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Niobium Bar

Product categories of Niobium Bar, we are specialized manufacturers from China, Niobium Bar, High Purity Niobium Bar suppliers/factory, wholesale high-quality products of Pure Niobium Round Bars R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!

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High purity Polished Nb1 Niobium Bar
- Brand: SYMT
- Packaging: wooden case
- Supply Ability: 10 Tons per Month
- Min. Order: 1 Kilogram
- Certificate: ISO9001
High purity Polished Nb1 Niobium Bar About us Our advantages 1 we have our own factory to produce different kinds of Niobium foil that you need 2 we have more than 10 years experience in producing rare metal especially in making Niobium products 3 we provide clients the best after sale service 4 we can give clients...

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Polished Pure Niobium Rod Price
- Brand: SYMT
- Packaging: wooden case
- Supply Ability: 10 Tons per Month
- Min. Order: 1 Kilogram
- Certificate: ISO9001
Polished Pure Niobium Rod Price Our Noibium products advantages 1 we have our own factory to produce different kinds of Niobium rod that you need 2 we have more than 10 years experience in producing rare metal especially in making Niobium products 3 we provide clients the best after sale service 4 we can give clients...

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99.95% Pure Niobium Bar Price
- Brand: SYMT
- Packaging: wooden case
- Supply Ability: 10 Tons per Month
- Min. Order: 1 Kilogram
- Certificate: ISO9001
99 95 Pure Niobium Bar Price About us Our advantages 1 we have our own factory to produce different kinds of Niobium foil that you need 2 we have more than 10 years experience in producing rare metal especially in making Niobium products 3 we provide clients the best after sale service 4 we can give clients the best...

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Stocked Nb1 Niobium Rod for Sale
- Brand: SYMT
- Packaging: wooden case
- Supply Ability: 10 Tons per Month
- Min. Order: 1 Kilogram
- Certificate: ISO9001
Stocked Nb1 Niobium Rod for Sale Our Noibium products advantages 1 we have our own factory to produce different kinds of Niobium rod that you need 2 we have more than 10 years experience in producing rare metal especially in making Niobium products 3 we provide clients the best after sale service 4 we can give clients...

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China Niobium Bar Suppliers

Niobium Metals, plate, bar, wire, tube, target
Purity 99.95% min.
Density 8.6 g/cc
SGS certificate

Niobium belongs to the group of refractory metals. Refractory metals are metals that have a higher melting point than platinum (1 772 °C). In refractory metals, the energy binding the individual atoms together is particularly high. Refractory metals have a high melting pointcoupled with a low vapor pressure, high modulus of elasticity and high thermal stability. Refractory metals are also characterized by a low coefficient of thermal expansion. Compared to other refractory metals, niobium has a relatively low density of only 8.6 g/cm3

Niobium is located in the same period as Molybdenum in the periodic table. Its density and melting point are therefore comparable to those of molybdenum. In the same way as Tantalum, niobium is prone to hydrogen embrittlement. The heat treatment of niobium therefore takes place in a high vacuum and not in a hydrogen atmosphere. Both niobium and tantalum also offer a high level of resistance against all acids and good formability.

At -263.95 °C, niobium has the highest transition temperature of all elements. Below this temperature, niobium is superconducting. And what is more, niobium boasts a very special range of properties:

Properties
Atomic number		41
Atomic mass		92.91
Melting point		2 468 °C / 2 741 K
Boiling point		4 900 °C / 5 173 K
Atomic volume		1.80 · 10-29 [m3]
Vapor pressure	at 1 800 °C	5 · 10-6 [Pa]
	at 2 200 °C	4 · 10-3 [Pa]
Density at 20 °C		8.55 [g/cm3]
Crystal structure		body-centered cubic
Lattice constant		329.4 · 10-12 [m]
Hardness at 20 °C	formed	110 - 180 [HV10]
	recrystallized	60 - 110 [HV10]
Modulus of elasticity at 20 °C		104 [GPa]
Poisson number		0.35
Coefficient of linear thermal expansion at 20 °C		7.1 · 10-6 [m/(m·K)]
Thermal conductivity at 20 °C		52 [W/(m·K)]
Specific heat at 20 °C		0.27 [J/(g·K)]
Electrical conductivity at 20 °C		7 · 10-6 [1/(Ω·m)]
Specific electrical resistance at 20 °C		0.14 [(Ω·mm2)/m]
Sound speed at 20 °C	Longitudinal wave	4 920 [m/s]
	Transverse wave	2 100 [m/s]
Electron work function		4.36 [eV]
Capture cross-section for thermal neutrons		1.15 · 10-28 [m2]
Recrystallization temperature (annealing time:1 hour)		850 - 1 300 [ °C]
Superconductivity (transition temperature)		< -263.95 °C / < 9.2 K

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