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Niobium Tube

Niobium Tube

Niobium tube has High melting point,Melting point: 2468 °C,Boiling point: 4742°C,Low vapor pressure,Good cold processability,Excellent chemical stability,Good resistance to corrosion and High dielectric constant,in surface oxide film.

Product details

Baoji Refractory Metal Developer Co.,Ltd is one of the leading China niobium tube manufacturers and suppliers, and as a professional company we have productive factory, welcome to wholesale niobium tube, niobium pipe products from us.

² Chemical Composition:

       Chemistry         %

Grade

Nb

Impurities  max

Zr

Ti

C

N

O

H

Ta

Fe

Si

W

Ni

Mo

Cr

Nb1

Remainder

0.02

0.002

0.01

0.015

0.015

0.001

0.10

0.005

0.005

0.03

0.005

0.010

0.002

Nb2

Remainder

0.02

0.005

0.02

0.05

0.025

0.005

0.25

0.03

0.02

0.05

0.01

0.050

0.01

 

² SpecificationΦ2mm~Φ100mm×0.2~5.0mm×L<1300

 

² Tolerance

Outside diameter,

inch (mm)

OD tolerance,

inch(mm), +/-

ID tolerance,

inch(mm), +/-

Permissible variation in wall thickness,

%, +/-

0.187~0.625(4.7-15.9)

 0.004 (0.010)

 0.004 (0.010)

10

0.625~1.000(15.9-25.4)

 0.005 (0.13)

 0.005 (0.13)

10

1.000~2.000(25.4-50.8)

 0.0075 (0.19)

 0.0075 (0.19)

10

2.000~3.000(50.8-76.2)

 0.010(0.25)

 0.010(0.25)

10

3.000~4.000(76.2-101.6)

 0.0125 (0.32)

 0.0125 (0.32)

10

Note:Special demands on tolerance available.

 

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