Product Overview
Niobium wire is manufactured from high-purity niobium through precision drawing processes, available in various forms including coil, spool, and straight wire configurations to meet diverse industrial requirements.
Niobium wire Chemical composition for our niobium
|
Composition (%) |
||||||||||||
|
Grade |
Main Content |
Impurities (≤ %) |
||||||||||
|
Nb |
Fe |
Si |
Ni |
W |
Mo |
Ti |
Ta |
O |
C |
H |
N |
|
|
Nb1 |
Remainder |
0.004 |
0.004 |
0.002 |
0.005 |
0.005 |
0.002 |
0.05 |
0.012 |
0.0035 |
0.0012 |
0.003 |
|
Nb2 |
Remainder |
0.01 |
0.01 |
0.005 |
0.02 |
0.01 |
0.004 |
0.07 |
0.015 |
0.0050 |
0.0015 |
0.008 |
Niobium wire Mechanical requirements (annealed condition) for our niobium wire
|
Grade |
Tensile strength,δb psi (MPa), ≥ |
Yield strength,δ0.2, psi (MPa), ≥ |
Elongation in 1"/2" gage length, %, ≥ |
|
R04200-1 R04210-2 |
18000 (125) |
10500 (73) |
25 |
|
Special requirements of niobium wire to be agreed on negotiations |
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Electrical & Thermal Properties
Electrical Resistivity (20°C): ~152 nΩ·m (1.52 × 10⁻⁷ Ω·m)
Temperature Coefficient: Rapid initial increase followed by stabilization; extremely low resistivity at cryogenic temperatures, ideal for superconducting applications
Melting Point: ~2468°C, maintaining high-temperature strength and hardness
Thermal Expansion Coefficient: ~7.3 × 10⁻⁶ K⁻¹ (compatible with titanium, copper, and other common substrates)
Key Advantages
High Melting Point & Elevated Temperature Strength: Maintains significant strength at 1650°C, suitable for extreme environments including aircraft engines and rocket nozzles
Exceptional Corrosion Resistance: Virtually immune to strong acids (nitric, hydrochloric, sulfuric), commonly used for chemical equipment linings
Low Thermal Neutron Absorption Cross-section: Significantly reduces neutron capture rates in nuclear reactor structural components and fuel cladding
Superconducting Properties: Critical temperature ~9.2 K, widely used in cryogenic superconducting magnets and SRF cavities
Excellent Ductility & Processability: Drawable to 0.015 mm diameter while maintaining high strength after cold working, facilitating fine wire and composite material production
Stable Resistivity: Gradual variation across wide temperature ranges, suitable for high-frequency, low-loss electronic devices (e.g., high-pressure sodium lamp anodes, capacitor anodes)
Applications
|
Industry |
Specific Applications |
Description |
|
Aerospace |
Engine structural components, rocket nozzles, aircraft high-temperature parts |
Utilizes high melting point, strength, and corrosion resistance |
|
Nuclear Industry |
Reactor internal structures, fuel cladding, low-absorption materials |
Low neutron absorption, radiation resistance, high-temperature tolerance |
|
Electronics/Electrical |
High-pressure sodium lamp anodes, capacitor anodes, superconducting magnets, cryogenic detection wires |
Superconducting transition temperature, low resistivity |
|
Chemical Processing |
Acid-resistant valves, pump bodies, reactor linings |
Excellent corrosion resistance to strong acids and alkalis |
|
Medical |
Implantable stents, prosthetics (orthopedic, dental) |
Biocompatibility, corrosion resistance, high mechanical strength |
|
Advanced Materials |
Nb-Zr, Nb-Ti alloy wires, Cu-Nb composite conductors, nanocrystalline ribbons |
Used in high-strength/high-conductivity composites, magnetic materials |
|
Optics/Vacuum Technology |
Vacuum tube getters, electron gun cathodes, thermionic emission sources |
Low vapor pressure, high-temperature resistance, excellent electron emission |
Common Alloys/Variants
|
Alloy |
Primary Composition |
Enhanced Properties |
|
Nb-Zr (Nb-Zr-1/2) |
Nb + 1% Zr (with minor Hf) |
Improved oxidation resistance, strength ≥195 MPa |
|
Nb-Ti |
Nb + 10% Ti |
Higher superconducting critical field, widely used in MRI and particle accelerators |
|
Nb-C-103 |
Nb + 0.3% C |
Combined high-temperature strength and corrosion resistance |
|
Cu-Nb Composite Wire |
Nb core filaments in Cu matrix |
High strength (~915 MPa) with high conductivity (≥70% IACS) |
|
Nb-Zr-Ti (for HPS lamps) |
Nb-Zr-Ti ternary alloy |
Long anode life, high luminous efficiency |
Selection & Usage Guidelines
Operating Temperature: For applications above 1500°C, recommend Nb-Zr or Nb-C-103 alloys for enhanced oxidation resistance
Corrosive Environments: For strong acid/alkaline conditions, select high-purity Nb (≥99.99%) with polished surface treatment
Superconducting Requirements: Pure Nb (Nb-1) is preferred for cryogenic superconductivity; Nb-Ti alloy recommended for higher critical magnetic fields
Mechanical Processing: For fine wire drawing (≤0.02 mm), recommend vacuum annealing at 800°C-1100°C followed by processing for optimal strength-ductility balance
Resistivity Control: For high-frequency or low-loss circuits, select high-purity Nb with resistivity ≤160 nΩ·m and perform low-temperature resistivity verification before use
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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