Since 1972 REGAL CASTINGS has offered continuous services to manufacturing jewellers in New Zealand and are the longest serving contract casters in the country. We ensure the best service possible with a consistent high standard of quality.
Casting alloys Our in-house metallurgists are constantly working on perfecting our alloys to assist in all aspects of jewellery manufacture. Our specialised range of alloys has been developed over many years of working closely with our customers.
Castings Are Available In The Following Alloys:
|Silicon Bronze||14ct Red|
|Manganese Bronze||14ct White|
|Sterling Silver||18ct Yellow|
|Fine Silver||18ct Red|
|9ct Yellow||18ct White Medium|
|9ct Red||18ct White Soft|
|9ct White S||22ct Yellow|
|9ct White PD||24ct Yellow-Fine Gold|
|10ct Yellow||PD40 & PD970 Palladium Alloys|
|14ct Yellow||Platinum 950|
We will cast in other alloys on request.
All castings are bead blasted to ensure you receive the highest quality finish. We also offer at no charge an extra chemical stripping service.
We have developed our own specialized mould cutting techniques and offer an urgent service when required at no extra cost. We have several moulding materials available to allow for the most suitable option and the best result from your patterns.
Use this density table to help you calculate the weight of your castings from the weight of a wax, or to estimate the weight of a finished piece from the weight in a different alloy.
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 is made of Sterling, and you want to know the weight of the same ring cast in 18ct Yellow.
3.0 ÷ 10.4 x 15.5
= 4.5 grams in 18ct Yellow
Alloy Density Table
|Alloy Name||Density (grams per cm³)|
|9ct White M (medium)||12.6|
|9ct White S (soft)||12.6|
|9ct White X pal/plat||12.9|
|14ct Red||13.1 |
|18ct White (soft)||16.4|
|18ct White (medium)||16.4|
|24ct Fine Gold||19.3|
|P40 Palladium Alloy||11.1|