Silver colored alloy with low percentage copper

Details Silver colored alloy with low percentage copper Silver colored alloy with low percentage copper

1997-08-01

1999-03-16

Ryan, Patrick

Metal treatment

Stock

Noble metal base

420501, 420502, 420504, 420506, 148431, C22C 500

Patent

active

058824413

ABSTRACT:
A silver colored alloy, highly tarnish resistant, corrosion resistant and brittleness free is provided. The alloy includes 90% to 94% by weight silver, 3.50% to 7.35% by weight zinc, 1% to 3% by weight copper, and 0.1% to 2.5% by weight silicon. The alloy is suitable for rings, earrings, bangles and other jewelry.

REFERENCES:
patent: 4944985 (1990-07-01), Alexander et al.
patent: 4973446 (1990-11-01), Bernhard et al.
patent: 5037708 (1991-08-01), Davitz

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