Copper alloy excellent in migration resistance

摘要

A copper alloy excellent in migration resistance comprising from 0.05 to 0.20% by weight of Fe, from 0.02 to 0.05% by weight of P, from 1.0 to 5.0% by weight of Zn, less than 2.5% by weight of Sn and the substantial balance of Cu and impurities. The copper alloy of this invention is excellent in migration resistance as comparable with brass and also excellent in stress corrosion crackings, as well as have higher strength than the copper alloy or the pure copper or the like.