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.Zilloy 20 is a wrought zinc-base alloy having good stability and creep resistance. It is recommended for architectural applications, and for formed articles requiring maximum creep resistance.