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.ALUMINUM 2117 is an aluminum alloy that ages naturally after solution treatment. It has a good combination of strength, ductility and formability. It has fair resistance to general corrosion but needs protection in corrosive environments. Aluminum 2117 can be used in service up to 575 F and is used widely for high-strength rivets.