Structural Composition Of Stainless Steel

The corrosion resistance of stainless steel decreases with the increase of carbon content. Therefore, the carbon content of most stainless steels is low, not exceeding 1.2% at most ω C (carbon content) is even lower than 0.03% (such as 00Cr12). The main alloying element in stainless steel is Cr (chromium). Only when the Cr content reaches a certain value, the steel has corrosion resistance. Therefore, the Cr (chromium) content of stainless steel is at least 10.5%. Stainless steel also contains elements such as Ni, Ti, Mn, N, Nb, Mo, Si, Cu, etc.