View Sample Alloy Digest Data Sheet (PDF)

Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.

RA 400 is a ductile nickel-copper alloy that is characterized by (1) Resistance to a wide range of corrosive environments, (2) Freedom from stress-corrosion cracking and (3) Good strength and toughness over a wide temperature range. This alloy is often chosen to handle sulfuric acid under reducing conditions. It possesses useful resistance to hydrochloric acid up to about 10% in water at room temperature. It has excellent resistance to brackish water or seawater under high-velocity conditions. RA 400 is one of the few materials with good resistance to hydrofluoric acid. Its uses include marine components, caustic evaporators and chemical processing equipment.