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.ZA-8 is a zinc-base foundry alloy capable of being sand, permanent mold gravity or die cast (hot-chamber machine). ZA-8 should be the first choice when considering die casting the ZA family (3 alloys) due to its cost effective hot-chamber castability.