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Tantalum Sheet, Tantalum Plate

Tantalum Sheet, Tantalum Plate

Tantalum sheet is a flat, thin and rectangular metal piece made of tantalum. Tantalum is a rare, hard, and corrosion-resistant metal that is widely used in various industries such as aerospace, medical, and chemical processing due to its unique properties. Tantalum sheet is often used for its excellent corrosion resistance and high-temperature strength in various applications including chemical processing equipment, nuclear reactors, and capacitors. Tantalum sheets can be produced by various manufacturing methods such as rolling, forging, and drawing, and can be further processed into tantalum foils, strips, and plates. The thickness of tantalum sheets can vary from a few micrometers to several millimeters depending on the application requirements.

Tantalum Sheet 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 99.95% ,99.99%
Standard ASTM B365, ASTM F560 (Medical Grade)
Condition Annealed, Unannealed

Tantalum and Tantalum Alloy Sheet Specifications


Tantalum Sheet and Tantalum Alloy Sheet


Thickness 0.001”- 0.1875” x Width > 6”  x Length


UNS R05200, UNS R05400, R05252 Ta-2.5W, R05255 Ta-10W, R05240 Ta-40Nb


ASTM B365, ASTM F560 (Medical Grade)


>=99.95% or 99.99%

Tantalum and Tantalum Alloy Sheet Application

Tantalum is significantly corrosion-resistant. Acids and bases cannot damage our sheets. Sheets fabricated from tantalum are used for instance within the chemical industry for water purification or as a diffusion barrier in x-ray machines.

Tantalum and Tantalum Alloy UNS Grade

  • R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both
  • R05400, unalloyed tantalum, powder-metallurgy consolidation.
  • R05255, tantalum alloy, 90 % tantalum, 10 % tungsten, electron-beam furnace of vacuum-arc melt, or both.
  • R05252, tantalum alloy, 97.5 % tantalum, 2.5 % tungsten, electron-beam furnace or vacuum-arc melt, or both.
  • R05240, tantalum alloy, 60 % tantalum, 40 % niobium, electron-beam furnace or vacuum-arc melt.
  • Other tantalum alloys also can be customized.


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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