The high intensity high tenacious Cu alloy null whose characteristic anisotropy

摘要

PURPOSE:To provide the subject Cu alloy with high strength and toughness, to reduce its characteristic anisotropy and to improve its soldering adhesion by furthermore adding specific amounts of Ca, Mg, Zn and Cd to a Cu alloy in which the contents of Ti, Cr and iron metals are specified. CONSTITUTION:The compsn. of the high strength and high toughness Cu alloy is formed with 2.1-5% Ti, 0.02-0.5% Cr, one or more kinds of 0.15-0.95% iron metals, furthermore, one or more kinds among 0.01-0.5% Ca, Mg, Zn and Cd and the balance Cu with inevitable impurities. Said Cu alloy has high strength and high toughness and less characteristic anisotropy. Since the increase does not occur in said characteristic anisotropy when the working degree increases, its further thinning is permitted. The soldering adhesion of said alloy is moreover excellent, so that it can be used for an electrical contact spring material such as a connector and a switch.