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Tungsten Electrode, W


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Tungsten (W) Electrode is a commonly used consumable in TIG welding. Heeger Materials (HM) provides the best quality and customized Tungsten electrodes with the shortest lead time and competitive price. We can provide pure tungsten electrodes and other tungsten electrodes doped trace rear earth elements.

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Data sheet

MaterialsTungsten&Tungsten alloy

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Tungsten (W) has a high melting point of 3410℃ and boiling point of 5900℃, good conductivity, high strength, and purity of about 99.5% (mass fraction). When adding trace rare earth elements with lower emission work function, such as thorium (Th), cerium (Ce), zirconium (Zr), or their oxides, such as thorium oxide (ThO2), cerium oxide (CeO2), etc., it can significantly improve electronic emission capability. 

Tungsten Electrode, W

Tungsten Electrode Specifications

Item Name

Added Impurity (%)

Other Impurities (%)

Electric discharged power (eV)

Color code

Pure Tungsten electrode


< 0.2%



Thoriated Tungsten electrode

ThO2 (0.90% ~ 1.20%)

< 0.2%

2.0eV ~ 3.0eV


ThO2 (1.80% ~ 2.20%)

< 0.2%

2.0eV ~ 3.0eV


ThO2 (2.80% ~ 3.20%)

< 0.2%

2.0eV ~ 3.0eV


ThO2 (3.80% ~ 4.20%)

< 0.2%

2.0eV ~ 3.0eV


Ceriated Tungsten electrode

CeO2 (1.80% ~ 2.20%)

< 0.2%

2.7eV ~ 2.8eV


Lanthanated tungsten electrode

La2O3 (0.80% ~ 1.20%)

< 0.2%

2.8eV ~ 3.2eV


La2O3 (1.30% ~ 1.70%)

< 0.2%

2.8eV ~ 3.0eV


La2O3 (1.80% ~ 2.20%)

< 0.2%

2.6eV ~ 2.7eV


Yttriated Tungsten electrode

Y2O3 (1.80% ~ 2.20%)

< 0.2%

2.0eV ~ 3.9eV


Zirconiated Tungsten electrode

ZrO2 (0.20 ~ 0.40%)

< 0.2%

2.6eV ~ 2.7eV


ZrO2 (0.70% ~ 0.90%)

< 0.2%

2.6eV ~ 2.7eV


composite electrode

CeO2, ThO2, La2O3, ZrO2, Y2O3 (1.50% ~ 3.00%)

< 0.2%


Grass green

Tungsten Electrode Characteristics

  • Low electron emission function
  • High recrystallization temperature
  • Good mechanical cutting performance
  • High-temperature resistance
  • Strong electronic emission capability

Tungsten Electrode Applications

  • Inert gas-shielded arc welding
  • Plasma welding
  • Cutting
  • Spraying
  • Melting electrodes

Tungsten Electrode Packaging

Our tungsten electrodes are clearly tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage which might be caused during storage or transportation.

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