What is stainless steel?

Stainless Steel (Stainless Steel) refers to steel that is resistant to weak corrosive media such as air, steam, water and chemical etching media such as acid, alkali, salt, etc., also known as stainless acid-resistant steel. In practical applications, the steel that is resistant to the corrosion of weak corrosive media is often called stainless steel, and the steel that is resistant to the corrosion of chemical media is called acid-resistant steel. Due to the difference in the chemical composition of the two, the former is not necessarily resistant to chemical medium corrosion, while the latter is generally stainless. The corrosion resistance of stainless steel depends on the alloying elements contained in the steel. The basic alloy elements of stainless steel also include nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the requirements of various uses for the structure and performance of stainless steel. Stainless steel is easy to be corroded by chloride ions, because chromium, nickel and chlorine are isoelements, and isoelements will be exchanged and assimilated to form corrosion of stainless steel.