Soft copper alloy conductors and their method of manufacture

摘要

Soft copper alloy conductors having a 0.2% proof stress of 12 kg/mm2 or less which contains 5-200 p.p.m. of calcium, the balance substantially consisting of copper, and hot-dip coated copper alloy conductors made by coating the surface of copper alloy conductors of said composition with tin or lead or their alloy by hot-dipping, and a method of manufacturing said copper alloy conductors.