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Tungsten (W) Electrode is a commonly...
HTWW1120
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Tungsten (W) Electrode is a commonly used consumable in TIG welding due to its high melting point and excellent heat resistance. Heeger Materials (HM) provides top-quality and customized Tungsten electrodes with the shortest lead time and competitive prices. We can provide pure tungsten electrodes and other tungsten electrodes doped trace rear earth elements.
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Availability date: 03/01/2013
Materials | Tungsten&Tungsten alloy |
Purity | N/A |
Tungsten electrodes are made by pressing and molding tungsten powder through powder metallurgy techniques and then sintering and machining it into an electrode. When adding trace rare earth elements with lower emission work function, such as thorium (Th), cerium (Ce), or their oxides, such as thorium oxide (ThO2), cerium oxide (CeO2), etc., it can significantly improve electronic emission capability. The manufactured electrodes are marked with different colors to facilitate the identification and selection of the right type of electrode for a particular welding application.
Item Name | Added Impurity (%) | Other Impurities (%) | Electric discharged power (eV) | Color code |
Pure Tungsten electrode | --- | < 0.2% | 4.5eV | Green |
Thoriated Tungsten electrode | ThO2 (0.90% ~ 1.20%) | < 0.2% | 2.0eV ~ 3.0eV | Yellow |
ThO2 (1.80% ~ 2.20%) | < 0.2% | 2.0eV ~ 3.0eV | Red | |
ThO2 (2.80% ~ 3.20%) | < 0.2% | 2.0eV ~ 3.0eV | Violet | |
ThO2 (3.80% ~ 4.20%) | < 0.2% | 2.0eV ~ 3.0eV | Orange | |
Ceriated Tungsten electrode | CeO2 (1.80% ~ 2.20%) | < 0.2% | 2.7eV ~ 2.8eV | Grey |
Lanthanated tungsten electrode | La2O3 (0.80% ~ 1.20%) | < 0.2% | 2.8eV ~ 3.2eV | Black |
La2O3 (1.30% ~ 1.70%) | < 0.2% | 2.8eV ~ 3.0eV | Golden | |
La2O3 (1.80% ~ 2.20%) | < 0.2% | 2.6eV ~ 2.7eV | Azure | |
Yttriated Tungsten electrode | Y2O3 (1.80% ~ 2.20%) | < 0.2% | 2.0eV ~ 3.9eV | Blue |
Zirconiated Tungsten electrode | ZrO2 (0.20 ~ 0.40%) | < 0.2% | 2.6eV ~ 2.7eV | Brown |
ZrO2 (0.70% ~ 0.90%) | < 0.2% | 2.6eV ~ 2.7eV | White | |
composite electrode | CeO2, ThO2, La2O3, ZrO2, Y2O3 (1.50% ~ 3.00%) | < 0.2% | Grass green |
Tungsten electrodes are tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage caused during storage or transportation. They will be packed in a carton box or wooden case supported with soft materials to ensure that the products thus packed will not shift inside the cases.
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