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Tantalum Foil

Tantalum Foil

Tantalum foil is a thin sheet of tantalum metal that is commonly used in various applications in electronics, aerospace, and chemical industries. Tantalum foil is known for its excellent corrosion resistance, high melting point, and good electrical conductivity. It is often used as a protective coating or barrier layer in electronic components, as a heating element in high-temperature furnaces, and as a component in capacitors.

Tantalum foil is typically produced by rolling or annealing tantalum sheets to a thickness of a few microns to a few millimeters. It is available in various grades and sizes, depending on the application requirements. Tantalum foil is also characterized by its high ductility, which allows it to be easily formed into different shapes and sizes.

Tantalum Foil 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%
Standard ASTM B708-98
Condition Annealed, Unannealed

Tantalum Strip/Foil Specifications


Tantalum and Tantalum alloy Strip/Foil


Thickness: 0.001”- 0.1875” *Width: < 6” *Length: TBD         


UNS R05200, UNS R05400, R05252 Ta-2.5W, R05255 Ta-10W, Ro5240 Ta-40Nb




> =99.95% or 99.99%




Tantalum Ribbon

Tantalum Ribbon can be used as lamp components where they provide excellent performance due to their very low production tolerances and guaranteed flawless surface.

Thickness(mm) Tolerance(mm) Width(mm) Tolerance(mm) Length(mm)
0.03 ±0.003 1 ±0.1 50000
0.03 ±0.003 1.5 ±0.1 50000


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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