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

Claim 12:
13. The gold alloy composition as claimed in claim 7, wherein the gold alloy is a 22-carat gold alloy having a specific gravity of 17.14 g/cc; hardness of 190-205 Vickers HV-0.05 ASM F 384-11 consisting of:
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 magnesium,
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.