Stainless steels used in industry can be divided into three categories according to the metallographic structure: ferritic stainless steel, martensitic stainless steel, and austenitic stainless steel. The above classification is only based on the matrix structure of the steel.
Because the effects of the stable austenite and ferrite-forming elements in the steel cannot be balanced with each other, and due to a large amount of chromium, the balance diagram S point is shifted to the left.
Stainless steel used in industry In addition to the three basic types mentioned above, there are also transitional duplex stainless steels such as martensite-ferrite, austenite-ferrite, austenite-martensite, and martensite-martensite. A carbide-structured stainless steel.
