What’s a burger doing in the blog of a plasma nitriding furnace manufacturer? The “stainless stack” is a powerful metaphor to explain plasma nitriding of stainless steels: a ‘juicy’ core, a hardened S-phase, and a regenerated passive film. This entry shows when to apply this HOT seal, which grades benefit most, and why plasma nitriding is unmatched compared to other methods.

Stainless steels are essential across industries for their corrosion resistance and durability, yet conventional heat treatment often compromises their properties. This article explores the families of stainless steels, the risks of high-temperature processes, and why plasma nitriding stands out as the most reliable alternative—delivering surface hardness, low friction, and intact corrosion resistance.