{"id":47490,"date":"2025-03-11T10:00:21","date_gmt":"2025-03-11T09:00:21","guid":{"rendered":"https:\/\/www.bonomiacciai.it\/il-cromo\/"},"modified":"2025-05-22T16:51:41","modified_gmt":"2025-05-22T14:51:41","slug":"alloy-elements-chromium","status":"publish","type":"post","link":"https:\/\/www.bonomiacciai.it\/en\/alloy-elements-chromium\/","title":{"rendered":"Alloy Elements: Chromium"},"content":{"rendered":"
[vc_row][vc_column][vc_column_text css=””]Chromium (Cr)<\/strong> is a silvery-gray metal known for its presence in all special tool steels and stainless steels. This alloying element plays a crucial role in enhancing wear resistance<\/strong>, corrosion resistance<\/strong>, and tempering stability<\/strong>. In martensitic steels<\/strong>, it also improves hardenability<\/strong>, allowing air quenching on parts with limited thickness.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/6″][\/vc_column][vc_column width=”2\/3″][vc_single_image image=”45246″ add_caption=”yes” onclick=”img_link_large” css=””][\/vc_column][vc_column width=”1\/6″][\/vc_column][\/vc_row][vc_row][vc_column]
<\/div>[\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=”Chromium Alloying Element Sheet” use_theme_fonts=”yes” css=””][vc_empty_space height=”16px”][vc_single_image image=”45250″ add_caption=”yes” onclick=”img_link_large” css=””][vc_empty_space height=”16px”][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=”The Role of Chromium in Steels” use_theme_fonts=”yes” css=””][vc_empty_space height=”16px”][vc_column_text css=””]Chromium is one of the most important elements in special steels thanks to its numerous functions:[\/vc_column_text][vc_empty_space height=”8px”][vc_column_text css=”” line_height=”relaxed”]\n
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  • Corrosion resistance<\/strong>: With minimum chromium content of 13% in solid solution, steel acquires excellent corrosion resistance. This is the basis of stainless steels.<\/li>\n
  • Carbide formation<\/strong>: When combined with carbon, chromium forms carbides that enhance wear resistance and edge retention in tools and mechanical components.<\/li>\n
  • Mechanical strength<\/strong>: Each percentage point of chromium increases the tensile strength of martensitic steels by approximately 80\u2013100 N\/mm\u00b2.<\/li>\n
  • Influence on physical properties<\/strong>: Chromium reduces the thermal and electrical conductivity of steel and slightly lowers its toughness.<\/li>\n
  • Hardenability<\/strong>: High-chromium martensitic steels are known as self-hardening, as they can be hardened in air. This property makes them ideal for applications requiring high hardness.<\/li>\n<\/ul>\n[\/vc_column_text][vc_empty_space height=”16px”][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=”Photos under the Microscope” use_theme_fonts=”yes” css=””][vc_empty_space height=”16px”][vc_single_image image=”45245″ add_caption=”yes” onclick=”img_link_large” css=””][vc_empty_space height=”8px”][\/vc_column][\/vc_row][vc_row][vc_column]
    <\/div>[\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=”Chromium: Conclusion” use_theme_fonts=”yes” css=””][vc_empty_space height=”16px”][vc_column_text css=””]\n
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    Chromium is an essential alloying element in the production of special steels with high mechanical properties and corrosion resistance.<\/strong>
    At Bonomi Acciai<\/strong>, representatives of the Swiss Steel Group<\/strong>, we are committed to supplying certified and optimized special steels<\/strong>, ensuring top performance for the most demanding industrial sectors.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][vc_empty_space height=”16px”][\/vc_column][\/vc_row][vc_row full_width=”stretch_row_content” css=”.vc_custom_1717678542423{background-color: #ebebeb !important;}” visibility=”hidden-phone”][vc_column]

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