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.WRM alloy 4260 is a modified tin-brass alloy with strength and formability similar to C52100 but possessing a significantly higher electrical conductivity and improved stress relaxation resistance. The alloy can be used for connectors and contact springs.