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Niobium, formerly called columbium, melts at 2468° C (4474° F). It is a tough, ductile, silver-gray metal having a unique combination of physical and mechanical properties. Of the five major refractory metals, it has the lowest melting temperature, density (8.57 g/cm3), and elastic modulus at room temperature (103 GPa, or 14.9 x 106), while its coefficient of linear thermal expansion (7.3 m/m - K) is the highest. Niobium is also extremely stable in a wide variety of corrosive environments including most organic acids and mineral acids with the exception of hydrofluoric acid. Major applications are in capacitors, lighting and chemical processing.
Chemical Composition:
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1%Zr Niobium (Nb-1%Zr) wire, rod
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Zr
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0.8~1.2
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C
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0.02
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H
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0.004
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O
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0.04
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N
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0.03
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Al
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0.005
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Cr
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0.005
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Fe
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0.02
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Mn
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0.005
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Mo
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0.02
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Ni
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0.005
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Si
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0.005
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Ta
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0.1
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Ti
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0.005
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W
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0.02
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Typical size :
Diameter 1.00mm x coil;
Diameter 1.27mm x coil;
Diameter 1.50mm x coil;
Diameter 1.60mm x coil;
Diameter 2.56mm x coil;
Typical application: Used for high-voltage sodium lights etc., illumination material.
Packing: Spooled and sealed with plastic bags then put in strong carton of 20kg net each.
Trade name : NB-1Zr Niobium-Zirc Niobium One Zirc Niobium Zirconium Niobium - 1 Zirconium Niobium 1% Zirconium NB-1%Zr Niobium 1% Zirc
Standard Specification ASTM B 392 -03 for Niobium rod + Niobium Alloy Rod + Niobium Wire + Niobium Alloy Wire.
This specification covers Niobium rod + Niobium Alloy Rod + Niobium Wire + Niobium Alloy Wire of the following grades:
1. ASTM B 392 -03 UNS R04200 -Type 1, Reactor grade unalloyed niobium;
2. ASTM B 392 -03 UNS R04210 -Type 2, Commercial grade unalloyed niobium;
3. ASTM B 392 -03 UNS R04251 -Type 3, Reactor grade niobium alloy containing 1% zirconium;
4. ASTM B 392 -03 UNS R04261 -Type 4, Commercial grade niobium alloy containing 1% zirconium;
++++++++++++++++++++++++++++++++++
Standard Specification ASTM B 391 -03 for Niobium Ingots + Niobium Alloy Ingots.
This specification covers Niobium Ingots + Niobium Alloy Ingots of the following grades:
1. ASTM B 391 -03 UNS R04200 -Type 1, Reactor grade unalloyed niobium;
2. ASTM B 391 -03 UNS R04210 -Type 2, Commercial grade unalloyed niobium;
3. ASTM B 391 -03 UNS R04251 -Type 3, Reactor grade niobium alloy containing 1% zirconium;
4. ASTM B 391 -03 UNS R04261 -Type 4, Commercial grade niobium alloy containing 1% zirconium;
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