C172, also known as Alloy 25, stands out as a remarkable copper beryllium alloy, offering unparalleled strength among copper alloys while maintaining superior electrical conductivity compared to other high-strength copper variants. Despite its relatively low machinability rating of 20%, it compensates with outstanding formability and possesses the added benefits of being non-magnetic and non-galling. While it's not recommended for oxyacetylene welding, it proves highly suitable for soldering, brazing, gas shielded welding, coated metal welding, and resistance welding.

This versatile alloy finds widespread applications in various industries, with some notable uses being bushings and bearings in the aerospace sector, fasteners, electrical components, industrial pumps, bearings, firing pins, and oil and gas applications. Its excellent combination of strength, formability, and conductivity makes it a preferred choice for critical components in demanding engineering applications.