Tantalum Crucibles



Product Details


Tantalum Crucible is well known for its corrosion resistance to acids. It also is immunne to the attack by aqua regia at temperatures

below 150 degree Celsius. It is very ductile and can be easily fabricated. It is also a good conductor of heat and electricity.

It forms a protective oxide layer to combat further reactions by corrosive materials. It has a high melting point and strength.

It is extremely inert, except towards hydrofluoric acids and sulfuric acids. It is also prone to corrosion by alkaline solutions.





Molecular Weight



Silvery-gray solid

Melting Point

3017 °C

Boiling Point

5458 °C


16.69 g/cm3 (20 °C)

Crystal Phase / Structure

α: body-centered cubic (bcc) / β: tetragonal

Thermal Expansion

6.3 µm/m·K

Thermal Conductivity

57.5 W/m·K

Young's Modulus

186 GPa

Vickers Hardness

870–1200 MPa

Poisson's Ratio


Electrical Resistivity

131 nΩ·m (20 °C)


1.5 Paulings

Specific Heat

140 J/kg·K

Heat of Fusion

36.57 kJ/mol

Heat of Vaporization

753 kJ/mol




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