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 Copper 1220 is a deoxidized copper with high residual phosphorus (nominally 0.02%). It has rather low electrical conductivity but it is not susceptible to embrittlement by hydrogen. Its low electrical conductivity is mainly caused by the phosphorus. It has excellent cold-working characteristics and can be joined by several methods. Among its many applications are air conditioners, gas lines, heater lines, oil-burner and plumbing tubes, dairy tubes and oil lines.