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1.pure niobium sheet and plate

2.ASTM B393-98 

3.purity:99.95% 

4.technics: hot rolling

5.Size:Thk:0.1~10mm,W:1200mm(max),L:1500mm(max)

Chemicial composition       %

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

6.Mechanical requirements (annealed condition)

 Grade

Tensile strength  δb

psi (MPa), ≥  

Yield strength

δ0.2, psi (MPa),≥

Elongation in 1"/2"

gage length, %, ≥

RO4200-1

RO4210-2

18000 (125)

12000 (85)

25

7.Property:

Niobium has a similar structure to Tantalum and is produced in a similar method. It too has a very high melting point of around 2470°C. It has excellent corrosive resistance and has good cold ductility. It is however half as dense as Tantalum.

8.Applications; sintering trays and boats, special chemical applications, superconductors, medical components, jet engine parts and is used in the lighting industry