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.Ternalloy 8 is the registered trade name for a natural aging, precipitation-hardening aluminum casting alloy affording high mechanical properties. It is of the aluminum-magnesium-zinc type of alloy suitable for sand and permanent mold castings. This alloy has good cast-ability, excellent machinability, high corrosion resistance, is extremely fine grained and takes a high polish.