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.BOHNALITE J is a high-copper aluminum alloy suitable for permanent mold and sand casting. It responds to heat treatment to produce high mechanical properties. It retains its strength well and has other excellent properties at elevated temperatures. Its bearing properties are also good.