18K Ni-FREE AGE HARDENABLE WHITE GOLD ALLOY
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United States of America Patent
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May 6, 2014
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May 6, 2013
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Abstract
The present invention is directed to a reduced-cost 18K white gold alloy that is Ni-free, and otherwise contains a low w % of precious metals, including about 7 w % palladium, exhibits a color which is considered white, and shows age hardening characteristics commensurate with nickel containing 18 Karat gold alloys.
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