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 2740 is a medium-strength copper-zinc (brass) alloy with good ductility and toughness. It has excellent cold-working characteristics and good resistance to corrosion. It can be cold worked by conventional processes and procedures. Mueller Alloy 2740 finds its chief use in plumbing brass goods and trap tube.