摘要 |
An alloy for making weld gun arm castings comprises about 0.35 to 0.8 wt. % Be, about 0.2 to 0.9 wt. % Co and about 1.5 to 2.4 wt. % Ni, with the balance being Cu and incidental impurities, the (Ni+Co)/Be ratio in the alloy being at least about 4.
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