What Are Types of Tungsten Electrodes?
What are types of tungsten electrodes? Tungsten electrode is a key consumable used in Tungsten Inert Gas (TIG) welding, Plasma Arc Welding (PAW), and plasma cutting equipment. Its performance directly affects arc-starting stability, arc concentration, weld quality, and electrode service life. According to different doping elements, CTIA’s tungsten electrode can be classified into pure tungsten electrode, lanthanated tungsten electrode, ceriated tungsten electrode, zirconiated tungsten electrode, thoriated tungsten electrode, yttriated tungsten electrode, and composite tungsten electrode. Different grades provide different electron emission capabilities, current-carrying capacities, and application characteristics. Proper selection is therefore essential for improving welding efficiency and reducing production costs.
1. CTIA’s Pure Tungsten Electrode (WP)
(1) Material Composition: Tungsten content ≥99.5%
(2) Color Code: Green
(3) Features: Free of rare-earth oxides, forms a stable balled tip during AC welding, suitable for aluminum and magnesium alloy welding
(4) Applications: Conventional AC TIG welding, aluminum alloy welding, and magnesium alloy welding
2. CTIA’s Lanthanated Tungsten Electrode (WL10, WL15, WL20)
(1) Material Composition: Tungsten matrix doped with 0.8%-2.2% lanthanum oxide (La₂O₃)
(2) Color Code: Black (WL10), gold (WL15), blue (WL20)
(3) Features: Low work function, excellent arc-starting performance, high arc stability, suitable for both AC and DC welding
(4) Applications: Stainless steel, carbon steel, titanium alloys, nickel-based alloys, and automated welding equipment
Today, 2% lanthanated tungsten electrode (WL20) is one of the most widely used tungsten electrodes worldwide.
3. CTIA’s Ceriated Tungsten Electrode (WC20)
(1) Material Composition: Tungsten matrix doped with 1.8%-2.2% cerium oxide (CeO₂)
(2) Color Code: Grey
(3) Features: Excellent low-current arc starting, low starting voltage, suitable for precision and thin-sheet welding
(4) Applications: Electronic components, instruments, thin-wall tubes, and automated precision welding
4. CTIA’s Zirconiated Tungsten Electrode (WZ3, WZ8)
(1) Material Composition: Tungsten matrix doped with 0.15%-0.9% zirconium oxide (ZrO₂)
(2) Color Code: Brown (WZ3), white (WZ8)
(3) Features: Resistant to tip splitting during AC welding, strong contamination resistance, maintains a stable balled tip
(4) Applications: High-current AC welding, aluminum alloy welding, and magnesium alloy welding
5. CTIA’s Thoriated Tungsten Electrode (WT10, WT20, WT30, WT40)
(1) Material Composition: Tungsten matrix doped with 0.8%-4.4% thorium oxide (ThO₂)
(2) Color Code: Yellow (WT10), red (WT20), violet (WT30), orange (WT40)
(3) Features: Strong electron emission capability, high current-carrying capacity, the standard electrode for DC welding
(4) Applications: Carbon steel, stainless steel, copper alloys, and heavy industrial welding
With increasing environmental requirements, lanthanated tungsten electrode and ceriated tungsten electrode are gradually replacing thoriated tungsten electrode in some applications.
6. CTIA’s Yttriated Tungsten Electrode (WY20)
(1) Material Composition: Tungsten matrix doped with 1.7%-2.2% yttrium oxide (Y₂O₃)
(2) Color Code: Sky blue
(3) Features: High electron emission efficiency, excellent high-temperature resistance, suitable for high current loads
(4) Applications: Aerospace, nuclear industry, and advanced automated welding
7. CTIA’s Composite Tungsten Electrode
(1) Material Composition: Tungsten matrix co-doped with two or more rare-earth oxides, such as La₂O₃ + CeO₂ or La₂O₃ + Y₂O₃
(2) Features: Combines the advantages of multiple rare-earth elements, providing stronger electron emission, more stable arc starting, and better burn resistance
(3) Applications: Robotic welding, automated welding, aerospace, and advanced manufacturing
(4) Representative Types: Multi-component rare-earth tungsten electrode and ternary composite tungsten electrode
Composite tungsten electrode is an important development direction for high-performance tungsten electrodes and maintains stable performance under high-current and long-duration welding conditions.
8. CTIA’s Ground Tungsten Electrode
(1) Base Material: Tungsten
(2) Tip Angle: 15°-90°
(3) Features: High arc concentration and stable weld formation, suitable for precision welding
(4) Applications: Automated welding equipment, pipeline welding, rail transportation, pressure vessels, and precision manufacturing
Ground tungsten electrode is a tungsten electrode processed to a specific tip geometry through precision grinding.
9. Comparison of CTIA’s Tungsten Electrodes
The comparison of CTIA’s tungsten electrodes is shown in the picture below:
With over 30 years of tungsten electrode manufacturing experience, CTIA GROUP (CTIA) has established complete production capabilities covering high-purity tungsten powder preparation, powder metallurgy forming, sintering, forging, and precision grinding. CTIA supplies a full range of tungsten electrodes, including pure tungsten electrodes, lanthanated tungsten electrodes, ceriated tungsten electrodes, zirconiated tungsten electrodes, thoriated tungsten electrodes, yttriated tungsten electrodes, and composite tungsten electrodes. Based on welding material, current level, equipment type, and automation requirements, CTIA provides customized solutions for applications ranging from precision electronic welding to heavy-duty industrial welding.
For any inquiry, please contact tungsten electrode manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: www.tungsten.com.cn
WeChat:
More info>>