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Home Refractory Metals Tantalum
Find the form your project needs—from capillary tubing and sheet or foil to rods, sputtering targets, crucibles and powders.
Open a product page for form-specific options, or send your grade, dimensions, quantity and drawing for review.
High-Purity Tantalum Available — up to 99.999% (5N); MOQ 5 kg. This option is for unalloyed tantalum material, not Ta alloys or compounds. Specify the required form in your RFQ; the MOQ basis, impurity test basis, finished-form purity and CoA scope are confirmed in the quotation.
Start with the form that matches your process. The full product family, including evaporation materials, compounds and alloys, appears below.
Material: tantalum or alloy grade, required purity and material condition where known.
Geometry: form, drawing, finished dimensions, tolerances and surface or end requirements.
Project: quantity, application, operating environment, inspection and documentation needs.
Browse the complete MetalsTek tantalum product range below. Each product page provides form-specific details; drawings and special requirements can be reviewed through the RFQ form.
Tantalum (Ta) is a refractory metal used where corrosion resistance, high melting point or a specified material condition matters. Compare available forms above, then confirm grade, dimensions and operating environment on the relevant product page or drawing.
Pure Tantalum
Shapes: lump, ingot, foil, strip, sheet, plate, tube, pipe, capillary, bar, rod, wire, wire mesh, disc, mesh, crucible, flange, marker band, ribbon, powder, single crystal
Purity: Ta≥99.9%
Tantalum Alloys
Shapes: foil, strip, sheet, plate, board, tube, pipe, rod, bar, wire, disc, powder, etc.
Available in various forms.
Tantalum Compounds & Catalyst
Tantalum Oxide (Tantalum Pentoxide, Ta2O5): powder, 3N-5N
Tantalum Chloride (Tantalum Pentachloride, TaCl5): powder, >99.9%
Tantalum Carbide (TaC): powder, >99%
Tantalum Silicide (TaSi2): powder, ≥99.9%
Lithium Tantalate Wafers (LiTaO3 Wafers)
Tantalum Evaporation Materials
Ta, Ta/Al, Ta/Mo, Ta2O5, TaN, TaC, TaSi2, TaS2, TaB2, TaSe2, TaTe2, etc.
Purity: ≥99.9%
Other Tantalum Products
Lithium Tantalate Wafers, Tantalum Single Crystal, Potassium Tantalate (KTaO3) Crystal Substrates, etc.
| Phase At STP | Solid | Electrical Resistivity | 131 nΩ⋅m (at 20 °C) |
| Melting Point | 3,290 K (3,017 °C/5,463 °F) | Magnetic Ordering | Paramagnetic |
| Boiling Point | 5,731 K (5,458 °C/9,856 °F) | Young'S Modulus | 186 GPa |
| Density (Near R.T.) | 16.69 g/cm3 | Shear Modulus | 69 GPa |
| When Liquid (At M.P.) | 15 g/cm3 | Bulk Modulus | 200 GPa |
| Tensile Strength | 250(1725) KSI(Mpa)-RT | Poisson Ratio | 0.34 |
| Heat Of Vaporization | 753 kJ/mol | Mohs Hardness | 6.5 |
| Molar Heat Capacity | 25.36 J/(mol·K) | Vickers Hardness | 870–1,200 MPa |
| Thermal Expansion | 6.3 µm/(m⋅K) (at 25 °C) | Brinell Hardness | 440–3,430 MPa |
| Thermal Conductivity | 57.5 W/(m⋅K) | Cas Number | 7440-25-7 |
| Element | C | O | N | H | Fe | Mo | Nb | Ni | Si | Ti | W |
| R05200 (%,Max) | 0.01 | 0.015 | 0.01 | 0.0015 | 0.01 | 0.02 | 0.1 | 0.01 | 0.005 | 0.01 | 0.05 |
| R05400 (%,Max) | 0.01 | 0.03 | 0.01 | 0.0015 | 0.01 | 0.02 | 0.1 | 0.01 | 0.005 | 0.01 | 0.05 |
Choose the tantalum form for the part geometry and service conditions. The examples below show common application areas; suitability depends on grade, dimensions, atmosphere and the specific operating environment.
Tantalum and niobium, often called “sister elements,” share several similarities due to their close relationship in the periodic table and comparable chemical properties. These elements exhibit nearly identical chemical behaviors and physical properties, often occurring together in nature due to their analogous atomic structures.
For more about Niobium, please click Niobium Products.
Use these guides and project evidence when comparing forms or preparing a drawing-based tantalum inquiry.
How to specify form, thickness, surface, tolerance and drawings for flat tantalum stock.
A practical checklist for grade, diameter, condition, documentation and wire RFQs.
A real project showing the drawing, fabrication, inspection and packaging decisions behind a 100-piece order.