| Cerium Tungsten Electrodes Cerium Tungsten Electrode has good starting arc performance under the condition of low current. The arc current is low, therefore the electrodes can be used for welding of pipe, stainless and fine parts. Cerium Tungsten Electrodeis the first choice for replacing Thoriated Tungsten Electrode under the condition of low DC. Trade mark | Added
impurity | Impurity
quantity | Other
impurities | Tungsten | Electric
discharged
power | Color
sign | WC20 | CeO2 | 1.80 - 2.20% | <0.20% | The rest | 2.7 - 2.8 | Grey | Lanthanated Tungsten Electrodes The lanthanated tungsten electrode became very popular in the circle of welding in the world soon after it was developed because of its good welding performance. The electric conductivity of lanthanated tungsten is most closed to that of 2% thoriated Tungsten. Welders can easily replace thoriated tungsten Electrode with lanthanated tungsten electrode at either AC or DC and not have to make any welding program changes. The radioactivity from thoriated tungsten can thus be avoided. Another advantage of lanthanated tungsten electrode is being able to bear high current and having the lowest burn-loss rate. Trade mark | Added
impurity | Impurity
quantity | Other
impurities | Tungsten | Electric
discharged
power | Color
sign | WL10 | La2O3 | 0.80 - 1.20% | <0.20% | The rest | 2.6 - 2.7 | Black | WL15 | La2O3 | 1.30 - 1.70% | <0.20% | The rest | 2.8 - 3.0 | Yellow | WL20 | La2O3 | 1.80 - 2.20% | <0.20% | The rest | 2.8 - 3.2 | Sky blue | Zirconiated Tungsten Electrodes Zirconiated tungsten electrode has good performance in AC welding, especially under high load current. Any other electrodes in terms of its excellent performance can not replace Zirconiated tungsten electrodes. The electrode retains a balled end when welding, which results in less tungsten permeation and good corrosion resistance.
Our technical staffs have been engaged in research and testing work and succeeded in solving the conflicts between zirconium content and processing properties. Trade mark | Added
impurity | Impurity quantity | Other
impurities | Tungsten | Electric
discharged
power | Color sign | WZ3 | ZrO2 | 0.20 - 0.40% | <0.20% | The rest | 2.5 - 3.0 | Brown | WZ8 | ZrO2 | 0.70 - 0.90% | <0.20% | The rest | 2.5 - 3.0 | White | Thoriated tungsten Electrodes Thoriated tungsten electrode is the most commonly used tungsten electrode, Thoria is a low-level radioactive material, but it was the first to display a significant improvement over pure tungsten.
Thoriated tungsten is a good general use tungsten for DC applications, because it operates well even when overload with extra amperage, thus improves the performance of welding. Trade mark | ThO2 Content | Color sign | WT10 | 0.90 - 1.20 | Primary | WT20 | 1.80 - 2.20 | Red | WT30 | 2.80 - 3.20 | Purple | WT40 | 3.80 - 4.20 | Orange Primary | Pure Tungsten Electrodes Suitable for welding under alternating current; Yttrium Tungsten Electrodes Mainly applied in military and aviation industry with narrow arc beam, high compressing strength, highest welding penetration at medium and high current; Composite Tungsten Electrodes:Their performances can be much improved by adding two or more rare Earth oxides which are mutually complementary. The Composite tungsten electrodes have thus become out of the ordinary in the electrode family. The new type Composite Tungsten Electrode developed by us has been listed in Stade Developing Plan for new products. Electrode Name | Trade
mark | Added impurity | Impurity quantity | Other impurities | Tungsten | Electric discharged power | Color sign | Pure Tungsten Electrode | WP | -- | -- | <0.20% | The rest | 4.5 | Green | Yttrium-Tungsten Electrode | WY20 | YO2 | 1.80 - 2.20% | <0.20% | The rest | 2.0 - 3.9 | Blue | Composite Electrode | WRex | ReOx | 1.00 - 4.00% | <0.20% | The rest | 2.45 - 3.1 | |  contact: Lingda
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contact: Lingda