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.AA 771.0 is an aluminum casting alloy that age hardens at room temperature. It also may be age hardened by a number of temper heat treatments. It is recommended for heavy shock and high static loads, and also for severe fatigue loading. Its uses include aircraft guidance systems and computing devices.