Niobium Tubing and Piping (Seamless and Welded Tube)
Princeton Powder is a leading manufacturer of high purity Niobium Tube and Pipe, offering pure Seamless Niobium Tubes, Welded Niobium Tubes, niobium-titanium (Nb-Ti) or niobium-zirconium (Nb-Zr) Tubes that meet ASTM B392 standards. Niobium tube are manufactured via extrusion, cold drawing, or welding. It is for sale at a competitive price.
Material | Niobium Tube, Nb |
CAS Number | 7440-03-1 |
Standard | ASTM B392 |
Color/Appearance | Gray, Metallic |
| Density | 8.57 g/cm3 |
Melting Point | 2468 ℃ |
Diameter | Customized |
Surface Treatment | Pickling or Polishing |
Description of Niobium Tube and Pipe (Extrusion, Cold Drawing, and Welding Method)
Niobium, with the atomic symbol Nb and atomic number 41, is a ductile, silvery metal often alloyed to improve durability and resistance in various applications. Niobium tubing and piping are known for their excellent chemical resistance, high melting point, superconducting properties, and biocompatibility.
Chemical Compositions of Niobium Tube
Material
| Main elements(%)
| Impurities (Maximum %)
| ||||||||||
Nb
| Fe
| Si
| Ni
| W
| Mo
| Ti
| Ta
| O
| C
| H
| N
| |
RO4200
| Remainder
| 0.004
| 0.004
| 0.002
| 0.005
| 0.005
| 0.002
| 0.07
| 0.015
| 0.0040
| 0.0015
| 0.003
|
RO4210
| Remainder
| 0.01
| 0.01
| 0.005
| 0.02
| 0.01
| 0.004
| 0.10
| 0.02
| 0.01
| 0.0015
| 0.01 |
Physical Properties of Niobium Tube
Grade | Tensile strength psi(MPa), ≥ | Yield strength δ0.2, psi (MPa),≥ | Elongation in 1″/2″ gage length, %, ≥ | |
>=0.010 | <0.010 | |||
RO4200, RO4210 | 18000 (125) | 12000 (85) | 25 | 20 |
Application
- Nuclear Reactors – Fuel cladding in reactors due to radiation resistance.
- Superconductors – SRF cavities in particle accelerators.
- Aerospace – Heat exchangers in rocket engines.
- Chemical Processing – Corrosion-resistant tubing in acid systems.
- Medical Devices – Stents and pacemaker casings due to biocompatibility.
- Electronics – Capacitors and energy storage components
How to select Niobium Tubing and Piping
Niobium tubing is selected for applications in scientific, medical, and industrial fields. Below are the key factors that you should consider when you choose a suitable Niobium Tube/Pipe
Diameter and Wall Thickness
- Specified based on application requirements, such as high-pressure or high-vacuum environments
Purity and Alloying
- Purity (99.9%+ for high-performance applications) or specific alloying elements for enhanced properties, like superconductivity or corrosion resistance
Surface Finish
- Smooth finishes are preferred in medical and superconducting applications to minimize resistance and interaction with other materials
Cost and Availability
- Seamless tubes are generally more costly but preferred for critical applications, while welded tubes may be suitable for standard or budget-constrained uses