 HRC<\/td><td>\ub9c8\ubaa8, \ucda9\uaca9, \ub2e8\uba74 \ud06c\uae30 \ubc0f \uacf5\uad6c \uc124\uacc4\uc5d0 \ub530\ub77c \uc120\ud0dd\ub428<\/td><\/tr>\n            <tr><td>\uace0\uacbd\ub3c4 \uacf5\uad6c \ubc94\uc704<\/td><td>60\u201362 HRC<\/td><td>\ub0a0 \uc720\uc9c0\ub825\uacfc \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub354 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ub0ae\uc740 \uacbd\ub3c4\uc758 \uacf5\uad6c \ubc94\uc704<\/td><td>56~58 HRC<\/td><td>\uc778\uc131\uacfc \uade0\uc5f4 \uc800\ud56d\uc131\uc774 \ub354 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h2>O1\uac15\uc758 \uc6a9\ub3c4\ubcc4 \uacbd\ub3c4<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr><th>\uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/th><th>\uad8c\uc7a5 \uacbd\ub3c4<\/th><th>\uacf5\ud559\uc801 \uc774\uc720<\/th><\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>\ube14\ub7ad\ud0b9 \ub2e4\uc774 \ubc0f \ud380\uce58<\/td><td>58\u201360 HRC<\/td><td>\ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac \uc720\uc9c0\ub825\uc774 \uc6b0\uc218\ud558\uace0 \uce69 \ubc1c\uc0dd \uc704\ud5d8\uc774 \ub0ae\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ud2b8\ub9ac\ubc0d \ud380\uce58<\/td><td>58\u201360 HRC<\/td><td>\uc77c\ubc18\uc801\uc778 \ub0c9\uac04 \uac00\uacf5 \uc791\uc5c5\uc5d0\uc11c \uc548\uc815\uc801\uc778 \uc808\uc0ad \uc131\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uce74\uc6b4\ud130\ud380\uce58 \ubc0f \uc774\uc81d\ud130<\/td><td>60\u201362 HRC<\/td><td>\ud45c\uba74 \uc555\ub825 \ubc0f \ub9c8\ubaa8\uc5d0 \ub300\ud55c \ub354 \ub192\uc740 \uacbd\ub3c4<\/td><\/tr>\n            <tr><td>\ubca4\ub529 \ub2e4\uc774<\/td><td>58\u201360 HRC<\/td><td>\uc131\ud615 \uc555\ub825\uc5d0 \ub300\ud55c \uade0\ud615 \uc7a1\ud78c \uacbd\ub3c4\uc640 \uc778\uc131<\/td><\/tr>\n            <tr><td>\ub4dc\ub85c\uc789 \ub2e4\uc774<\/td><td>58\u201362 HRC<\/td><td>\uc2ac\ub77c\uc774\ub529 \ub9c8\ubaa8 \ubc0f \uacf5\uad6c \uc9c0\uc9c0\ub825\uc744 \uae30\uc900\uc73c\ub85c \uc120\uc815\ub428<\/td><\/tr>\n            <tr><td>\uc804\ubc29 \ub0c9\uac04 \uc555\ucd9c \ud380\uce58<\/td><td>60\u201362 HRC<\/td><td>\uc555\ucd95 \ud558\uc911 \ubc0f \ub0b4\ub9c8\ubaa8\uc131\uc5d0 \ub300\ud55c \uacbd\ub3c4\uac00 \ub354 \ub192\uc2b5\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ud380\uce58 \uc0dd\ud06c\uc640 \ub9e8\ub4dc\ub9b4<\/td><td>56~58 HRC<\/td><td>\uacbd\ub3c4\uac00 \ub0ae\uc744\uc218\ub85d \ud558\uc911\uc744 \ubc1b\uc744 \ub54c \uc778\uc131\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ub0c9\uac04 \ub2e8\uc870\uc6a9 \uc808\ub2e8\ub0a0<\/td><td>60\u201364 HRC<\/td><td>\uacbd\ub3c4\uac00 \ub192\uc744\uc218\ub85d \ucda9\uaca9\uc774 \uc81c\uc5b4\ub420 \ub54c \uc808\uc0ad\ub0a0 \uc720\uc9c0\ub825\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc5e0\ubcf4\uc2f1 \ub2e4\uc774<\/td><td>58\u201361 HRC<\/td><td>\ud45c\uba74 \uc120\uba85\ub3c4, \ub0b4\ub9c8\ubaa8\uc131 \ubc0f \uade0\uc5f4 \uc800\ud56d\uc131\uc758 \uade0\ud615\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc8fc\ud654 \uc81c\uc791\uc6a9 \uc8fc\ud615<\/td><td>58\u201360 HRC<\/td><td>\uacbd\ub3c4\uc640 \ud30c\uad34 \uc800\ud56d\uc131 \uc0ac\uc774\uc758 \uc2e4\uc9c8\uc801\uc778 \uade0\ud615<\/td><\/tr>\n            <tr><td>\uc791\uc740 \ucf5c\ub4dc\ub864<\/td><td>60\u201362 HRC<\/td><td>\uc624\uc77c \uc18d\uc5d0\uc11c \ud6a8\uacfc\uc801\uc73c\ub85c \uacbd\ud654\ub420 \uc218 \uc788\ub294 \ubd80\ubd84\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc815\ubc00 \uac8c\uc774\uc9c0 \ubc0f \uce21\uc815 \ub3c4\uad6c<\/td><td>58\u201362 HRC<\/td><td>\ub192\uc740 \uacbd\ub3c4\uc640 \uc6b0\uc218\ud55c \uce58\uc218 \uc81c\uc5b4 \uae30\ub2a5<\/td><\/tr>\n            <tr><td>\uc2ac\ub77c\uc774\ub529 \ubd80\ud488, \ubd80\uc2f1, \ucea0<\/td><td>50\u201358 HRC<\/td><td>\ud558\uc911, \ub9c8\ubaa8 \ubc0f \uc778\uc131 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \ub2e4\ub985\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc57d 1700 MPa\uc758 \uac15\ub3c4\uac00 \ud544\uc694\ud55c \uc555\ub825\ud310<\/td><td>58\u201361 HRC<\/td><td>\ub192\uc740 \uac15\ub3c4\uc640 \ud45c\uba74 \uc800\ud56d\uc131<\/td><\/tr>\n            <tr><td>\uc57d 1400 MPa\uc758 \uac15\ub3c4\uac00 \ud544\uc694\ud55c \uc555\ub825\ud310<\/td><td>50\u201354 HRC<\/td><td>\ub0ae\uc740 \uacbd\ub3c4\ub85c \ub354 \ub098\uc740 \ud558\uc911 \ud761\uc218\ub825\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uc57d 1100 MPa\uc758 \uac15\ub3c4\uac00 \ud544\uc694\ud55c \uc555\ub825\ud310<\/td><td>40\u201344 HRC<\/td><td>\uc808\uc0ad \uacbd\ub3c4\ubcf4\ub2e4 \uc778\uc131\uc774 \ub354 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\ub0c9\uac04 \uac00\uacf5\uacfc \uac19\uc774 \uacbd\ub3c4\uac00 \ubd88\ud655\uc2e4\ud55c \uc6a9\ub3c4\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 58~60 HRC\uac00 \uac00\uc7a5 \uc2e4\uc6a9\uc801\uc778 \uc2dc\uc791\uc810\uc785\ub2c8\ub2e4. 62 HRC \uc774\uc0c1\uc758 \uacbd\ub3c4\ub294 O1\uac15\uc774 \uae68\uc9c0\uac70\ub098 \uac08\ub77c\uc9c0\uae30 \uc26c\uc6cc \uc0ac\uc6a9\uc5d0 \uc8fc\uc758\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n      <h2>O1\uac15 \ub2f4\uae08\uc9c8 \uacbd\ub3c4\ud45c<\/h2>\n      <p>\uc624\uc77c \ud01c\uce6d \ud6c4, O1\uc740 \ub0b4\ubd80 \uc751\ub825\uc744 \uc904\uc774\uace0 \ucd5c\uc885 \uacbd\ub3c4\ub97c \uc870\uc808\ud558\uae30 \uc704\ud574 \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub97c \ud574\uc57c \ud569\ub2c8\ub2e4. O1\uc740 D2\uc640 \uac19\uc740 2\ucc28 \uacbd\ud654 \ud604\uc0c1\uc744 \ubcf4\uc774\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ud15c\ud37c\ub9c1 \uc628\ub3c4\uac00 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c O1\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc5f0\ud654\ub429\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr><th>\ud15c\ud37c\ub9c1 \uc628\ub3c4<\/th><th>\ub300\ub7b5\uc801\uc778 \uacbd\ub3c4<\/th><\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>\uac08\uc99d\uc774 \ud574\uc18c\ub41c \uac83\ucc98\ub7fc<\/td><td>64\u201365 HRC<\/td><\/tr>\n            <tr><td>300\u00b0F \/ 150\u00b0C<\/td><td>\uc57d 63 HRC<\/td><\/tr>\n            <tr><td>\ud654\uc528 350\ub3c4 \/ \uc12d\uc528 177\ub3c4<\/td><td>62\u201363 HRC<\/td><\/tr>\n            <tr><td>400\u00b0F \/ 204\u00b0C<\/td><td>\uc57d 62 HRC<\/td><\/tr>\n            <tr><td>500\u00b0F \/ 260\u00b0C<\/td><td>\uc57d 60 HRC<\/td><\/tr>\n            <tr><td>600\u00b0F \/ 316\u00b0C<\/td><td>\uc57d 57 HRC<\/td><\/tr>\n            <tr><td>700\u00b0F \/ 371\u00b0C<\/td><td>\uc57d 53 HRC<\/td><\/tr>\n            <tr><td>800\u00b0F \/ 427\u00b0C<\/td><td>\uc57d 50 HRC<\/td><\/tr>\n            <tr><td>900\u00b0F \/ 482\u00b0C<\/td><td>\uc57d 47 HRC<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <div class=\"aobo-note\">\uc774 \uac12\ub4e4\uc740 \uc77c\ubc18\uc801\uc778 \ucc38\uace0\uce58\uc785\ub2c8\ub2e4. \uc2e4\uc81c \uacbd\ub3c4\ub294 \uc624\uc2a4\ud14c\ub098\uc774\uc9d5 \uc628\ub3c4, \uc720\uc9c0 \uc2dc\uac04, \uc624\uc77c \ud01c\uce6d \uc18d\ub3c4, \uc2dc\ud3b8 \ud06c\uae30, \ud15c\ud37c\ub9c1 \uc2dc\uac04 \ubc0f \uc2dc\ud5d8 \uc704\uce58\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/div>\n      <p>\ub300\ubd80\ubd84\uc758 O1 \uacf5\uad6c\uc5d0 \ub300\ud55c \uc77c\ubc18\uc801\uc778 \ud15c\ud37c\ub9c1 \ubc94\uc704\ub294 \uc57d 150~260\u00b0C(300~500\u00b0F)\uc785\ub2c8\ub2e4. \uc774 \ubc94\uc704\ub294 O1\uc744 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc5d0 \uc720\uc6a9\ud55c \uace0\uacbd\ub3c4 \uc0c1\ud0dc\ub85c \uc720\uc9c0\ud569\ub2c8\ub2e4. \ud15c\ud37c\ub9c1 \uc628\ub3c4\uac00 \ub192\uc744\uc218\ub85d \uc778\uc131\uc740 \ud5a5\uc0c1\ub418\uc9c0\ub9cc \uacbd\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc740 \uac10\uc18c\ud569\ub2c8\ub2e4. \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \ub2e4\uc74c\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. <a href=\"https:\/\/aobosteel.com\/ko\/o1-tool-steel-heat-treatment\/\">O1 \uacf5\uad6c\uac15\uc744 \uc5f4\ucc98\ub9ac\ud558\ub294 \ubc29\ubc95<\/a>.<\/p>\n\n      <h2>O1\uac15\uc758 \uc5b4\ub2d0\ub9c1 \uacbd\ub3c4 \ubc0f \uac00\uacf5 \ud2b9\uc131<\/h2>\n      <p>O1\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\ub85c \uacf5\uae09\ub418\uba70, \uacbd\ub3c4\ub294 \ubcf4\ud1b5 \uc57d 217 HBW\ub97c \ub118\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc0c1\ud0dc\ub294 \uacbd\ud654 \ucc98\ub9ac \uc804 \uae30\uacc4 \uac00\uacf5, \ub4dc\ub9b4\ub9c1, \ubc00\ub9c1, \uc120\uc0ad \ubc0f \uc5f0\uc0ad \uc791\uc5c5\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n      <p>D2\uc640 \ube44\uad50\ud588\uc744 \ub54c, O1\uc740 \ud569\uae08 \uce74\ubc14\uc774\ub4dc\uc758 \ubd80\ud53c \ubd84\uc728\uc774 \ub0ae\uc544 \uac00\uacf5\uc774 \ub354 \uc6a9\uc774\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc774\uc720\ub85c O1\uc740 \ubc94\uc6a9 \uacf5\uad6c, \uac8c\uc774\uc9c0, \uc9c0\uadf8, \ud380\uce58 \ubc0f \uc18c\ud615 \ub2e4\uc774\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n      <p>\uc8fc\uc694 \uac00\uacf5 \uc791\uc5c5\uc740 \uacbd\ud654 \uc804\uc5d0 \uc644\ub8cc\ud574\uc57c \ud569\ub2c8\ub2e4. O1\uc774 \uacbd\ud654\ub41c \ud6c4\uc5d0\ub294 \uc77c\ubc18\uc801\uc778 \uac00\uacf5 \uc791\uc5c5\uc774 \uc5b4\ub824\uc6cc\uc9c0\uba70, \ub9c8\ubb34\ub9ac \uc791\uc5c5\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc5f0\uc0ad, \uc5f0\ub9c8, EDM \ub610\ub294 \uae30\ud0c0 \ud6c4\uacbd\ud654 \uc791\uc5c5\uc73c\ub85c \uc81c\ud55c\ub429\ub2c8\ub2e4.<\/p>\n\n      <h2>O1\uac15 \uacbd\ub3c4\uc640 \uad00\ub828\ub41c \uace0\uc7a5 \uc704\ud5d8<\/h2>\n      <p>O1 \ubd88\ub7c9\uc740 \uc885\uc885 \uacfc\ub3c4\ud55c \uacbd\ub3c4, \uc5f4\ucc98\ub9ac \uc81c\uc5b4 \ubd88\ub7c9, \uc751\ub825 \uc9d1\uc911 \ub610\ub294 \uacbd\ud654 \ud6c4 \ud45c\uba74 \uc190\uc0c1\uacfc \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr><th>\uc2e4\ud328 \uc704\ud5d8<\/th><th>\uacf5\ud1b5 \uc6d0\uc778<\/th><th>\uc2e4\uc9c8\uc801\uc778 \uacb0\uacfc<\/th><\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>\ubaa8\uc11c\ub9ac \uae68\uc9d0<\/td><td>\uacbd\ub3c4\uac00 \ub108\ubb34 \ub192\uc74c, \ucda9\uaca9 \ud558\uc911, \uc9c0\uc9c0\ub825 \ubd80\uc871<\/td><td>\uc808\uc0ad\ub0a0\uc774 \uc815\uc0c1\uc801\uc778 \ub9c8\ubaa8 \uc804\uc5d0 \ubd80\ub7ec\uc9d1\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ub2f4\uae08\uc9c8 \uade0\uc5f4<\/td><td>\ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac, \ubd88\uade0\uc77c\ud55c \ub2e8\uba74 \ub450\uaed8, \uc9c0\uc5f0\ub41c \uc5f4\ucc98\ub9ac<\/td><td>\uacf5\uad6c\uc5d0 \uade0\uc5f4\uc774 \uc0dd\uae30\ub294 \ud604\uc0c1(\uc0ac\uc6a9 \uc804 \ub610\ub294 \uc0ac\uc6a9 \uc9c1\ud6c4)<\/td><\/tr>\n            <tr><td>\ucde8\uc131 \ud30c\uad34<\/td><td>\ub192\uc740 \uacbd\ub3c4\uc640 \ucda9\uaca9 \ub610\ub294 \uad7d\ud798 \uc751\ub825\uc758 \uc870\ud569<\/td><td>\uac11\uc791\uc2a4\ub7ec\uc6b4 \uacf5\uad6c \uace0\uc7a5<\/td><\/tr>\n            <tr><td>\ucc28\uc6d0 \ubcc0\ud654<\/td><td>\uad6c\uc870\uc801 \ubd88\uc548\uc815 \ub610\ub294 \uc5f4\ucc98\ub9ac \uc81c\uc5b4 \ubd88\ub7c9<\/td><td>\uacbd\ud654 \ud6c4 \ub610\ub294 \uc0ac\uc6a9 \uc911\uc5d0 \uacf5\uad6c \ud06c\uae30\uac00 \ubcc0\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\uade0\uc5f4\uc744 \uac08\uc544\ub0b4\ub2e4<\/td><td>\uacbd\ud654\ub41c O1\uc744 \uc5f0\uc0ad\ud558\ub294 \ub3d9\uc548 \uacfc\uc5f4<\/td><td>\ubbf8\uc138 \uade0\uc5f4\uc740 \uc791\ub3d9 \ubd80\ud558 \ud558\uc5d0\uc11c \uc131\uc7a5\ud569\ub2c8\ub2e4.<\/td><\/tr>\n            <tr><td>\ubd80\ub4dc\ub7ec\uc6b4 \ubd80\ubd84<\/td><td>\ubd88\uade0\uc77c\ud55c \uacbd\ud654 \ub610\ub294 \uacfc\ub3c4\ud55c \ud15c\ud37c\ub9c1 \uc5f4<\/td><td>\uad6d\ubd80\uc801\uc778 \ub9c8\ubaa8 \ub610\ub294 \ubcc0\ud615<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\uc774\ub7ec\ud55c \uc704\ud5d8\uc744 \uc904\uc774\uae30 \uc704\ud574 O1 \uacf5\uad6c\ub294 \ub9e4\ub044\ub7ec\uc6b4 \uc804\ud658\ubd80, \uc801\uc808\ud55c \uace1\ub960 \ubc18\uacbd, \uc81c\uc5b4\ub41c \uc5f4\ucc98\ub9ac, \ub2f4\uae08\uc9c8 \ud6c4 \uc989\uc2dc \ud15c\ud37c\ub9c1, \uacbd\ud654 \ud6c4 \uc138\uc2ec\ud55c \uc5f0\uc0ad\uc744 \uac70\uccd0\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n      <h2>O1, A2, D2 \uacbd\ub3c4 \ube44\uad50<\/h2>\n      <p>O1, A2, D2\ub294 \ubaa8\ub450 \ube44\uc2b7\ud55c HRC \ubc94\uc704\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc131\ub2a5\uc740 \uc11c\ub85c \ub2e4\ub985\ub2c8\ub2e4. \uacbd\ub3c4\ub9cc\uc73c\ub85c\ub294 \uacf5\uad6c \uc218\uba85\uc744 \uc124\uba85\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc774\ub4e4 \ud569\uae08\uc758 \ucc28\uc774\ub294 \uacbd\ud654\uc131, \ud0c4\ud654\ubb3c \ud568\ub7c9, \ub0b4\ub9c8\ubaa8\uc131, \uc778\uc131 \ubc0f \uac00\uacf5\uc131\uc5d0\uc11c \ube44\ub86f\ub429\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr><th>\uac15\ucca0 \ub4f1\uae09<\/th><th>\uc77c\ubc18\uc801\uc778 \uc791\uc5c5 \uacbd\ub3c4<\/th><th>\uacbd\ud654\ud615<\/th><th>\ub0b4\ub9c8\ubaa8\uc131<\/th><th>\uac15\uc778\ud568<\/th><th>\uac00\uacf5\uc131<\/th><\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>\uc6241<\/td><td>58\u201360 HRC<\/td><td>\uc624\uc77c \uacbd\ud654<\/td><td>\uc88b\uc740<\/td><td>\uc77c\ubc18\uc801\uc778 \ub0c9\uac04 \uc791\uc5c5\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/td><td>\uc88b\uc740<\/td><\/tr>\n            <tr><td>A2<\/td><td>57\u201360 HRC<\/td><td>\uacf5\uae30 \uacbd\ud654<\/td><td>O1\ubcf4\ub2e4 \ub192\uc74c<\/td><td>D2\ubcf4\ub2e4 \ubc38\ub7f0\uc2a4\uac00 \ub354 \uc88b\ub2e4<\/td><td>\ubcf4\ud1b5\uc758<\/td><\/tr>\n            <tr><td>\ub5142<\/td><td>58\u201360 HRC<\/td><td>\uacf5\uae30 \uacbd\ud654<\/td><td>\ub9e4\uc6b0 \ub192\uc74c<\/td><td>\ub0ae\ucd94\ub2e4<\/td><td>\uac00\ub09c\ud55c<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>O1\uac15\uc740 \uac00\uacf5\uc131, \uac04\ub2e8\ud55c \uc5f4\ucc98\ub9ac, \ubc94\uc6a9 \ub0c9\uac04 \uac00\uacf5 \uc131\ub2a5\uc774 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0 \uc8fc\ub85c \uc120\ud0dd\ub429\ub2c8\ub2e4. \uc624\uc77c \ud01c\uce6d\uc73c\ub85c \ucda9\ubd84\ud55c \uacbd\ub3c4\ub97c \uc5bb\uc744 \uc218 \uc788\ub294 \uc18c\ud615 \ubc0f \uc911\ud615 \uacf5\uad6c\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n      <p>\uce58\uc218 \uc548\uc815\uc131, \ub192\uc740 \uacbd\ud654\uc131 \ubc0f \uc6b0\uc218\ud55c \ub0b4\ucda9\uaca9\uc131\uc774 \uc694\uad6c\ub420 \ub54c\ub294 A2\uac15\uc774 \ub354 \uc801\ud569\ud569\ub2c8\ub2e4. \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc8fc\uc694 \uc694\uad6c \uc0ac\ud56d\uc77c \ub54c\ub294 D2\uac15\uc774 \ub354 \uc801\ud569\ud558\uc9c0\ub9cc, \uac00\uacf5\uc131\uc774 \ub5a8\uc5b4\uc9c0\uace0 \ucda9\uaca9\uc5d0 \ucde8\uc57d\ud569\ub2c8\ub2e4.<\/p>\n      <p>\uc7ac\uc9c8 \uc120\ud0dd\uc740 HRC(\uc5f4\uacbd\ud654\uac15\ub3c4)\uc5d0\ub9cc \uadfc\uac70\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. O1, A2, D2\ub294 \ubaa8\ub450 58~60 HRC \uc815\ub3c4\uc758 \uacbd\ub3c4\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc9c0\ub9cc, \ub9c8\ubaa8, \ucda9\uaca9, \uc2ac\ub77c\uc774\ub529 \ubc0f \uade0\uc5f4 \uc870\uac74\uc5d0\uc11c \uc131\ub2a5\uc774 \ub2e4\ub97c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n    <\/main>\n\n    <section class=\"aobo-cta\">\n      <div>\n        <h2>\uc5f4\ucc98\ub9ac\ub41c O1\uac15 \uacac\uc801\uc744 \uc694\uccad\ud569\ub2c8\ub2e4.<\/h2>\n        <p>\uc544\uc624\ubcf4 \uc2a4\ud2f8\uc740 \uae30\uacc4 \uac00\uacf5 \ubc0f \ucd94\uac00 \uc5f4\ucc98\ub9ac\ub97c \uc704\ud55c \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c O1 \uacf5\uad6c\uac15\uc744 \uacf5\uae09\ud569\ub2c8\ub2e4. \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uaddc\uaca9, \uacf5\uae09 \uc870\uac74 \ubc0f \ub300\ub7c9 \uc8fc\ubb38\uc5d0 \ub300\ud55c \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \ub2f9\uc0ac\uc758 O1 \uacf5\uad6c\uac15 \uc81c\ud488 \ud398\uc774\uc9c0\ub97c \ucc38\uc870\ud558\uc2ed\uc2dc\uc624.<\/p>\n      <\/div>\n      <div class=\"aobo-cta-actions\">\n        <a class=\"aobo-btn aobo-btn-primary popmake-16052\" href=\"javascript:void(0);\">\uc5f4\ucc98\ub9ac\ub41c O1\uac15 \uacac\uc801\uc744 \uc694\uccad\ud569\ub2c8\ub2e4.<\/a>\n        <a class=\"aobo-btn aobo-btn-secondary\" href=\"https:\/\/aobosteel.com\/ko\/o1-tool-steel\/\">O1 \uacf5\uad6c\uac15 \uc81c\ud488 \ud398\uc774\uc9c0<\/a>\n      <\/div>\n    <\/section>\n  <\/div>\n<\/section>\n\n\n\n<ul class=\"wp-block-yoast-seo-related-links yoast-seo-related-links\">\n<li><a href=\"https:\/\/aobosteel.com\/ko\/o1-tool-steel\/\">O1 \uacf5\uad6c\uac15 | 1.2510 | SKS3<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/h13-steel-heat-treatment\/\">H13 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc | \uc544\uc624\ubcf4 \uc2a4\ud2f8<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/h13-steel-hardness\/\">H13\uac15 \uacbd\ub3c4: HRC \ubc94\uc704, \ud15c\ud37c\ub9c1 \ucc28\ud2b8 \ubc0f \uc801\uc6a9 \ubd84\uc57c<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/420-stainless-steel-heat-treatment\/\">420\uac15 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc | \uacbd\ud654, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/aobosteel.com\/ko\/s7-tool-steel-rockwell-hardness-chart\/\">S7 \uacf5\uad6c\uac15 \ub85c\ud06c\uc6f0 \uacbd\ub3c4\ud45c | HRC, HB \ubc0f \uc791\uc5c5 \ubc94\uc704<\/a><\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-faq\" class=\"wp-block-heading\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1778719081160\"><strong class=\"schema-faq-question\">\uc5f4\ucc98\ub9ac\ub41c O1\uac15\uc758 \uc77c\ubc18\uc801\uc778 \uacbd\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">\uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c O1\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc57d 100kg \uc774\ud558\ub85c \uacf5\uae09\ub429\ub2c8\ub2e4. <strong>217 HBW<\/strong>. \uc774\ub294 \uacbd\ud654 \uc804 \uac00\uacf5\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc5f0\uc9c8 \uc0c1\ud0dc\uc785\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778719105773\"><strong class=\"schema-faq-question\">O1\uac15\uc740 \ub2f4\uae08\uc9c8 \ud6c4 \uc5bc\ub9c8\ub098 \ub2e8\ub2e8\ud574\uc9c8 \uc218 \uc788\ub098\uc694?<\/strong> <p class=\"schema-faq-answer\">\uc801\uc808\ud55c \uc624\uc77c \ud01c\uce6d \ucc98\ub9ac \ud6c4, O1\uac15\uc740 \uc57d 1000\u00b0C \uc815\ub3c4\uc758 \uc628\ub3c4\ub97c \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <strong>64\u201365 HRC<\/strong> \ub2f4\uae08\uc9c8\ub41c \uc0c1\ud0dc \uadf8\ub300\ub85c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uacf5\uad6c\ub97c \uc0ac\uc6a9\ud558\uae30 \uc804\uc5d0 \ubc18\ub4dc\uc2dc \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub97c \ud574\uc57c \ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778719106539\"><strong class=\"schema-faq-question\">O1 \uacf5\uad6c\uac15\uc758 \uc77c\ubc18\uc801\uc778 \uac00\uacf5 \uacbd\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<\/strong> <p class=\"schema-faq-answer\">O1 \uacf5\uad6c\uac15\uc758 \uc77c\ubc18\uc801\uc778 \uacbd\ub3c4\ub294 \uc57d \uc785\ub2c8\ub2e4. <strong>58\u201360 HRC<\/strong> \uacbd\ud654 \ubc0f \ud15c\ud37c\ub9c1 \ud6c4. \uc2e4\uc81c\uc801\uc778 \ub113\uc740 \ubc94\uc704\ub294 \uc57d <strong>56\u201362 HRC<\/strong>.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778719107523\"><strong class=\"schema-faq-question\">62 HRC \uacbd\ub3c4\ub294 O1 \uac15\ucca0\uc5d0 \ube44\ud574 \ub108\ubb34 \ub192\uc740 \uacbd\ub3c4\uc778\uac00\uc694?<\/strong> <p class=\"schema-faq-answer\">\ud56d\uc0c1 \uadf8\ub7f0 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. HRC\ub294\u00a0<strong>60\u201362<\/strong>\u00a0\ub0a0 \uc720\uc9c0\ub825\uacfc \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc6b0\uc218\ud55c \uacf5\uad6c\uc5d0 \uc801\ud569\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucda9\uaca9, \ubd80\uc2e4\ud55c \uc9c0\uc9c0 \ub610\ub294 \uade0\uc5f4 \uc704\ud5d8\uc5d0 \ub178\ucd9c\ub418\ub294 \uacf5\uad6c\uc758 \uacbd\uc6b0, \uacbd\ub3c4\uac00 \uc57d\uac04 \ub0ae\uc740 \uac83\uc774 \ub354 \uc548\uc804\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778719138724\"><strong class=\"schema-faq-question\">O1\uac15\uc740 \uc65c \ub2f4\uae08\uc9c8 \uacfc\uc815\uc5d0\uc11c \uacbd\ub3c4\uac00 \ub5a8\uc5b4\uc9c0\ub294\uac00?<\/strong> <p class=\"schema-faq-answer\">O1 \ud569\uae08\uc740 \ub2f4\uae08\uc9c8 \uacfc\uc815\uc5d0\uc11c \ud615\uc131\ub41c \ub2e8\ub2e8\ud55c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uac00 \ud15c\ud37c\ub9c1\ub41c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub85c \ubcc0\ud558\uba74\uc11c \ud15c\ud37c\ub9c1 \uacfc\uc815\uc5d0\uc11c \uacbd\ub3c4\uac00 \uac10\uc18c\ud569\ub2c8\ub2e4. \ud15c\ud37c\ub9c1 \uc628\ub3c4\uac00 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \uacbd\ub3c4\ub294 \uac10\uc18c\ud558\uace0 \uc778\uc131\uc740 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1778719139476\"><strong class=\"schema-faq-question\">O1\uc774 D2\ubcf4\ub2e4 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub354 \ub6f0\uc5b4\ub09c\uac00\uc694?<\/strong> <p class=\"schema-faq-answer\">O1\uc740 \uc77c\ubc18\uc801\uc778 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uc5d0 \uc801\ud569\ud55c \uc6b0\uc218\ud55c \ub0b4\ub9c8\ubaa8\uc131\uc744 \uac00\uc9c0\uace0 \uc788\uc9c0\ub9cc, D2\ub294 \ub192\uc740 \ud0c4\uc18c \ubc0f \ud06c\ub86c \uce74\ubc14\uc774\ub4dc \ud568\ub7c9\uc73c\ub85c \uc778\ud574 \ud6e8\uc52c \ub354 \ub192\uc740 \ub0b4\ub9c8\ubaa8\uc131\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>O1 Steel Hardness: Annealed, Quenched and Tempered HRC Range O1 tool steel is usually supplied in the annealed condition, with a hardness typically not exceeding about 217 HBW. After oil quenching, O1 can reach about 64\u201365 HRC in the as-quenched condition. For practical use, O1 steel is hardened and tempered. Its typical hardness is about [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15315,"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-15314","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>O1 Steel Hardness: Annealed, Quenched &amp; Tempered HRC Guide - AoboSteel<\/title>\n<meta name=\"description\" content=\"O1 steel typically works at 58\u201360 HRC after hardening and tempering. Compare annealed hardness, as-quenched hardness, tempering chart, and application hardness.\" \/>\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\/o1-steel-hardness\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"O1 Steel Hardness: Annealed, Quenched &amp; Tempered HRC Guide\" \/>\n<meta property=\"og:description\" content=\"O1 steel typically works at 58\u201360 HRC after hardening and tempering. Compare annealed hardness, as-quenched hardness, tempering chart, and application hardness.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/ko\/o1-steel-hardness\/\" \/>\n<meta property=\"og:site_name\" content=\"AoboSteel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-25T07:17:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-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=\"7\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"O1 Steel Hardness: Annealed, Quenched &amp; Tempered HRC Guide\",\"datePublished\":\"2026-05-14T00:48:04+00:00\",\"dateModified\":\"2026-06-25T07:17:11+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/\"},\"wordCount\":1280,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/O1-hardness-ad.avif\",\"inLanguage\":\"ko-KR\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/\",\"name\":\"O1 Steel Hardness: Annealed, Quenched &amp; Tempered HRC Guide - AoboSteel\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/O1-hardness-ad.avif\",\"datePublished\":\"2026-05-14T00:48:04+00:00\",\"dateModified\":\"2026-06-25T07:17:11+00:00\",\"description\":\"O1 steel typically works at 58\u201360 HRC after hardening and tempering. 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This is the soft condition used for machining before hardening.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/#faq-question-1778719105773\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/#faq-question-1778719105773\",\"name\":\"How hard can O1 steel get after quenching?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"After proper oil quenching, O1 steel can reach about <strong>64\u201365 HRC<\\\/strong> in the as-quenched condition. However, it must be tempered before use with tools.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/#faq-question-1778719106539\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/#faq-question-1778719106539\",\"name\":\"What is the common working hardness of O1 tool steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The typical hardness of O1 tool steel is about <strong>58\u201360 HRC<\\\/strong> after hardening and tempering. 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As tempering temperature increases, hardness decreases and toughness improves.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/#faq-question-1778719139476\",\"position\":6,\"url\":\"https:\\\/\\\/aobosteel.com\\\/o1-steel-hardness\\\/#faq-question-1778719139476\",\"name\":\"Is O1 more wear-resistant than D2?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. O1 has good wear resistance for general cold-work tools, but D2 has much higher abrasive wear resistance because of its high carbon and high chromium carbide content.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"O1\uac15 \uacbd\ub3c4: \uc5b4\ub2d0\ub9c1, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ucc98\ub9ac \ud6c4 HRC \uac00\uc774\ub4dc - AoboSteel","description":"O1\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uacbd\ud654 \ubc0f \ud15c\ud37c\ub9c1 \ud6c4 58~60 HRC\uc758 \uacbd\ub3c4\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc5b4\ub2d0\ub9c1 \ud6c4 \uacbd\ub3c4, \ub2f4\uae08\uc9c8 \ud6c4 \uacbd\ub3c4, \ud15c\ud37c\ub9c1 \ucc28\ud2b8 \ubc0f \uc2e4\uc81c \uc0ac\uc6a9 \uc2dc \uacbd\ub3c4\ub97c \ube44\uad50\ud558\uc2ed\uc2dc\uc624.","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\/o1-steel-hardness\/","og_locale":"ko_KR","og_type":"article","og_title":"O1 Steel Hardness: Annealed, Quenched &amp; Tempered HRC Guide","og_description":"O1 steel typically works at 58\u201360 HRC after hardening and tempering. 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However, it must be tempered before use with tools.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/o1-steel-hardness\/#faq-question-1778719106539","position":3,"url":"https:\/\/aobosteel.com\/o1-steel-hardness\/#faq-question-1778719106539","name":"O1 \uacf5\uad6c\uac15\uc758 \uc77c\ubc18\uc801\uc778 \uac00\uacf5 \uacbd\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The typical hardness of O1 tool steel is about <strong>58\u201360 HRC<\/strong> after hardening and tempering. The broader practical range is about <strong>56\u201362 HRC<\/strong>.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/o1-steel-hardness\/#faq-question-1778719107523","position":4,"url":"https:\/\/aobosteel.com\/o1-steel-hardness\/#faq-question-1778719107523","name":"62 HRC \uacbd\ub3c4\ub294 O1 \uac15\ucca0\uc5d0 \ube44\ud574 \ub108\ubb34 \ub192\uc740 \uacbd\ub3c4\uc778\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Not always. An HRC of\u00a0<strong>60\u201362<\/strong>\u00a0can be suitable for tools that require better edge retention and wear resistance. For tools exposed to impact, poor support, or cracking risk, a slightly lower hardness may be safer.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/o1-steel-hardness\/#faq-question-1778719138724","position":5,"url":"https:\/\/aobosteel.com\/o1-steel-hardness\/#faq-question-1778719138724","name":"O1\uac15\uc740 \uc65c \ub2f4\uae08\uc9c8 \uacfc\uc815\uc5d0\uc11c \uacbd\ub3c4\uac00 \ub5a8\uc5b4\uc9c0\ub294\uac00?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"O1 loses hardness during tempering because the hard martensite formed during quenching becomes tempered martensite. As tempering temperature increases, hardness decreases and toughness improves.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/o1-steel-hardness\/#faq-question-1778719139476","position":6,"url":"https:\/\/aobosteel.com\/o1-steel-hardness\/#faq-question-1778719139476","name":"O1\uc774 D2\ubcf4\ub2e4 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub354 \ub6f0\uc5b4\ub09c\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. O1 has good wear resistance for general cold-work tools, but D2 has much higher abrasive wear resistance because of its high carbon and high chromium carbide content.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad-300x300.avif",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad-768x768.avif",768,768,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-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":"O1 Steel Hardness: Annealed, Quenched and Tempered HRC Range O1 tool steel is usually supplied in the annealed condition, with a hardness typically not exceeding about 217 HBW. After oil quenching, O1 can reach about 64\u201365 HRC in the as-quenched condition. For practical use, O1 steel is hardened and tempered. Its typical hardness is about&hellip;","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad.avif",1254,1254,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad.avif",1254,1254,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad.avif",1254,1254,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad-1024x1024.avif",1024,1024,true],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad.avif",1254,1254,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-ad.avif",1254,1254,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/05\/O1-hardness-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":"O1 Steel Hardness: Annealed, Quenched and Tempered HRC Range O1 tool steel is usually supplied in the annealed condition, with a hardness typically not exceeding about 217 HBW. After oil quenching, O1 can reach about 64\u201365 HRC in the as-quenched condition. For practical use, O1 steel is hardened and tempered. Its typical hardness is about&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/15314","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=15314"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/15314\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media\/15315"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=15314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}