Stainless steel (stainless steel) refers to the steel corrosive medium and acid, alkali, salt and other chemical etching medium corrosion resistance of air, steam, water, weak, also known as stainless acid resisting steel. In practical application, the corrosion resistance of the steel is often called the stainless steel, and the corrosion resistance of the steel is called the acid proof steel. Due to the difference in chemical composition, the former is not necessarily resistant to chemical medium corrosion, and the latter generally has a stainless steel. The corrosion resistance of the stainless steel depends on the alloy elements contained in the steel. Basic alloy elements of stainless steel and nickel, molybdenum, titanium, niobium, copper, nitrogen and so on, to meet the requirements of various uses for stainless steel structure and performance. So easy to be chlorine ion corrosion, because the chromium, nickel, chloride is collocated essences and collocated essences will swap assimilated and forming of stainless steel corrosion.
Main classification:
1, ferritic stainless steel
2, austenitic stainless steel
3, austenite ferrite dual phase stainless steel
4, martensitic stainless steel
5, precipitation hardening stainless steel