Hygrade Casting will be closed from 20th December 2024 and re-opening again 20th January 2025. Merry Christmas & Happy New Year!
Hygrade Casting will be closed from 20th December 2024 and re-opening again 20th January 2025. Merry Christmas & Happy New Year!
We specialise in lustrous, strong, dense, and porosity-free castings from precious metals, crafted to perfection.
We’ve abandoned outdated business practices and casting methods in favour of complete transparency and cutting-edge technology, ensuring flawless results. Our services cater to high-end jewellery retailers, workshops, dental clinics, and individuals who demand professional casting services without unnecessary complications.
We’ve trained under some of the most experienced precious metal casting technicians from Australia, Germany, Switzerland and Turkey. But we didn’t stop there—we've refined those methods to be able to provide premium quality precious metal castings.
We use state-of-the-art German made casting machinery, sparing no expense on quality. Our process includes melting in a controlled positive pressure argon rich atmosphere whilst flasks are held under vacuum. Our machinery and methods eliminate gas porosity and ensures a superior, defect-free results.
We formulate and granulate our very own master alloys in house and use the highest purity available precious metals at five 9’s (99.999%) sourced from Australian bullion suppliers and non-precious base metals such at four 9’s (99.99% purity) sourced both locally and overseas.
The following precious metals are sourced directly from Australian bullion suppliers who deal directly with various Australian mines:
The following precious & base metals are sourced directly from the suppliers in Europe (who deal directly with European mines).
We don’t use Rhodium (Rh), Gallium (Ga), Iridium (Ir), Nickle (Ni), Tin (Sn) or Silicon (Si) as they as they compromise the integrity of high-quality castings.
At Hygrade Casting, quality is everything. We use the finest investment powders available on the market, distilled water and use the absolute best investment mixing equipment from Germany and Italy.
Our proprietary 14-hour burnout cycle ensures complete wax elimination and a clean, ash-free mould, delivering precise, high-quality castings. We reject rapid burnout cycles that compromise the final product.
By precisely controlling flask temperatures, casting pressures, and quenching times, we eliminate common defects such as miscasting, porosity, scorching, and brittleness. Every step of our process is optimised for perfection and precision.
You’ll receive castings that are clean, bright and have strong tensile strength with a very tight grain structure. All of our castings are hypoallergenic, meaning they’re safe for wear (rings, earrings, pendants, etc.) as we refuse to use base metals like nickel and gallium.
Our high-end clientele values quality and precision over price and speed, so we focus on a select range of premium metals to ensure the best quality castings.
18 Karat Premium White Gold (13% Palladium)
9 Karat Premium White Gold (7% Palladium)
18 Karat Premium Yellow Gold
9 Karat Premium Yellow Gold
18 Karat Premium Rose Gold
9 Karat Premium Rose Gold
Ultra 925 Silver (5% Palladium)
Platinum 950 (Copper 4.75% & Cobalt 0.25%)*
*Currently Suspended due to investment supply issues.
We will be introducing 14 Karat gold in Q4 of 2025 and we no longer cast regular 925 silver.
Tuesday – Friday (we prep castings on Monday).
Wednesdays only < Currently Suspended due to investment supply issues.
Your casting will have either a either a single or multiple (depending on the item) sprues/rods approximately 4-8mm in length and 3-4mm in diameter which you will be invoiced for.
Depending on your item, you may require additional internal thin sprues to aid in the flow of metal from the main sprue all the way to your settings. Furthermore rings that have diamonds all the way around the band will require multiple flow sprues on the inside of the ring.
We offer a de-sprue service for a small fee that basically pays for itself as you won’t be invoiced for the material we remove as we keep it.
Your casting may have tiny raised bumps (not dimples) inside or on the sides from the 3D wax printing process. These need to be filed/sanded down to be level yourself.
You’re welcome to supply your own castable waxes (injection wax, hand-carved wax, wax-printed items).
We no longer accept customer supplied resins as we refuse to cast resin.
We do not buy back or credit precious metal castings, including sprue cut-offs or scrap, as we do not entertain this business practice. If you wish to avoid being invoiced for the sprue and the hassle of refining it yourself, we offer a de-sprue service for a fee that essentially offsets the cost.
We do not offer metal buybacks or credits, as we focus exclusively on precision casting services. In the rare case of a defect, we will require to be notified of the fault or defect within 48 hours of you receiving your castings, we will then require the item sent back to us for assessment, once the items are back in our hands we can then refund/credit you what you where invoiced for.
