Ta-10w
Tantalum-10% Tungsten(Ta-10W) is used in the aerospace industry for hot-gas valves, rocket engine skirts and in the chemical industry for corrosion resistant valves and liners.
Chemical composition according to ASTM B365 92 R05255 as follows:
| Tantalum(Ta) | Remainder |
| Tungsten(W) | 9.00-11.00% |
| Carbon (C) | 0.0100%max |
| Oxygen (O) | 0.0150%max |
| Nitrogen (N) | 0.0100%max |
| Hydrogen(H) | 0.0020%max |
| Niobium (Nb) | 0.1000%max |
| Iron (Fe) | 0.0100%max |
| Titanium(Ti) | 0.0100%max |
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