China Cheap price Iron Niobium - High Quality Superconductor Niobium Seamless Tube Price Per Kg – HSG Metal
China Cheap price Iron Niobium - High Quality Superconductor Niobium Seamless Tube Price Per Kg – HSG Metal Detail:
Product Parameters
Product Name | Polished Pure niobium Seamless Tube for Piercing Jewelry kg |
Materials | Pure Niobium and Niobium Alloy |
Purity | Pure niobium 99.95%min. |
Grade | R04200, R04210, Nb1Zr (R04251 R04261), Nb10Zr, Nb-50Ti etc. |
Shape | Tube/pipe, round, square, block, cube, ingot etc. customized |
Standard | ASTM B394 |
Dimensions | Accept customized |
Application | Electronic industry, steel industry, chemical industry, optics, gemstone manufacturing, superconducting technology, aerospace technology and other fileds |
Niobium Alloy Tube/Pipe Grade, Standard and Application |
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Products | Grade | Standard | Application |
Nb | R04210 Type | ASTM B394 | Electronic industry, Superconductivity |
Nb1Zr | R04261 Type | ASTM B394 | Electronic industry, Superconductivity, Sputtering target |
Chemical Composition
Niobium and Niobium Alloys Tube/Pipe Chemical Composition |
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Element | Type1 (Reactor Grade Unalloyed Nb) R04200 | Type2 (Commercial Grade Unalloyed Nb) R04210 | Type3 (Reactor Grade Nb-1%Zr) R04251 | Type4 (Commercial Grade Nb-1%Zr) R04261 |
Max Weight % (Except Where Otherwise Specified) |
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C |
0.01 |
0.01 |
0.01 |
0.01 |
N |
0.01 |
0.01 |
0.01 |
0.01 |
O |
0.015 |
0.025 |
0.015 |
0.025 |
H |
0.0015 |
0.0015 |
0.0015 |
0.0015 |
Zr |
0.02 |
0.02 |
0.8-1.2 |
0.8-1.2 |
Ta |
0.1 |
0.3 |
0.1 |
0.5 |
Fe |
0.005 |
0.01 |
0.005 |
0.01 |
Si |
0.005 |
0.005 |
0.005 |
0.005 |
W |
0.03 |
0.05 |
0.03 |
0.05 |
Ni |
0.005 |
0.005 |
0.005 |
0.005 |
Mo |
0.010 |
0.020 |
0.010 |
0.050 |
Hf |
0.02 |
0.02 |
0.02 |
0.02 |
Ti |
0.02 |
0.03 |
0.02 |
0.03 |
Dimension Tolerance
Niobium and Niobium Alloys Tube Dimension and Tolerance |
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Outer Diameter (D)/in (mm) |
Outer Diameter Tolerance/in (mm) |
Inner Diameter Tolerance/in (mm) |
Wall Thickness Tolerance/% |
0.187 < D < 0.625 (4.7 < D < 15.9) |
± 0.004 (0.10) |
± 0.004 (0.10) |
10 |
0.625 < D < 1.000 (15.9 < D < 25.4) |
± 0.005 (0.13) |
± 0.005 (0.13) |
10 |
1.000 < D < 2.000(25.4 < D < 50.8) |
± 0.0075 (0.19) |
± 0.0075 (0.19) |
10 |
2.000 < D < 3.000(50.8 < D < 76.2) |
± 0.010 (0.25) |
± 0.010 (0.25) |
10 |
3.000 < D < 4.000(76.2 < D < 101.6) |
± 0.0125 (0.32) |
± 0.0125 (0.32) |
10 |
The tolerance can be adjusted based on customer’s request. |
Niobium Tube / Niobium Pipe Production Technology
The technological process for niobium tube extrusion production: preparation, power frequency induction heating (600 + 10 Dc), glass powder lubrication, secondary power frequency induction heating (1150 + 10 Dc), reaming (reduction of area is less than 20.0%), third power frequency induction heating (1200 + 10 Dc), small deformation, extrusion(extrusion ratio is not more than 10, and reduction of area is less than 90%) , air cooling, and finally finished the hot extrusion process of niobium tube.
The niobium seamless tube produced by this method ensures sufficient thermal process plasticity. The disadvantage of niobium fluidity is avoided by means of small deformation extrusion. Performance and dimensions meet user requirements.
Application
Niobium tube / pipe is used in industrial, electric light source, heating and heat shield electric vacuum equipment. High purity niobium tube has higher requirements for purity and uniformity, it can be used as the cavity material of the superconducting linear collider. The biggest demand for niobium tube and pipe is for steel enterprises, and the materials are mainly used in acid washing and immersion tank, jet pump and its system pipe fittings.
Product detail pictures:

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