Stainless steel is defined as stainless, corrosion resistance as the main characteristics, and chromium content of at least 10.5%, carbon content of up to 1.2% according to GB/T20878-2007.
Stainless steel is the abbreviation of stainless acid-resistant steel, resistant to air, steam, water and other weak corrosive media or stainless is called stainless steel sheets.