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 3470 (formerly MBCo. Alloy 312) is a wrought medium-leaded brass alloy intended for screw-machine applications where excellent thread-rolling, knurling and cold-forming properties are required. It is characterized by an excellent combination of free-machining and cold-working properties. Typical applications include valve stems, threaded connectors and flare fittings.