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.ALNICUS is an oriented permanent magnet alloy having a high energy product of 7.5 million gauss-oersteds. It is produced in three grades, namely, USM 55, USM 65 and USM 75.