Niobium Tube
Our niobium tubes are made from high-quality niobium, known for their strength and resistance to extreme conditions. These tubes are available in various sizes: diameters from φ2.0 to 100mm, and lengths from 200mm to 8000mm. We can also customize them to suit your specific requirements.
These niobium tubes are perfect for industries that need materials to perform under harsh conditions. They are widely used in the petroleum and chemical industries for heat exchangers and temperature sensor protection. They also perform well in aerospace, electronics, and other high-temperature, corrosion-resistant applications.
With over 10 years of experience, we ensure our niobium tubes meet the highest standards of quality and durability. Reach out to us today to learn how our niobium tubes can support your projects.
Our Niobium Tube Specifications
Niobium Tube Information
- Material: Pure Niobium
- Standards: ASTM B394
- Grade: R04200-1, R04210-2, R04251-3, R04261-4
- Purity: Nb >99.95%, >99.99%
- Diameter: 2.0-100 mm
- Wall Thickness: 0.2-5.0 mm
- Length: 200-8000 mm
- Density: 8.57 g/cm³ @20°C
- Melting Point: 2477 °C
- Boiling Point: 4742°C
- Thermal Conductivity: 0.537 W/cm/K @ 298.2 K
- Electrical Resistivity: 12.5 microhm-cm @ 0 °C
Niobium Tube Dimensions and Tolerance
| Outer diameter, Inch (mm) | Outer diameter tolerance | Inner diameter tolerance | Thickness Deviation, %, +/- |
|---|---|---|---|
| 0.187-0.625 (4.7-15.9) | 0.004 (0.01) | 0.004 (0.01) | 10 |
| 0.625-1 (15.9-25.4) | 0.005 (0.13) | 0.005 (0.13) | 10 |
| 1-2 (25.4-50.8) | 0.0075 (0.19) | 0.0075 (0.19) | 10 |
| 2-3 (50.8-76.2) | 0.010 (0.25) | 0.010 (0.25) | 10 |
| 3-4 (76.2-101.6) | 0.0125 (0.32) | 0.0125 (0.32) | 10 |
Niobium Tube Mechanical Properties of Annealed Condition
| Grade | Ultimate tensile strength, min., psi (MPa) |
Yield strength, 0.2% Residual deformation, min., psi (MPa) |
Elongation in 1″ (25.4mm) Gage Length, min., ％ |
|---|---|---|---|
| RO4200-1 Welded |
18000 (125) | 10500 (73) | 25 |
| RO4200-1 Seamless |
18000 (125) | 8500 (59) | 25 |
| RO4210-2 Welded |
18000 (125) | 10500 (73) | 25 |
| RO4210-2 Seamless |
18000 (125) | 8500 (59) | 25 |
| RO4251-3 | 28000（195） | 18000（125） | 20 |
| RO4261-4 | 28000（195） | 18000（125） | 20 |
Why Choose SIZEN as Your Niobium Tube Supplier?
Quality Materials
Clean, high-quality material
Customized Solutions
Tailored for specific project needs.
Rigorous Quality Control
Uniform thickness, reliable use.
Superior Surface Quality
Smooth, flawless surface for precise applications.
On-Time Delivery
On-time delivery with efficient processing.
5 MAIN REASONS TO CHOOSE US
1
High-Quality Niobium Tube
Our niobium tubes are made from 99.95% pure niobium, ensuring consistent quality and performance in every batch. With our ISO-certified processes, you can trust that our products are manufactured to the highest standards.
2
Customized Solutions
We understand that each project has unique requirements. That's why we offer a wide range of sizes, thicknesses, and custom options to meet your specific needs, no matter how complex.
3
Rigorous Quality Control
Every batch of niobium tubes undergoes strict quality checks. From material purity to physical properties, we make sure each tube meets your exact specifications.
4
Superior Surface Quality
Our niobium tubes feature a smooth, flawless surface that reduces imperfections and ensures consistent performance. This attention to detail guarantees durability and quality, even in the most challenging environments.
5
On-Time Delivery
We understand the importance of meeting deadlines. Our streamlined processes ensure that you receive your niobium tubes on time, every time.
Unique Properties of Niobium Tubes
Outstanding Strength and Durability
Niobium tubes are incredibly strong and durable, even in extreme conditions. They maintain their strength under high temperatures and stress, making them ideal for demanding industries like aerospace, chemical processing, and electronics.
Excellent Corrosion Resistance
Niobium tubes resist corrosion, even in harsh environments. They can withstand acids, alkalis, and other aggressive chemicals, making them perfect for applications in chemical processing, heat exchangers, and industries exposed to corrosive substances.
Formability and Fabrication
Niobium is highly formable, allowing it to be easily shaped into a variety of sizes and configurations. This versatility makes it a great choice for custom solutions tailored to specific project needs.
Biocompatibility
Niobium is non-toxic and biocompatible, meaning it's safe to use in medical applications, such as implants and prosthetics, where material safety is critical.
High Melting Point
With a melting point of 2,468°C (4,474°F), niobium tubes perform well in extreme heat. This makes them ideal for high-temperature environments like aerospace engines and other industrial applications that require heat-resistant materials.
Excellent Conductivity
Niobium tubes have great electrical and thermal conductivity, making them suitable for applications that need efficient heat dissipation or electrical performance, such as in electronics and superconducting technologies.
Get a Quote for High-Purity Niobium Metal
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Manufacturing Process of Niobium Tubes
We start by extracting high-purity niobium from ore using advanced chemical methods, ensuring the highest quality base material. This step is crucial for ensuring purity levels that meet strict industry standards.
Using precise reduction techniques, niobium is converted into fine, uniform powders. These powders are essential for creating consistent, high-quality niobium tubes. Controlled particle size ensures optimal performance in the final product.
Niobium powder is formed into tubes using advanced extrusion or swaging techniques. This step allows us to achieve precise dimensions and wall thicknesses, ensuring uniformity throughout the batch.
The formed tubes undergo a sintering process in a vacuum or inert atmosphere, where they are heated to high temperatures to bond the metal particles, reducing porosity and improving strength and durability.
Each niobium tube is carefully heat-treated to optimize its mechanical properties. The heat treatment process ensures the material has the ideal balance of flexibility, strength, and resistance to high temperatures for your specific needs.
Using advanced cutting techniques such as laser cutting or water jet cutting, we ensure that each niobium tube meets strict dimensional tolerances. Custom lengths and sizes are produced to exact specifications.
After shaping, the tubes undergo surface refining, including pickling to remove oxides and polishing for a smooth, high-quality finish. This process enhances both the aesthetic appeal and functionality of the tubes, particularly for critical applications.
Each niobium tube undergoes thorough inspections for dimensional accuracy, surface quality, and material integrity. Once verified, the tubes are carefully packaged to maintain their quality during transit and storage.
Mixing Machine
Sintering Furnace
Die Forging
Annealing Furnace
Cold Rolling Mill
Straightening Machine
CNC Deep Hole Drilling Machine
Grinding Machine
Wire Drawing Equipment
Wire Cutting Machine
Handheld XRF Analyzer
Scanning Electron Microscope
Niobium Tube Applications: Versatility Across Industries
Aerospace and Aviation
In aerospace, niobium tubes are used in jet engines, fuel systems, and heat exchangers. Their ability to withstand extreme temperatures and pressure makes them reliable for high-performance systems, ensuring safety and durability in flight.
Medical and Biocompatible
Niobium is biocompatible and safe for the human body. That's why niobium tubes are used in medical implants, dental work, and prosthetics. These tubes are strong, resistant to corrosion, and integrate well with human tissue, making them a safe and durable choice for medical devices.
Chemical Processing
Niobium is highly resistant to corrosion, which makes it ideal for heat exchangers and chemical reactors. It's commonly used in industries like petrochemicals and pharmaceuticals, where equipment must resist harsh chemicals and high temperatures over time.
Nuclear Industry
Niobium tubes are used in nuclear reactors to protect nuclear fuel and maintain structural integrity under high temperatures and radiation. They are an essential part of fuel cladding, helping to prevent contamination and improve reactor performance.
Superconducting Materials
Niobium tubes are used in superconducting materials, such as MRI machines and particle accelerators. Their excellent electrical and thermal conductivity makes them perfect for technologies that require high performance at low temperatures, such as superconducting magnets.
Automotive Industry
Niobium tubes are used in high-performance car engines. They are found in parts like exhaust systems and turbine components where heat and pressure are extreme. Their strength and heat resistance help enhance engine performance and ensure parts last longer.
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