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.ALLOY A750 is an aluminum bearing alloy similar in composition to 750 alloy except for an addition of silicon. This composition provides better casting characteristics than 750 alloy, and A750 has been used extensively in the -T5 temper for large rolling mill bearings where its high order of anti-scuffing properties, low friction and high wear resistance under conditions of boundary and thin-film lubrication make it particularly suitable.