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Tungsten Support Trays

Tungsten Support Trays

Tungsten support tray has excellent physical properties, such as high density, high melting point, excellent hardness, high tensile strength, high temperature resistance, low vapor pressure as well as superior wearing resistance. As a component of heating element, it is widely adopted in tungsten crucible of sapphire growth furnace under temperature as high as 3,000℃.

1. Tungsten support tray is of high purity above 99.95%;
2. Its density is as high as 18.2g/cm3;
3. The recommended usage temperature should be no more than 2500℃;
4. The thermal expansion coefficient of tungsten support tray at 1600℃ is 4.98x10-6;
5. Its yield strength at 2028℃ is about 25Mpa;
6. Tungsten support tray endures a long service life.


Diameter (mm) Height (mm) Tolerance (mm)
100-300 20-60 0.5

We also can manufacture other dimensions according to customer drawing.

1. The relative humidity of the working environment should be no more than 60%; otherwise tungsten support trays are easily catch oxidation;
2. During the installation, the support structure and foundation should be level and firm at both normal and high temperature to ensure a steady working environment;
3. With continuous pressure under high temperature, tungsten support trays may deform sharply. Therefore, support tray with high temperature creep resistance is of crucial importance. We recommend customers to try ceriated tungsten support tray.

Packing and Shipping:
We deliver pure tungsten support trays in plywood cases by ocean shipping or air transportation.

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