Iridium products

Iridium crucibles


Application: for growing oxide single-crystals with a high melting point such as lithium tantalate, sapphires and others, as well as in scientific research.

Materials: iridium Ir99.9; Ir99.8; Ir99.95

Regulatory document: company standard STO 00195200-063-2011

Iridium crucibles are produced in two forms:



Dimensions Cylindrical crucibles, type A and B*  Conical crucibles, type A and B* 
Bottom diameter
From 20 to 240 mmFrom 30 to 90 mm
Crucible diameter
From 20 to 240 mmFrom 35 to 105 mm
Wall thickness
From 1 to 4 mmFrom 1 to 4 mm
From 20 to 350 mmFrom 40 to 100 mm
*Type A: thickness of side walls and bottom are equal.
Type B: bottom is thicker than side walls with a coefficient of 1.2 to 1.3.

Crucibles, holders, spinnerets, screens, and other iridium products for single-crystals growing can be manufactured upon the customer's request.

For more information about crucibles made of other precious metals and their alloys click here.

For further details, please contact us.

To place an order, kindly provide information as below:

CategoryProductRequired informationOrder quantity
Technical productsCrucibles; other technical products

1. Alloy, contents of major alloy components;

2. Product number or product drawing.

3. Unit pricing (per 1 gram of alloy/per piece; counting per piece)

Required quantity, unit of measurement

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