ASTM B393 Niobium Ring | Niobium Alloy Ring Manufacturer
- Manufactured to ASTM B393 standard for niobium and niobium alloy strip, sheet, and plate
- vailable in four grades: R04200-Type 1, R04210-Type 2, R04251-Type 3, R04261-Type 4
- High-purity niobium and niobium-zirconium alloys for demanding applications
- Excellent corrosion resistance in acids, alkalis, and harsh chemical environments
- High melting point of 2477°C for extreme high-temperature service
- Superior superconducting properties for particle accelerator and MRI applications
- Low neutron absorption cross-section for nuclear reactor components
- Customizable dimensions: ring diameter, width, thickness, and shape
- Surface finishes: machined, polished, annealed
Descriptions Of ASTM B393 Niobium Ring
ASTM B393 Niobium Ring is a high-performance annular component manufactured from niobium and niobium alloy strip, sheet, or plate to ASTM B393 standard. Niobium is a silver-grey refractory metal with a melting point of 2477°C, excellent corrosion resistance, and superior superconducting properties. These rings are essential components in some of the most demanding applications, including superconducting particle accelerators, nuclear reactors, and high-temperature assemblies.
The ASTM B393 standard covers five grades of wrought niobium and niobium alloy strip, sheet, and plate: R04200-Type 1 (reactor grade unalloyed niobium), R04210-Type 2 (commercial grade unalloyed niobium), R04251-Type 3 (reactor grade niobium alloy containing 1% zirconium), R04261-Type 4 (commercial grade niobium alloy containing 1% zirconium), and R04220-Type 5 (RRR grade pure niobium). These grades offer different combinations of purity, strength, and corrosion resistance to suit specific application requirements.
Niobium rings are widely used in superconducting radio frequency (SRF) cavities for particle accelerators, where niobium’s superconducting properties enable efficient acceleration of charged particles. They are also used in nuclear reactors, semiconductor manufacturing equipment, and high-temperature assemblies. Our niobium rings are available in custom dimensions including ring diameter, width, thickness, and shape, with surface finishes including machined, polished, and annealed.
Features Of ASTM B393 Niobium Ring
ASTM B393 Compliant: Manufactured to ASTM B393 standard for niobium and niobium alloy strip, sheet, and plate.
Multiple Grades Available: R04200-Type 1 (reactor grade unalloyed Nb), R04210-Type 2 (commercial grade unalloyed Nb), R04251-Type 3 (reactor grade Nb-1Zr), R04261-Type 4 (commercial grade Nb-1Zr).
High Melting Point: 2477°C, enabling use in extreme high-temperature environments.
Superior Superconducting Properties: Critical for superconducting accelerators and MRI applications.
Excellent Corrosion Resistance: Resists acids, alkalis, and harsh chemical environments.
Low Neutron Absorption: Suitable for nuclear reactor applications.
Good Formability: Can be machined, bent, and shaped into complex ring geometries.
Customizable Dimensions: Ring diameter, width, thickness, and shape per customer requirements.
Surface Finishes: Machined, polished, annealed.
ISO 9001 Certified: Full traceability and quality assurance.
Specifications Of ASTM B393 Niobium Ring