Phosphor Bronze (CuSn8) Spring Properties and Electrical Performance

Phosphor bronzes, especially the CuSn8 alloy, are the material that best meets the 'spring' feature in switchgear and electrical connectors due to their high modulus of elasticity and excellent fatigue resistance. The phosphor addition increases the ductility and corrosion resistance of the alloy, allowing it to work in harsh conditions. Its non-magnetic structure makes it indispensable for precision electronic devices and submarine technologies. Although its thermal conductivity is lower than pure copper, its mechanical strength prevents deformation at contact points. Point Metal accelerates your production processes by offering phosphor bronze products in roll and sheet form, along with precision slitting services.