| 摘要 |
PURPOSE: A copper alloy having high strength, high electric conductivity and high thermal conductivity is provided, which is especially useful to spot/seam welding tip. CONSTITUTION: This copper alloy is obtained by adding, by weight, 1.0 to 1.2% nickel, 1.0 to 1.2% cobalt, 0.3 to 0.5% rhodium, 0.3 to 0.5% beryllium and 0.05 to 0.1% barium and 0.05-0.1% iron to copper as the main component.
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