Hastelloy alloy is suitable for a variety of chemical industry containing oxidation and reducing media. Higher mo - Cr content makes the alloy resistant to chloride ion corrosion, and tungsten further improves the corrosion resistance. At the same time, C-276 Haslott tube is the only material that can resist the corrosion of wet chlorine gas, hypochlorite and chlorine dioxide solution, and has significant corrosion resistance to high concentration salt chloride solution such as ferric chloride and copper chloride.