NICROFER 4520 HMo is an austenitic nickel-chromium-iron alloy with increased molybdenum content and additions of columbium (niobium) and copper. It has excellent resistance to corrosion. This alloy is used widely in the chemical and petrochemical industries for components handling sulfuric and phosphoric acids. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-299. Producer or source: Vereingte Deutsche Metallwerke AG.