{"id":12240,"date":"2026-01-14T13:32:41","date_gmt":"2026-01-14T05:32:41","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=12240"},"modified":"2026-09-18T17:57:19","modified_gmt":"2026-09-18T09:57:19","slug":"s1-tool-steel-heat-treatment-guide","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/s1-tool-steel-heat-treatment-guide\/","title":{"rendered":"Gu\u00eda de tratamiento t\u00e9rmico del acero para herramientas S1"},"content":{"rendered":"\n<section class=\"aobo-s1-heat-treatment-page\">\n  <style>\n    .aobo-s1-heat-treatment-page {\n      --aobo-blue: #0c56d0;\n      --aobo-blue-dark: #073b8e;\n      --aobo-blue-soft: #eaf2ff;\n      --aobo-border: #d7e5fb;\n      --aobo-text: #203044;\n      --aobo-muted: #617087;\n      --aobo-orange: #f59b23;\n      --aobo-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-s1-heat-treatment-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      align-items: center;\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 h3 {\n      margin: 30px 0 10px;\n      color: #123f88;\n      font-size: 22px;\n      line-height: 1.3;\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-list {\n      margin: 0 0 20px;\n      padding-left: 22px;\n      color: var(--aobo-text);\n      font-size: 17px;\n    }\n\n    .aobo-list li {\n      margin: 0 0 10px;\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: 24px 0 30px;\n      padding: 20px 22px;\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      box-shadow: 0 10px 24px rgba(12, 86, 208, 0.05);\n    }\n\n    .aobo-note h2 {\n      margin-top: 0;\n    }\n\n    .aobo-figure {\n      margin: 24px 0 30px;\n      padding: 18px;\n      border: 1px solid var(--aobo-border);\n      border-radius: 18px;\n      background: var(--aobo-white);\n      box-shadow: 0 12px 32px rgba(12, 86, 208, 0.07);\n    }\n\n    .aobo-figure img {\n      display: block;\n      width: 60%;\n      max-width: 100%;\n      height: auto;\n      margin: 0 auto;\n      border-radius: 12px;\n    }\n\n    .aobo-figure figcaption {\n      margin-top: 12px;\n      color: var(--aobo-muted);\n      font-size: 14px;\n      line-height: 1.55;\n      text-align: center;\n    }\n\n    .aobo-problem {\n      margin: 18px 0;\n      padding: 20px 22px;\n      border: 1px solid var(--aobo-border);\n      border-radius: 16px;\n      background: #ffffff;\n      box-shadow: 0 10px 24px rgba(12, 86, 208, 0.05);\n    }\n\n    .aobo-problem h3 {\n      margin-top: 0;\n    }\n\n    .aobo-problem p {\n      margin-bottom: 0;\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-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      background: #ffffff;\n      border: 1px solid #ffffff;\n      color: var(--aobo-blue) !important;\n    }\n\n    .aobo-btn:hover {\n      transform: translateY(-1px);\n      background: #fff7ed;\n      color: var(--aobo-blue-dark) !important;\n    }\n\n    .aobo-supply-block .aobo-btn {\n      background: var(--aobo-blue);\n      border-color: var(--aobo-blue);\n      color: #ffffff !important;\n    }\n\n    .aobo-supply-block .aobo-btn:hover {\n      background: var(--aobo-blue-dark);\n      color: #ffffff !important;\n    }\n\n    .aobo-supply-block .aobo-btn-detail {\n      background: #ffffff;\n      border-color: var(--aobo-border);\n      color: var(--aobo-blue) !important;\n    }\n\n    .aobo-supply-block .aobo-btn-detail:hover {\n      background: var(--aobo-blue-soft);\n      border-color: var(--aobo-blue);\n      color: var(--aobo-blue-dark) !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-article h3 {\n        font-size: 20px;\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 {\n        width: 100%;\n        flex-direction: column;\n        align-items: stretch;\n      }\n\n      .aobo-supply-actions .aobo-btn {\n        width: 100%;\n      }\n\n      .aobo-figure img {\n        width: 100%;\n      }\n\n      .aobo-cta {\n        padding: 26px 22px;\n        border-radius: 22px;\n      }\n\n      .aobo-btn {\n        width: 100%;\n      }\n    }\n  <\/style>\n<style id=\"aobo-ds\">\n.entry-content[class]{--ds-font-body: Lora,serif;--ds-font-head: Lato,sans-serif;--ds-blue: #0c56d0;--ds-blue-deep: #082d6f;--ds-blue-dark: #073b91;--ds-blue-soft: #eaf2ff;--ds-blue-pale: #f7fbff;--ds-border: #d7e5fb;--ds-border-soft: #e8eef8;--ds-text: #203044;--ds-muted: #617087;--ds-orange: #f59b23;--ds-shadow: 0 18px 45px rgba(12,86,208,0.10);--ds-shadow-sm: 0 12px 32px rgba(12,86,208,0.07);font-family: var(--ds-font-body);line-height: 1.7;-webkit-text-size-adjust: 100%;box-sizing: border-box}.entry-content[class] *,.entry-content[class] *::before,.entry-content[class] *::after{box-sizing: border-box}.entry-content[class] h1{font-family: var(--ds-font-head) !important;font-size: clamp(24px,4vw,min(50px,var(--h1-max,50px))) !important;line-height: 1.08 !important;letter-spacing: 0 !important;font-weight: 400 !important;margin: 0 0 16px !important}.entry-content[class] h2{font-family: var(--ds-font-head) !important;font-size: 30px !important;line-height: 1.25 !important;letter-spacing: 0 !important;font-weight: 400 !important;margin: 44px 0 16px !important}.entry-content[class] h3{font-family: var(--ds-font-head) !important;font-size: 23px !important;line-height: 1.3 !important;letter-spacing: 0 !important;font-weight: 400 !important;margin: 30px 0 12px !important}.entry-content[class] h4{font-family: var(--ds-font-head) !important;font-size: 19px !important;line-height: 1.35 !important;letter-spacing: 0 !important;font-weight: 700 !important;margin: 24px 0 10px !important}.entry-content[class] p,.entry-content[class] li,.entry-content[class] dd,.entry-content[class] dt{font-family: var(--ds-font-body) !important;font-size: 17px !important;line-height: 1.7 !important}.entry-content[class] figcaption,.entry-content[class] small,.entry-content[class] .aobo-figure figcaption{font-size: 15px !important;line-height: 1.6 !important}.entry-content[class] table{width: 100%;border-collapse: collapse;background: #ffffff}.entry-content[class] table th,.entry-content[class] table thead th,.entry-content[class] table thead td{background: var(--ds-blue-soft) !important;color: var(--ds-blue-deep) !important;font-family: var(--ds-font-head) !important;font-size: 15px !important;font-weight: 700 !important;line-height: 1.45 !important;text-align: center !important;text-transform: none !important;letter-spacing: 0 !important;padding: 14px 16px !important;border: 0 !important;border-bottom: 1px solid var(--ds-border) !important;vertical-align: top !important;position: static !important}.entry-content[class] table td{font-family: var(--ds-font-body) !important;font-size: 15px !important;line-height: 1.55 !important;padding: 14px 16px !important;border: 0;border-bottom: 1px solid var(--ds-border-soft) !important;vertical-align: top !important;white-space: normal !important;text-align: center !important}.entry-content[class] table tbody tr:last-child td{border-bottom: 0 !important}.entry-content[class] table th.ds-text,.entry-content[class] table td.ds-text{text-align: left !important}.entry-content[class] table tbody tr:nth-child(even){background: #fafcff !important}.entry-content[class] table tbody tr:hover{background: #f2f7ff !important}.entry-content[class] table tbody td:first-child{color: var(--ds-blue-deep);font-weight: 700}.entry-content[class] .aobo-table-wrap,.entry-content[class] .ts-table-wrap{overflow-x: auto;margin: 22px 0 28px;border: 1px solid var(--ds-border);border-radius: 18px;box-shadow: var(--ds-shadow-sm);background: #ffffff}.entry-content[class] h1,.entry-content[class] h2,.entry-content[class] h3,.entry-content[class] h4{color: var(--ds-blue-deep)}.entry-content[class] p,.entry-content[class] li{color: var(--ds-text)}.entry-content[class] a{color: var(--ds-blue);font-weight: 700;text-decoration: none}.entry-content[class] a:hover,.entry-content[class] a:focus{color: var(--ds-orange)}.entry-content[class] .aobo-final-cta h1,.entry-content[class] .aobo-final-cta h2,.entry-content[class] .aobo-final-cta h3,.entry-content[class] .aobo-final-cta p,.entry-content[class] .aobo-cta h1,.entry-content[class] .aobo-cta h2,.entry-content[class] .aobo-cta h3,.entry-content[class] .aobo-cta p,.entry-content[class] .aobo-cta-buttons,.entry-content[class] .aobo-cta-buttons *,.entry-content[class] .aobo-esr .stat-band h2,.entry-content[class] .aobo-esr .stat-band h3,.entry-content[class] .aobo-esr .stat-band p,.entry-content[class] .aobo-esr .closing h2,.entry-content[class] .aobo-esr .closing h3,.entry-content[class] .aobo-esr .closing p,.entry-content[class] .footcta h2,.entry-content[class] .footcta h3,.entry-content[class] .footcta p,.entry-content[class] .bg-dark h2,.entry-content[class] .bg-dark h3,.entry-content[class] .bg-dark p,.entry-content[class] .ht-header h2,.entry-content[class] .ht-header h3,.entry-content[class] .ts-cta h2,.entry-content[class] .ts-cta h3,.entry-content[class] .aobo-sup .stats h2,.entry-content[class] .aobo-sup .stats h3,.entry-content[class] .aobo-sup .stats p,.entry-content[class] .aobo-sup .cta h2,.entry-content[class] .aobo-sup .cta h3,.entry-content[class] .aobo-sup .cta p{color: inherit}.entry-content[class] .aobo-final-cta p,.entry-content[class] .aobo-cta p,.entry-content[class] .aobo-sup .cta p{color: rgba(255,255,255,0.92)}.entry-content[class] .has-ast-global-color-0-background-color,.entry-content[class] .has-ast-global-color-0-background-color *,.entry-content[class] .contact-container,.entry-content[class] .contact-container *{color: #ffffff !important}.entry-content[class] .has-ast-global-color-0-background-color .label-text,.entry-content[class] .has-ast-global-color-0-background-color .label-text *,.entry-content[class] .contact-container .label-text{color: rgba(255,255,255,0.72) !important}.entry-content[class] .aobo-cta h1,.entry-content[class] .aobo-cta h2,.entry-content[class] .aobo-cta h3,.entry-content[class] .aobo-cta h4,.entry-content[class] .cta h1,.entry-content[class] .cta h2,.entry-content[class] .cta h3,.entry-content[class] .cta h4,.entry-content[class] .aobo-final-cta h1,.entry-content[class] .aobo-final-cta h2,.entry-content[class] .aobo-final-cta h3,.entry-content[class] .aobo-final-cta h4{color: #ffffff !important}.entry-content[class] .aobo-cta p,.entry-content[class] .aobo-cta li,.entry-content[class] .cta p,.entry-content[class] .cta li,.entry-content[class] .aobo-final-cta p,.entry-content[class] .aobo-final-cta li{color: rgba(255,255,255,0.93) !important}.entry-content[class] .aobo-cta p a,.entry-content[class] .aobo-cta li a,.entry-content[class] .cta p a,.entry-content[class] .cta li a,.entry-content[class] .aobo-final-cta p a,.entry-content[class] .aobo-final-cta li a{color: #ffffff !important;text-decoration: underline}.entry-content[class] .aobo-btn-inquiry{color: #ffffff !important}.entry-content[class] .aobo-cta .aobo-btn-inquiry,.entry-content[class] .aobo-final-cta .aobo-btn-inquiry{color: var(--ds-blue) !important}.entry-content[class] .aobo-wrap,.entry-content[class] .aobo-article{max-width: 1180px;margin: 0 auto;padding: 0}.entry-content[class] img{max-width: 100%;height: auto}.entry-content[class] figure{margin: 26px auto 34px;max-width: 860px}.entry-content[class] figure img{display: block;width: 100%;border: 1px solid var(--ds-border);border-radius: 18px;box-shadow: var(--ds-shadow-sm);background: #ffffff}.entry-content[class] .aobo-hero{background: linear-gradient(135deg,#ffffff 0%,#f7fbff 56%,#eaf2ff 100%);border: 1px solid var(--ds-border);border-radius: 28px;padding: 42px 38px;margin-bottom: 24px;box-shadow: var(--ds-shadow);overflow: hidden;position: relative}.entry-content[class] .aobo-hero::after{content: \"\";position: absolute;right: -90px;top: -90px;width: 260px;height: 260px;border-radius: 50%;background: rgba(12,86,208,0.08)}.entry-content[class] .aobo-hero h1,.entry-content[class] .aobo-hero p{position: relative;z-index: 2}.entry-content[class] .aobo-note-box{margin: 34px 0;padding: 22px 24px;border: 1px solid var(--ds-border);border-left: 5px solid var(--ds-orange);border-radius: 16px;background: #fbfdff}.entry-content[class] .aobo-note-box p{margin: 0 0 14px;color: var(--ds-muted) !important;font-style: italic}.entry-content[class] .aobo-note-box p:last-child{margin-bottom: 0}.entry-content[class] .aobo-btn{display: inline-flex;align-items: center;justify-content: center;min-height: 42px;padding: 10px 16px;border-radius: 999px;text-align: center;text-decoration: none;font-family: var(--ds-font-head) !important;font-weight: 700;font-size: 14px !important;line-height: 1.2;transition: all 0.2s ease;cursor: pointer;white-space: nowrap}.entry-content[class] .aobo-btn-primary{background: var(--ds-blue);border: 1px solid var(--ds-blue);color: #ffffff !important}.entry-content[class] .aobo-btn-secondary{background: #ffffff;border: 1px solid var(--ds-border);color: var(--ds-blue) !important}.entry-content[class] .aobo-btn:hover{transform: translateY(-1px)}.entry-content[class] .aobo-supply-actions{display: flex;flex-wrap: wrap;gap: 12px;margin-top: 18px}.entry-content[class] .aobo-supply-actions .aobo-btn{min-width: 190px}.entry-content[class] .aobo-final-cta{margin-top: 34px;padding: 34px;border-radius: 28px;background: linear-gradient(135deg,#073b91 0%,#0c56d0 100%);box-shadow: 0 18px 45px rgba(12,86,208,0.20);display: flex;align-items: center;justify-content: space-between;gap: 20px;flex-wrap: wrap}.entry-content[class] .aobo-final-cta h2{margin: 0 0 12px !important;font-size: 26px !important;color: #ffffff !important}.entry-content[class] .aobo-final-cta p{margin: 0}.entry-content[class] .aobo-final-cta .aobo-btn-primary{background: #ffffff;border-color: #ffffff;color: var(--ds-blue) !important}.entry-content[class] .aobo-final-cta .aobo-btn-secondary{background: transparent;border-color: rgba(255,255,255,0.75);color: #ffffff !important}.entry-content[class] .ts-hero{background: transparent !important;border: 0 !important;border-radius: 0 !important;box-shadow: none !important}.entry-content[class] .ts-hero-top{background: linear-gradient(135deg,#ffffff 0%,#f7fbff 56%,#eaf2ff 100%) !important;border: 1px solid var(--ds-border) !important;border-radius: 28px !important;padding: 42px 38px !important;margin: 0 0 24px !important;box-shadow: var(--ds-shadow) !important;position: relative;overflow: hidden;text-align: left !important}.entry-content[class] .ts-hero-top h1,.entry-content[class] .ts-hero-top p,.entry-content[class] .ts-hero h1{text-align: left !important}.entry-content[class] .ts-hero-top p{max-width: none !important;margin: 0 0 12px !important}.entry-content[class] .ts-tool-area{padding: 0 !important}.entry-content[class] .ts-sec{font-family: var(--ds-font-head) !important;font-size: 30px !important;line-height: 1.25 !important;font-weight: 400 !important;color: var(--ds-blue-deep) !important;margin: 44px 0 16px !important}.entry-content[class] .ts-sec > span{display: block !important;font-family: var(--ds-font-body) !important;font-size: 17px !important;line-height: 1.7 !important;font-weight: 400 !important;color: var(--ds-text) !important;margin: 0 0 16px !important}.entry-content[class] .ts-kicker{display: inline-flex !important;align-items: center;gap: 7px;margin: 0 0 14px !important;padding: 6px 14px !important;border: 1px solid var(--ds-border) !important;border-radius: 999px !important;background: #ffffff !important;color: var(--ds-blue) !important;font-family: var(--ds-font-head) !important;font-size: 13px !important;font-weight: 700 !important;letter-spacing: 0 !important;text-transform: none !important}.entry-content[class] .ts-p,.entry-content[class] .card-desc,.entry-content[class] .aobo-strip-intro,.entry-content[class] .schema-faq-answer{font-family: var(--ds-font-body) !important;font-size: 17px !important;line-height: 1.7 !important;font-weight: 400 !important}.entry-content[class] .lead,.entry-content[class] .fund-lead{font-family: var(--ds-font-body) !important;font-size: 19px !important;line-height: 1.65 !important;font-weight: 400 !important}.entry-content[class] .ts-h2{font-family: var(--ds-font-head) !important;font-size: 30px !important;line-height: 1.25 !important;font-weight: 400 !important;color: var(--ds-blue-deep) !important;margin: 44px 0 16px !important}.entry-content[class] .ts-h3{font-family: var(--ds-font-head) !important;font-size: 23px !important;line-height: 1.3 !important;font-weight: 400 !important;color: var(--ds-blue-deep) !important;margin: 30px 0 12px !important}.entry-content[class] .card-grade{font-family: var(--ds-font-head) !important;font-size: 23px !important;line-height: 1.25 !important;font-weight: 700 !important}.entry-content[class] .schema-faq-question{font-family: var(--ds-font-head) !important;font-size: 19px !important;line-height: 1.4 !important;font-weight: 700 !important;color: var(--ds-blue-deep) !important}.entry-content[class] .ts-source,.entry-content[class] .ts-hint,.entry-content[class] .ts-placeholder,.entry-content[class] .ht-spec-label,.entry-content[class] .ht-spec-value,.entry-content[class] .ht-step-indicator,.entry-content[class] .ht-badge,.entry-content[class] .idx,.entry-content[class] .xlink,.entry-content[class] .cat-note,.entry-content[class] .aobo-card-note,.entry-content[class] .card-desig,.entry-content[class] .k,.entry-content[class] .v,.entry-content[class] .note,.entry-content[class] .aobo-note{font-family: var(--ds-font-head) !important;font-size: 15px !important;line-height: 1.6 !important;font-weight: 400 !important}.entry-content[class] .ht-spec-label,.entry-content[class] .idx,.entry-content[class] .k{font-weight: 700 !important}.entry-content[class] .aobo-note,.entry-content[class] .note{font-family: var(--ds-font-body) !important;color: var(--ds-muted) !important}.entry-content[class] .chip{font-family: var(--ds-font-head) !important;font-size: 13px !important;font-weight: 700 !important}.entry-content[class] .kicker,.entry-content[class] .eyebrow,.entry-content[class] .aobo-eyebrow{display: inline-flex !important;align-items: center;gap: 7px;margin: 0 0 14px !important;padding: 6px 14px !important;border: 1px solid var(--ds-border) !important;border-radius: 999px !important;background: #ffffff !important;color: var(--ds-blue) !important;font-family: var(--ds-font-head) !important;font-size: 13px !important;font-weight: 700 !important;letter-spacing: 0 !important;text-transform: none !important}@media (max-width: 760px){.entry-content[class] h1{font-size: clamp(22px,6.4vw,min(34px,var(--h1-max,34px))) !important}.entry-content[class] h2{font-size: 25px !important}.entry-content[class] h3{font-size: 20px !important}.entry-content[class] h4{font-size: 17px !important}.entry-content[class] p,.entry-content[class] li{font-size: 16px !important}.entry-content[class] table th,.entry-content[class] table td{font-size: 14px !important;padding: 11px 12px !important}.entry-content[class] .aobo-hero{padding: 30px 22px}.entry-content[class] .aobo-final-cta{padding: 26px 22px}.entry-content[class] .aobo-final-cta .aobo-btn{width: 100%}}\n<\/style>\n\n  <div class=\"aobo-wrap\">\n    <header class=\"aobo-hero\">\n      <h1 style=\"--h1-max:50px\">S1 Tool Steel Heat Treatment Guide<\/h1>\n      <p>S1 tool steel (1.2550, SKS41) is hardened by preheating to about 650\u00b0C (1200\u00b0F), austenitizing at 900\u00b0C to 955\u00b0C (1650\u00b0F to 1750\u00b0F), oil quenching to 50\u00b0C to 70\u00b0C, and tempering immediately while the part is still warm. As-quenched hardness runs about 57 to 59 HRC, and a double temper between 205\u00b0C and 315\u00b0C (400\u00b0F and 600\u00b0F) delivers the high toughness and shock resistance S1 is valued for. Rough-machined or cold-worked parts should be stress relieved before hardening.<\/p>\n    <\/header>\n\n    <section class=\"aobo-supply-block\" aria-label=\"S1 tool steel inquiry and product details\">\n      <div class=\"aobo-supply-image\">\n        <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif\" alt=\"S1 tool steel supplied by Aobo Steel\" loading=\"lazy\">\n      <\/div>\n      <div class=\"aobo-supply-content\">\n        <p>Aobo Steel supplies S1 tool steel (1.2550, SKS41) for shock-resisting applications. Send your required size, quantity, condition, and application for a quote.<\/p>\n        <div class=\"aobo-supply-actions\">\n          <a class=\"aobo-btn popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n          <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/s1-tool-steel\/\">View S1 Tool Steel Details<\/a>\n        <\/div>\n      <\/div>\n    <\/section>\n\n    <main class=\"aobo-article\">\n      <h2>Stress Relief<\/h2>\n      <p>Stress relief prepares S1 components after rough machining or cold working, reducing the risk of distortion and cracking during hardening. Internal stresses from machining, if left in place, can cause severe microstructural or dimensional distortion once the part reaches hardening temperature.<\/p>\n      <ul class=\"aobo-list\">\n        <li><strong>Heating temperature:<\/strong> Heat uniformly to 650\u00b0C to 675\u00b0C (1200\u00b0F to 1250\u00b0F).<\/li>\n        <li><strong>Soak time:<\/strong> 1 hour per 25 mm (1 inch) of thickness, with a minimum of 1 hour.<\/li>\n        <li><strong>Cooling:<\/strong> Slow air cooling.<\/li>\n      <\/ul>\n\n      <h2>Preheating<\/h2>\n      <p>To prevent thermal shock and excessive deformation, cold S1 workpieces must never be placed directly into a furnace already at austenitizing temperature.<\/p>\n      <ul class=\"aobo-list\">\n        <li><strong>Heating temperature:<\/strong> Slowly raise the temperature to about 650\u00b0C (1200\u00b0F).<\/li>\n        <li><strong>Soak:<\/strong> Hold until the cross-section is uniformly heated.<\/li>\n      <\/ul>\n      <p>For parts with complex geometry or large variations in cross-section, preheating is critical. It synchronizes the temperature rise between core and surface during final heating, which lowers thermal stress and prevents cracking.<\/p>\n\n      <h2>Austenitizing (Hardening)<\/h2>\n      <p>Austenitizing is the core hardening step. Heating transforms the structure to austenite and dissolves carbides into the matrix. The austenitizing temperature for S1 must be neither too high nor too low.<\/p>\n      <ul class=\"aobo-list\">\n        <li><strong>Heating temperature:<\/strong> 900\u00b0C to 955\u00b0C (1650\u00b0F to 1750\u00b0F).<\/li>\n        <li><strong>Hold time:<\/strong> 15 to 45 minutes, set by section thickness so the full cross-section through-hardens.<\/li>\n        <li><strong>Atmosphere:<\/strong> Because S1 has only moderate resistance to decarburization, heat in a controlled neutral atmosphere, vacuum, or neutral salt bath to prevent surface oxidation and carbon loss.<\/li>\n      <\/ul>\n\n      <h2>Quenching<\/h2>\n      <p>S1 is an oil-hardening steel. Water quenching is occasionally used for large or simple sections, but oil quenching is preferred for the best toughness and the lowest risk of cracking.<\/p>\n      <ul class=\"aobo-list\">\n        <li><strong>Quenching medium:<\/strong> Preheated, circulating quenching oil.<\/li>\n        <li><strong>Procedure:<\/strong> Quench until the workpiece reaches 50\u00b0C to 70\u00b0C (120\u00b0F to 160\u00b0F), at which point it is still warm.<\/li>\n      <\/ul>\n      <p>Never let the part cool to room temperature before tempering. The as-quenched structure carries high internal stress, and delayed tempering leaves S1 highly prone to spontaneous brittle fracture.<\/p>\n\n      <figure class=\"aobo-figure\">\n        <img decoding=\"async\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/01\/S1-tool-steel-Isothermal-Transformation-Diagram.avif\" alt=\"S1 tool steel isothermal transformation diagram\" loading=\"lazy\">\n        <figcaption>S1 isothermal transformation diagram for a grade with C 0.50%, Mn 0.25%, Si 0.75%, Cr 1.25%, V 0.20%, W 2.50%, austenitized at 925\u00b0C (1695\u00b0F). Source: Uddeholm.<\/figcaption>\n      <\/figure>\n\n      <h2>Tempering<\/h2>\n      <p>Temper immediately after quenching to restore toughness and ductility. Tempering converts the as-quenched structure to tempered martensite, and the temperature is set by the hardness required.<\/p>\n      <ul class=\"aobo-list\">\n        <li><strong>Soak time:<\/strong> At least 2 hours per 25 mm (1 inch) of section thickness.<\/li>\n        <li><strong>Secondary tempering:<\/strong> A second temper is recommended to remove unstable retained austenite, improve yield strength and impact properties, and reduce the chance of later distortion or cracking in service.<\/li>\n        <li><strong>Cooling:<\/strong> Cool to room temperature between the first and second temper.<\/li>\n      <\/ul>\n      <p>Approximate hardness after oil quenching from 900\u00b0C to 955\u00b0C (1650\u00b0F to 1750\u00b0F):<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr><th>Tempering Temperature<\/th><th>Approximate Hardness (HRC)<\/th><\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>As Quenched<\/td><td>57 to 59<\/td><\/tr>\n            <tr><td>150\u00b0C (300\u00b0F)<\/td><td>56 to 58<\/td><\/tr>\n            <tr><td>205\u00b0C (400\u00b0F)<\/td><td>55 to 57<\/td><\/tr>\n            <tr><td>260\u00b0C (500\u00b0F)<\/td><td>54 to 56<\/td><\/tr>\n            <tr><td>315\u00b0C (600\u00b0F)<\/td><td>52 to 55<\/td><\/tr>\n            <tr><td>370\u00b0C (700\u00b0F)<\/td><td>50 to 53<\/td><\/tr>\n            <tr><td>425\u00b0C (800\u00b0F)<\/td><td>48 to 50<\/td><\/tr>\n            <tr><td>540\u00b0C (1000\u00b0F)<\/td><td>40 to 45<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>For maximum toughness, as in chisels and heavy-duty punches, S1 is usually tempered between 205\u00b0C and 315\u00b0C (400\u00b0F and 600\u00b0F). Higher tempering temperatures can be used for warmer service conditions, but hardness drops significantly.<\/p>\n\n      <h2>Common Heat Treatment Problems and Solutions<\/h2>\n      <section class=\"aobo-problem\">\n        <h3>Quenching cracks<\/h3>\n        <p>Two causes dominate. The first is delayed tempering, where the part sits at room temperature after quenching long enough for stress to exceed the material&#8217;s strength. The second is stress concentration at sharp corners, stamp marks, or rough-machined surfaces. Temper immediately, transferring the part to the tempering furnace while it still holds residual heat near 50\u00b0C to 70\u00b0C. At the design and machining stage, use rounded corners at critical junctions and keep surfaces to a high finish.<\/p>\n      <\/section>\n      <section class=\"aobo-problem\">\n        <h3>Low hardness<\/h3>\n        <p>Common causes are surface decarburization from an improper austenitizing atmosphere, insufficient austenitizing temperature or hold time, and weak quenching from oil that is too hot or poorly agitated.<\/p>\n      <\/section>\n      <section class=\"aobo-problem\">\n        <h3>Deformation<\/h3>\n        <p>Deformation usually comes from thermal shock caused by heating too quickly, or from residual machining stress released during heating. Preheat to 650\u00b0C before hardening, stress relieve rough-machined parts before quenching, and support long or complex parts to prevent sagging.<\/p>\n      <\/section>\n      <section class=\"aobo-problem\">\n        <h3>Decarburized soft layer<\/h3>\n        <p>A soft surface layer forms when oxygen or moisture in the furnace reacts with surface carbon and carries it off as carbon monoxide or carbon dioxide. A quick check is to draw a file across the surface; if it scratches easily, a soft layer is present. To prevent it, use a vacuum furnace or an inert-gas atmosphere (nitrogen or argon) to exclude oxygen, calibrate salt baths regularly to keep them neutral, and leave enough grinding allowance so the decarburized layer can be removed after heat treatment.<\/p>\n      <\/section>\n\n      <section class=\"aobo-cta\">\n        <div>\n          <h2>Need S1 tool steel for shock-resisting applications?<\/h2>\n          <p>S1 tool steel (1.2550, SKS41) is used where high toughness and shock resistance are required. Send your required size, quantity, condition, and application for a quote.<\/p>\n        <\/div>\n        <a class=\"aobo-btn popmake-16052\" href=\"javascript:void(0);\">Send Inquiry<\/a>\n      <\/section>\n    <\/main>\n  <\/div>\n<\/section>\n\n\n","protected":false},"excerpt":{"rendered":"<p>S1 Tool Steel Heat Treatment Guide S1 tool steel (1.2550, SKS41) is hardened by preheating to about 650\u00b0C (1200\u00b0F), austenitizing at 900\u00b0C to 955\u00b0C (1650\u00b0F to 1750\u00b0F), oil quenching to 50\u00b0C to 70\u00b0C, and tempering immediately while the part is still warm. As-quenched hardness runs about 57 to 59 HRC, and a double temper between [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"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":"","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-12240","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.6 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>S1 Tool Steel Heat Treatment\u00a0Guide - AoboSteel<\/title>\n<meta name=\"description\" content=\"Master the S1 tool steel heat treatment process. Learn expert steps for stress relief, hardening (900-955\u00b0C), oil quenching, and tempering to achieve 54-59 HRC. Prevent cracking and optimize toughness for shock-resistant tools.\" \/>\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\/es\/s1-tool-steel-heat-treatment-guide\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S1 Tool Steel Heat Treatment\u00a0Guide\" \/>\n<meta property=\"og:description\" content=\"Master the S1 tool steel heat treatment process. Learn expert steps for stress relief, hardening (900-955\u00b0C), oil quenching, and tempering to achieve 54-59 HRC. Prevent cracking and optimize toughness for shock-resistant tools.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aobosteel.com\/es\/s1-tool-steel-heat-treatment-guide\/\" \/>\n<meta property=\"og:site_name\" content=\"AoboSteel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=61565368220197\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-18T09:57:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data1\" content=\"6 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/\"},\"author\":{\"name\":\"Evan\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#\\\/schema\\\/person\\\/96118415c30ca6bb52eaf1127b052ef7\"},\"headline\":\"S1 Tool Steel Heat Treatment\u00a0Guide\",\"datePublished\":\"2026-01-14T05:32:41+00:00\",\"dateModified\":\"2026-09-18T09:57:19+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/\"},\"wordCount\":874,\"publisher\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/S1-tool-steel.avif\",\"inLanguage\":\"es\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/\",\"name\":\"S1 Tool Steel Heat Treatment\u00a0Guide - AoboSteel\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/S1-tool-steel.avif\",\"datePublished\":\"2026-01-14T05:32:41+00:00\",\"dateModified\":\"2026-09-18T09:57:19+00:00\",\"description\":\"Master the S1 tool steel heat treatment process. Learn expert steps for stress relief, hardening (900-955\u00b0C), oil quenching, and tempering to achieve 54-59 HRC. Prevent cracking and optimize toughness for shock-resistant tools.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#primaryimage\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/S1-tool-steel.avif\",\"contentUrl\":\"https:\\\/\\\/aobosteel.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/S1-tool-steel.avif\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/s1-tool-steel-heat-treatment-guide\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\\\/\\\/aobosteel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"S1 Tool Steel Heat Treatment\u00a0Guide\"}]},{\"@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\":\"es\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/#organization\",\"name\":\"AoboSteel\",\"url\":\"https:\\\/\\\/aobosteel.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@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\":\"es\",\"@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\\\/es\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"S1 Tool Steel Heat Treatment\u00a0Guide - AoboSteel","description":"Master the S1 tool steel heat treatment process. Learn expert steps for stress relief, hardening (900-955\u00b0C), oil quenching, and tempering to achieve 54-59 HRC. Prevent cracking and optimize toughness for shock-resistant tools.","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\/es\/s1-tool-steel-heat-treatment-guide\/","og_locale":"es_ES","og_type":"article","og_title":"S1 Tool Steel Heat Treatment\u00a0Guide","og_description":"Master the S1 tool steel heat treatment process. Learn expert steps for stress relief, hardening (900-955\u00b0C), oil quenching, and tempering to achieve 54-59 HRC. Prevent cracking and optimize toughness for shock-resistant tools.","og_url":"https:\/\/aobosteel.com\/es\/s1-tool-steel-heat-treatment-guide\/","og_site_name":"AoboSteel","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=61565368220197","article_modified_time":"2026-09-18T09:57:19+00:00","og_image":[{"url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Tiempo de lectura":"6 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"TechArticle","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#article","isPartOf":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/"},"author":{"name":"Evan","@id":"https:\/\/aobosteel.com\/#\/schema\/person\/96118415c30ca6bb52eaf1127b052ef7"},"headline":"S1 Tool Steel Heat Treatment\u00a0Guide","datePublished":"2026-01-14T05:32:41+00:00","dateModified":"2026-09-18T09:57:19+00:00","mainEntityOfPage":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/"},"wordCount":874,"publisher":{"@id":"https:\/\/aobosteel.com\/#organization"},"image":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif","inLanguage":"es"},{"@type":"WebPage","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/","url":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/","name":"S1 Tool Steel Heat Treatment\u00a0Guide - AoboSteel","isPartOf":{"@id":"https:\/\/aobosteel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#primaryimage"},"image":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif","datePublished":"2026-01-14T05:32:41+00:00","dateModified":"2026-09-18T09:57:19+00:00","description":"Master the S1 tool steel heat treatment process. Learn expert steps for stress relief, hardening (900-955\u00b0C), oil quenching, and tempering to achieve 54-59 HRC. Prevent cracking and optimize toughness for shock-resistant tools.","breadcrumb":{"@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/"]}]},{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#primaryimage","url":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif","contentUrl":"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/09\/S1-tool-steel.avif"},{"@type":"BreadcrumbList","@id":"https:\/\/aobosteel.com\/s1-tool-steel-heat-treatment-guide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/aobosteel.com\/"},{"@type":"ListItem","position":2,"name":"S1 Tool Steel Heat Treatment\u00a0Guide"}]},{"@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":"es"},{"@type":"Organization","@id":"https:\/\/aobosteel.com\/#organization","name":"AoboSteel","url":"https:\/\/aobosteel.com\/","logo":{"@type":"ImageObject","inLanguage":"es","@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":"es","@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\/es\/blog\/author\/admin\/"}]}},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/es\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"S1 Tool Steel Heat Treatment Guide S1 tool steel (1.2550, SKS41) is hardened by preheating to about 650\u00b0C (1200\u00b0F), austenitizing at 900\u00b0C to 955\u00b0C (1650\u00b0F to 1750\u00b0F), oil quenching to 50\u00b0C to 70\u00b0C, and tempering immediately while the part is still warm. As-quenched hardness runs about 57 to 59 HRC, and a double temper between&hellip;","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/es\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"S1 Tool Steel Heat Treatment Guide S1 tool steel (1.2550, SKS41) is hardened by preheating to about 650\u00b0C (1200\u00b0F), austenitizing at 900\u00b0C to 955\u00b0C (1650\u00b0F to 1750\u00b0F), oil quenching to 50\u00b0C to 70\u00b0C, and tempering immediately while the part is still warm. As-quenched hardness runs about 57 to 59 HRC, and a double temper between&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages\/12240","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/comments?post=12240"}],"version-history":[{"count":4,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages\/12240\/revisions"}],"predecessor-version":[{"id":19190,"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/pages\/12240\/revisions\/19190"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/es\/wp-json\/wp\/v2\/media?parent=12240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}