C173, or Alloy M25, is a beryllium copper alloy renowned for its exceptional machinability, boasting a rating of 50% due to the added lead content. This alloy exhibits remarkable corrosion resistance, making it a preferred choice for various applications. Its excellent workability and formability further enhance its appeal. C173 is well-suited for soldering, brazing, as well as gas shielded, coated metal, and resistance welding, though oxyacetylene welding is not recommended for this material.

Its versatility finds practical use in numerous industries, including electrical components, switches, connectors, fasteners, pump parts, welding equipment, and firing pins. Whether for intricate machining or critical components, C173 proves to be a reliable and efficient choice.