Zirconium Crucibles for Laboratory & Fusion Applications

702 Zirconium crucibles exhibit excellent corrosion resistance to most organic acids, inorganic acids, salt solutions, strong alkalis, and some molten salts. They are particularly effective for fusions using sodium carbonate and sodium peroxide.

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OUR ZIRCONIUM CRUCIBLES

QUALITY

All of our crucibles are manufactured under our ISO 9001 certified management system. Prior to dispatch, every crucible goes through extensive quality checks to ensure that you are getting the most from every crucible.

COMPETITIVE

We have been manufacturing zirconium crucibles for well over 40 years. Throughout this time, we have developed, researched and perfected our processes to ensure that we provide globally competitive pricing, with exceptional service.

EFFECTIVE

Zirconium offers excellent corrosion resistance and is widely used for sodium carbonate and sodium peroxide fusions. In many applications it provides a long service life, making it a cost-effective option per use compared with alternative materials.

Zirconium Crucibles - Extremely Corrosion Resistant Metal

Bulk and repeat supply of Zirconium 702 crucibles

For laboratories, industrial users and on-site labs with ongoing crucible consumption, we can support repeat supply of Zirconium 702 crucibles in standard sizes or to your specification.

Repeat supply for ongoing requirements

Blanket orders and call-off schedules to suit your usage

Standard sizes plus lids, with custom options available

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STANDARD CRUCIBLE SIZES

All crucibles are available in our standard thicknesses of 1mm and 2mm

Crucible Capacity	Top Diameter (internal)	Height (internal)	Are Lids Available?
5ml	19mm	20mm	Yes
10ml	25mm	25mm	Yes
15ml	30mm	23mm	Yes
25ml	32mm	30mm	Yes
30ml	34mm	34mm	Yes
35ml	39mm	39mm	Yes
40ml	40mm	36mm	Yes
45ml	44mm	36mm	Yes
50ml	45mm	39mm	Yes
60ml	46mm	45mm	Yes
70ml	48mm	46mm	Yes
80ml	50mm	50mm	Yes
100ml	52mm	52mm	Yes
250ml	71mm	61mm	Yes
500ml	102mm	66mm	Yes

If you require larger / thicker crucibles, or custom designs, please contact our sales team.

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Zirconium Crucible Reclaim & Recycle Scheme

To meet the growing requests from our customers, in 2025 we introduced a reclaim and recycling scheme for our Zirconium Crucibles. We offer to buy back used crucibles and recycle them with our already established refiners, who then use the material as additions to ‘Master Alloy’ production, extending the life cycle of the zirconium.

Ask our sales team for more information.

OUR CRUCIBLES ARE AVAILABLE IN:

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Zirconium Crucibles - Made in the UK

Our factory is located at the heart of the UK in Aldridge, Walsall. We are just 10 minutes away from the M6 and 30 minutes away from Birmingham, giving us an ideal location to serve both UK and export customers.

Zirconium Crucibles

Advantages

Zirconium metal is a most effective all-round crucible for fusions using sodium carbonate or sodium peroxide and is an excellent low-cost replacement for platinum crucibles. In many fusion workflows, zirconium can offer a long service life, making it more cost-effective per use than alternative crucible materials.

Sudden contact with cold, metallic surfaces is generally tolerated by zirconium crucibles.

These crucibles maintain their strength and integrity at high temperatures, providing stability in thermal processes.

Zirconium crucibles are generally non-reactive in many high-temperature processes, helping to reduce contamination risk.

In many applications, no specialised tongs or triangles are required for handling hot zirconium crucibles (unlike platinum).

The mechanical properties of zirconium, such as its toughness and resistance to mechanical wear, contribute to the durability and long lifespan of zirconium crucibles.

Zirconium has a relatively low coefficient of thermal expansion, reducing the risk of cracking under rapid temperature changes.

Zirconium crucibles are especially adaptable to the needs of the analytical chemistry laboratory, such as in strong alkaline fusions employed to reduce refractory samples to a soluble form, and for high temperature ignition ashing purposes.

Disadvantages

It is no secret that zirconium crucibles cost more per crucible than porcelain, steel or nickel, but are much cheaper than platinum crucibles.

Always avoid the use of a muffle furnace with zirconium unless a blanket of inert gas such as argon or helium is also used.

Typically not recommended above 900°C in air or zirconium crucibles will enlarge and oxidise (turn pinkish white).

Hydrofluoric acid cannot be used to clean zirconium crucibles.