Thin wall stainless steel tube

Thin-walled stainless steel pipes and fittings for building water supply all contain chromium (Cr) above 12%, and iron alloys with austenitic crystal structure formed by other metal elements are added as required. Adding nickel (Ni) can improve the ductility and toughness of the material, and make the processing easy to form and suitable for bending. Reducing the content of carbon (C) can improve the weldability of materials. Adding molybdenum (Mo) or manganese (Mn) can improve the pitting corrosion resistance and joint corrosion resistance of materials. Chromium in thin-walled stainless steel pipes reacts with oxygen and oxidant to produce passivation, and a thin and tough dense passivation film Cr2O3 is formed on the surface, which plays a role in corrosion protection.