Special stainless steel is firstly different from ordinary stainless steel 304 in chemical composition. It refers to a high alloy stainless steel containing high nickel, high chromium and high molybdenum. Secondly, in terms of high temperature resistance or corrosion resistance, compared with 304, it has better high temperature resistance or corrosion resistance, which is irreplaceable for 304. In addition, from the classification of stainless steel, the metallographic structure of special stainless steel is a stable austenite metallographic structure. Since this special stainless steel is a high alloy material, the manufacturing process is quite complicated.
