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.Copper No. C15720 is a powder metallurgy, dispersion strengthened copper alloy with A12O3 is a powder metallurgy, dispersion strengthened copper alloy with A12O3 as the dispersoid. It offers good strength (about 70000 psi, annealed) and electrical conductivity (89% IACS, volume basis). It has broad and varied electrical apparatus applicability.