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.Meltron A8 is a general purpose magnesium alloy used for making sand and permanent mold castings for service at normal temperatures. The tensile strength and ductility of A8 are considerably improved by solution heat treatment.