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.Brightray Alloy F is a Ni-Fe-Cr electrical resistance alloy with high iron for resistance to internal oxidation. Brightray Alloy S is a nickel-chromium alloy similar to Brightray C (Alloy Digest Ni-355) but without rare earth alloy additions. Both alloys are used in industrial furnaces.