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.ILLIUM B was developed as a bearing alloy for maximum wear and galling resistance in high concentrations of hot sulphuric acid. The alloy is capable of being age hardened.