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Tantalum Crucible

Tantalum Crucible

Tantalum crucibles are containers made of tantalum, a rare and hard metal with a high melting point of 3,017 °C (5,463 °F). Tantalum crucibles are widely used in high-temperature applications such as chemical processing, semiconductor manufacturing, and metallurgy. They are preferred over other materials due to their excellent resistance to corrosion, high thermal conductivity, and low coefficient of thermal expansion. Tantalum crucibles are available in various sizes and shapes, and they can be customized to meet specific requirements. They are typically made by vacuum arc melting, powder metallurgy, or hot isostatic pressing techniques. Tantalum crucibles are an essential component in various industries that require high-temperature processing and storage of chemicals and materials.

Tantalum Crucibles Properties (Theoretical)

Molecular Weight 180.94
Appearance Silvery-gray solid
Melting Point 3017 °C
Boiling Point 5458 °C
Density 16.69 g/cm3 (20 °C)
Solubility in H2O N/A
Crystal Phase / Structure α: body-centered cubic (bcc) / β: tetragonal
Electrical Resistivity 131 nΩ·m (20 °C)
Electronegativity 1.5 Paulings
Heat of Fusion 36.57 kJ/mol
Heat of Vaporization 753 kJ/mol
Poisson's Ratio 0.34
Specific Heat 140 J/kg·K
Thermal Conductivity 57.5 W/m·K
Thermal Expansion 6.3 µm/m·K
Vickers Hardness 870–1200 MPa
Young's Modulus 186 GPa


Purity 99.9% - 99.99%
Size Customized, 10-500mm OD x 10-600mm H

Tantalum Crucible Specifications

We supply all kinds of Tantalum crucibles and other Tantalum parts (including heaters, heat insulation screens, sheets and supports, etc.) used in the process of sapphire growth and rare-earth melting and we can manufacture the products according to customers’ drawings and specific requirements.

Diameter (mm)

Wall Thickness (mm)

Length (mm)

30 ~ 50

2 ~ 10

30 - 500

50 ~ 100

3 ~ 15

100 ~ 150

3 ~ 15

150 ~ 200

5 ~ 20

200 ~ 300

8 ~ 20

300 ~ 400

8 ~ 30

400 ~ 450

8 ~ 30

450 ~ 500

8 ~ 30

  • Seamless Tantalum Crucible is made by a seamless method that will yield a product meeting the requirements of the specification.
  • Welded Tantalum Crucible is made from a flat-rolled product by an automatic or semiautomatic fusion welding process with no addition of filler metal.


We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.

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