Minerals and Metallurgy polished niobium bar

Specifications

1.Density:8.57g/cm3
2.Standard:GB/T 14842
3.Quality certification:ISO9002

1. Grade: Nb1,Nb2

2. Purity :> =99.95% 

3. Characteristic: 

Melting Point: 2468°C

Boiling Point :4742°C

Density: 8.57g/cm3 

High quality, workability

4. Certificate: ISO9002

5. Product Feature: High melting point, High-density, high temperature oxidation resistance, long service life, resistance to corrosion..

6. Table 1. Mechanical requirements (annealed condition)

Grade	Tensile strength δbpsi (MPa), ≥	Yield strength δ0.2, psi (MPa),≥	Elongation in 1"/2" gage length, %, ≥
RO4200-1 RO4210-2	18000 (125)	10500 (73)	25
Special requirements to be agreed on by the supplier and buyer of negotiations

 

Table.2 Chemical composition:

Chemistry                                                                %
Designation	Chief component		Impurities    maxmium
	Nb	Fe	Si			Ni	W	Mo	Ti	Ta	O	C	H	N
Nb1	Remainder	0.004	0.003			0.002	0.004	0.004	0.002	0.07	0.015	0.004	0.0015	0.002
Nb2	Remainder	0.02	0.02			0.005	0.02	0.02	0.005	0.15	0.03	0.01	0.0015	0.01

7.Application:widely used for steel, ceramics, electronics, nuclear energy   industries and superconductor technology.