COPPER ALLOY FOR ELECTRONIC/ELECTRICAL DEVICE, MEMBER FOR PLASTICALLY DEFORMING COPPER ALLOY FOR ELECTRONIC/ELECTRICAL DEVICE, COMPONENT FOR ELECTRONIC/ELECTRICAL DEVICE, TERMINAL, AND BUS BAR

摘要

The present invention is characterized by containing 0.1 to less than 0.5 mass% of Mg, the balance being Cu and unavoidable impurities, and is further characterized in that in a tension test, when the ratio dà t /dµ t defined by true stress à t and true strain µ t is plotted on the vertical axis and true strain µ t is plotted on the horizontal axis, a strain region is included in which the gradient of dà t /dµ t is positive.