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.ASARCO Z.D.C. No. 7 is a zinc die casting alloy which will be found particularly helpful in casting relatively large, complicated shapes and intricate parts which are not free to shrink in the dies because of cores, slides, etc. and require a hardware finish for subsequent plating or organic finishes.