Product Overview
Niobium tube is manufactured from high-purity niobium (Nb) through vacuum melting, extrusion, drawing, and heat treatment processes. We offer seamless niobium tubes, welded niobium pipes, and niobium capillary tubes to meet diverse application requirements.
Chemical Composition for Pure Niobium tube (Nb tubing) and Niobium pipe
|
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 tube Mechanical Properties (Typical Values)
|
Condition/Specification |
Tensile Strength |
Yield Strength |
Elongation |
Elastic Modulus |
|
Hard/Half-hard Condition (ASTM B394) |
≥ 125 MPa |
≥ 85 MPa |
≥ 25% |
- |
|
Annealed Condition (High-purity Nb) |
550 MPa |
240 MPa |
30% |
105 GPa |
|
High-temperature Performance |
Maintains significant strength above 1000°C |
- |
- |
- |
Niobium tube Product Advantages
High Melting Point & Elevated Temperature Strength: 2468°C melting point maintains structural integrity in extreme high-temperature environments; retains significant strength in vacuum environments above 1000°C
Exceptional Corrosion Resistance: Minimal corrosion rates in most strong acids and alkalis (nitric acid, hydrochloric acid, sulfuric acid) with stable oxide protective layer formation
Low Thermal Expansion Coefficient (≈7.3 µm·m⁻¹·K⁻¹) minimizes stress and deformation during thermal cycling, ideal for heat exchangers and thermal stress-sensitive components
Excellent Mechanical Properties: Annealed condition achieves tensile strength up to 550 MPa, yield strength 240 MPa, elongation 30% (minimum 125 MPa/85 MPa/25% for some hard-condition tubes); elastic modulus ≈105 GPa
Lightweight & High Strength: Density only 8.57 g·cm⁻³, approximately 30-40% lighter than steel, significantly reducing structural weight while maintaining strength requirements
Good Weldability & Processability: Easy hot working and welding in soft or half-hard conditions, with vacuum annealing available to eliminate processing stress and enhance overall performance
Superconducting Properties: Transitions to superconducting state below 9.2 K with near-zero resistance, suitable for high-field magnet manufacturing
Niobium tube Applications
|
Industry |
Typical Applications |
Key Advantages |
|
Aerospace |
Engine structural components, rocket nozzles, aircraft engine high-temperature parts |
High melting point, heat resistance, excellent strength and toughness |
|
Nuclear Industry |
Nuclear reactor internal components, cladding materials, low neutron capture cross-section parts |
Low neutron absorption, radiation resistance, chemical stability |
|
Chemical/Petrochemical |
Heat exchanger tubes, thermometer protection tubes, corrosive media transport piping |
Excellent acid/alkali corrosion resistance, maintains integrity in strong acid/alkaline environments |
|
Electronics/Electrical |
High-pressure sodium lamp filaments, capacitor anode leads, sensor elements |
Good electrical conductivity, low resistivity (≈15 µΩ·cm) |
|
Superconducting Technology |
Superconducting magnets (MRI, particle accelerators), maglev train magnets |
Superconducting transition temperature ≈9.2 K, zero resistance characteristics |
|
Medical Devices |
Heart stents, artificial joints, implantable sensors |
Biocompatibility, corrosion resistance, lightweight high strength |
|
Advanced Manufacturing |
High-pressure high-temperature piping, aircraft engine hot-end components, marine engineering |
High strength, low thermal expansion coefficient, excellent weldability |
Manufacturing Process
Raw Material Preparation: Selection of high-purity niobium ingots (≥99.9%)
Vacuum Melting: Vacuum arc or electron beam melting to reduce impurities
Forming Process: Tube blank formation through extrusion, drawing, and rolling, followed by precision machining including turning, drilling, and grinding
Heat Treatment: Vacuum annealing to eliminate processing stress and enhance strength and toughness
Surface Treatment: Optional chemical polishing or oxide film formation for improved corrosion resistance
Selection & Usage Guidelines
High-Temperature/High-Pressure Environments: Prioritize annealed high-purity niobium tubes to ensure strength retention above 1000°C
Strong Acid/Alkaline Media: Select hard or half-hard condition tubes utilizing natural corrosion resistance, avoiding additional protective coatings
Superconducting Applications: Use niobium tubes with purity ≥99.99% with low-temperature (≤9.2 K) heat treatment for optimal superconducting performance
Weight-Sensitive Structures: Leverage niobium tubes' lightweight characteristics to replace traditional steel tubes in aerospace and advanced equipment, reducing overall mass
FAQ:
Do you provide samples?
A: Yes, we offer complimentary samples with shipping arranged by the customer. We recommend testing samples or placing trial orders before larger purchases.
Q: How competitive are your prices?
A: Our pricing reflects exceptional value when considering the premium quality and comprehensive service we provide.
Q: What is your quotation turnaround time?
A: Typically 24 hours after inquiry receipt. Urgent requests receive priority handling upon notification.
Q: How do I request custom products?
A: Please share your drawings, images, or samples. We will confirm specifications and promptly initiate production.
Contact:
About STRX Titanium – Why Choose Us?
Premium Materials：We select premium raw materials to ensure quality control from the source.
Rigorous Quality Inspection：Strict quality inspection standards are implemented to ensure 100% compliance with customer requirements.
Customized Solutions：We understand that each industry has unique needs. Our team works closely with clients to tailor products based on specific requirements. We customize all titanium products (color/size, etc.) according to customer drawings or ideas.
Fast Delivery：Advanced production management ensures efficient and prompt delivery from production to shipment.
Expert Support：Gain insights from our dedicated expert team, who provide professional advice and practical assistance. STRX Titanium helps you identify and select the best solutions tailored to your business needs, ensuring optimal results and satisfaction.
STRX Titanium has earned consistent praise from clients for high-quality products and competitive pricing. With strict quality control and professional technical support, we look forward to cooperating with you!
In Summary,STRX Titanium is a leading manufacturer and supplier of titanium products in China. We maintain strong technical partnerships with major domestic and international equipment manufacturers and uphold rigorous quality standards to meet client demands.
If you are looking for a reliable titanium product supplier, please contact us immediately to learn more about our products and services.
Email: info@strx-titanium.com
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