Precision customization: Round, square, hex, rectangle and wire; dimensions to drawing; tight tolerance control; small-batch sampling available.
High-temperature & corrosion resistance: Stable in harsh chemicals and elevated temperatures; suitable for superconducting and chemical environments.
Structural reliability: High melting point and good formability support demanding aerospace and high-stress service.
Process control & QA: Forging, rolling, swaging with full corrosion, EC, mechanical and microstructure testing for low defect rates and high straightness.
Superconductor industry: Critical components for high-performance magnets and superconducting systems.
Chemical processing: Corrosion-resistant vessels, fittings and piping elements.
Aerospace & aviation: Engine parts, fasteners and structural components exposed to thermal cycling.
Corrosion testing
Eddy current testing
Mechanical tests (tensile, yield, elongation)
Microstructure examination
Packaging: Standard seaworthy export packing or custom protective solutions to secure rods during transit.
Shipping: Global courier or sea freight; lead times coordinated with project schedules.
LuminaTitanium delivers precision-engineered niobium rod/bar in accordance with ASTM B392. With controlled grades, shapes, sizes and finishes, plus excellent high-temperature and corrosion performance, our niobium bars are well suited for superconducting devices, chemical equipment and aerospace structures.
| Parameter | Details | Why It Works for You |
|---|---|---|
| Standard | ASTM B392 | Recognized specification for niobium rod/bar |
| Grades | R04200, R04210 | Stable properties for superconducting, chemical and aerospace uses |
| Shapes | Round, square, hex (A/F), rectangle, wire | Covers structural, precision and magnet applications |
| Dimension range | Customizable | Matches drawings; reduces secondary machining |
| Surface | Black, pickled, sand-blasted, polished | Balances corrosion resistance, cleanliness and aesthetics |
| Packing | Seaworthy or custom | Protects rods for export and long-distance transport |
| Third-party inspection | Acceptable | Additional assurance for critical projects |
| Element | R04200 | R04210 | R04251 (1% Zr) | R04261 (1% Zr) |
|---|---|---|---|---|
| C | 0.010 | 0.010 | 0.010 | 0.010 |
| O | 0.015 | 0.025 | 0.015 | 0.025 |
| N | 0.010 | 0.010 | 0.010 | 0.010 |
| H | 0.0015 | 0.0015 | 0.0015 | 0.0015 |
| Fe | 0.005 | 0.010 | 0.005 | 0.010 |
| Mo | 0.010 | 0.020 | 0.010 | 0.050 |
| Ta | 0.100 | 0.300 | 0.10 | 0.50 |
| Ni | 0.005 | 0.005 | 0.005 | 0.005 |
| Si | 0.005 | 0.005 | 0.005 | 0.005 |
| Ti | 0.020 | 0.030 | 0.020 | 0.030 |
| W | 0.030 | 0.050 | 0.030 | 0.050 |
| Zr | 0.020 | 0.020 | 0.8–1.2 | 0.8–1.2 |
| Nb | Remainder | Remainder | Remainder | Remainder |
| Grade (UNS) | Tensile Strength min. | Yield Strength min. | Elongation min. |
|---|---|---|---|
| R04200 / R04210 | 18000 psi (125 MPa) | 10500 psi (73 MPa) | 26% |
| R04251 | 28000 psi (195 MPa) | 18000 psi (125 MPa) | 20% |
| R04261 | 28000 psi (195 MPa) | 18000 psi (125 MPa) | 20% |
Standard & grade: ASTM B392; specify R04200 / R04210 (and R04251 / R04261 if applicable)
Shape & size: round/square/hex/rectangle; diameters, lengths, tolerances; straightness requirements
Surface finish: black, pickled, sand-blasted or polished
Testing & QA: corrosion, EC, mechanical, microstructure; third-party witnessing if needed
Documentation: MTC EN 10204 3.1; inspection reports; RoHS/REACH on request
Quantity & packaging: batch size; bundling/boxing; export packing requirements
End use: superconducting, chemical, aerospace, etc., to confirm optimal grade and finish
