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Niobium tube

99.95purityniobiumheatexchangertubeASTMB393RO4200-1

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Product Descr1ption

item	value
Place of Origin	China
province	shaanxi
Brand Name	ZHX
Application	heat exchange tube、superconductor、etc.
Shape	round, rectangular, square, and oval
Chemical Composition	Nb
Product name	niobium tubes
Size	OD: 1.0-150mm, WT: 0.1-5.0mm, Length: 10mm-8000mm
Density	8.57g/cm3
Standard	ASTM B394
Status	Hard, Semi-hard, Mild
Grade	R04200, R04210

Product Name	niobium 1% zirconium alloy pipe
Material	Pure niobium
Grade	RO4200.RO4210,R04251,R04261
Standard	ASTM B394
MOQ	1KG
Surface	Polished
Characteristic	Melting point : 2468℃ / Boiling point : 4744℃
Density	8.6 g/cm3
Product Features	Excellent Corrosion Resistance , Good resistance to effect of heat ,Nonmagnetic and Non-toxic

TABLE 1. Chemical Requirements:

Content, Max, Weight %
Element	Grand: R04200	Grand:R04210	Grand:R04251	Grand:R04261
Element	Unalloyed Niobium	Unalloyed Niobium	(Reactor grade niobium-1% Zirconium)	(Commercial grade niobium-1% Zirconium)
C	0.01	0.01	0.01	0.01
O	0.015	0.025	0.015	0.025
N	0.01	0.01	0.01	0.01
H	0.0015	0.0015	0.0015	0.0015
Fe	0.005	0.01	0.005	0.01
Mo	0.01	0.02	0.01	0.05
Ta	0.1	0.3	0.1	0.5
Ni	0.005	0.005	0.005	0.005
Si	0.005	0.005	0.005	0.005
Ti	0.02	0.03	0.02	0.03
W	0.03	0.05	0.03	0.05
Zr	0.02	0.02	0.8~1.2	0.8~1.2
Nb	Remainder	Remainder	Remainder	Remainder

TABLE 2.Mechanical Requirements:

Grade(UNS)	Annealed
Grade(UNS)	Tensile strength min, psi (MPa)	Yield strength min,psi (MPa)(2%)	Elongation min, % (1 inch gage length)
R04200, R04210	18000 (125)	10500 (73)	15~20
R04251, R04261	28000 (195)	18000 (125)	15~20
R04220(RRR grade)	14000 (95)	7200 (50)	30

Niobium Tube

Material: Pure niobium
UNS No.: R04200, R04210
Size: OD: 1.0-150mm, WT: 0.1-5.0mm, Length: 10mm-8000mm 
Standard: ASTM B394, ASTM B393
Purity: ≥99.95%, 99.995%
Status: Hard, Semi-hard, Mild

Descr1ption

We produces niobium tubes by electron beam melting technology, including seamless niobium tube and welding niobium tube. For the manufacture process of seamless niobium tube: 
First, melt the not forging niobium bar into niobium ingot by vacuum electron beam melting technology. There are two ways of smelting, single smelting and multiple smelting. Usually we smelt two times, or it can be more than two times depending on the product specific requirements. Second, forging and axial breakdown niobium ingot and then make it into niobium tube bloom by extrusion process manufacturing, then take it for annealing treatment and cleaning. After several times of rolling and annealing finally get the high quality niobium tube. The performance of this kind of technology is uniform, mainly used to produce small specification pipe and capillary materials, applicable to the production of various specifications of products.

Niobium tube welding is selects high quality, appropriate size of niobium sheet roll, welding, and then the joint treatment on welds, finally the whole round handle, make suitable size of niobium tube.This process of niobium tube wall thickness, the inner surface of good quality and high production efficiency, cost is lower, the most important thing is that can produce large diameter of niobium tube.

99.95% purity niobium heat exchanger tube ASTM B393 RO4200-1 RO4210-2 high quality seamless niobium tube/pipe

Common Specifications

 * ASTM B394 R04200
   » Reactor Grade Pure Niobium
 * ASTM B394 R04210
   » Commercial Grade Pure Niobium
 * ASTM B394 R04251
   » Reactor Grade Nb 1% Zirconium
 * ASTM B394 R04261
   » Commercial Grade Nb 1% Zirconium

Application
Used for the heat exchange tube、superconducting、steel 、aviation、nuclear industry.
The protect tube of thermometer in petrochemical industry. The electronics industry.

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