Specification : 
W                                  99.9%MIN.
Fe                                  0.002%MAX.
Mo                                 0.003%MAX.
OTHER IMPURITY EACH:  0.001%MAX. 
Size available: Dia 0.15 up to 6.0mm x coil (at random length).
Typical sizes :
Ø0.10mm x coil;
Ø 0.20 mm x coil;
Ø 0.30 mm x coil;
Ø 0.50 mm x coil;
Ø 0.70 mm x coil ;
Ø 0.90 mm x coil ;
Ø 1.0 mm x coil;
Ø 1.5 mm x coil;
Ø 2.0 mm x coil ;
Ø 2.0 mm x coil ;
Ø 3.0 mm x coil ;
Ø 5.0 mm x coil ;
Ø 6.0 mm x coil ;
Application : For producing heating elements used in vaccum metalizing or plating.
For producing heating elements and refractory parts in high temperature furnaces.
For producing electric light source parts and electric vaccum components.

Standard Specification ASTM B 365 -98 for Tantalum rod + Tantalum Alloy Rod + Tantalum Wire + Tantalum Alloy Wire.
This specification covers unalloyed and alloyed Tantalum rod + Tantalum Alloy Rod + Tantalum Wire + Tantalum Alloy Wire.
The materials covered by this specification are :
1. ASTM B 365 -98 UNS R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both.
2. ASTM B 365 -98 UNS R05400, unalloyed tantalum, powder-metallurgy consolidation.
3. ASTM B 365 -98 UNS R05255, tantalum alloy, 90% tantalum 10% tungsten, electron-beam furnace or vacuum-arc melt, or both.
4. ASTM B 365 -98 UNS R05252, tantalum alloy, 97.5% tantalum 2.5% tungsten, electron-beam furnace or vacuum-arc melt, or both.
5. ASTM B 365 -98 UNS R05240, tantalum alloy, 60% tantalum 40% columbium, electron-beam furnace or vacuum-arc melt, or both.