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.INCONEL ALLOY 686 has a higher Cr + Mo + W content than the current generation of corrosion-resistant nickel-base alloys and exhibits improved corrosion resistance over them. The alloy could be used in reducing mineral acids and FGD equipment.