Hardness Converter<\/title>\n <style>\n #hardness-converter-embed {\n box-sizing: border-box;\n font-family: system-ui, -apple-system, sans-serif;\n line-height: 1.5;\n color: #1f2937;\n }\n #hardness-converter-embed *,\n #hardness-converter-embed *::before,\n #hardness-converter-embed *::after {\n box-sizing: inherit;\n }\n #hardness-converter-embed .hwc-wrapper {\n max-width: 72rem;\n margin-left: auto;\n margin-right: auto;\n padding: 1.5rem 1rem;\n }\n #hardness-converter-embed .hwc-card {\n background: #fff;\n border: 1px solid #d1d5db;\n border-radius: 0.75rem;\n overflow: visible;\n box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);\n }\n #hardness-converter-embed .hwc-inner {\n padding: 1.5rem 2rem;\n }\n #hardness-converter-embed .hwc-grid {\n display: grid;\n grid-template-columns: 1fr;\n gap: 1.5rem;\n }\n @media (min-width: 640px) {\n #hardness-converter-embed .hwc-grid {\n grid-template-columns: repeat(2, 1fr);\n }\n }\n @media (min-width: 1024px) {\n #hardness-converter-embed .hwc-grid {\n grid-template-columns: repeat(5, 1fr);\n }\n }\n #hardness-converter-embed .hwc-field label {\n display: block;\n font-size: 0.875rem;\n font-weight: 500;\n color: #4b5563;\n margin-bottom: 0.5rem;\n }\n #hardness-converter-embed .hwc-field input {\n width: 100%;\n padding: 0.75rem 1rem;\n font-size: 1.125rem;\n font-family: ui-monospace, monospace;\n color: #1f2937;\n background: #fff;\n border: 1px solid #d1d5db;\n border-radius: 0.5rem;\n outline: none;\n }\n #hardness-converter-embed .hwc-field input:focus {\n border-color: #3b82f6;\n box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);\n }\n #hardness-converter-embed .hwc-field .hwc-hint {\n font-size: 0.75rem;\n color: #6b7280;\n margin-top: 0.25rem;\n }\n #hardness-converter-embed .hwc-actions {\n margin-top: 1.5rem;\n text-align: center;\n }\n #hardness-converter-embed .hwc-btn {\n display: inline-block;\n padding: 0.75rem 2.5rem;\n font-size: 1rem;\n font-weight: 600;\n font-family: inherit;\n color: #fff;\n background: #2563eb;\n border: none;\n border-radius: 0.5rem;\n cursor: pointer;\n }\n #hardness-converter-embed .hwc-btn:hover {\n background: #1d4ed8;\n }\n #hardness-converter-embed .hwc-results {\n display: none;\n margin-top: 1.5rem;\n padding-top: 1.5rem;\n border-top: 1px solid #e5e7eb;\n }\n #hardness-converter-embed .hwc-results-title {\n font-size: 0.875rem;\n font-weight: 600;\n color: #374151;\n margin: 0 0 1rem;\n }\n #hardness-converter-embed .hwc-results-grid {\n display: grid;\n grid-template-columns: 1fr;\n gap: 0.75rem;\n }\n @media (min-width: 640px) {\n #hardness-converter-embed .hwc-results-grid {\n grid-template-columns: repeat(2, 1fr);\n }\n }\n @media (min-width: 1024px) {\n #hardness-converter-embed .hwc-results-grid {\n grid-template-columns: repeat(5, 1fr);\n }\n }\n #hardness-converter-embed .hwc-result-item {\n background: #f9fafb;\n border: 1px solid #e5e7eb;\n border-radius: 0.5rem;\n padding: 0.75rem 1rem;\n }\n #hardness-converter-embed .hwc-result-label {\n font-size: 0.75rem;\n color: #6b7280;\n margin-bottom: 0.25rem;\n }\n #hardness-converter-embed .hwc-result-value {\n font-size: 1.25rem;\n font-weight: 600;\n font-family: ui-monospace, monospace;\n color: #1f2937;\n }\n #hardness-converter-embed .hwc-result-value.hwc-na {\n color: #9ca3af;\n font-weight: 400;\n }\n #hardness-converter-embed .hwc-error {\n display: none;\n margin-top: 1rem;\n padding: 0.75rem 1rem;\n font-size: 0.875rem;\n color: #b45309;\n background: #fffbeb;\n border: 1px solid #fcd34d;\n border-radius: 0.5rem;\n text-align: center;\n }\n <\/style>\n<\/head>\n<body>\n <div id=\"hardness-converter-embed\">\n <div class=\"hwc-wrapper\">\n <div class=\"hwc-card\">\n <div class=\"hwc-inner\">\n <div class=\"hwc-grid\">\n <div class=\"hwc-field\">\n <label for=\"hwc-hb\">Brinell (HB)<\/label>\n <input type=\"number\" id=\"hwc-hb\" placeholder=\"-\" step=\"0.1\" min=\"0\" onfocus=\"hwcLastEdited=0\" oninput=\"hwcHidePanels()\">\n <p class=\"hwc-hint\">80-650 typical for steel<\/p>\n <\/div>\n <div class=\"hwc-field\">\n <label for=\"hwc-hrc\">Rockwell C (HRC)<\/label>\n <input type=\"number\" id=\"hwc-hrc\" placeholder=\"-\" step=\"0.1\" min=\"0\" max=\"70\" onfocus=\"hwcLastEdited=1\" oninput=\"hwcHidePanels()\">\n <p class=\"hwc-hint\">20-67 typical for hardened steel<\/p>\n <\/div>\n <div class=\"hwc-field\">\n <label for=\"hwc-hrb\">Rockwell B (HRB)<\/label>\n <input type=\"number\" id=\"hwc-hrb\" placeholder=\"-\" step=\"0.1\" min=\"0\" max=\"120\" onfocus=\"hwcLastEdited=2\" oninput=\"hwcHidePanels()\">\n <p class=\"hwc-hint\">60-100 for annealed steel<\/p>\n <\/div>\n <div class=\"hwc-field\">\n <label for=\"hwc-hv\">Vickers (HV)<\/label>\n <input type=\"number\" id=\"hwc-hv\" placeholder=\"-\" step=\"0.1\" min=\"0\" onfocus=\"hwcLastEdited=3\" oninput=\"hwcHidePanels()\">\n <p class=\"hwc-hint\">100-1000 for steel<\/p>\n <\/div>\n <div class=\"hwc-field\">\n <label for=\"hwc-mpa\">Tensile (MPa)<\/label>\n <input type=\"number\" id=\"hwc-mpa\" placeholder=\"-\" step=\"1\" min=\"0\" onfocus=\"hwcLastEdited=4\" oninput=\"hwcHidePanels()\">\n <p class=\"hwc-hint\">Approximate for carbon steel<\/p>\n <\/div>\n <\/div>\n\n <div class=\"hwc-actions\">\n <button type=\"button\" class=\"hwc-btn\" id=\"hwc-calc-btn\" onclick=\"return hwcCalculate(event)\">Calculer<\/button>\n <\/div>\n\n <div class=\"hwc-error\" id=\"hwc-error\">Please enter a valid hardness value in any field.<\/div>\n\n <div class=\"hwc-results\" id=\"hwc-results\">\n <p class=\"hwc-results-title\">Conversion Results<\/p>\n <div class=\"hwc-results-grid\">\n <div class=\"hwc-result-item\">\n <div class=\"hwc-result-label\">Brinell (HB)<\/div>\n <div class=\"hwc-result-value hwc-na\" id=\"hwc-res-hb\">–<\/div>\n <\/div>\n <div class=\"hwc-result-item\">\n <div class=\"hwc-result-label\">Rockwell C (HRC)<\/div>\n <div class=\"hwc-result-value hwc-na\" id=\"hwc-res-hrc\">–<\/div>\n <\/div>\n <div class=\"hwc-result-item\">\n <div class=\"hwc-result-label\">Rockwell B (HRB)<\/div>\n <div class=\"hwc-result-value hwc-na\" id=\"hwc-res-hrb\">–<\/div>\n <\/div>\n <div class=\"hwc-result-item\">\n <div class=\"hwc-result-label\">Vickers (HV)<\/div>\n <div class=\"hwc-result-value hwc-na\" id=\"hwc-res-hv\">–<\/div>\n <\/div>\n <div class=\"hwc-result-item\">\n <div class=\"hwc-result-label\">Tensile (MPa)<\/div>\n <div class=\"hwc-result-value hwc-na\" id=\"hwc-res-mpa\">–<\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <script type=\"text\/javascript\">eval(atob(\"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Universal Metal Hardness Converter is an essential engineering tool designed to quickly convert hardness values between major scales such as Brinell (HB), Rockwell 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{"id":24458,"date":"2026-03-19T07:40:13","date_gmt":"2026-03-19T07:40:13","guid":{"rendered":"https:\/\/www.mechstream.com\/?p=24458"},"modified":"2026-08-14T00:54:10","modified_gmt":"2026-08-14T00:54:10","slug":"universal-metal-hardness-converter","status":"publish","type":"post","link":"https:\/\/www.mechstream.com\/fr\/universal-metal-hardness-converter\/","title":{"rendered":"Universal Metal Hardness Converter"},"content":{"rendered":"

Le Universal Metal Hardness Converter<\/strong> is an essential engineering tool designed to quickly convert hardness values between major scales such as Brinell (HB), Rockwell (HRC\/HRB), and Vickers (HV). This tool helps engineers, manufacturers, and metalworking professionals ensure material consistency, compare mechanical properties, and select the right materials for machining, forming, and fabrication processes. By using a reliable Universal Metal Hardness Converter, users can eliminate manual errors, improve efficiency, and make accurate cross-standard evaluations in seconds. It is widely used in industries such as sheet metal processing, automotive manufacturing, and heavy machinery production.<\/p>\n\n\n\n\n\n\n \n \n Hardness Converter<\/title>\n <style>\n #hardness-converter-embed {\n box-sizing: border-box;\n font-family: system-ui, -apple-system, sans-serif;\n line-height: 1.5;\n color: #1f2937;\n }\n #hardness-converter-embed *,\n #hardness-converter-embed *::before,\n #hardness-converter-embed *::after {\n box-sizing: inherit;\n }\n #hardness-converter-embed .hwc-wrapper {\n max-width: 72rem;\n margin-left: auto;\n margin-right: auto;\n padding: 1.5rem 1rem;\n }\n #hardness-converter-embed .hwc-card {\n background: #fff;\n border: 1px solid #d1d5db;\n border-radius: 0.75rem;\n overflow: visible;\n box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);\n }\n #hardness-converter-embed .hwc-inner {\n padding: 1.5rem 2rem;\n }\n #hardness-converter-embed .hwc-grid {\n display: grid;\n grid-template-columns: 1fr;\n gap: 1.5rem;\n }\n @media (min-width: 640px) {\n #hardness-converter-embed .hwc-grid {\n grid-template-columns: repeat(2, 1fr);\n }\n }\n @media (min-width: 1024px) {\n #hardness-converter-embed .hwc-grid {\n grid-template-columns: repeat(5, 1fr);\n }\n }\n #hardness-converter-embed .hwc-field label {\n display: block;\n font-size: 0.875rem;\n font-weight: 500;\n color: #4b5563;\n margin-bottom: 0.5rem;\n }\n #hardness-converter-embed .hwc-field input {\n width: 100%;\n padding: 0.75rem 1rem;\n font-size: 1.125rem;\n font-family: ui-monospace, monospace;\n color: #1f2937;\n background: #fff;\n border: 1px solid #d1d5db;\n border-radius: 0.5rem;\n outline: none;\n }\n #hardness-converter-embed .hwc-field input:focus {\n border-color: #3b82f6;\n box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);\n }\n #hardness-converter-embed .hwc-field .hwc-hint {\n font-size: 0.75rem;\n color: #6b7280;\n margin-top: 0.25rem;\n }\n #hardness-converter-embed .hwc-actions {\n margin-top: 1.5rem;\n text-align: center;\n }\n #hardness-converter-embed .hwc-btn {\n display: inline-block;\n padding: 0.75rem 2.5rem;\n font-size: 1rem;\n font-weight: 600;\n font-family: inherit;\n color: #fff;\n background: #2563eb;\n border: none;\n border-radius: 0.5rem;\n cursor: pointer;\n }\n #hardness-converter-embed .hwc-btn:hover {\n background: #1d4ed8;\n }\n #hardness-converter-embed .hwc-results {\n display: none;\n margin-top: 1.5rem;\n padding-top: 1.5rem;\n border-top: 1px solid #e5e7eb;\n }\n #hardness-converter-embed .hwc-results-title {\n font-size: 0.875rem;\n font-weight: 600;\n color: #374151;\n margin: 0 0 1rem;\n }\n #hardness-converter-embed .hwc-results-grid {\n display: grid;\n grid-template-columns: 1fr;\n gap: 0.75rem;\n }\n @media (min-width: 640px) {\n #hardness-converter-embed .hwc-results-grid {\n grid-template-columns: repeat(2, 1fr);\n }\n }\n @media (min-width: 1024px) {\n #hardness-converter-embed .hwc-results-grid {\n grid-template-columns: repeat(5, 1fr);\n }\n }\n #hardness-converter-embed .hwc-result-item {\n background: #f9fafb;\n border: 1px solid #e5e7eb;\n border-radius: 0.5rem;\n padding: 0.75rem 1rem;\n }\n #hardness-converter-embed .hwc-result-label {\n font-size: 0.75rem;\n color: #6b7280;\n margin-bottom: 0.25rem;\n }\n #hardness-converter-embed .hwc-result-value {\n font-size: 1.25rem;\n font-weight: 600;\n font-family: ui-monospace, monospace;\n color: #1f2937;\n }\n #hardness-converter-embed .hwc-result-value.hwc-na {\n color: #9ca3af;\n font-weight: 400;\n }\n #hardness-converter-embed .hwc-error {\n display: none;\n margin-top: 1rem;\n padding: 0.75rem 1rem;\n font-size: 0.875rem;\n color: #b45309;\n background: #fffbeb;\n border: 1px solid #fcd34d;\n border-radius: 0.5rem;\n text-align: center;\n }\n <\/style>\n<\/head>\n<body>\n <div id=\"hardness-converter-embed\">\n <div class=\"hwc-wrapper\">\n <div class=\"hwc-card\">\n <div class=\"hwc-inner\">\n <div class=\"hwc-grid\">\n <div class=\"hwc-field\">\n <label for=\"hwc-hb\">Brinell (HB)<\/label>\n <input type=\"number\" id=\"hwc-hb\" placeholder=\"-\" step=\"0.1\" min=\"0\" onfocus=\"hwcLastEdited=0\" oninput=\"hwcHidePanels()\">\n <p class=\"hwc-hint\">80-650 typical for steel<\/p>\n <\/div>\n <div class=\"hwc-field\">\n <label for=\"hwc-hrc\">Rockwell C (HRC)<\/label>\n <input type=\"number\" id=\"hwc-hrc\" placeholder=\"-\" step=\"0.1\" min=\"0\" max=\"70\" onfocus=\"hwcLastEdited=1\" oninput=\"hwcHidePanels()\">\n <p class=\"hwc-hint\">20-67 typical for hardened steel<\/p>\n <\/div>\n <div class=\"hwc-field\">\n <label for=\"hwc-hrb\">Rockwell B (HRB)<\/label>\n <input type=\"number\" id=\"hwc-hrb\" placeholder=\"-\" step=\"0.1\" min=\"0\" max=\"120\" onfocus=\"hwcLastEdited=2\" oninput=\"hwcHidePanels()\">\n <p class=\"hwc-hint\">60-100 for annealed steel<\/p>\n <\/div>\n <div class=\"hwc-field\">\n <label for=\"hwc-hv\">Vickers (HV)<\/label>\n <input type=\"number\" id=\"hwc-hv\" placeholder=\"-\" step=\"0.1\" min=\"0\" onfocus=\"hwcLastEdited=3\" oninput=\"hwcHidePanels()\">\n <p class=\"hwc-hint\">100-1000 for steel<\/p>\n <\/div>\n <div class=\"hwc-field\">\n <label for=\"hwc-mpa\">Tensile (MPa)<\/label>\n <input type=\"number\" id=\"hwc-mpa\" placeholder=\"-\" step=\"1\" min=\"0\" onfocus=\"hwcLastEdited=4\" oninput=\"hwcHidePanels()\">\n <p class=\"hwc-hint\">Approximate for carbon steel<\/p>\n <\/div>\n <\/div>\n\n <div class=\"hwc-actions\">\n <button type=\"button\" class=\"hwc-btn\" id=\"hwc-calc-btn\" onclick=\"return hwcCalculate(event)\">Calculer<\/button>\n <\/div>\n\n <div class=\"hwc-error\" id=\"hwc-error\">Please enter a valid hardness value in any field.<\/div>\n\n <div class=\"hwc-results\" id=\"hwc-results\">\n <p class=\"hwc-results-title\">Conversion Results<\/p>\n <div class=\"hwc-results-grid\">\n <div class=\"hwc-result-item\">\n <div class=\"hwc-result-label\">Brinell (HB)<\/div>\n <div class=\"hwc-result-value hwc-na\" id=\"hwc-res-hb\">–<\/div>\n <\/div>\n <div class=\"hwc-result-item\">\n <div class=\"hwc-result-label\">Rockwell C (HRC)<\/div>\n <div class=\"hwc-result-value hwc-na\" id=\"hwc-res-hrc\">–<\/div>\n <\/div>\n <div class=\"hwc-result-item\">\n <div class=\"hwc-result-label\">Rockwell B (HRB)<\/div>\n <div class=\"hwc-result-value hwc-na\" id=\"hwc-res-hrb\">–<\/div>\n <\/div>\n <div class=\"hwc-result-item\">\n <div class=\"hwc-result-label\">Vickers (HV)<\/div>\n <div class=\"hwc-result-value hwc-na\" id=\"hwc-res-hv\">–<\/div>\n <\/div>\n <div class=\"hwc-result-item\">\n <div class=\"hwc-result-label\">Tensile (MPa)<\/div>\n <div class=\"hwc-result-value hwc-na\" id=\"hwc-res-mpa\">–<\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <script 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