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Tantalum (Ta)

Tantalum (Ta) 

Tantalum is a refractory metal, falling between tungsten and molybdenum in terms of melting point (5425 F). Tantalum's corrosion resistance is excellent in a wide range of severe environments. The metal develops an oxide film on exposure, which acts as a barrier to further corrosion. The corrosion resistance of tantalum is often compared to that of glass.

 

Type Tantalum Tungsten Niobium

R05200 / R05400

Unalloyed    
R05252 97.5 % 2.5 % -
R05255 90 % 10 % -

R05240

60 %

- 40 %