PLANSEE produces pure tantalum as an unalloyed metal with a guaranteed purity of 99.8 %. It has a melting point of 2996 °C and is ductile up to approx. -200 °C despite of its cubic body-centred cubic lattice.
Tantalum can be machined easily for a cubic body-centred metal and shows already at room temperatures elongation > 20 % at tensile strength > 200 N/mm2 in recrystallized condition. For applications at temperatures above 300 °C it has to be noticed that tantalum becomes brittle in contact with oxygen or hydrogen. For nitrogen and hydrocarbons the maximum application temperature is 700 °C.
Advantages of pure Ta:
- excellent corrosion resistance
- high temperature strength
- easy to machine
- good biocompatibility
Typical areas of application:
- heat exchangers for the chemical apparatus engineering
- components for the high temperature furnace construction
- manufacture of capacitors in the electronics industry
- boats and coils for resistive evaporation
- string coverings of musical instruments
- medical technology
