Niobium Products | Refractory Metal
Niobium Tube
Seamless niobium tube for superconducting, nuclear, chemical processing, and research applications. Manufactured through extrusion and cold drawing with outer diameters from 1mm to 100mm and wall thicknesses from 0.2mm to 10mm. Our niobium tubes offer excellent corrosion resistance, superconducting transition temperature of 9.3K, and low thermal neutron absorption. Essential for superconducting RF cavities, nuclear fuel cladding, chemical heat exchangers, and vacuum furnace components.
About Niobium Tube
Our seamless niobium tubes are precision-manufactured for the most demanding applications in superconducting technology, nuclear engineering, and chemical processing, with rigorous quality control at every production stage.
Features
- Seamless niobium tube
- OD: 1mm - 100mm
- Wall: 0.2mm - 10mm
- Superconducting at 9.3K
- Excellent corrosion resistance
- Low neutron absorption
- ASTM B394 compliant
- High-purity material
- Custom dimensions available
- Full quality documentation
Specifications
| Material | Niobium (Nb), UNS R04200 |
|---|---|
| Purity | ≥99.9% |
| OD Range | 1mm - 100mm |
| Wall Thickness | 0.2mm - 10mm |
| Standard | ASTM B394 |
| Tc (Superconducting) | 9.3K |
| Density | 8.57 g/cm³ |
| Surface Finish | Seamless, cold drawn, annealed |
| Testing | Hydrostatic, UT, eddy current |
| Thermal Conductivity | 53.7 W/(m·K) |
Applications of Niobium Tube
Niobium Tube is widely used across multiple industries including chemical processing, aerospace, electronics, medical, nuclear, and semiconductor manufacturing. The exceptional properties of niobium tube make it indispensable for applications requiring corrosion resistance, high-temperature stability, and material purity. Our niobium tube products serve leading companies worldwide in these demanding industries, delivering reliable performance and long service life in the most challenging environments.
Frequently Asked Questions about Niobium Tube
Q: What is special about niobium tubes for superconducting applications?
A: Niobium has the highest superconducting critical temperature (Tc = 9.3K) of any pure element, making it ideal for superconducting RF cavities in particle accelerators and other cryogenic applications.
Q: Are your niobium tubes seamless?
A: Yes, all our niobium tubes are seamless, manufactured through extrusion and cold drawing for superior integrity and consistent properties.
Q: What surface finish can you achieve?
A: We provide seamless cold-drawn finish, electropolished finish (for superconducting cavities), and chemical polished finish. Electropolished surfaces achieve Ra < 0.05μm.
Q: Can niobium tubes be used in nuclear reactors?
A: Yes, niobium's low thermal neutron absorption cross-section (1.15 barns) makes it suitable for nuclear fuel cladding and structural components in research and power reactors.
