Expanite surface hardening on stainless steel
Goes beyond the surface to make you more competitive
Expanite is a game-changing surface hardening process for stainless steel coating that will make you and your customers much more competitive. Our patented and proven technology, scientific know-how and flexible delivery model significantly improves product performance, quality, and reduces costs.
Not just another coating
The Expanite treatment effectively removes the oxide film covering stainless steels. This allows controlled incorporation of carbon and nitrogen 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.
- ...are applicable to the most common stainless steel alloys including austenitic, martensitic, ferritic and duplex grades
- ...are gaseous, thus properties can be tailored to match your exact needs
- ...can deliver parts that withstand 1000+ hours in salt spray,while having a controlled surface hardness of 1000-1800HV
- ...run on a day-to-day basis, resulting in lead-times significantly lower than alternatives
- ...can either be offered from our treatment centre or implemented on-site, directly in your production line
Tailor-made solutions to your needs
A high-temperature solution-nitriding process pushing nitrogen deep into the bulk material. This re-establishes the core hardness of the material, which creates a unique load-bearing capacity and secures corrosion resistance second-to-none.
Get all the best things of annealing while maintaining core hardness and increasing corrosion resistance.
A low-temperature surface-hardening process, by which a double hardened zone containing nitrogen and carbon is established. Nitrogen adds increased surface hardness while carbon bridges the gap to the softer core. A smooth hardness profile is tailored!
Controlled surface hardness between 1000-1800HV.
By combining the ExpaniteHigh-T and ExpaniteLow-T processes you get a previously unseen surface hardness founded on top of a bulk material, which has very strong load-bearing capacity. Superior corrosion and wear resistance and fatigue properties is the outcome – SuperExpanite is simply setting new standards for what can be achieved by surface-hardening stainless steel.
Superior corrosion, galling resistance, fatigue and wear properties on stainless steel.
- We deliver at our promis
At Expanite the standard deliverytime is 6-9 working days.
We are well aware of the importance to customers of on-time delivery. High delivery performance is therefore crusial for us, and something we continuously monitor and document.
Se the latest report on our Realized delivery time (days) in this PDF document