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Nb
Niobium
Atomic no.:
41
Atom. weight: 92.90638
Density: 8.58
Class:
refractory metal
Melting point: 2468°C
Boiling point: 4928°C
Colour: Array
   
Discoverer: C. Hatchett
Place: London, England
Year: 1801

Discovered in 1801 by C. Hatchett in London, England. Niobium is a silver colored metal which is generally found in conjunction with tantalum, the two elements being separated by fractional crystallization of their respective fluoro-complexes. It has an abundance of 20 ppm in the earth's crust. As a pure metal, is very reactive and forms an extremely stable oxide when exposed to air which enhances its corrosion resistance. Niobium will react with a variety of non-metals at elevated temperatures. Niobium and its alloys have high melting points and are, therefore, used in high temperature engineering products (for use at temperatures in excess of 1200C). It is also used as an alloying agent for certain steels where it greatly improves the strength of the resulting material. Niobium also finds applications in atomic reactors due to its corrosion resistance and, when combined with either tin (Nb3Sn) or zirconium, it has a high degree of superconductivity.

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 Niobium tube - Ø14 mm - 145mm length - 99,95% purity  Art. Nr. 001533  
Niobium tube - Ø14 mm - 145mm length - 99,95% purity
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Niobium tube tempered - Ø 14 mm - 145mm length - 99,95% purity

Length ~ 145 mm - Outer diameter ~14mm - Inner diameter ~ 4mm - weight ~ 124g

For lab use

Unique piece.

Amount: 1 St. / 1 pc.
Purity : 99,95%
Packing: PE-bag
201.00
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Availability: 1 in stock

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 Niobium tube Ø 6 mm diameter - 150mm length - 99.95% purity  Art. Nr. 003126  
Niobium tube Ø 6 mm diameter - 150mm length - 99.95% purity
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High purity Niobium tube, annealed

Length  150 mm - Outer diameter 6mm - wall thickness 0.6mm. Produced by Heraeus

For lab use.

Lead time: ~ 4 weeks

Amount: 1 Stk/ 1 pc.
Purity : 99,99%
Packing: PE-bag

- tax free

***Lead time: ~ 4 weeks ***

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