High purity niobium sheet - metal niobium price - Xinkang scientific research material manufacturer

Niobium sheet / Nb sheet $ 80.00

High purity Niobium sheet（Nb)3N5, The price is for reference only, please contact customer service for quotation.

element ： Nb

purity ： 3N5

shape ： Sheet

weight ： 1Kg

Package ： Vacuum packaging, carton, wooden box

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Product details

Market reference price: $80/ Kg, The price is for reference only, please contact customer service for quotation.

Product Name: Niobium sheet
CAS No.: 7440-3-1
EINECS No.: 231-113-5
Melting point: 2468 ℃
Boiling point: 4742 ℃
Density: 8.57 g / cm ³
Specifications: various specifications and sizes can be customized according to customer requirements

Physical and chemical properties:

Niobium is a gray white metal with melting point of 2468 ℃, boiling point of 4742 ℃ and density of 8.57g/cm3. Niobium is a gray metal with luster and paramagnetism. High purity niobium metal has high ductility, but it will harden with the increase of impurity content
niobium is stable in air at room temperature, and is not completely oxidized when it is red hot in oxygen. It can be directly combined with sulfur, nitrogen and carbon at high temperature to form alloys with titanium, zirconium, hafnium and tungsten. It does not interact with inorganic acids or bases, nor is it soluble in aqua regia, but it is soluble in hydrofluoric acid
niobium metal is extremely stable in air at room temperature and does not interact with air. Although it has a higher melting point (2468 ° C) in the elemental state, its density is lower than that of other refractory metals. Niobium can also resist various erosion and form a dielectric oxide layer
the electropositivity of niobium is lower than that of zirconium on its left. Its atomic size is almost the same as that of tantalum atom below it, which is caused by lanthanide shrinkage effect. This makes the chemical properties of niobium very similar to that of tantalum. Although its corrosion resistance is not as high as that of tantalum, it is cheaper and more common. Therefore, it is often used to replace tantalum in the case of low requirements, such as coating material in chemical plant chemical tank

Usage:

Niobium is a lustrous gray metal. High-purity niobium metal is more ductile, but hardens with increasing impurity content. Niobium has a very low capture cross section for thermal neutrons, so it is quite useful in the nuclear industry. Superconducting applications, superalloys, niobium-based alloys, medical applications, steel applications, electrical ceramics,
Others: Niobium (or doped with 1% zirconium) is a sealing material for high pressure sodium lamp arc tubes because the thermal expansion coefficient of niobium is very similar to that of sintered alumina arc lamp ceramic materials. This ceramic for sodium lamps resists chemical attack and does not react with the high temperature sodium liquid and gas inside the lamp. Niobium is also used in arc electrodes to weld certain stabilized stainless steels. In the cathodic protection system of some large water tanks, niobium is used as the anode material, and the anode is generally plated with a layer of platinum.

Molybdenum / Mo / 3N5

Elements	Actual	Units	Elements	Actual	Units	Elements	Actual	Units
Li		ppm	Zn		ppm	Pb	<10	ppm
B		ppm	Ga		ppm	Bi	<10	ppm
F		ppm	Ge		ppm	Y		ppm
Na		ppm	As		ppm	Th		ppm
Mg	<20	ppm	Se		ppm	Er		ppm
Al	<20	ppm	Zr		wt%	Ru		ppm
Si	<20	ppm	Nb		ppm	Rh		ppm
P		ppm	Mo	Matrix	wt%	Os		ppm
Cl		ppm	Pd		ppm	Cd	<5	ppm
K		ppm	Ag		ppm	In		ppm
Ca	<20	ppm	Sn	<10	ppm
Ti		ppm	Sb	<10	ppm
V		ppm	Ba		ppm
Cr		ppm	Hf		wt%
Mn		ppm	Ta		ppm	C	<10	ppm
Fe	<20	ppm	W	<100	ppm	S	<10	ppm
Co		ppm	Pt		ppm	O	22	ppm
Ni	<10	ppm	Au		ppm	N	<10	ppm
Cu		ppm	Hg		ppm	H		ppm