Tantalum-2.5% Tungsten (Ta-2.5W) is used in the aerospace industry for hot-gas valves and in the chemical industry for corrosion resistant heat exchangers, valves and liners.
CHEMICAL COMPOSITION ACCORDING TO ASTM B365 92 R05252 AS FOLLOWS:
|
Tantalum (Ta) |
Remainder |
|
Tungsten (W) |
2.00-3.50% |
|
Carbon (C) |
0.0100%max |
|
Oxygen (O) |
0.0150%max |
|
Nitrogen (N) |
0.0100%max |
|
Hydrogen (H) |
0.0015%max |
|
Niobium (Nb) |
0.5000%max |
|
Iron (Fe) |
0.0100%max |
|
Titanium (Ti) |
0.0100%max |