Available grades:

Pure grade (ASTM B394 - R04210)
Niobium-zirconium1% alloy (ASTM B394 - R04261)

Temper condition:
Annealed

Dimension: 
Inner diameter - 0.2 mm to 5 mm
Length - by request
Dimension for niobium welded tube upon request

Standard: ASTM B 394
Grade:   RO4200 (pure Niobium ),   RO4210 (Nb1%Zr)
Outer Diameter: 1.0-150mm
Wall thickness: 0.2- 10mm
Purity:  ≥99.9%  and ≥99.95%

Manhar Metal is the leading niobium products SUPPLIERS and provider in India. Besides domestic market,  Manhar Metal exports about 40 percent of its productivity overseas, including various of niobium wire, niobium rod, niobium plate, niobium, niobium tubes, and all kinds of niobium machining parts. The Niobium machining parts is the most competitive product of Manhar Metal. We can produce various niobium screw, nuts, elbows, flanges, valves and so on. The wire products has been exported to more than 40 countries and regions including United States, Canada, Germany, Brazil, Australia, Japan, Korea, France, Spain, Italy, India, Russia, Ukraine and so on. 
We have been committed to providing customers the best products, 
lowest prices and most prompt delivery.
We sincerely look forward to the long-term cooperation with you. 

Niobium is an associated metal of tantalum ,characterized in high strength ,high conductivity ,resistance  to corrosion by liquid base metals ,section with low neutron capture ,etc ,widely used for steel ,ceramics ,electronics ,nuclear energy industries and superconductor technology.
Special requirements to be agreed on by the supplier and buyer of negotiation . 
NB:99.95%min

Available grades :
Pure grade
Nb-Ti alloy
Nb-Zr alloy (Nb-Zr1%, Nb-Zr10%)
Temper condition :
Annealed
Surface :
As-rolled or machined to bright
Dimension :
Thickness: 0.1 mm to 30 mm
Width: 50 mm to 900 mm
Length: up to 2000 mm
Cut to size service available.
Specification :
ASTM B393
ASTM B884