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.Tg-12 Zinc Alloy is the general-purpose, zinc-aluminum-copper foundry alloy. It can be sand, permanent-mold or die cast, has a modest cost and a tensile strength suitable for many applications where bronze and cast or malleable iron were traditionally used. Tg-12 is extremely resistant to galling, has natural lubricity and is thus well suited to lubricated bearing and bushing applications. Tg-12 is particularly well suited to liquid and gas-pressure applications.