Patent ID: 8795446

Claim:
A copper alloy material, having an alloy composition comprising any one or both of Ni and Co in an amount of 0.4 to 5.0 mass % in total, Si in an amount of 0.1 to 1.5 mass %, at least one element selected from a second group of elements to be added consisting of B, P, Cr, Fe, Ti, Zr, Mn, Al, and Hf in an amount of 0.005 to 1.0 mass % in total, and at least one element selected from a third group of elements to be added consisting of Sn, Zn, Ag, and Mg in an amount of 0.005 to 2.0 mass % in total, with the balance being copper and unavoidable impurities, wherein a ratio of an area of grains in which an angle of orientation deviated from S-orientation {2 3 1}<3 4 6> is within 30°is 60 % or more, according to a crystal orientation analysis in EBSD measurement.