| 摘要 |
PROBLEM TO BE SOLVED: To obtain a copper alloy for electrical/electronic parts which has excellent proof stress, electric conductivity, spring thresholds, stress relaxation resistance and bending workability, and has excellent Sn plating properties as well. SOLUTION: The copper alloy comprises, by mass, 0.5 to 2.4% Fe, 0.02 to 0.1% Si, 0.01 to 0.2% Mg, 0.01 to 0.7% Sn, 0.01 to 0.2% Zn, <0.03% P,≤0.03% Ni,≤0.03% Mn, and the balance Cu with inevitable impurities. Ifrequired, 0.0005 to 0.015% Pb or/and one or more kinds of metals selected from Be, Al, Ti, V, Cr, Co, Zr, Nb, Mo, Ag, In, Hf, Ta and B of≤1% in total are incorporated therein. COPYRIGHT: (C)2004,JPO
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