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.Luvata C1921 is a copper alloy with high electrical and thermal conductivity, good softening resistance, good stress-relaxation resistance, and good formability.