Niobium Products | Refractory Metal
Niobium Rod
High-purity niobium rod manufactured through vacuum arc melting and precision forging. Available in diameters from 1mm to 200mm with 99.9%+ purity. Our niobium rods feature excellent corrosion resistance, superconducting properties, and superior formability. Widely used in superconducting magnets, particle accelerators, nuclear reactors, chemical processing, jewelry, and optical lens coatings. All niobium rods comply with ASTM B392 with full material certification and traceability.
About Niobium Rod
Our niobium rod products are manufactured from high-purity niobium ingots through controlled forging and finishing processes. Each rod is thoroughly tested for chemical composition, mechanical properties, and dimensional accuracy to meet the demanding requirements of superconducting, nuclear, and chemical processing applications.
Features
- 99.9%+ purity niobium
- Diameter range: 1mm - 200mm
- Excellent corrosion resistance
- Superconducting properties
- Low thermal neutron absorption
- ASTM B392 compliant
- Good formability and weldability
- Non-toxic and biocompatible
- Custom lengths available
- Full material certification
Specifications
| Material | Niobium (Nb), UNS R04200/R04210 |
|---|---|
| Purity | ≥99.9% |
| Melting Point | 2477°C (4491°F) |
| Density | 8.57 g/cm³ |
| Diameter Range | 1mm - 200mm |
| Standard | ASTM B392 |
| Tensile Strength | ≥125 MPa (annealed) |
| Elongation | ≥25% |
| Thermal Neutron Cross-section | 1.15 barns |
| Surface Finish | Ground, polished, as-forged |
Applications of Niobium Rod
Niobium Rod is widely used across multiple industries including chemical processing, aerospace, electronics, medical, nuclear, and semiconductor manufacturing. The exceptional properties of niobium rod make it indispensable for applications requiring corrosion resistance, high-temperature stability, and material purity. Our niobium rod 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 Rod
Q: What is niobium used for?
A: Niobium is used in superconducting magnets (MRI, particle accelerators), nuclear reactors (cladding), chemical processing (heat exchangers), aerospace (jet engine alloys), jewelry (anodized colors), and optical coatings.
Q: What purity levels of niobium rod do you offer?
A: We offer niobium rod in 99.9% (R04210) and 99.95%+ (R04200) purity grades. R04200 is electron beam refined for highest purity applications.
Q: Is niobium radioactive?
A: Natural niobium (Nb-93) is stable and non-radioactive. However, niobium has a low thermal neutron absorption cross-section, making it suitable for nuclear reactor applications.
Q: Can niobium be anodized for jewelry?
A: Yes, niobium can be anodized to produce a wide range of vibrant colors without dyes or coatings. This makes it popular for hypoallergenic jewelry, especially wedding rings and earrings.
Q: What standards do your niobium products comply with?
A: Our niobium products comply with ASTM B392 (niobium rod, bar, and wire) and ASTM B655 (niobium sheet, strip, and plate). Full material test reports are provided.
