Hardware Stainless Steel Features

Steel resistant to weak corrosive media such as air, steam and water and chemical corrosive media such as acid, alkali and salt. Also known as stainless acid steel. In practical application, the steel that is resistant to weak corrosive medium is often called stainless steel, and the steel that is resistant to chemical medium corrosion is called acid resistant steel. Due to the difference in chemical composition, the former is not necessarily resistant to chemical media corrosion, while the latter generally have no rust. The corrosion resistance of stainless steel depends on the alloying elements contained in the steel. Chromium is the basic element of stainless steel corrosion resistance, when the amount of chromium in steel reaches 1.2%, chromium and oxygen in the corrosion medium, forming a very thin oxide film on the surface of steel (self-passivation film), can prevent further corrosion of steel matrix. In addition to chromium, commonly used alloying elements are nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the various uses of stainless steel structure and performance requirements.

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