Stainless steels are in general grouped into:
Stainless steels are a iron-based alloy containing at between 10.5% to 30% Cr. Stainless steel achieve its stainless characteristic through the formation of an invisible and adherent chromium-rich oxide surface film. Other alloying elements added to improve the characteristics of the stainless steel include nickel, molybdenum, copper, titanium, aluminum, silicon, niobium, nitrogen, sulphur, and selenium.
Selection of stainless steels are in general based on:
- - corrosion resistance
- - fabrication characteristics
- - availability
- - mechanical properties for specific temperature ranges
- - product cost