tantalum electrode

Grades
Pure Tantalum: Ta1 (R05200), Ta2 (R05400), purity **≥99.95%~99.99%**
Tantalum Alloys: Ta-2.5W, Ta-10W, Ta-40Nb (improves high-temperature strength and creep resistance)
Physical Properties
Melting Point: 2996℃ (4th highest among metals)
Density: 16.65~16.69 g/cm³
Thermal Conductivity: 54~57.5 W/(m·K)
Coefficient of Thermal Expansion: 6.3~6.5×10⁻⁶ /K (extremely dimensionally stable)
Hardness: Annealed 140~200HV; up to 1250MPa in cold-worked state
Chemical Properties (Core Advantages)
Superior Corrosion Resistance: Resistant to corrosion from aqua regia, hydrochloric acid, sulfuric acid, nitric acid, and organic acids at room temperature
Surface Oxide Film (Ta₂O₅): Dense, stable, and with a high dielectric constant (capacitance core)
Biocompatibility: Non-toxic, non-rejecting, and bone-friendly (preferred choice for orthopedics)
Processing Performance
Good Cold Workability: Can be rolled into foil, plate, rod, wire, and tube
Welding/Forging: Easy to process under vacuum conditions, with strong high-temperature stability

Core Application Areas

1. Electronics Industry (Maximum Applications: 50%~70%)

Tantalum Capacitors: High capacitance, low leakage current, high stability, long lifespan
Mobile phones, computers, automotive electronics, military, aerospace

Tantalum Wire: Capacitor anode lead

Lithium Tantalate (LiTaO₃): Filters, surface acoustic wave devices, optical crystals

2. Chemical Corrosion Protection (Preferred for High-End Corrosion Protection)
Reaction vessels, heat exchangers, condensers, pipes, valves, pumps
Strong acids, bromine, chlor-alkali, sulfuric acid, strong corrosive environments in organic synthesis
Lifespan: Dozens of times longer than stainless steel

3. Medical and Health (Biophilic Metal)

Orthopedics: Artificial joints, spinal fusion devices, bone screws/plates, cranioplasty

Dental: Implants, prostheses

Instruments: Sutures, minimally invasive instruments, radioactive particle carriers

4. Aerospace/Military Industry

Engines: Combustion chambers, nozzles, turbine blades, high-temperature components

Rockets/Missiles: Nozzles, structural components, thermal protection

Military Industry: Non-magnetic, radiation-resistant, high-temperature resistant, corrosion-resistant components

5. Semiconductors/ Photovoltaics / Optics

Targets: Copper interconnect barrier layers for chips, coatings (high-purity tantalum)

Optics: Tantalum oxide coatings, lenses, X-ray thin films

6. Nuclear Energy / High-Temperature Furnaces

Nuclear Reactors: Structural components, cooling systems, corrosion-resistant parts

High-Temperature Vacuum Furnaces: Heating elements, heat shields, supports, crucibles

7. Hard Alloys / Cutting Tools

Tantalum Carbide (TaC): Added to hard alloys to improve red hardness, wear resistance, and toughness.

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.