Also known as tin bronze or phosphor bronze because this alloy contains higher amounts of tin and phosphorus. These additions increase the strength, corrosion resistance, and wear resistance of the alloy. The higher lead content of 544 bronze results in poor performance in hot working and welding, but good cold workability, soldering, and brazing. It has a high machinability rating as well, and is typically used for electrical connectors, bushings, gears, pinions, screw products, thrust washers, valves, and shafts.
Common Trade Names
UNS C54400, CDA 544, C544, Free-Cutting Phosphor Bronze