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.COPPER ALLOY No. 630 is a heat treatable aluminum bronze combining wear resistance with high strength and good corrosion resistance. It is recommended for propellers, pump parts, and valves, gears, shafts and pickling equipment.