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.BLENDALLOY 25-5000 is a nickel-iron alloy with a rectangular hysteresis loop and low coercive force. It is a powder metallurgy product and this helps to provide it with uniform and consistent magnetic properties, exceptional purity and cleanliness, precise chemcial composition and guaranteed reproducibility.