Stainless steel pipe fittings are not easy to rust and have a great relationship with the composition of stainless steel. In addition to iron, stainless steel contains chromium, nickel, aluminum, silicon, etc. The chromium content of general stainless steel is generally not less than 12%, and even up to 18%. After adding chromium and other elements to steel, the properties of steel can be changed. For example, the molecular structure of steel is more uniform, and a dense oxide protective film is more likely to be formed on the surface of steel, thereby greatly improving the corrosion resistance of stainless steel. Therefore, stainless steel can resist the corrosion of fire, water, acid, alkali and various solutions, and does not rust. Scientists found that the more uniform the internal structure of steel, the more closely related the various components, the more difficult it is for corrosives to invade. In addition, an oxide protective film is attached to the surface, which is like putting on steel armor. It will not rust easily.
