{"id":179,"date":"2025-01-13T14:39:17","date_gmt":"2025-01-13T14:39:17","guid":{"rendered":"https:\/\/expanite.com?page_id=179"},"modified":"2026-08-18T08:07:19","modified_gmt":"2026-08-18T08:07:19","slug":"surface-hardening-of-stainless-steel","status":"publish","type":"page","link":"https:\/\/expanite.com\/it\/le-soluzioni-indurimento-superficiale\/indurimento-dellacciaio-inossidabile\/","title":{"rendered":"Indurimento dell'acciaio inossidabile "},"content":{"rendered":"

Surface Hardening of Stainless Steel
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Game-changing Sustainable Surface Hardening Technology<\/h2>\n
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Surface hardening of stainless steel is a heat treatment<\/a> technique that only very few companies master and nobody does it like Expanite. Expanite\u2019s patented and proven technology, scientific know-how and flexible delivery model significantly improves product performance, quality and reduces costs.<\/p>\n<\/div>\n

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The Expanite hardening processes effectively removes the oxide layer protecting stainless steels. This allows for controlled diffusion of nitrogen and\/or carbon atoms in the underlying metal. The hardened layer is characterized by an expansion of the material structure. We call this zone expanded austenite, expanded martensite or simply, Expanite\u00ae.<\/p>\n<\/div>\n

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Sustainability Might Be a Choice, But With Expanite It\u00b4s a Given!<\/h2>\n
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Since the foundation of the company sustainability has been close to the hearts of the founders. Not only is the sole purpose of the treatments aimed at extending lifetime of components and systems, the \u201cpath\u201d to achieve this life-extending state is more sustainable compared to alternative\/competitive products: the ultra-short processing times yielding lowest possible carbon footprint, the lack of chemicals used before & after processing, and the non-toxic-waste processing are all core elements of Expanite\u2019s technology, not a choice!<\/p>\n<\/div>\n

Versatility…<\/h2>\n
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The individual processes are referred to as SuperExpanite, ExpaniteLow-T and ExpaniteHigh-T \u2013 and each of these processes comes in standard versions or tailored. However, the key is that no matter the stainless steel alloy<\/a> – austenitic, martensitic, ferritic or duplex grades – there is an Expanite solution.<\/p>\n

And the outcome is a significant improvement in wear and galling resistance<\/a> due to a surface hardness of approx. 700-1300HV, and typically maintained or even improved corrosion resistance. Expanite processes are running daily, resulting in lead-times significantly lower than alternatives and full flexibility in when parts can be delivered for processing.<\/p>\n

For those already using some sort of wear or galling prevention, Expanite\u2019s surface hardening of stainless steel can be used for:<\/p>\n<\/div>\n