+86 13120915623
Our Niobium Tubes are manufactured from high-purity Niobium (99.95%+) using advanced forming and drawing techniques. This ensures superior material integrity, dimensional precision, and surface quality.
Niobium's unique combination of high melting point (2468°C), excellent corrosion resistance, and good formability makes these tubes ideal for critical applications in extreme environments.
Dimensional Precision
Tight tolerances on ID, OD and wall thickness
High Temp Resistance
Stable performance at extreme temperatures
Corrosion Resistant
Excellent resistance to chemicals and oxidation
High Purity
99.95%, 99.99%, 99.995%+ Niobium with controlled impurities
Technical Specifications of Niobium Tubes
Comprehensive specifications for our niobium tubes and capillary products
| Standard Tubes | |||||
| Outer Diameter Range | Inner Diameter Range | Wall Thickness | Length | Dimensional Tolerance | Straightness |
| 3mm - 150mm | 1mm - 140mm | 0.5mm - 10mm | Up to 6000mm | ±0.02mm to ±0.1mm | ≤0.5mm/m |
| Capillary Tubes | |||||
| Outer Diameter Range | Inner Diameter Range | Wall Thickness | Length | Dimensional Tolerance | Surface Roughness |
| 0.5mm - 5mm | 0.3mm - 4mm | 0.1mm - 1mm | Up to 50000mm (coiled) | ±0.01mm to ±0.02mm | Ra < 0.1μm |
| Material Properties of Niobium Tubes | ||
| Property | Value | Test Method |
| Purity | ≥99.95% | GDMS |
| Melting Point | 2468°C (4474°F) | DTA |
| Density | 8.57 g/cm3 | Archimedes |
| Tensile Strength | 240-340 MPa | ASTM E8 |
| Thermal Conductivity | 53.7 W/(m·K) | Heat Flow Meter |
| Coefficient of Thermal Expansion | 7.3 × 10-6 /°C (20-100°C) | Dilatometry |
Why Choose Our Niobium Capillary Tubes?
-
✔
Exceptional dimensional accuracy (±0.01mm on critical dimensions)
-
✔
Superior surface finish (Ra < 0.1μm) for unimpeded flow
-
✔
Consistent wall thickness across the entire length
-
✔
Available in straight lengths or coils up to 50 meters
-
✔
Custom end configurations and surface treatments available
Applications of Niobium Tubes
Where our precision Niobium Tubes and Niobium Capillaries excel
Medical Devices
Precision Niobium Capillary tubes for diagnostic equipment, microfluidic devices, and specialized medical instruments.
Semiconductor
High-purity Niobium Tubes for ion implantation systems and chemical vapor deposition processes.
Chemical Processing
Corrosion-resistant Niobium Tubes for handling aggressive chemicals and high-purity fluids.
Aerospace
High-temperature Niobium Tubes for propulsion systems and critical fluid handling in extreme environments.
Scientific Research
Niobium Capillary Tubes for analytical instrumentation, spectroscopy, and laboratory applications.
Energy & Plasma
Niobium Tubes for fusion research, plasma physics experiments, and high-energy applications.
Advanced Manufacturing of Niobium Tubes
Precision processes that enable exceptional quality in niobium tubing
Vacuum Melting
High-purity niobium is melted in vacuum to ensure minimal contamination and exceptional material purity.
Precision Forming
Initial tube formation using advanced piercing and rolling techniques to establish basic dimensions.
Micro-Drawing
Multi-stage drawing process with diamond dies to achieve precise dimensions, especially critical for capillary tubes.
Quality Inspection
Comprehensive dimensional and surface quality inspection using laser measurement systems and optical microscopy.
Global Support
Comprehensive services for our international customers
International Delivery
Worldwide shipping with specialized packaging for delicate Niobium Capillary Tubes to ensure perfect condition on arrival.
Documentation
Comprehensive certification packages including material certificates, dimensional reports, and test data.
Technical Support
Multilingual engineering support to assist with application development and technical requirements.
Custom Solutions
Engineering assistance for custom tube designs and application-specific Niobium Tubes and Niobium Capillaries solutions.
Request Information
Our technical specialists are ready to assist with your Niobium Tube requirements