Grade: RO4200-1, RO4210-2

Niobium Tube Applications

Due to niobium’s high melting point, corrosion resistance, cold processing and good performance characteristics, niobium wire is widely used in chemical, electronic, aviation and aerospace fields.

Niobium Tube Specifications

Diameter, Inch (mm)	Tolerance, +/-Inch (mm)
0.010~0.020  (0.254~0.508)	0.0005 (0.013)
0.020~0.030  (0.508~0.762)	0.00075 (0.019)
0.030~0.060  (0.762~1.524)	0.001 (0.025)
0.060~0.090  (1.524~2.286)	0.0015 ( 0.038)
0.090~0.125  (2.286~3.175)	0.002 (0.051)

Chemical Composition of Niobium Tube

Grade	Major Components	Maximum Impurities (ppm)
	Nb	Ta	Si	Ni	W	Mo	Ti	Fe	O	C	H	N
Nb1	Balance	<700	50	50	50	30	20	50	150	40	15	30
Nb2	Balance	<1000	80	40	100	100	40	80	180	60	15	50

Niobium Tube Properties

Grade	Tensile Strength　 δbpsi (MPa) ≥	Yield Strength　　δ0.2, psi (MPa) ≥	Elongation in 1″/2″ Gage Length, ％, ≥
			>=0.010	<0.010
RO4200-1	18000 (125)	12000 (85)	25	20
RO4210-2