Nb47Ti Niobium Titanium Round Bar ASTM B884
- Ti content 46%–48% (nominal 47%) for optimal superconducting performance
- Excellent superconducting properties — the most widely used superconductor material
- High strength and toughness match — ideal for wire manufacturing
- Good ductility for processing into wires and complex shapes
- Critical material for MRI, particle accelerators, and ITER fusion projects
- Custom diameters available, including large-size bars (≥Ф140mm)
- Surface finishes: machined, polished, annealed
Description Of Nb47Ti Niobium Titanium Round Bar ASTM B884
Nb47Ti Niobium Titanium Round Bar is a binary niobium-titanium alloy bar manufactured to ASTM B884 standard. The alloy contains 46%–48% titanium (nominal 47%) with niobium as the balance, specifically designed for superconducting applications . Nb47Ti is the most widely used superconducting material, combining excellent superconducting properties with good strength and ductility.
ASTM B884 covers niobium-titanium alloy billets, bars, and rods at 46% to 48% titanium. This material is used in the manufacture of wire for superconducting applications . Nb47Ti alloy has a two-phase microstructure (β phase matrix with α-Ti precipitates) that provides effective flux pinning, enabling high critical current density in superconducting wires .
Nb47Ti alloy is primarily used for superconducting materials and as an intermediate alloy for titanium alloys. In superconducting applications, it is used for ITER project wires, MRI/NMR equipment superconducting magnets, and particle accelerator magnets . The material exhibits excellent process plasticity and can be drawn into fine superconducting wires.
Our Nb47Ti niobium titanium round bars are available in custom diameters, including large-size bars (≥Ф140mm). Typical room-temperature tensile strength is ≥350 MPa, yield strength ≥330 MPa, and elongation ≥20% . Surface finishes include machined, polished, and annealed.
Applications Of Nb47Ti Niobium Titanium Round Bar ASTM B884
Superconducting Magnets: Nb47Ti round bars are the primary material for manufacturing superconducting wires used in MRI/NMR magnets, particle accelerator magnets, and magnetic confinement fusion devices (ITER project) .
Medical Imaging: Nb47Ti superconductors are critical components in MRI (Magnetic Resonance Imaging) and NMR (Nuclear Magnetic Resonance) equipment.
Particle Physics: Used in superconducting magnets for particle accelerators at research facilities worldwide.
Titanium Alloy Intermediate: Used as an intermediate alloy for adding niobium to titanium alloys such as TA31, TC20, and TB18 .
Energy and Research: Used in superconducting energy storage (SMES), magnetic separation, and maglev train development .
Aerospace and Defense: High-strength Nb47Ti bars are used in specialized aerospace and defense applications.
Specifications Of Nb47Ti Niobium Titanium Round Bar ASTM B884
| Parameter | Specification |
|---|---|
| Material | Niobium-titanium alloy (Nb47Ti) |
| Standard | ASTM B884 |
| Titanium Content | 46% – 48% (nominal 47%) |
| Niobium | Balance |
| Density | ~6.5 g/cm³ |
| Melting Point | ~2450°C |
| Tensile Strength (RT) | ≥350 MPa |
| Yield Strength (RT) | ≥330 MPa |
| Elongation | ≥20% |
| Reduction of Area | ≥80% |
| Grain Size | ≥3 |
| Diameter Range | Customizable (including ≥Ф140mm) |
| Surface Finish | Machined, polished, annealed |
| Product Standard | ASTM B884 |
| Certification | ISO 9001 |