Stainless steel, also referred to as SS or inox, is an alloy consisting primarily of iron, chromium, nickel and carbon. Stainless steel must contain a minimum of 11-12% chromium and a maximum of 1.2% carbon. In addition, many types of stainless steel also contain the elements molybdenum, titanium, manganese, nitrogen and silicon.
Stainless steel is divided into sub-families depending on its metallurgic structure.
Family | C | Cr | Ni |
---|---|---|---|
Martensite | < 1,2% | 10,5 - 17% | < 6,0% |
Ferrite | < 1,2% | 10,5 - 29% | < 1,5% |
Austenite | < 1,2% | 16 - 28% | 3,5 - 36% |
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