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.AMPCOLOY 712 is a medium-strength casting alloy. Its typical tensile strength is 60,000 psi in the as-cast condition. It has a good combination of strength, ductility and resistance to wear and corrosion. It is used widely for gears and formerly was known as Nickel Gear Bronze.