PRODUCTS
Features
|
CAS Number: |
7440-03-1 |
|
Standard: |
ASTM B394 |
|
Purity: |
99.5%, 99.9%, 99.95% |
|
Surface: |
Polished |
|
Size: |
Outer Diameter: 0.2-8mm Wall Thickness: 0.015-0.5mm Length: Customized |
|
Tolerance: |
Outer diameter: ±0.003mm Wall thickness: ±0.005mm Length: ±0.05mm |
|
Material Grade: |
R04200-Type 1 -Reactor grade unalloyed niobium R04210-Type 2 -Commercial grade unalloyed niobium |
Product Description
Niobium capillary tubes are precision-engineered tubes with a small internal diameter, known for their high melting point, corrosion resistance, and excellent biocompatibility. These capillary tubes are extensively used in industries requiring precise control of fluids or gases, including medical devices, aerospace systems, and high-performance chemical equipment.
Niobium's exceptional chemical inertness and mechanical stability make it ideal for applications involving extreme environments, such as ultra-high vacuum systems, high-pressure equipment, and the delivery of corrosive substances. These capillary tubes are available in various dimensions and finishes to meet specific industrial and research requirements.
Features and Properties
High Melting Point: 2,468°C, suitable for high-temperature environments.
Corrosion Resistance: Withstands exposure to strong acids, alkalis, and oxidizing agents.
Biocompatibility: Safe for use in medical and biological applications.
Ductility: Enables easy machining and fabrication into complex forms.
Superconductivity: Enhances performance in advanced electronic and scientific applications.
Product Standards
ASTM B394: Standard specification for niobium and niobium alloy seamless tubes.
ISO 9001: Quality management standard applied during production.
RoHS Compliance: Free of restricted hazardous substances.
Product Forms
Straight Tubes: For high-precision applications in industry and research.
Coiled Tubes: Suitable for compact systems and heat exchange applications.
Custom Sizes and Shapes: Tailored designs for specialized uses.
Production Method and Production Equipments
Production Methods:
Cold Drawing: Produces seamless tubes with precise dimensions and superior surface quality.
Extrusion: Creates tubes with uniform wall thickness and high mechanical strength.
Annealing: Improves ductility and stress resistance.
Production Equipments:
High-Precision Drawing Machines: For accurate dimensional control.
Vacuum Furnaces: Ensures purity and removes contaminants.
Ultrasonic Testing Systems: Detects defects to guarantee quality.
Applications and Related Industries
Medical Devices: Used in surgical instruments, endoscopes, and precision diagnostic tools.
Aerospace: Ideal for high-temperature fuel delivery systems and instrumentation.
Semiconductor Industry: Delivers controlled quantities of gases in chip manufacturing.
Chemical Processing: Handles corrosive fluids in analytical and industrial processes.
Scientific Research: Used in particle accelerators and high-energy physics experiments.
Interesting Facts
Space Exploration: Niobium capillary tubes are used in propulsion systems for their ability to withstand extreme conditions.
Ultra-Pure Gas Delivery: Their smooth interior surfaces make them ideal for transporting ultra-pure gases without contamination.
Biological Compatibility: Niobium is considered hypoallergenic and is used in medical implants and instruments.
Synonyms
Nb Capillary Tube
Niobium Micro Tubes
High-Precision Niobium Tubes
Health & Safety Information
Handling and Storage:
Store in a dry, controlled environment to prevent contamination.
Avoid mechanical damage to ensure dimensional accuracy.
Safety Precautions:
Use protective gloves and handling tools during machining or transport.
Ensure proper ventilation in areas where the tubes are processed.
Disposal:
Recycle through approved facilities for reclaiming rare metals.
Dispose of responsibly according to local environmental regulations.
Why Choose Us for Niobium Capillary Tubes?
High Precision: Produced with exacting tolerances for the most demanding applications.
Custom Solutions: Tailored sizes, lengths, and finishes to meet your specific needs.
Global Expertise: Proven track record of delivering niobium products worldwide.
Commitment to Quality: Manufactured under strict quality control for consistent performance.
Contact us today to discuss your requirements and request a custom quote!
Chemical Composition
|
Composition% |
||||||||||||
|
Material |
Main Content |
Impurities (no more than %) |
||||||||||
|
Nb |
Fe |
Si |
Ni |
W |
Mo |
Ti |
Ta |
O |
C |
H |
N |
|
|
R04200 |
Remaining |
0.004 |
0.004 |
0.002 |
0.005 |
0.005 |
0.002 |
0.05 |
0.012 |
0.0035 |
0.0012 |
0.003 |
|
R04210 |
Remaining |
0.01 |
0.01 |
0.005 |
0.02 |
0.01 |
0.004 |
0.07 |
0.015 |
0.0050 |
0.0015 |
0.005 |
Niobium Capillary Tube Dimensions
|
Item |
Specification |
|
Outer diameter: |
Φ0.2～Φ8mm |
|
Wall thickness: |
0.015～0.5mm |
|
Tolerance: |
Outer diameter: Φ±0.003mm |
Chemical Identifiers
|
Linear Formula |
Nb |
|
MDL Number |
MFCD00011126 |
|
EC No. |
231-113-5 |
|
Beilstein/Reaxys No. |
N/A |
|
Pubchem CID |
23936 |
|
SMILES |
[Nb] |
|
InchI Identifier |
InChI=1S/Nb |
|
InchI Key |
GUCVJGMIXFAOAE-UHFFFAOYSA-N |
Niobium Capillary Tube Properties (Theoretical)
|
Molecular Weight |
92.9 |
|
Appearance |
Silvery |
|
Melting Point |
2468 °C |
|
Boiling Point |
4742 °C |
|
Density |
8.57 g/cm3 |
|
Solubility in H2O |
N/A |
|
Electrical Resistivity |
12.5 microhm-cm @ 0 °C |
|
Electronegativity |
1.6 Paulings |
|
Heat of Vaporization |
N/A |
|
Poisson's Ratio |
0.4 |
|
Specific Heat |
0.064 Cal/g/K @ 25 °C |
|
Tensile Strength |
N/A |
|
Thermal Conductivity |
0.537 W/cm/K @ 298.2 K |
|
Thermal Expansion |
7.3 µm/(m·K) |
|
Vickers Hardness |
1320 MPa |
|
Young's Modulus |
105 GPa |
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