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Niobium tube

Pure high quality niobium and niobium alloy tubes/tubes made in China

Niobium pipe specification

1.Material: RO4200-1, Ro4210-2, Nb1,Nb2

2.Size: Dia:<120mm*length<6000mm

3.Standard: As per ASTM B394-99
4.Purity: >=99.9% or 99.95%

5.ISO9001: 2008 SGS CE

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Chemical composition:

Chemistry %
Designation	Chief component	Impurities maximum
	Nb	Fe	Si	Ni	W	Mo	Ti	Ta	O	C	H	N
Nb1	Remainder	0.004	0.003	0.002	0.004	0.004	0.002	0.07	0.015	0.004	0.0015	0.002
Nb2	Remainder	0.02	0.02	0.005	0.02	0.02	0.005	0.15	0.03	0.01	0.0015	0.01

Chemistry %

Designation

Chief component

Impurities maximum

Nb1

Remainder

0.004

0.003

0.002

0.004

0.002

0.07

0.015

0.004

0.0015

0.002

Nb2

Remainder

0.02

0.005

0.02

0.005

0.15

0.03

0.01

0.0015

0.01

Niobium and Niobium alloyed tubes and pipes

R04200 -- 1 TYPE -- Reactor class non-alloyed Niobium.

R04210 -- 2 TYPE -- Industrial class non-alloyed Niobium.

R04251 -- 3 TYPE -- Include 1% Zr reactor Niobium alloys.

R04261 -- 4 TYPE -- Include 1% Zr industrial Niobium alloyes.

UNS Designation R05400 -- non-alloyed Tantalum,powder metallurgy,concretion.

UNS Designation R05200 -- non-alloyed Tantalum,vacuum ARC melting.

UNS Designation R05252 -- Ta + 2.5% W alloys,vacuum ARC melting.

UNS Designation R05255 -- Ta + 10% W alloys,vacuum ARC melting.

UNS Designation R05240 -- Tantalum alloys, 60% Ta,40% Nb alloys,electron bombardment or vacuum ARC melting.or both

Characteristics: Niobium has a similar structure to Tantalum. It has a very high melting point of around 2470°C. It has excellent corrosive resistance and has good cold ductility. 
Processing:Sintering, Orging system controller, Straightening, Polished, Machine plus etc.

Specification of Nb and Nb Alloy Plate/Sheet
Standard	ASTM B393-2003 ASTM B394-98
Material	UNS R04200 Reactor grade unalloyed niobium UNS R04210 Commercial grade unalloyed niobium UNS R04251 Reactor grade Niobium-1% zirconium UNS R04261 Commercial grade u Niobium-1% zirconium Alloying niobium with 1% zirconium increases the strength of niobium, and decreases slightly its elongation. The increased strength is very advantageous especially at temperatures above 600 °C
Thickness	0.03-10mm
Width	30-800mm
Length	300-2000mm
Feature	High special strength , high melt point ,excellent corrosive resistance, Good thermal resistance.
Application	Sintering trays and boats, Special chemical applications, Superconductors, Medical components, Jet engine parts and is used in the lighting industry.

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