Corrosion resistance of tailings pipeline: Addition of concentrated nitric acid, fuming sulfuric acid, chlorosulfonic acid and other strong oxidizing acids, the ability of most organic and inorganic acids, alkalis, salts, good corrosion resistance to stress corrosion, the ability of 10% nitric acid, formic acid, acetic acid , 36% or less of hydrochloric acid, hydrobromic acid 20%, the dilute hydrofluoric acid, various concentrations of carbonic acid, boric acid, butyric acid, alkali and salt majority, mercury, air, NH3, CO2, CO, NO2, HCL and other corrosive gases.