Patent ID: 11970762
Assignee: nan
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 21:
22. The gold alloy composition as claimed in claim 19, wherein the gold alloy is a 22-carat gold alloy having a specific gravity of 17.40 g/cc; hardness of 175-190 Vickers HV-0.05 ASM F 384-11 comprising:
91.6 to 92% by weight of gold,
0.01 to 1.5% by weight of zirconium,
0.01 to 1.5% by weight of titanium,
0 to 8.38% by weight of copper,
0 to 1.975% by weight of zinc, and
0% to 1.975% by weight of silver.