Stainless steel chemical composition

The corrosion resistance of stainless steel decreases with the increase of carbon content. Therefore, most of the stainless steel has a low carbon content, the maximum is less than 1.2%, and some steels have a Wc (carbon content) even lower than 0.03% (such as 00Cr12). ). The main alloying element in stainless steel is Cr (chromium), and steel has corrosion resistance only when the Cr content reaches a certain value. Therefore, stainless steel generally has a Cr (chromium) content of at least 10.5%. The stainless steel also contains elements such as Ni, Ti, Mn, N, Nb, Mo, Si, and Cu.