Fortu Tech is an ISO Certified Corporation located in China and specializes in manufacturing Pure Niobium Ingot. We have more than 20 years of production experience. Our products are Conflict Free material.
Fortu Tech can customize the Pure Niobium Ingot according to your demand. Welcome to contact us if you have any questions or requirements.The Cas No. of Nb ingot is 7440-03-1.
Niobium Ingots has excellent corrosion resistance. The chemical properties of niobium billets are also very stable. The melting point of the niobium billets is as high as 2468 ℃.
Niobium ingots can be produced into niobium pellets, niobium tubes, niobium plates, niobium rods, niobium wires, niobium foils, niobium processing pieces, etc.
| ASTM B391 R04200 Chemical Requirements Niobium Ingot | ||||||||||||||||||
| Element % | C | N | O | H | Zr | Ta | Fe | Si | W | Ni | Mo | Hf | Ti | B | Al | Be | Cr | Co |
| Content Maximum % | 0.01 | 0.01 | 0.015 | 0.0015 | 0.02 | 0.1 | 0.005 | 0.005 | 0.03 | 0.005 | 0.01 | 0.02 | 0.02 | 2 ppm | 0.002 | 0.005 | 0.002 | 0.002 |
| ASTM B391 R04210 Chemical Requirements Niobium Ingot | ||||||||||||||
| Element % | C | N | O | H | Zr | Ta | Fe | Si | W | Ni | Mo | Hf | Ti | Al |
| Content Maximum % | 0.01 | 0.01 | 0.025 | 0.0015 | 0.02 | 0.3 | 0.01 | 0.005 | 0.05 | 0.005 | 0.02 | 0.02 | 0.03 | 0.005 |
| The specification of ASTM B391 | |
| ASTM B 391 UNS R04200 Type 1 | Reactor grade unalloyed niobium ingot |
| ASTM B 391 UNS R04210 Type 2 | Commercial grade unalloyed niobium ingot |
| ASTM B 391 UNS R04251 Type 3 | Reactor grade niobium alloy containing 1 % zirconium, Nb1Zr ingot |
| ASTM B 391 UNS R04261 Type 4 | Commercial grade niobium alloy containing 1 % zirconium, Nb1Zr ingot |
| ASTM B 391 UNS R04220 Type 5 | RRR grade pure niobium, RRR Nb ingot |
If you have inquiry or want to discuss your design with us, please write email to us.
We will reply your email within 24 hours.
| Cas No. of Nb | 7440-3-1 |
| EINECS No.of Nb | 231-113-5 |
| Element class of Nb | Transition metal element |
| Density of Nb | 8570kg/m3；8.57g/cm3 |
| Melting Point of Nb | 2468 ℃ |
| Boiling Point of Nb | 4742 ℃ |
| Electronegativity of Nb | 1.6 |
| Atomic radius of Nb | 146pm |
| Thermal Conductivity of Nb | (300 K) 53.7 W·m−1K−1 |
| Electrical Resistivityof Nb | (0 °C) 152 nΩ·m |
Niobium ingots and billets (99.95%-99.99% purity) serve as fundamental raw materials for manufacturing critical components across superconducting, aerospace, chemical processing, and electronics industries.
Produced through electron beam refining (EBM) or vacuum arc remelting (VAR) processes with ultra-low interstitial content (O, N, C <100ppm), these premium-grade niobium are essential for superconducting wire production (including NbTi/Nb3Sn alloys for MRI magnets and fusion reactors), jet engine superalloys (such as Inconel 718 and Rene alloys for turbine blades), and corrosion-resistant chemical equipment (reactors and heat exchangers).
With exceptional properties including RRR >300 (Residual Resistivity Ratio) for superconducting applications, hot/cold workability for niobium seamless tube and rod extrusion, and full compliance with ASTM B393/AMS 7850 standards, niobium ingots (50-500mm diameter) and billets (up to 2000mm length) also find applications in semiconductor niobium sputtering targets for IC manufacturing and nuclear reactor components due to their low neutron absorption cross-section.
Available in both standard and custom sizes, our EBM/VAR-refined niobium products, including β-phase niobium feedstock and HIP (Hot Isostatic Pressed) variants, meet the most demanding requirements for advanced industrial applications while ensuring complete material traceability.
For technical specifications or application consultation, our materials engineering team provides comprehensive support to help select the optimal niobium ingot solution for your specific requirements, whether for large-scale industrial deployment or precision research applications.
In addition to Niobium Ingot, we also produce Niobium Sheet&Plate, Niobium Pellets, Niobium Foil, Niobium Rod&Bar, Niobium Wire, Niobium Disc, Niobium Shield, Niobium Target, Niobium machined parts, Niobium Spherical Powder. They meet Standard ASTM B 394 R04200, ASTM B 394 R04210, ASTM B 391 R04200, ASTM B 391 R04210, ASTM B 392 R04200, ASTM B 392 R04210, ASTM B 391 R04200, ASTM B 391 R04210.
Add: 399 Chunhe Road, Baoshan District, Shanghai, China, 200941
Tel: +86 21 56656030
Email: info@fortu-tech.com
