Pure Niobium Wire (Spool and Coil Wire)
Princeton Powder is a leading US supplier of high purity niobium wire (Nb wire) manufactured to strict ASTM B392 standards. We offer custom diameter niobium round and flat wire, as well as niobium spool and coil wire with pickling or polishing surface treatment, available in premium RO4200 and RO4210 grades at competitive prices. Our niobium wire is engineered for superior corrosion resistance, an ultra-high melting point (2468 ℃) and excellent superconducting properties, making it the ideal material for high-demand applications in superconducting magnets, aerospace, electronics, medical implants and hypoallergenic jewelry across the US and global markets.
Material | Niobium Wire, 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 Wire
Niobium wire, made from the chemical element niobium (Nb), is valued for its high melting point, corrosion resistance, and excellent superconducting properties. Typically produced via extrusion or drawing processes, niobium wire is refined to precise diameters to meet application requirements. It can be wound into coils for superconducting magnets or alloyed with other metals to improve mechanical and conductive properties, ensuring performance in high-demand settings like scientific research and aerospace.
Chemical Compositions of Niobium Wire
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 Wire
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
- Superconducting Magnets – High-purity niobium wire provides stable performance in MRI machines, particle accelerators and scientific research facilities.
- Aerospace Components – Withstands extreme high temperatures and harsh environments in aerospace manufacturing.
- Medical Implants & Devices – Biocompatible and hypoallergenic, suitable for medical implants and precision instruments.
- Electronics & Semiconductors – Ideal for high-performance electronic components requiring superior thermal and electrical properties.
- Specialized Jewelry – Biocompatible quality for hypoallergenic jewelry making.