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.MUELLER Alloy 6970 (formerly MBCo. alloy 804) is a wrought alloy having excellent corrosion resistance when used with water and steam. It has good mechanical properties, excellent wear resistance and good machinability. These properties make it an ideal material for valve components.