Cadmium free gold alloys

Details Cadmium free gold alloys Cadmium free gold alloys

1983-07-19

1984-09-25

Rutledge, L. Dewayne

Stock material or miscellaneous articles

All metal or with adjacent metals

Shaped configuration for melting

428637, 428671, 428672, 420512, 420587, 219 85, 228 56, C22C 502

Patent

active

044736215

ABSTRACT:
This invention relates to brazing alloys for use primarily in jewellery manufacture having compositions consisting of 30 to 80 weight % gold, 0 to 20 weight % silver, 20 to 60 weight % copper, 5 to 20 weight % zinc, 0 to 5.0.% of a group VIII metal as a grain refiner for gold, and 0.5 to 3.0 weight % indium. These alloys have desirable properties, particularly in the 14 karat gold range, without the health hazards associated with the use of cadmium.

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