Alloy Density Table
Alloy Density Conversion
You can use this density table to help you calculate the weight of your castings, and fabricated metal products using the formulas given throughout this site.
This can be handy to estimate the weight of your final cast piece from the weight of the wax, or if you are making a piece in a different metal.
How to use
To convert from one alloy to another divide weight by the known alloy density and then multiply by wanted alloy density.
e.g.: A ring weighing 3.0 grams in sterling silver wanted in 18ct Yellow Gold
Calculate: 3.0 ÷ 10.4 x 15.5 = 4.5g
Data Table
Density is in grams per cubic centimetre.
Common alloy densities:
| Alloy | Density |
|---|---|
| Injection / Carving Wax | 0.95 |
| Bronze | 9.0 |
| Brass | 8.8 |
| Copper | 9.0 |
| Lead | 11.4 |
| Sterling Silver | 10.4 |
| Fine Silver | 10.6 |
| 9ct Yellow Gold | 11.2 |
| 9ct White M (medium) Gold | 12.6 |
| 9ct White S (soft) Gold | 12.6 |
| 9ct White X pal/plat Gold | 12.9 |
| 9ct Red Gold | 11.2 |
| 9ct Pink Gold | 11.2 |
| 10ct Yellow Gold | 11.6 |
| 14ct Yellow Gold | 13.1 |
| 14ct White Gold | 12.7 |
| 14ct Red Gold | 13.1 |
| 18ct Yellow Gold | 15.5 |
| 18ct Red Gold | 15.5 |
| 18ct White (soft) Gold | 16.4 |
| 18ct White (medium) Gold | 16.4 |
| 22ct Yellow Gold | 17.7 |
| 24ct Fine Gold | 19.3 |
| P40 Palladium Alloy | 11.1 |
| Platinum | 21.4 |