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

Claim 19:
20. The gold alloy composition as claimed in claim 8, wherein the gold alloy is a 18-carat gold alloy having a specific gravity of 14.78 g/cc; and a hardness of 245-265 Vickers HV-0.05 ASM F 384-11, the gold alloy composition consisting of;
75 to 75.5% by weight of gold,
0.01 to 1.5% by weight of zirconium,
0.01 to 1.5% by weight of titanium,
0 to 24.98% by weight of copper,
0 to 24.98% by weight of zinc, and
0 to 24.98% by weight of silver.