Machinable copper alloys for electrical connectors

摘要

The present disclosure concerns a machinable precipitation hardenable copper alloy comprising between 1 and 4.1 wt. % of Ni; between 0.3 and 3.0 wt. % of Si; between 0.4 and 4.0 wt. % of Pb; no more than 0.5 wt. % of Sn; no more than 0.5 wt. % of Cr; no more than 0.5 wt. % of Zn; no more than 0.5 wt. % of Zr; no more than 0.1 wt. % of Fe; no more than 0.3 wt. % of P; and unavoidable impurities; the remainder being constituted essentially of Cu. The present disclosure further concerns a production method for obtaining a semi-finished copper alloy product comprising the copper alloy. Said copper alloy product can be used for manufacturing electrical connectors such as sockets and pins.