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.BERYLCO-10CR is a heat treatable, beryllium-copper casting alloy having high elastic and endurance strength, high ductility and impact strength, and high electrical and thermal conductivity.