Tantalum & TaW

[Ta pure 99.95 % | TaW2.5 | TaW10]

Tantalum is a refractory metal with a high melting point and is also exceptionally cold ductile and corrosion-resistant. Compared to tungsten, it is easier to form and machine even at lower temperatures. Tantalum-tungsten (TaW) combines the malleability and corrosion resistance of tantalum with the hardness and heat resistance of tungsten - ideal for applications with high temperature and media loads. Typical fields of application range from equipment in the chemical industry (reactors, heat exchangers, pipes) to high-temperature components (furnace boats, crucibles, sheet metal, PCD tool manufacture) and medical technology (implants, tubes), electronics (capacitors) and superconductor technology.

Grades & data sheets

Variety	Composition	Available as	data sheet
Ta	Ta ≥ 99.95 %	Wires, rods, sheets, strips, evaporation boats, crucibles, tubes & according to drawing	Material data sheet
TaW2.5	Ta > 97.5 % / W 2.5 %	Wires, rods, sheets, strips, tubes & according to drawing	Material data sheet
TaW10	Ta > 90 % / W 10 %	Wires, rods, sheets, strips, tubes & according to drawing	On request

The key features are as follows: Ta: cold-ductile & corrosion-resistant; TaW: temperature-resistant & stable

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Melting point: 2996 °C

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Density: 16.6 g/cm³

Supply programme

Wires, rods, sheets, strips, evaporation boats, crucibles, tubes and finished parts according to customer drawings

Properties

- High melting point (≈ 2,996 °C), very low vapor pressure (≈ 5×10-⁸ Pa @ 1,800 °C) - High density (≈ 16.6 g/cm³) - Excellent corrosion resistance (against molten metals & aqueous media) - Very good cold ductility, good machinability - TaW: combines corrosion resistance/formability (Ta) with hardness/heat resistance (W)

Applications

- Chemical industry: reactors, heat exchangers, pipelines - High temperature: furnace components, furnace boats, crucibles, sheets (e.g. PCD production) - Medical technology: implants, tubes - Electronics: capacitors - Superconductor technology

Do you need further information?

Specifications / standards

- ASTM B364 (Tantalum & Tantalum Alloys - Ingots/Ingots) - ASTM B365 (Tantalum & Tantalum Alloys - Rods, Wires) - ASTM B521 (Tantalum & tantalum alloys - tubes, welded/seamless) - ASTM B708 (tantalum & tantalum alloys - plates, sheets, strips) - ASTM F560 (pure tantalum - medical applications) - ASM7848D (TaW10 - rods)

Questions? We’re happy to help.

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