Fortu Tech specializes in manufacturing Pure niobium (Nb) products.
| Pure Niobium Regular Product | ||
| Niobium Foil | Niobium Wire | Niobium Sheet |
| Niobium Rod | Niobium Ring | Niobium Tube |
| Niobium Pellet | Niobium Target | Niobium Ingot |
Pure niobium is a metal with high corrosion resistance and excellent mechanical properties.
It is a transition metal with the chemical symbol Nb and has excellent high temperature properties.
Its crystal structure is body-centered cubic structure, which has good ductility and machinability at room temperature.
In terms of chemical properties, niobium has strong corrosion resistance, especially in acidic environments. It is not easily corroded by most acids, but can be dissolved in strong oxidizing acids such as hydrogen fluoride and aqua regia. It forms a dense, Nb2O5 film in the air. This film effectively protects the metal from further oxidation, increasing its corrosion resistance.
Niobium has good conductivity, and its thermal conductivity remains stable at high temperatures, so it is often used in high-temperature structural materials.
| Chemical Requirements Pure Niobium R04200 | ||||||||||||||||||
| 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 |
| Chemical Requirements Pure Niobium R04210 | ||||||||||||||
| 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 |
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.
| Mechanical Properties Pure Niobium | |||
| ASTM Standard | Ultimate Tensile Strength | Yield Strength | Elongation |
| ASTM Standard | 125 Mpa | 73 Mpa | 25% |
| ASTM B392 0.02" to 0.124" | 125 Mpa | 20% | |
| ASTM B392 0.125" to 2.5" | 25% | ||
| ASTM B393 <0.01" | 125 MPa | 73 Mpa | 15% |
| ASTM B393 >=0.01" | 125 MPa | 73 Mpa | 20% |
| ASTM B394 | 125 MPa | 73 Mpa | 25% |
Pure niobium is usually produced through the following major steps: ore extraction, reduction, refining, and electrolytic refining.
Ore extraction
The production of pure niobium begins with the extraction of niobium from ore. These ores contain compounds of niobium, which often form minerals with elements such as iron, titanium, and aluminum. First, the ore is crushed and ground to facilitate further chemical processing.
Chemical reduction
The crushed ore is added to an acidic or alkaline solution where niobium is separated from the other elements. By melting reduction, niobium is extracted from the ore using hydrogen, carbon or other reducing agents.
Refine
The extracted niobium usually contains impurities, such as iron, titanium, zirconium and other metals. Therefore, these impurities must be removed through a further refining process.
Common methods are to use the chlorination process or sodium reduction process to convert the impurity metal into compounds that can be easily removed.
Electrolytic refining
In order to obtain high purity niobium metal, electrolytic refining is usually used. In niobium chloride or niobium fluoride solutions, the niobium metal is deposited by electrolysis and further purified. This process can increase the purity of niobium to more than 99.9%, or even 99.99%.
Niobium casting and processing
Finally, the refined and electrolytically refined pure niobium can be molded by casting, or further processed into the desired shapes, such as plates, rods, wires, etc., for subsequent applications and alloy production.
| ASTM Standard | |||
| Shape | Standard | Type | Method |
| Niobium Ingot | ASTM B 391 | R04200-Type 1 | Reactor grade unalloyed Niobium |
| Niobium Ingot | ASTM B 391 | R04210-Type 2 | Commercial grade unalloyed Niobium |
| Niobium Rod/Wire | ASTM B 392 | R04200-Type 1 | Reactor grade unalloyed Niobium |
| Niobium Rod/Wire | ASTM B 392 | R04210-Type 2 | Commercial grade unalloyed Niobium |
| Niobium Plate/Sheet/Strip | ASTM B 393 | R04200-Type 1 | Reactor grade unalloyed Niobium |
| Niobium Plate/Sheet/Strip | ASTM B 393 | R04210-Type 2 | Commercial grade unalloyed Niobium |
| Niobium Seamless and Welded Pipe | ASTM B 394 | R04200-Type 1 | Reactor grade unalloyed Niobium |
| Niobium Seamless and Welded Pipe | ASTM B 394 | R04210-Type 2 | Commercial grade unalloyed Niobium |
Because of its excellent physical and chemical properties, niobium is widely used in aerospace, nuclear energy, chemical industry, electronics and metallurgy. Niobium has high melting point, high strength, excellent corrosion resistance and good thermal stability, which make it particularly outstanding in extreme environments.
First, niobium has important applications in aerospace. Pure niobium and niobium alloys (such as Nb-Ti and Nb-Zr alloys) are often used in the manufacture of high-temperature components and super-alloy materials for rocket engines, jet engines, because of their high temperature resistance and oxidation resistance to maintain structural stability under high temperature and high pressure environments. The good ductility of niobium also makes it suitable for use in fuel systems for missiles and spacecraft.
In the field of chemical industry, niobium's corrosion resistance makes it an ideal material for the production of equipment under strong acid and alkali media, especially in the refining process of oil, fertilizer and natural gas.
In addition, niobium, as an important component of electronic materials and superconducting materials, is widely used in the manufacture of high-performance capacitors and superconducting magnets. The oxidation resistance and conductivity of niobium alloy make it an important position in the electronics industry.
Add: 399 Chunhe Road, Baoshan District, Shanghai, China, 200941
Tel: +86 21 56656030
Email: info@fortu-tech.com
