{"id":16787,"date":"2025-11-25T03:19:49","date_gmt":"2025-11-25T03:19:49","guid":{"rendered":"https:\/\/onmytoolings.com\/?page_id=16787"},"modified":"2025-11-25T03:42:36","modified_gmt":"2025-11-25T03:42:36","slug":"tabella-di-conversione-della-durezza-dellacciaio","status":"publish","type":"page","link":"https:\/\/onmytoolings.com\/it\/machining-calculator\/steel-hardness-conversion-calculator-table\/","title":{"rendered":"Tabella di conversione della durezza dell'acciaio"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"16787\" class=\"elementor elementor-16787\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-efc2be5 e-flex e-con-boxed e-con e-parent\" data-id=\"efc2be5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b398834 elementor-widget elementor-widget-html\" data-id=\"b398834\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<!DOCTYPE html>\r\n<html lang=\"en\">\r\n<head>\r\n    <meta charset=\"UTF-8\">\r\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\r\n    <title>Hardness Conversion Calculator & Table<\/title>\r\n    <meta name=\"description\" content=\"Free online hardness conversion calculator and hardness conversion table for steel. Convert between Brinell HB, Rockwell HRC\/HRB, and Vickers HV.\">\r\n    <meta name=\"keywords\" content=\"Hardness Conversion Table, hardness conversion calculator, steel hardness, HB, HRC, HRB, HV\">\r\n    <style>\r\n        body {\r\n            font-family: \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\r\n            background-color: #f4f4f9;\r\n            color: #333;\r\n            margin: 0;\r\n            padding: 0px;\r\n            line-height: 1.6;\r\n        }\r\n        .container {\r\n            max-width: 1400px;\r\n            margin: 0 auto;\r\n            background: #fff;\r\n            padding: 40px;\r\n            border-radius: 8px;\r\n            box-shadow: 0 4px 15px rgba(0,0,0,0.05);\r\n        }\r\n        h1 {\r\n            text-align: center;\r\n            color: #2c3e50;\r\n            margin-bottom: 10px;\r\n        }\r\n        .subtitle {\r\n            text-align: center;\r\n            color: #666;\r\n            margin-bottom: 40px;\r\n        }\r\n        h2 {\r\n            color: #2c3e50;\r\n            border-bottom: 2px solid #eee;\r\n            padding-bottom: 10px;\r\n            margin-top: 40px;\r\n        }\r\n        \r\n        \/* Calculator Styles *\/\r\n        .calculator-section {\r\n            background: #f8f9fa;\r\n            padding: 25px;\r\n            border-radius: 8px;\r\n            border: 1px solid #e9ecef;\r\n        }\r\n        .instructions {\r\n            margin-bottom: 20px;\r\n            font-size: 15px;\r\n            color: #555;\r\n        }\r\n        .input-group {\r\n            display: flex;\r\n            flex-wrap: wrap;\r\n            justify-content: space-between;\r\n            gap: 20px;\r\n            margin-bottom: 20px;\r\n        }\r\n        .input-item {\r\n            flex: 1 1 200px;\r\n            display: flex;\r\n            flex-direction: column;\r\n        }\r\n        label {\r\n            font-weight: 600;\r\n            margin-bottom: 8px;\r\n            color: #444;\r\n        }\r\n        input[type=\"number\"] {\r\n            padding: 12px;\r\n            border: 1px solid #ccc;\r\n            border-radius: 4px;\r\n            font-size: 16px;\r\n            transition: border-color 0.3s;\r\n        }\r\n        input[type=\"number\"]:focus {\r\n            border-color: #3498db;\r\n            outline: none;\r\n            box-shadow: 0 0 5px rgba(52,152,219,0.3);\r\n        }\r\n        .btn-area {\r\n            text-align: center;\r\n            margin-top: 25px;\r\n        }\r\n        button {\r\n            background-color: #3498db;\r\n            color: white;\r\n            border: none;\r\n            padding: 12px 35px;\r\n            font-size: 16px;\r\n            font-weight: bold;\r\n            border-radius: 4px;\r\n            cursor: pointer;\r\n            transition: background 0.3s;\r\n        }\r\n        button:hover {\r\n            background-color: #2980b9;\r\n        }\r\n        .btn-clear {\r\n            background-color: #95a5a6;\r\n            margin-left: 10px;\r\n        }\r\n        .btn-clear:hover {\r\n            background-color: #7f8c8d;\r\n        }\r\n        .note {\r\n            font-size: 13px;\r\n            color: #7f8c8d;\r\n            margin-top: 15px;\r\n            font-style: italic;\r\n        }\r\n\r\n        \/* Table Styles *\/\r\n        .table-container {\r\n            overflow-x: auto;\r\n        }\r\n        table {\r\n            width: 100%;\r\n            border-collapse: collapse;\r\n            margin-top: 20px;\r\n            font-size: 14px;\r\n        }\r\n        th, td {\r\n            padding: 12px 15px;\r\n            text-align: center;\r\n            border-bottom: 1px solid #ddd;\r\n        }\r\n        th {\r\n            background-color: #34495e;\r\n            color: white;\r\n            font-weight: 600;\r\n        }\r\n        tr:nth-child(even) {\r\n            background-color: #f8f9fa;\r\n        }\r\n        tr:hover {\r\n            background-color: #e8f4f8;\r\n        }\r\n    <\/style>\r\n<\/head>\r\n<body>\r\n\r\n<div class=\"container\">\r\n    <h1>Steel Hardness Conversion<\/h1>\r\n    <p class=\"subtitle\">Quickly convert between HB, HRC, HRB, and HV scales.<\/p>\r\n\r\n    <div class=\"calculator-section\">\r\n        <h2>Hardness Conversion Calculator<\/h2>\r\n        <p class=\"instructions\">\r\n            <strong>How to use:<\/strong> Enter a value into any single field below (e.g., if you know the HRC, type it in the \"Rockwell C\" box) and click <strong>\"Calculate\"<\/strong>. The tool will automatically find the equivalent values for the other scales.\r\n        <\/p>\r\n        \r\n        <div class=\"input-group\">\r\n            <div class=\"input-item\">\r\n                <label for=\"inputHV\">Vickers (HV)<\/label>\r\n                <input type=\"number\" id=\"inputHV\" placeholder=\"e.g. 697\">\r\n            <\/div>\r\n            <div class=\"input-item\">\r\n                <label for=\"inputHB\">Brinell (HB)<\/label>\r\n                <input type=\"number\" id=\"inputHB\" placeholder=\"e.g. 654\">\r\n            <\/div>\r\n            <div class=\"input-item\">\r\n                <label for=\"inputHRC\">Rockwell C (HRC)<\/label>\r\n                <input type=\"number\" id=\"inputHRC\" placeholder=\"e.g. 60\">\r\n            <\/div>\r\n            <div class=\"input-item\">\r\n                <label for=\"inputHRB\">Rockwell B (HRB)<\/label>\r\n                <input type=\"number\" id=\"inputHRB\" placeholder=\"e.g. -\">\r\n            <\/div>\r\n        <\/div>\r\n        \r\n        <div class=\"btn-area\">\r\n            <button onclick=\"calculateHardness()\">Calculate<\/button>\r\n            <button class=\"btn-clear\" onclick=\"clearFields()\">Clear<\/button>\r\n        <\/div>\r\n        \r\n        <p class=\"note\">\r\n            Note: Conversions are approximate and based on standard steel hardness tables (ASTM E140). Results are based on the nearest available standard value.\r\n        <\/p>\r\n    <\/div>\r\n\r\n    <div>\r\n        <h2>Hardness Conversion Table<\/h2>\r\n        <p class=\"instructions\">\r\n            This table lists the approximate relationship between Brinell, Vickers, and Rockwell hardness scales, as well as the approximate Tensile Strength for steel.\r\n        <\/p>\r\n        <div class=\"table-container\">\r\n            <table id=\"hardnessTable\">\r\n                <thead>\r\n                    <tr>\r\n                        <th>Vickers (HV)<\/th>\r\n                        <th>Brinell (HB)<\/th>\r\n                        <th>Rockwell C (HRC)<\/th>\r\n                        <th>Rockwell B (HRB)<\/th>\r\n                        <th>Tensile Strength (N\/mm\u00b2)<\/th>\r\n                    <\/tr>\r\n                <\/thead>\r\n                <tbody>\r\n                    <\/tbody>\r\n            <\/table>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n<script>\r\n    \/\/ Data Source: Based on standard steel conversion charts\r\n    \/\/ \"-\" indicates the value is outside the reliable range for that scale.\r\n    const hardnessData = [\r\n        { hv: 940, hb: \"-\", hrc: 68, hrb: \"-\", tensile: \"-\" },\r\n        { hv: 900, hb: \"-\", hrc: 67, hrb: \"-\", tensile: \"-\" },\r\n        { hv: 865, hb: \"-\", hrc: 66, hrb: \"-\", tensile: \"-\" },\r\n        { hv: 832, hb: 739, hrc: 65, hrb: \"-\", tensile: \"-\" },\r\n        { hv: 800, hb: 722, hrc: 64, hrb: \"-\", tensile: \"-\" },\r\n        { hv: 772, hb: 705, hrc: 63, hrb: \"-\", tensile: \"-\" },\r\n        { hv: 746, hb: 688, hrc: 62, hrb: \"-\", tensile: \"-\" },\r\n        { hv: 720, hb: 670, hrc: 61, hrb: \"-\", tensile: \"-\" },\r\n        { hv: 697, hb: 654, hrc: 60, hrb: \"-\", tensile: 2360 },\r\n        { hv: 674, hb: 634, hrc: 59, hrb: \"-\", tensile: 2290 },\r\n        { hv: 653, hb: 615, hrc: 58, hrb: \"-\", tensile: 2190 },\r\n        { hv: 633, hb: 595, hrc: 57, hrb: \"-\", tensile: 2120 },\r\n        { hv: 613, hb: 577, hrc: 56, hrb: \"-\", tensile: 2050 },\r\n        { hv: 595, hb: 560, hrc: 55, hrb: 120, tensile: 1985 },\r\n        { hv: 577, hb: 543, hrc: 54, hrb: 119, tensile: 1915 },\r\n        { hv: 560, hb: 525, hrc: 53, hrb: 118, tensile: 1850 },\r\n        { hv: 544, hb: 512, hrc: 52, hrb: 117, tensile: 1790 },\r\n        { hv: 528, hb: 496, hrc: 51, hrb: 117, tensile: 1740 },\r\n        { hv: 513, hb: 481, hrc: 50, hrb: 116, tensile: 1680 },\r\n        { hv: 498, hb: 469, hrc: 49, hrb: 115, tensile: 1630 },\r\n        { hv: 484, hb: 455, hrc: 48, hrb: 115, tensile: 1585 },\r\n        { hv: 471, hb: 443, hrc: 47, hrb: 114, tensile: 1535 },\r\n        { hv: 458, hb: 432, hrc: 46, hrb: 114, tensile: 1495 },\r\n        { hv: 446, hb: 421, hrc: 45, hrb: 113, tensile: 1455 },\r\n        { hv: 434, hb: 409, hrc: 44, hrb: 113, tensile: 1415 },\r\n        { hv: 423, hb: 400, hrc: 43, hrb: 112, tensile: 1380 },\r\n        { hv: 412, hb: 390, hrc: 42, hrb: 112, tensile: 1350 },\r\n        { hv: 402, hb: 381, hrc: 41, hrb: 111, tensile: 1315 },\r\n        { hv: 392, hb: 371, hrc: 40, hrb: 110, tensile: 1280 },\r\n        { hv: 382, hb: 362, hrc: 39, hrb: 109, tensile: 1250 },\r\n        { hv: 372, hb: 353, hrc: 38, hrb: 109, tensile: 1220 },\r\n        { hv: 363, hb: 344, hrc: 37, hrb: 108, tensile: 1190 },\r\n        { hv: 354, hb: 336, hrc: 36, hrb: 108, tensile: 1165 },\r\n        { hv: 345, hb: 327, hrc: 35, hrb: 107, tensile: 1135 },\r\n        { hv: 336, hb: 319, hrc: 34, hrb: 107, tensile: 1110 },\r\n        { hv: 327, hb: 311, hrc: 33, hrb: 106, tensile: 1080 },\r\n        { hv: 318, hb: 301, hrc: 32, hrb: 105, tensile: 1055 },\r\n        { hv: 310, hb: 294, hrc: 31, hrb: 105, tensile: 1030 },\r\n        { hv: 302, hb: 286, hrc: 30, hrb: 104, tensile: 1005 },\r\n        { hv: 294, hb: 279, hrc: 29, hrb: 104, tensile: 980 },\r\n        { hv: 286, hb: 271, hrc: 28, hrb: 103, tensile: 955 },\r\n        { hv: 279, hb: 264, hrc: 27, hrb: 102, tensile: 935 },\r\n        { hv: 272, hb: 258, hrc: 26, hrb: 102, tensile: 915 },\r\n        { hv: 266, hb: 253, hrc: 25, hrb: 101, tensile: 895 },\r\n        { hv: 260, hb: 247, hrc: 24, hrb: 100, tensile: 875 },\r\n        { hv: 254, hb: 243, hrc: 23, hrb: 99, tensile: 855 },\r\n        { hv: 248, hb: 237, hrc: 22, hrb: 99, tensile: 840 },\r\n        { hv: 243, hb: 231, hrc: 21, hrb: 98, tensile: 820 },\r\n        { hv: 238, hb: 226, hrc: 20, hrb: 97, tensile: 800 },\r\n        { hv: 230, hb: 219, hrc: 18, hrb: 96, tensile: 770 },\r\n        { hv: 220, hb: 209, hrc: 16, hrb: 95, tensile: 740 },\r\n        { hv: 210, hb: 199, hrc: 14, hrb: 93, tensile: 705 },\r\n        { hv: 200, hb: 190, hrc: 12, hrb: 91, tensile: 675 },\r\n        { hv: 190, hb: 181, hrc: 10, hrb: 89, tensile: 640 },\r\n        { hv: 180, hb: 171, hrc: \"-\", hrb: 87, tensile: 605 },\r\n        { hv: 170, hb: 162, hrc: \"-\", hrb: 85, tensile: 570 },\r\n        { hv: 160, hb: 152, hrc: \"-\", hrb: 82, tensile: 540 },\r\n        { hv: 150, hb: 143, hrc: \"-\", hrb: 79, tensile: 505 },\r\n        { hv: 140, hb: 133, hrc: \"-\", hrb: 75, tensile: 470 },\r\n        { hv: 130, hb: 124, hrc: \"-\", hrb: 71, tensile: 435 },\r\n        { hv: 120, hb: 114, hrc: \"-\", hrb: 66, tensile: 405 },\r\n        { hv: 110, hb: 105, hrc: \"-\", hrb: 60, tensile: 370 },\r\n        { hv: 100, hb: 95, hrc: \"-\", hrb: 55, tensile: 340 }\r\n    ];\r\n\r\n    function initTable() {\r\n        const tbody = document.querySelector('#hardnessTable tbody');\r\n        hardnessData.forEach(row => {\r\n            const tr = document.createElement('tr');\r\n            tr.innerHTML = `\r\n                <td>${row.hv}<\/td>\r\n                <td>${row.hb}<\/td>\r\n                <td>${row.hrc}<\/td>\r\n                <td>${row.hrb}<\/td>\r\n                <td>${row.tensile}<\/td>\r\n            `;\r\n            tbody.appendChild(tr);\r\n        });\r\n    }\r\n\r\n    function calculateHardness() {\r\n        let hv = document.getElementById('inputHV').value;\r\n        let hb = document.getElementById('inputHB').value;\r\n        let hrc = document.getElementById('inputHRC').value;\r\n        let hrb = document.getElementById('inputHRB').value;\r\n\r\n        let target = null;\r\n        let type = '';\r\n\r\n        if (hv) { target = parseFloat(hv); type = 'hv'; }\r\n        else if (hb) { target = parseFloat(hb); type = 'hb'; }\r\n        else if (hrc) { target = parseFloat(hrc); type = 'hrc'; }\r\n        else if (hrb) { target = parseFloat(hrb); type = 'hrb'; }\r\n\r\n        if (target === null) {\r\n            alert(\"Please enter at least one value to calculate.\");\r\n            return;\r\n        }\r\n\r\n        let validRows = hardnessData.filter(row => row[type] !== \"-\");\r\n        \r\n        if (validRows.length === 0) {\r\n            alert(\"The value you entered is out of range for this hardness scale.\");\r\n            return;\r\n        }\r\n\r\n        \/\/ Find closest value\r\n        let closestRow = validRows.reduce((prev, curr) => {\r\n            return (Math.abs(curr[type] - target) < Math.abs(prev[type] - target) ? curr : prev);\r\n        });\r\n\r\n        \/\/ Populate fields\r\n        document.getElementById('inputHV').value = closestRow.hv;\r\n        document.getElementById('inputHB').value = closestRow.hb;\r\n        document.getElementById('inputHRC').value = closestRow.hrc;\r\n        document.getElementById('inputHRB').value = closestRow.hrb;\r\n    }\r\n\r\n    function clearFields() {\r\n        document.querySelectorAll('input[type=\"number\"]').forEach(input => input.value = '');\r\n    }\r\n\r\n    window.onload = initTable;\r\n<\/script>\r\n\r\n<\/body>\r\n<\/html>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-858af12 e-flex e-con-boxed e-con e-parent\" data-id=\"858af12\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-59e8c75 elementor-position-inline-start elementor-view-default elementor-mobile-position-block-start elementor-widget elementor-widget-icon-box\" data-id=\"59e8c75\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\n\t\t\t\t<a href=\"https:\/\/onmytoolings.com\/wp-content\/uploads\/2025\/11\/Hardness-Conversion-Table.pdf\" class=\"elementor-icon\" tabindex=\"-1\" target=\"_blank\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-file-pdf\" viewBox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M369.9 97.9L286 14C277 5 264.8-.1 252.1-.1H48C21.5 0 0 21.5 0 48v416c0 26.5 21.5 48 48 48h288c26.5 0 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here.\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Hardness Conversion Calculator &#038; Table Steel Hardness Conversion Quickly convert between HB, HRC, HRB, and HV scales. Hardness Conversion Calculator How to use: Enter a value into any single field below (e.g., if you know the HRC, type it in the &#8220;Rockwell C&#8221; box) and click &#8220;Calculate&#8221;. The tool will automatically find the equivalent values [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":15030,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-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":"","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-16787","page","type-page","status-publish","hentry"],"acf":[],"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":"Jiang.xu","author_link":"https:\/\/onmytoolings.com\/it\/author\/bigsunjianggmail-com\/"},"uagb_comment_info":0,"uagb_excerpt":"Hardness Conversion Calculator &#038; Table Steel Hardness Conversion Quickly convert between HB, HRC, HRB, and HV scales. Hardness Conversion Calculator How to use: Enter a value into any single field below (e.g., if you know the HRC, type it in the &#8220;Rockwell C&#8221; box) and click &#8220;Calculate&#8221;. 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