Yellow gold alloy

Details Yellow gold alloy Yellow gold alloy

1984-12-10

1985-12-10

O'Keefe, Veronica

Alloys or metallic compositions

Containing over 50 per cent metal but no base metal

Copper containing

420580, 420582, 63 21, C22C 3002, C22C 508

Patent

active

045578958

ABSTRACT:
A yellow gold alloy which resembles 10 karat gold in appearance and physical properties but has a gold content substantially less than 10 karat gold. The alloy consists essentially of 11% to 16% by weight gold, 28% to 34% by weight silver, 30% to 38% by weight copper, 8% to 12% by weight palladium, 7% to 10% by weight zinc, 0.2% to 0.4% silicon, and about 0.02% boron, and is particularly well suited for use in the manufacture of rings and other jewelry articles.

REFERENCES:
patent: 1965012 (1934-07-01), Taylor
patent: 3424577 (1969-01-01), Nielsen et al.
patent: 3767391 (1973-10-01), Tuccillo et al.
patent: 3925066 (1975-12-01), Kobru et al.
patent: 4255191 (1981-03-01), Kropp
patent: 4264359 (1981-04-01), Harris et al.
patent: 4350527 (1982-09-01), Davitz
patent: 4370164 (1983-01-01), Harris et al.
patent: 4396578 (1983-08-01), Bales
patent: 4446102 (1984-05-01), Bales

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