| 摘要 |
PROBLEM TO BE SOLVED: To obtain a copper alloy for electrical and electronic parts good in strength, electrical conductivity, heat resistance, arc wear resistance, mechanical wear resistance or the like and also small in the reduction of thermal conductivity owing to heat generation by energizing. SOLUTION: This copper alloy has a compsn. contg., by weight, 0.01 to 0.3% Ag, 0.005 to <0.02% Fe and 0.005 to <0.05% P, moreover contg., at need, one or >= two kinds selected from each element of B, C, S, Ca, V, Ga, Ge, Nb, Mo, Hf, Ta, Bi, Pb, Be, Mg, Al, Ti, Cr, Mn, Ni, Co, Zr, Cd, In, Sb, Si, Sn, Te and Au by 0.001 to 0.1% and 0.001 to 1% Zn by <=1% in total, and the balance Cu with inevitable impurities.
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