Cadmium free gold alloys

Details Cadmium free gold alloys Cadmium free gold alloys

C - Chemistry, Metallurgy

22

C

13/3, 75/64

C22C 5/02 (2006.01) B23K 35/02 (2006.01) B23K 35/28 (2006.01) B23K 35/30 (2006.01)

Patent

CA 1201311

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 5Ø% 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.

432618

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