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.MAGANIN 130 is an electrical resistance alloy with near constant resistance over the range 15 to 40 C (59 to 104 F). It is used in precision electrical components.