I. Product Introduction Niobium wire is a non-ferrous metal filament made from high-purity niobium (Nb) or niobium alloys through smelting, forging, drawing, heat treatment, and finishing. It possesses excellent corrosion resistance, high-temperature resistance, electrical conductivity, weldability, and stable mechanical properties, and is widely used in high-end fields such as electronics, lighting, chemicals, medical, and aerospace.
1. Commonly Used Grades
Pure Niobium Wire: R04200 (≥99.99%), R04210 (≥99.95%)
Niobium Alloy Wire: R04251, R04261 (High Temperature, High Strength Type)
2. Specification Range
Diameter: φ0.05 mm ~ φ6.0 mm
State: Soft (annealed), semi-hard, hard
Surface: Pickled, bright, polished
Length: Customized by coil or straight strip
3. Core Performance
High Temperature Resistance: Melting point 2468℃, good high temperature stability
Corrosion Resistance: Resistant to acids, alkalis, salt solutions and most chemical media
Electrical and Thermal Conductivity: Good electrical conductivity, suitable for electrodes and leads
Processability: Can be welded, stranded, bent, and spot welded
High Purity, Low Oxygen: Low oxygen, low nitrogen, low hydrogen, meeting electronic/vacuum requirements
II. Typical Application Areas
1. Electric Light Source Industry (Most Mainstream): High-pressure sodium lamps, metal halide lamps: electrode wires, lead wires, core wires; Halogen lamps, special lamps: internal guide wires, support wires.
Features: High temperature resistance, resistance to sodium vapor corrosion, stable electron emission.
2. Electronic and Vacuum Devices
Vacuum tubes, ceramic vacuum device leads, pins
Semiconductor/coating equipment heating wires, evaporation boat leads
High-purity niobium wire for capacitors, anode wires
3. Chemical and Corrosion-Resistant Fields
Temperature measuring wires, probe wires, sensor wires for highly corrosive environments
Anode wires, cathode wires for electroplating/electrolysis industries
Internal structural wires, welding wires for chemical equipment
4. Medical and Bioengineering
Micro-niobium wires for surgical instruments and implants
Medical sensors, electrode wires (good biocompatibility, non-magnetic)
5. Aerospace and Military Industry
High-temperature leads, temperature measuring wires, structural filaments for engines
Conductive wires for low-temperature/vacuum environments in spacecraft and satellites
6. Nuclear Industry and Superconducting Fields
Low neutron absorption cross-section wires for nuclear reactors
High-purity niobium wire for superconducting components, low-temperature leads
III. Product Advantages
High purity, strict impurity control, long service life
High diameter accuracy, smooth surface, suitable for precision components
High temperature resistance, corrosion resistance, adaptable to extreme working conditions
Compatible with a full range of materials including niobium tubes, niobium sheets, and niobium flanges
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Quality Control and Testing
Each product undergoes rigorous inspection before shipment:
Dimensional Inspection: Precise measurement of thickness, length, and width
Chemical Composition and Mechanical Property Analysis: Third-party testing reports
Surface Inspection: Visual and microscopic inspection for defects
Ultrasonic Testing: Detection of internal defects
Why Choose Us
Technology and Quality: Located in Baoji, China's Titanium Valley, we possess professional production technology and extensive experience in non-ferrous metal manufacturing.
Global Coverage: We provide consistently high-quality products to customers in Australia, South Korea, Germany, the USA, the UK, Malaysia, and the Middle East.
Quality Commitment: We never compromise on quality and are responsible for every product we manufacture.
Technical Support: We have professional personnel overseeing the entire process from raw materials to finished products!
Contact Us
Our team is dedicated to serving you and hopes that every product you purchase will meet your expectations!
Email: lucky@bjfreelong.com
WhatsApp: +86 13335371763

Please contact us for detailed quotations and technical specifications. We look forward to becoming your trusted high-end titanium materials partner.
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