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.BELMONT ALLOY 1918 is a general-purpose aluminum casting alloy that can be sand cast and permanent-mold cast. It is used widely for bearings and is particularly suited for heavy-duty bearings such as those used for diesel engine crankshafts.