| Product Name | Type | Color | Chemiacal Composition | Sizes (mm) |
Surface | Features | ||
| Rare Earth | Impurities | W | ||||||
| Pure Tungsten | WP | Green | – | ≤0.05 | Bal. | 0.8-15 | D,E,G,S | Non-radioactive;suitable for AC welding of aluminum, magnesium, and their alloy |
| Thoriated Tungsten | WT10 | Yellow | 0.9~1.1ThO2 | ≤0.05 | Bal. | 0.8-15 | D,E,G,S | Excellent electron emission and overall performances; high current-carrying capacity;radioactivity;suitable for DC welding of carbon steel,stainless steel,nickel alloy and titanium alloy. |
| WT20 | Red | 1.8~2.2ThO2 | ≤0.05 | Bal. | 0.8-15 | |||
| Lanthanum Tungsten | WL10 | Black | 0.8~1.2La2O3 | ≤0.05 | Bal. | 0.8-15 | D,E,G,S | Non-radioactive;excellent electric conductivity and welding capacity; high current-carrying capacity;minimum ratio of burnt area;substitute for thoriated tungsten electrode; mainly used in DC welding. |
| WL15 | Golden Yellow | 1.3~1.7 La2O3 | ≤0.05 | Bal. | 0.8-15 | |||
| WL20 | Blue | 1.8~2.2 La2O3 | ≤0.05 | Bal. | 0.8-15 | |||
| Cerium Tungsten | WC10 | Pink | 0.8~1.2CeO2 | ≤0.05 | Bal. | 0.8-15 | D,E,G,S | Non-radioactive;easier arc initiation under low current circumstances,and low arc-maintaining current;suitable for the welding of pipelines,small components and discontinuous welding. |
| WC15 | Orange | 1.3~1.7CeO2 | ≤0.05 | Bal. | 0.8-15 | |||
| WC20 | Grey | 1.8~2.2CeO2 | ≤0.05 | Bal. | 0.8-15 | |||
| Yttrium Tungsten | WY20 | Sky Blue | 1.8~2.2Y2O3 | ≤0.05 | Bal. | 0.8-15 | D,E,G,S | Non-radioactive;long and slim arc beam with high compression;deeper burning groove under medium and high current circumstances. |
| Compound Rare Earth Tungsten | WR | Cyan | 1.0~5.0MOx | ≤0.05 | Bal. | 0.8-15 | D,E,G,S | Compound rare-earthtungsten electrode;different additives contributing to better performance of tungsten electrode |
Lanthanum tungsten electrode
Tungsten electrode/ TIG welding rod
Tungsten electrodes are widely used for welding with the property of non-radiative, low melting rate, high melting point, corrosion resistance, high density, good thermal conductivity and good electrical conductivity.
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