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.Duralcan F3S.xxS is a heat treatable aluminum alloy-matrix gravity composite (MMC). The base alloy is similar to 359 (Alloy Digest Al-188); the discontinuously reinforced composite is silicon carbide.