Expanite’s surface hardening and heat treatment processes for stainless steel and titanium have successfully passed several food compliance tests for metal food contact according to international standards.

Our technology ensures that treated stainless steel components maintain full compliance while achieving exceptional hardness, wear resistance, and corrosion performance — ideal for components used in food processing, packaging, or handling equipment.

With Expanite, you do not have to compromise between performance and safety: our diffusion-based surface hardening is metallically clean, contains no coatings or hazardous substances, and is approved for direct food contact.

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Expanite gives you the confidence that your hardened stainless steel components are both technically superior and food-safe certified — backed by official certificates for metalic food contact.

A Clean and Environmentally Friendly Process

Unlike traditional hard chrome plating Plasma nitrading or PVD coatings, Expanite’s low-temperature heat treatment involves no toxic chemicals, heavy metals, or hazardous waste. The process is  fully traceable — aligning with the sustainability goals of modern food producers.

By choosing Expanite, manufacturers not only improve the durability of their components but also support cleaner and more sustainable production methods.

Whether you produce filling machines, cutting tools, or hygienic valves, Expanite ensures your stainless steel components last longer, resist contamination, and remain fully compliant.

Contact us to get documentation and learn more about Expanite’s certified surface hardening technology for stainless steel in the food processing industry.