Tantal – Plates, sheets and foils
Tantalum and tantalum alloys
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Pure tantalum (R05200)
- Excellent workability
- High corrosion resistance
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TaW2.5 (R05252)
- Slightly higher mechanical strength than pure tantalum, but still good to machine.
- Better chemical resistance than pure tantalum in some environments.
- Working range up to 1600°C.
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TaW10 (R05255)
- Very high strengths, especially at high temperatures.
- Working range up to 2000°C
- Machining is much more difficult compared to the alloys mentioned above.
- Corrosion resistance is not as good as that of pure tantalum.
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Ta60Nb40 (R05240)
- Corrosion resistance similar to pure tantalum.
- Slightly more difficult to machine.
- In unmachined condition, some mechanical properties are better than these of pure tantalum.
Purity
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Ta 99.95%
The guaranteed maximum impurities of our molybdenum sheets are determined by ASTM B708
Impurities Guaranteed max values / % typical max values / % Fe 0.01 0.0001 Ni 0.01 0.0001 Si 0.005 0.0001 Mo 0.02 0.0001 C 0.01 0.004 O 0.015 0.008 N 0.01 0.002 H 0.0015 0.001 W 0.05 0.005 Nb 0.1 0.01 Ti 0.010 0.0005
Produktion and Heat treatment
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Rolling
Tantalum sheets are usually cold rolled to minimise oxidation.
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Annealing
Annealing removes material tensions which occur during the production process, but causes a slight reduction in mechanical strength. These annealed sheets are much easier to machine.
Our tantalum sheets are normally annealed. If you require non-annealed material, please let us know.
Typical Dimensions
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Thickness / mm Whidth / mm Length / mm 0.1 50 - 250 50 - 500 0.2 - 0.5 50 - 300 50 - 1000 > 0.5 50 - 500 50 - 1000 Unlisted dimensions on request.