202cold rolled stainless steel seamless tube
Currently used, classification is based on characteristics of steel structure and characteristics of the chemical composition of steel as well as combining the two methods of classification. Generally consists of Martensitic stainless steel, stainless steel, austenitic stainless steel, duplex and precipitation hardening stainless steel, etc, or divided into Nickel chromium stainless steel and stainless steel are two major categories.