{"id":49469,"date":"2026-07-07T10:00:38","date_gmt":"2026-07-07T08:00:38","guid":{"rendered":"https:\/\/www.bonomiacciai.it\/?p=49469"},"modified":"2026-06-03T14:50:04","modified_gmt":"2026-06-03T12:50:04","slug":"durezza-acciaio-resistenza-materiale","status":"publish","type":"post","link":"https:\/\/www.bonomiacciai.it\/en\/durezza-acciaio-resistenza-materiale\/","title":{"rendered":"Steel hardness: material resistance"},"content":{"rendered":"<div class=\"wpb-content-wrapper\" id=\"wpb-content-root\">[vc_row el_class=&#8221;ba-intro-lead&#8221;][vc_column][vc_column_text css=&#8221;&#8221;]After analyzing the chemical identity of steel, we move on to another fundamental parameter found in the certificate: <strong>steel hardness<\/strong>.<\/p>\n<p>Hardness indicates the ability of a material to resist penetration, surface deformation and, more generally, external mechanical stresses.<\/p>\n<p>In the quality control of special steels, this value is particularly important because it provides concrete indications of the material\u2019s behavior during:<\/p>\n<ul>\n<li>machining<\/li>\n<li>heat treatments<\/li>\n<li>final use<\/li>\n<li>applications subject to wear or high loads<\/li>\n<\/ul>\n<p>\ud83d\udc49 For this reason, hardness tests are among the most widely used tools for verifying the quality and conformity of steel.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/6&#8243;][\/vc_column][vc_column width=&#8221;2\/3&#8243;]<div class=\"wpex-slider-preloaderimg wpex-relative\"><img width=\"800\" height=\"800\" src=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell.jpg\" class=\"skip-lazy\" alt=\"Rockwell hardness test\" data-no-lazy=\"1\" srcset=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell.jpg 800w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell-300x300.jpg 300w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell-150x150.jpg 150w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/div><div class=\"vcex-image-slider vcex-module wpex-slider slider-pro wpex-clr\" data-thumbnails=\"true\"><div class=\"wpex-slider-slides sp-slides\"><div class=\"wpex-slider-slide sp-slide\"><div class=\"wpex-slider-media wpex-relative\"><img width=\"800\" height=\"800\" src=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell.jpg\" class=\"skip-lazy\" alt=\"Rockwell hardness test\" data-no-lazy=\"1\" srcset=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell.jpg 800w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell-300x300.jpg 300w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell-150x150.jpg 150w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><div class=\"wpex-slider-caption sp-black sp-layer\"data-position=\"bottomCenter\" data-show-delay=\"500\" data-show-transition=\"up\" data-hide-transition=\"down\" data-width=\"100%\"><p>Rockwell hardness test<\/p>\n<\/div><\/div><\/div><div class=\"wpex-slider-slide sp-slide\"><div class=\"wpex-slider-media wpex-relative\"><img width=\"800\" height=\"800\" src=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Brinell.jpg\" class=\"skip-lazy\" alt=\"Brinell hardness test\" data-no-lazy=\"1\" srcset=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Brinell.jpg 800w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Brinell-300x300.jpg 300w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Brinell-150x150.jpg 150w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Brinell-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><div class=\"wpex-slider-caption sp-black sp-layer\"data-position=\"bottomCenter\" data-show-delay=\"500\" data-show-transition=\"up\" data-hide-transition=\"down\" data-width=\"100%\"><p>Brinell hardness test<\/p>\n<\/div><\/div><\/div><div class=\"wpex-slider-slide sp-slide\"><div class=\"wpex-slider-media wpex-relative\"><img width=\"800\" height=\"800\" src=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/DSC05682.jpg\" class=\"skip-lazy\" alt=\"Rockwell hardness test\" data-no-lazy=\"1\" srcset=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/DSC05682.jpg 800w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/DSC05682-300x300.jpg 300w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/DSC05682-150x150.jpg 150w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/DSC05682-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><div class=\"wpex-slider-caption sp-black sp-layer\"data-position=\"bottomCenter\" data-show-delay=\"500\" data-show-transition=\"up\" data-hide-transition=\"down\" data-width=\"100%\"><p>Rockwell hardness test<\/p>\n<\/div><\/div><\/div><\/div><div class=\"wpex-slider-thumbnails sp-thumbnails\"><img width=\"800\" height=\"800\" src=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell.jpg\" class=\"wpex-slider-thumbnail sp-thumbnail skip-lazy\" alt=\"Rockwell hardness test\" data-no-lazy=\"1\" srcset=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell.jpg 800w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell-300x300.jpg 300w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell-150x150.jpg 150w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Rockwell-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><img width=\"800\" height=\"800\" src=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Brinell.jpg\" class=\"wpex-slider-thumbnail sp-thumbnail skip-lazy\" alt=\"Brinell hardness test\" data-no-lazy=\"1\" srcset=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Brinell.jpg 800w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Brinell-300x300.jpg 300w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Brinell-150x150.jpg 150w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Prova-Brinell-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><img width=\"800\" height=\"800\" src=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/DSC05682.jpg\" class=\"wpex-slider-thumbnail sp-thumbnail skip-lazy\" alt=\"Rockwell hardness test\" data-no-lazy=\"1\" srcset=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/DSC05682.jpg 800w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/DSC05682-300x300.jpg 300w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/DSC05682-150x150.jpg 150w, https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/DSC05682-768x768.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/div><\/div>[\/vc_column][vc_column width=&#8221;1\/6&#8243;][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83d\udd0d What steel hardness means&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]<strong>Steel hardness<\/strong> is the resistance that the material offers to the penetration of a harder body, called an indenter.<\/p>\n<p>During the test, a controlled force is applied to the surface of the material through a specific indenter.<\/p>\n<p>\ud83d\udc49 Depending on the method used, hardness is determined by measuring:<\/p>\n<ul>\n<li>the size of the indentation left on the material<\/li>\n<li>or the depth of penetration<\/li>\n<\/ul>\n<p>The result obtained makes it possible to assess how resistant the material is to surface deformation.<\/p>\n<p>In other words, hardness is a direct indicator of the steel\u2019s ability to withstand localized stresses without deforming easily.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83e\uddea Why hardness tests are important&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_column_text css=&#8221;&#8221;]<strong>Hardness tests on materials<\/strong> are essential because they make it possible to obtain quick and reliable information on the mechanical characteristics of steel.<\/p>\n<p>\ud83d\udc49 They are widely used because:<\/p>\n<ul>\n<li>they require relatively short execution times<\/li>\n<li>they do not significantly damage the sample<\/li>\n<li>they allow materials, semi-finished products or finished components to be checked<\/li>\n<li>they provide useful indications on the material\u2019s strength<\/li>\n<li>they make it possible to verify the effect of heat treatments<\/li>\n<\/ul>\n<p>In may cases, hardness is also linked to the mechanical strength of the material.<\/p>\n<p>\u2714 Correct hardness control therefore helps to understand whether the steel is suitable for the intended machining process or application.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83d\udd27 How a hardness test is performed&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]The principle behind hardness tests is simple: the material is subjected to a controlled force through an indenter.<\/p>\n<p>The indenter leaves an impression on the surface of the steel.<\/p>\n<p>\ud83d\udc49 Subsequently, the hardness value is calculated based on:<\/p>\n<ul>\n<li>type of indenter used<\/li>\n<li>applied load<\/li>\n<li>size or depth of the indentation<\/li>\n<li>chosen measurement scale<\/li>\n<\/ul>\n<p>There are different test methods, each suited to specific inspection requirements.<\/p>\n<p>Among the most widely used are:<\/p>\n<ul>\n<li>Brinell<\/li>\n<li>Vickers<\/li>\n<li>Rockwell<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\u2699\ufe0f Brinell hardness&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]The Brinell hardness test is one of the most common for relatively soft materials or materials with structures that are not too fine.<\/p>\n<p>It is often used for medium-low alloy steels, light alloys and materials where it is useful to obtain a wide and representative indentation.<\/p>\n<p>\ud83d\udc49 The method involves:<\/p>\n<p>applying a steel or carbide ball to the surface of the material<br \/>\nusing a predefined load<br \/>\nholding the load for a defined time<br \/>\nmeasuring the average diameter of the indentation left on the part<\/p>\n<p>An example of Brinell indication may be:<\/p>\n<p><strong>320 HBW 10\/3000<\/strong><\/p>\n<p>Where:<\/p>\n<p><strong>320<\/strong> is the hardness value<br \/>\n<strong>HB<\/strong> indicates Brinell hardness<br \/>\n<strong>W<\/strong> indicates the carbide indenter<br \/>\n<strong>10<\/strong> is the diameter of the indenter in millimeters<br \/>\n<strong>3000<\/strong> is the applied load in kg<\/p>\n<p>\ud83d\udc49 The Brinell test is particularly useful when a larger surface area of the material needs to be assessed.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83d\udd2c Vickers hardness&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]The <strong>Vickers<\/strong> hardness test uses a square-based pyramidal indenter.<\/p>\n<p>It is a very versatile method, used both for traditional hardness tests and for more precise measurements on small areas.<\/p>\n<p>\ud83d\udc49 It is mainly used for:<\/p>\n<ul>\n<li>small-sized parts<\/li>\n<li>finished components<\/li>\n<li>materials subjected to surface treatments<\/li>\n<li>laboratory measurements<\/li>\n<li>microhardness checks<\/li>\n<li>inspections on specific areas of the material<\/li>\n<\/ul>\n<p>The Vickers test requires accurate surface preparation and precise reading of the indentation, often through optical systems or a microscope.<\/p>\n<p>\u2714 It is particularly useful when the behavior of a limited area of the material needs to be analyzed precisely.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83e\uddf1 Rockwell hardness&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]The <strong>Rockwell<\/strong> hardness test differs from the Brinell and Vickers methods because it does not measure the size of the indentation, but the depth of penetration of the indenter.<\/p>\n<p>\ud83d\udc49 This makes the Rockwell method:<\/p>\n<ul>\n<li>fast<\/li>\n<li>practical<\/li>\n<li>suitable for repetitive checks<\/li>\n<li>easy to read directly from the instrument<\/li>\n<\/ul>\n<p>The hardness value can be obtained directly, without the need for optical measurements of the indentation.<\/p>\n<p>\u2714 For this reason, the Rockwell method is widely used in industrial inspections where speed and repeatability are required.<\/p>\n<p>However, the accuracy of the test can be influenced by several factors, including surface quality, part thickness and correct sample preparation.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83c\udfed Hardness tests in the BA laboratory&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]In the <strong>Bonomi Acciai<\/strong> laboratory, hardness tests are a fundamental tool for connecting technical data to the real behavior of the material.<\/p>\n<p>In addition to the values reported in the certificate, the laboratory performs internal checks on the material using dedicated hardness measurement instruments.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83e\uddf0 Which hardness tests are performed&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]<strong>Brinell<\/strong> and <strong>Rockwell<\/strong> tests are performed in the BA laboratory.<\/p>\n<p>Brinell tests can be performed with different loads:<\/p>\n<ul>\n<li><strong>HBW 10\/3000<\/strong> \u2192 3000 kgf<\/li>\n<li><strong>HBW 10\/1000<\/strong> \u2192 1000 kgf<\/li>\n<li><strong>HBW 10\/500<\/strong> \u2192 500 kgf<\/li>\n<li><strong>HBW 10\/250<\/strong> \u2192 250 kgf<\/li>\n<li><strong>HBW 10\/100<\/strong> \u2192 100 kgf<\/li>\n<\/ul>\n<p>The Rockwell tests performed include:<\/p>\n<ul>\n<li><strong>HRC<\/strong><\/li>\n<li><strong>HRA<\/strong><\/li>\n<li><strong>HRN 15<\/strong><\/li>\n<li><strong>HRN 30<\/strong><\/li>\n<li><strong>HRN 45<\/strong><\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83d\udd27 Instruments used&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]Hardness tests at BA are performed both using a <strong>bench hardness tester<\/strong> and a <strong>versatile portable rebound hardness tester<\/strong>, capable of carrying out checks directly on large components and manufactured parts.<\/p>\n<p>The use of the bench hardness tester makes it possible to perform precise tests compliant with the main reference standards, using different measurement scales according to the material and the characteristics of the part.<\/p>\n<p>The portable rebound hardness tester, on the other hand, represents a practical and flexible solution for carrying out checks directly at the customer\u2019s site or on components that, due to their size or geometry, cannot be checked using traditional laboratory instruments.<\/p>\n<p>This possibility allows fast and non-destructive checks to be carried out directly in the field, reducing downtime, handling operations and the need to transport materials, while guaranteeing timely and effective technical support.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83d\udd0e When hardness is measured&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]Hardness tests are performed at different stages of the process, depending on quality control requirements and the checks requested on the material.<\/p>\n<p>At BA, hardness is checked on a <strong>sample basis on incoming materials<\/strong>, in order to verify conformity with the required specifications and the certificates supplied.<\/p>\n<p>Tests are also carried out on parts subjected to <strong>heat treatment directly managed by BA<\/strong>, in order to verify the correct achievement of the expected mechanical characteristics.<\/p>\n<p>In the event of non-conformities or issues detected during the customer\u2019s use of the material, hardness control also represents a useful tool for evaluating any alterations in the material properties, for example due to overheating or abnormal operating conditions.<\/p>\n<p>Thanks to the use of both laboratory and portable instruments, BA is able to carry out fast and effective checks also directly at the customer\u2019s site, offering timely technical support in verification and analysis activities.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83e\uddf1 On which materials the test is performed&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]Thanks to the availability of both a bench hardness tester and a portable rebound hardness tester, BA is able to perform hardness tests in extremely versatile conditions and on a wide range of materials and components.<\/p>\n<p>Checks can be carried out on:<\/p>\n<ul>\n<li>barsplates<\/li>\n<li>machined parts<\/li>\n<li>cut samples<\/li>\n<li>components subjected to heat treatment<\/li>\n<li>large manufactured parts<\/li>\n<li>already installed parts<\/li>\n<\/ul>\n<p>This dual measurement possibility allows the inspection to be adapted to different application requirements, guaranteeing fast and effective checks both in the laboratory and directly at the customer\u2019s site.<\/p>\n<p>The flexibility of the instruments used therefore makes it possible to check hardness on all the main types of metallic materials handled by BA, even in the presence of complex geometries or components that are difficult to move.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83e\uddfc Surface preparation&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]Surface preparation plays a very important role in obtaining reliable results in hardness tests, since the surface finish significantly affects the accuracy of the reading.<\/p>\n<p>When the part already has a mechanically machined surface, generally no further preparation operations are required.<\/p>\n<p>In other cases, however, it is preferable to properly prepare the area intended for inspection through operations such as:<\/p>\n<ul>\n<li>cleaning<\/li>\n<li>flattening<\/li>\n<li>light surface grinding<\/li>\n<\/ul>\n<p>For Brinell tests performed with the bench hardness tester, it is also possible to work on relatively rough surfaces, as this method is less sensitive to surface finish.<\/p>\n<p>For other types of hardness tests, and in particular for measurements carried out with a portable rebound hardness tester, surface preparation becomes more important and may require more accurate preparation operations in order to guarantee reliable and repeatable results.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83d\udcca What the results are compared with&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]The results of hardness tests are compared with the technical references provided for the material or component being inspected.<\/p>\n<p>In the case of checks on incoming materials, the values detected are verified against the certificates issued by the steel mill, in order to confirm the conformity of the declared mechanical characteristics.<\/p>\n<p>For components subjected to heat treatment, on the other hand, the results are compared with the certificates supplied by the heat-treatment provider, verifying the correct achievement of the hardness values required by the treatment performed.<\/p>\n<p>Depending on the applications and customer requirements, the checks may also be compared with:<\/p>\n<ul>\n<li>technical reference standards<\/li>\n<li>material technical data sheets<\/li>\n<li>specific requirements requested during supply<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\u2705 Added value for the customer&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]The hardness test is a fundamental tool for guaranteeing the quality, conformity and reliability of the materials and components supplied to customers.<\/p>\n<p>Through this check, it is possible to quickly verify that the material has the mechanical characteristics required by the technical specifications, reference standards or heat treatments performed.<\/p>\n<p>Hardness measurement also makes it possible to identify any anomalies or alterations in the material, supporting quality control activities both during acceptance and during machining or in the event of non-conformities.<\/p>\n<p>Thanks to the availability of both laboratory and portable instruments, BA can carry out fast checks directly on components, including at the customer\u2019s site, reducing intervention times and providing immediate technical support.<\/p>\n<p>For the customer, this translates into greater confidence in the reliability of the material used, better traceability of checks and the certainty of being able to rely on a qualified technical partner focused on the quality of the product supplied.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83d\udd04 Connection to the steel quality series&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]In the path dedicated to steel quality, hardness represents one of the most concrete and immediate parameters.<\/p>\n<p>After analyzing the chemical composition, hardness makes it possible to assess how the material responds to mechanical stresses.<\/p>\n<p>\ud83d\udc49 In the next articles, we will explore other fundamental aspects of the certificate and quality control, such as:<\/p>\n<ul>\n<li>impact strength<\/li>\n<li>grain size<\/li>\n<li>steel cleanliness<\/li>\n<li>microstructure<\/li>\n<li>non-destructive testing<\/li>\n<\/ul>\n<p>Each parameter contributes to building a complete view of steel quality.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column el_class=&#8221;ba-box&#8221;][vc_custom_heading text=&#8221;\ud83c\udfaf Conclusion&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]Steel hardness is not just a numerical value.<\/p>\n<p>It is a fundamental indicator of the material\u2019s resistance and its behavior during machining, treatment and final use.<\/p>\n<p>\ud83d\udc49 Hardness tests make it possible to verify whether the steel has the required characteristics and whether it is suitable for the intended application.<\/p>\n<p>Understanding this parameter means reading an essential aspect of material quality: its ability to resist.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row&#8221; css=&#8221;.vc_custom_1775557578713{background-color: #ebebeb !important;}&#8221; visibility=&#8221;hidden-phone&#8221;][vc_column]<div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:35px;\"><\/div>[vc_column_text css=&#8221;&#8221;]\n<h3 style=\"text-align: center;\"><strong>Would you like to learn more about how steel inspections and checks are managed?<\/strong><\/h3>\n<h3 style=\"text-align: center;\"><a href=\"https:\/\/www.bonomiacciai.it\/en\/contacts\/\">Contact us<\/a> to speak with our technical department.<br \/>\nOr fill in the form below to receive more information.<\/h3>\n[\/vc_column_text]<div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:35px;\"><\/div>[vc_row_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_custom_heading text=&#8221;Contact our technical department:&#8221; font_container=&#8221;tag:h2|font_size:26px|text_align:center|color:%23172028&#8243; use_theme_fonts=&#8221;yes&#8221;][\/vc_column_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_custom_heading text=&#8221;Fill in the form:&#8221; font_container=&#8221;tag:h2|font_size:26px|text_align:center|color:%23172028&#8243; use_theme_fonts=&#8221;yes&#8221;]<div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:24px;\"><\/div>[\/vc_column_inner][\/vc_row_inner][vc_row_inner gap=&#8221;35&#8243; css=&#8221;.vc_custom_1775557630564{margin-right: -10px !important;margin-left: -10px !important;border-right-width: -10px !important;border-left-width: -10px !important;padding-right: -10px !important;padding-left: -10px !important;}&#8221;][vc_column_inner width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;48019&#8243; img_size=&#8221;1080&#215;1080&#8243; alignment=&#8221;center&#8221; css=&#8221;&#8221;]<div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:35px;\"><\/div>[vc_custom_heading text=&#8221;Gianluigi Vianelli&#8221; font_container=&#8221;tag:h2|font_size:26px|text_align:center|color:%23282828&#8243; google_fonts=&#8221;font_family:Arimo%3Aregular%2Citalic%2C700%2C700italic|font_style:700%20bold%20regular%3A700%3Anormal&#8221; css_animation=&#8221;none&#8221; css=&#8221;&#8221;][vc_custom_heading text=&#8221;Research &amp; Development Lab Manager&#8221; font_container=&#8221;tag:h2|font_size:19px|text_align:center|color:%23282828&#8243; google_fonts=&#8221;font_family:Arimo%3Aregular%2Citalic%2C700%2C700italic|font_style:400%20regular%3A400%3Anormal&#8221; css_animation=&#8221;none&#8221; css=&#8221;&#8221;]<div class=\"vcex-module vcex-divider vcex-divider-solid vcex-divider-center wpex-mx-auto wpex-max-w-100 wpex-block wpex-h-0 wpex-border-b wpex-border-solid wpex-border-main\" style=\"width:250px;margin-block:15px;border-color:#282828;\"><\/div><style>.vcex-social-links.vcex_6aa3fe4fa55d1{font-size:20px;}.vcex-social-links.vcex_6aa3fe4fa55d1 .vcex-social-links__item{color:#282828;}.vcex-social-links.vcex_6aa3fe4fa55d1 .vcex-social-links__item:hover{color:#4a6670;}<\/style><div class=\"vcex-social-links vcex-module wpex-flex wpex-flex-wrap wpex-gap-5 wpex-social-btns vcex-social-btns wpex-items-center wpex-justify-center wpex-last-mr-0 vcex_6aa3fe4fa55d1\"><a href=\"mailto:g&#046;v&#105;a&#110;&#101;ll&#105;&#064;&#098;o&#110;&#111;miacci&#097;i.i&#116;\" class=\"vcex-social-links__item wpex-social-btn wpex-social-btn-no-style wpex-has-custom-color wpex-email\"><span class=\"vcex-social-links__icon wpex-icon\" aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\"><path d=\"M48 64C21.5 64 0 85.5 0 112c0 15.1 7.1 29.3 19.2 38.4L236.8 313.6c11.4 8.5 27 8.5 38.4 0L492.8 150.4c12.1-9.1 19.2-23.3 19.2-38.4c0-26.5-21.5-48-48-48H48zM0 176V384c0 35.3 28.7 64 64 64H448c35.3 0 64-28.7 64-64V176L294.4 339.2c-22.8 17.1-54 17.1-76.8 0L0 176z\"\/><\/svg><\/span><span class=\"screen-reader-text\">Email<\/span><\/a><a href=\"https:\/\/www.linkedin.com\/in\/gianluigi-vianelli-17539598\/\" class=\"vcex-social-links__item wpex-social-btn wpex-social-btn-no-style wpex-has-custom-color wpex-linkedin\"><span class=\"vcex-social-links__icon wpex-icon\" aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 448 512\"><path d=\"M100.3 448H7.4V148.9h92.9zM53.8 108.1C24.1 108.1 0 83.5 0 53.8a53.8 53.8 0 0 1 107.6 0c0 29.7-24.1 54.3-53.8 54.3zM447.9 448h-92.7V302.4c0-34.7-.7-79.2-48.3-79.2-48.3 0-55.7 37.7-55.7 76.7V448h-92.8V148.9h89.1v40.8h1.3c12.4-23.5 42.7-48.3 87.9-48.3 94 0 111.3 61.9 111.3 142.3V448z\"\/><\/svg><\/span><span class=\"screen-reader-text\">LinkedIn<\/span><\/a><\/div>[\/vc_column_inner][vc_column_inner width=&#8221;1\/2&#8243;]\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f44579-o1\" lang=\"it-IT\" dir=\"ltr\" data-wpcf7-id=\"44579\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/en\/wp-json\/wp\/v2\/posts\/49469#wpcf7-f44579-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Modulo di contatto\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"44579\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.7\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"it_IT\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f44579-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<style>\n.contact-form-wrapper {\n background: white; \/* Sfondo del modulo *\/\n padding: 20px;\n border-radius: 10px;\n box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);\n max-width: 600px;\n margin: 0 auto;\n box-sizing: border-box;\n color: black; \/* Colore del testo *\/\n}\n\n.contact-form-wrapper .form-row {\n display: flex;\n flex-wrap: wrap;\n margin-bottom: 5px; \/* Spazio ridotto tra le righe *\/\n}\n\n.contact-form-wrapper .form-column {\n flex: 1;\n padding: 0 10px;\n}\n\n.contact-form-wrapper .form-column-full {\n flex: 0 0 100%;\n padding: 0 10px;\n}\n\n.contact-form-wrapper .form-column label,\n.contact-form-wrapper .form-column-full label {\n display: block;\n margin-bottom: 5px; \/* Spazio ridotto tra etichetta e campo di input *\/\n}\n\n.contact-form-wrapper input[type=\"text\"],\n.contact-form-wrapper input[type=\"email\"],\n.contact-form-wrapper input[type=\"tel\"],\n.contact-form-wrapper textarea {\n width: 100%;\n padding: 10px;\n border-radius: 5px;\n border: none;\n background: darkgray; \/* Sfondo dei campi *\/\n color: white; \/* Colore del testo nei campi *\/\n box-sizing: border-box;\n}\n\n.contact-form-wrapper textarea {\n height: 100px;\n}\n\n.contact-form-wrapper p {\n margin: 5px 0; \/* Spazio ridotto tra i paragrafi *\/\n}\n\n.contact-form-wrapper .submit-row {\n display: flex;\n justify-content: center;\n padding: 0 10px;\n}\n\n.contact-form-wrapper input[type=\"submit\"] {\n width: 100%;\n background: black;\n color: white;\n padding: 10px 20px;\n font-size: 16px;\n border: none;\n border-radius: 10px;\n cursor: pointer;\n box-sizing: border-box;\n}\n\n.contact-form-wrapper input[type=\"submit\"]:hover {\n background: #333;\n}\n<\/style>\n<div class=\"contact-form-wrapper\">\n\t<div class=\"form-row\">\n\t\t<div class=\"form-column\">\n\t\t\t<p><label><br \/>\n<strong>Nome<\/strong><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Nome\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span><br \/>\n<\/label>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div class=\"form-column\">\n\t\t\t<p><label><br \/>\n<strong>Cognome<\/strong><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-surname\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Cognome\" value=\"\" type=\"text\" name=\"your-surname\" \/><\/span><br \/>\n<\/label>\n\t\t\t<\/p>\n\t\t<\/div>\n\t<\/div>\n\t<div class=\"form-row\">\n\t\t<div class=\"form-column\">\n\t\t\t<p><label><br \/>\n<strong>Azienda<\/strong><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-azienda\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Azienda\" value=\"\" type=\"text\" name=\"your-azienda\" \/><\/span><br \/>\n<\/label>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div class=\"form-column\">\n\t\t\t<p><label><br \/>\n<strong>Sito Web<\/strong><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-website\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Sito Web\" value=\"\" type=\"text\" name=\"your-website\" \/><\/span><br \/>\n<\/label>\n\t\t\t<\/p>\n\t\t<\/div>\n\t<\/div>\n\t<div class=\"form-row\">\n\t\t<div class=\"form-column\">\n\t\t\t<p><label><br \/>\n<strong>Telefono<\/strong><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-tel\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Telefono\" value=\"\" type=\"text\" name=\"your-tel\" \/><\/span><br \/>\n<\/label>\n\t\t\t<\/p>\n\t\t<\/div>\n\t\t<div class=\"form-column\">\n\t\t\t<p><label><br \/>\n<strong>Email<\/strong><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Email\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span><br \/>\n<\/label>\n\t\t\t<\/p>\n\t\t<\/div>\n\t<\/div>\n\t<div class=\"form-row\">\n\t\t<div class=\"form-column-full\">\n\t\t\t<p><label><br \/>\n<strong>Messaggio<\/strong><br \/>\n<span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"10\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Messaggio\" name=\"your-message\"><\/textarea><\/span><br \/>\n<\/label>\n\t\t\t<\/p>\n\t\t<\/div>\n\t<\/div>\n\t<div class=\"form-row\">\n\t\t<p><label><br \/>\n<\/label>\n\t\t<\/p>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"checkbox-713\"><span class=\"wpcf7-form-control wpcf7-checkbox wpcf7-validates-as-required\"><span class=\"wpcf7-list-item first last\"><input type=\"checkbox\" name=\"checkbox-713[]\" value=\"Accetto la Privacy Policy\" \/><span class=\"wpcf7-list-item-label\">Accetto la Privacy Policy<\/span><\/span><\/span><\/span><a href=\"https:\/\/www.iubenda.com\/privacy-policy\/38826225\" rel=\"noopener\" target=\"_blank\">Leggi qui<\/a>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"form-row submit-row\">\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"INVIA!\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n[\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row_content&#8221; css=&#8221;.vc_custom_1717678552691{background-color: #ebebeb !important;}&#8221; visibility=&#8221;visible-phone&#8221;][\/vc_row][vc_column][\/vc_column]<div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:35px;\"><\/div>[vc_column_text css=&#8221;&#8221;]\n<p>I am text block. Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.<\/p>\n[\/vc_column_text]\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row el_class=&#8221;ba-intro-lead&#8221;][vc_column][vc_column_text css=&#8221;&#8221;]After analyzing the chemical identity of steel, we move on to another fundamental parameter found in the certificate: steel hardness. Hardness indicates the ability of a material to resist penetration, surface deformation and, more generally, external mechanical stresses. In the quality control of special steels, this value is particularly important because it provides&hellip;<\/p>\n","protected":false},"author":10,"featured_media":49541,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2175,2176,1720],"tags":[1759,3052,3035,3280,3321,3279,3315,3314,3298,2997,3262,3299,2978,2100,3300,3301,3302,3303,3304,3305,3306,3313,3264,3265,3322,3307,3308,3309,3310,3311,3317,3316,2162,2998,3282,2155,3323,3320,3312,3019,3324,2989,3016,3319,3318],"post_series":[],"class_list":["post-49469","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-en","category-home-en","category-technical-contents","tag-acciai-speciali-en","tag-anatomia-di-un-acciaio","tag-anatomy-of-steel","tag-ba-laboratory","tag-bench-hardness-tester","tag-bonomi-acciai-laboratory","tag-brinell-hardness","tag-brinell-test-steel","tag-caratteristiche-meccaniche-acciaio","tag-certificato-acciaio","tag-conformita-acciaio","tag-controllo-durezza-acciaio","tag-controllo-qualita-acciaio","tag-durezza-acciaio-en","tag-durezza-brinell","tag-durezza-dellacciaio","tag-durezza-rockwell","tag-durezza-vickers","tag-durometro-acciaio","tag-durometro-da-banco","tag-durometro-portatile-a-rimbalzo","tag-hardness-tests-on-materials","tag-laboratorio-ba","tag-laboratorio-bonomi-acciai","tag-portable-rebound-hardness-tester","tag-prova-brinell-acciaio","tag-prova-rockwell-acciaio","tag-prova-vickers-acciaio","tag-prove-di-durezza-acciaio","tag-prove-di-durezza-sui-materiali","tag-rockwell-hardness","tag-rockwell-test-steel","tag-special-steels","tag-steel-certificate","tag-steel-conformity","tag-steel-hardness","tag-steel-hardness-control","tag-steel-hardness-tester","tag-steel-hardness-tests","tag-steel-heat-treatments","tag-steel-mechanical-characteristics","tag-steel-quality-control","tag-trattamenti-termici-acciaio","tag-vickers-hardness","tag-vickers-test-steel","entry","has-media"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Steel hardness: Brinell, Rockwell and Vickers tests<\/title>\n<meta name=\"description\" content=\"Discover what steel hardness is, how it is measured with Brinell, Rockwell and Vickers tests, and why it is essential.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Steel hardness: material resistance\" \/>\n<meta property=\"og:description\" content=\"Discover what steel hardness is, how it is measured with Brinell, Rockwell and Vickers tests, and why it is essential.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/\" \/>\n<meta property=\"og:site_name\" content=\"Bonomi Acciai\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-07T08:00:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Durezza_Blog.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1080\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Elisa\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Elisa\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"12 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/\"},\"author\":{\"name\":\"Elisa\",\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/#\\\/schema\\\/person\\\/ca8c3de3bf19ba3f120097a99d663dad\"},\"headline\":\"Steel hardness: material resistance\",\"datePublished\":\"2026-07-07T08:00:38+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/\"},\"wordCount\":2863,\"publisher\":{\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.bonomiacciai.it\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/Durezza_Blog.jpg\",\"keywords\":[\"Acciai Speciali\",\"anatomia di un acciaio\",\"anatomy of steel\",\"BA laboratory\",\"bench hardness tester\",\"Bonomi Acciai laboratory\",\"Brinell hardness\",\"Brinell test steel\",\"caratteristiche meccaniche acciaio\",\"certificato acciaio\",\"conformit\u00e0 acciaio\",\"controllo durezza acciaio\",\"controllo qualit\u00e0 acciaio\",\"durezza acciaio\",\"durezza Brinell\",\"durezza dell\u2019acciaio\",\"durezza Rockwell\",\"durezza Vickers\",\"durometro acciaio\",\"durometro da banco\",\"durometro portatile a rimbalzo\",\"hardness tests on materials\",\"laboratorio BA\",\"laboratorio Bonomi Acciai\",\"portable rebound hardness tester\",\"prova Brinell acciaio\",\"prova Rockwell acciaio\",\"prova Vickers acciaio\",\"prove di durezza acciaio\",\"prove di durezza sui materiali\",\"Rockwell hardness\",\"Rockwell test steel\",\"special steels\",\"steel certificate\",\"steel conformity\",\"steel hardness\",\"steel hardness control\",\"steel hardness tester\",\"steel hardness tests\",\"steel heat treatments\",\"steel mechanical characteristics\",\"steel quality control\",\"trattamenti termici acciaio\",\"Vickers hardness\",\"Vickers test steel\"],\"articleSection\":[\"Blog\",\"Home\",\"Technical contents\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/\",\"url\":\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/\",\"name\":\"Steel hardness: Brinell, Rockwell and Vickers tests\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.bonomiacciai.it\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/Durezza_Blog.jpg\",\"datePublished\":\"2026-07-07T08:00:38+00:00\",\"description\":\"Discover what steel hardness is, how it is measured with Brinell, Rockwell and Vickers tests, and why it is essential.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.bonomiacciai.it\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/Durezza_Blog.jpg\",\"contentUrl\":\"https:\\\/\\\/www.bonomiacciai.it\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/Durezza_Blog.jpg\",\"width\":1080,\"height\":1080,\"caption\":\"Bonomi Acciai informational graphic dedicated to steel hardness\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/durezza-acciaio-resistenza-materiale\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.bonomiacciai.it\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Steel hardness: material resistance\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/#website\",\"url\":\"https:\\\/\\\/www.bonomiacciai.it\\\/\",\"name\":\"Bonomi Acciai\",\"description\":\"La tua visione, il nostro acciaio.\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.bonomiacciai.it\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/#organization\",\"name\":\"Bonomi Acciai\",\"url\":\"https:\\\/\\\/www.bonomiacciai.it\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.bonomiacciai.it\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/Bonomi-Acciai_Logo.png\",\"contentUrl\":\"https:\\\/\\\/www.bonomiacciai.it\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/Bonomi-Acciai_Logo.png\",\"width\":300,\"height\":300,\"caption\":\"Bonomi Acciai\"},\"image\":{\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.bonomiacciai.it\\\/#\\\/schema\\\/person\\\/ca8c3de3bf19ba3f120097a99d663dad\",\"name\":\"Elisa\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/3b4d8a5cc302c64c5954a972b7df50754c2a0ab265bf4db40548d53b61dc4889?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/3b4d8a5cc302c64c5954a972b7df50754c2a0ab265bf4db40548d53b61dc4889?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/3b4d8a5cc302c64c5954a972b7df50754c2a0ab265bf4db40548d53b61dc4889?s=96&d=mm&r=g\",\"caption\":\"Elisa\"},\"url\":\"https:\\\/\\\/www.bonomiacciai.it\\\/en\\\/author\\\/elisa\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Steel hardness: Brinell, Rockwell and Vickers tests","description":"Discover what steel hardness is, how it is measured with Brinell, Rockwell and Vickers tests, and why it is essential.","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:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/","og_locale":"en_US","og_type":"article","og_title":"Steel hardness: material resistance","og_description":"Discover what steel hardness is, how it is measured with Brinell, Rockwell and Vickers tests, and why it is essential.","og_url":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/","og_site_name":"Bonomi Acciai","article_published_time":"2026-07-07T08:00:38+00:00","og_image":[{"width":1080,"height":1080,"url":"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Durezza_Blog.jpg","type":"image\/jpeg"}],"author":"Elisa","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Elisa","Est. reading time":"12 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/#article","isPartOf":{"@id":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/"},"author":{"name":"Elisa","@id":"https:\/\/www.bonomiacciai.it\/#\/schema\/person\/ca8c3de3bf19ba3f120097a99d663dad"},"headline":"Steel hardness: material resistance","datePublished":"2026-07-07T08:00:38+00:00","mainEntityOfPage":{"@id":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/"},"wordCount":2863,"publisher":{"@id":"https:\/\/www.bonomiacciai.it\/#organization"},"image":{"@id":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/#primaryimage"},"thumbnailUrl":"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Durezza_Blog.jpg","keywords":["Acciai Speciali","anatomia di un acciaio","anatomy of steel","BA laboratory","bench hardness tester","Bonomi Acciai laboratory","Brinell hardness","Brinell test steel","caratteristiche meccaniche acciaio","certificato acciaio","conformit\u00e0 acciaio","controllo durezza acciaio","controllo qualit\u00e0 acciaio","durezza acciaio","durezza Brinell","durezza dell\u2019acciaio","durezza Rockwell","durezza Vickers","durometro acciaio","durometro da banco","durometro portatile a rimbalzo","hardness tests on materials","laboratorio BA","laboratorio Bonomi Acciai","portable rebound hardness tester","prova Brinell acciaio","prova Rockwell acciaio","prova Vickers acciaio","prove di durezza acciaio","prove di durezza sui materiali","Rockwell hardness","Rockwell test steel","special steels","steel certificate","steel conformity","steel hardness","steel hardness control","steel hardness tester","steel hardness tests","steel heat treatments","steel mechanical characteristics","steel quality control","trattamenti termici acciaio","Vickers hardness","Vickers test steel"],"articleSection":["Blog","Home","Technical contents"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/","url":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/","name":"Steel hardness: Brinell, Rockwell and Vickers tests","isPartOf":{"@id":"https:\/\/www.bonomiacciai.it\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/#primaryimage"},"image":{"@id":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/#primaryimage"},"thumbnailUrl":"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Durezza_Blog.jpg","datePublished":"2026-07-07T08:00:38+00:00","description":"Discover what steel hardness is, how it is measured with Brinell, Rockwell and Vickers tests, and why it is essential.","breadcrumb":{"@id":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/#primaryimage","url":"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Durezza_Blog.jpg","contentUrl":"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2026\/07\/Durezza_Blog.jpg","width":1080,"height":1080,"caption":"Bonomi Acciai informational graphic dedicated to steel hardness"},{"@type":"BreadcrumbList","@id":"https:\/\/www.bonomiacciai.it\/durezza-acciaio-resistenza-materiale\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.bonomiacciai.it\/en\/"},{"@type":"ListItem","position":2,"name":"Steel hardness: material resistance"}]},{"@type":"WebSite","@id":"https:\/\/www.bonomiacciai.it\/#website","url":"https:\/\/www.bonomiacciai.it\/","name":"Bonomi Acciai","description":"La tua visione, il nostro acciaio.","publisher":{"@id":"https:\/\/www.bonomiacciai.it\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.bonomiacciai.it\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.bonomiacciai.it\/#organization","name":"Bonomi Acciai","url":"https:\/\/www.bonomiacciai.it\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.bonomiacciai.it\/#\/schema\/logo\/image\/","url":"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2023\/08\/Bonomi-Acciai_Logo.png","contentUrl":"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2023\/08\/Bonomi-Acciai_Logo.png","width":300,"height":300,"caption":"Bonomi Acciai"},"image":{"@id":"https:\/\/www.bonomiacciai.it\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.bonomiacciai.it\/#\/schema\/person\/ca8c3de3bf19ba3f120097a99d663dad","name":"Elisa","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/3b4d8a5cc302c64c5954a972b7df50754c2a0ab265bf4db40548d53b61dc4889?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/3b4d8a5cc302c64c5954a972b7df50754c2a0ab265bf4db40548d53b61dc4889?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/3b4d8a5cc302c64c5954a972b7df50754c2a0ab265bf4db40548d53b61dc4889?s=96&d=mm&r=g","caption":"Elisa"},"url":"https:\/\/www.bonomiacciai.it\/en\/author\/elisa\/"}]}},"_links":{"self":[{"href":"https:\/\/www.bonomiacciai.it\/en\/wp-json\/wp\/v2\/posts\/49469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bonomiacciai.it\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bonomiacciai.it\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bonomiacciai.it\/en\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bonomiacciai.it\/en\/wp-json\/wp\/v2\/comments?post=49469"}],"version-history":[{"count":0,"href":"https:\/\/www.bonomiacciai.it\/en\/wp-json\/wp\/v2\/posts\/49469\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bonomiacciai.it\/en\/wp-json\/wp\/v2\/media\/49541"}],"wp:attachment":[{"href":"https:\/\/www.bonomiacciai.it\/en\/wp-json\/wp\/v2\/media?parent=49469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bonomiacciai.it\/en\/wp-json\/wp\/v2\/categories?post=49469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bonomiacciai.it\/en\/wp-json\/wp\/v2\/tags?post=49469"},{"taxonomy":"post_series","embeddable":true,"href":"https:\/\/www.bonomiacciai.it\/en\/wp-json\/wp\/v2\/post_series?post=49469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}