Tungsten electrode tig welidng rod
Chemical Composition:
| Type | Substances | Added oxide % | Impurities content % | Tungsten % | Color sign |
| WC20 | CeO2 | 1.8-2.0 | <0.20 | Remaining | Grey |
| WL10 | La2O3 | 0.8-1.2 | <0.20 | Remaining | Black |
| WL15 | La2O3 | 1.3-1.7 | <0.20 | Remaining | Golden yellow |
| WL20 | La2O3 | 1.8-2.2 | <0.20 | Remaining | Sky blue |
| WZ3 | ZrO2 | 0.2-0.4 | <0.20 | Remaining | Brown |
| WZ8 | ZrO2 | 0.7-0.9 | <0.20 | Remaining | White |
| WT10 | ThO2 | 0.9-1.2 | <0.20 | Remaining | Yellow |
| WT20 | ThO2 | 1.7-2.2 | <0.20 | Remaining | Red |
| WT30 | ThO2 | 2.8-3.2 | <0.20 | Remaining | Purple |
| WT40 | ThO2 | 3.8-4.2 | <0.20 | Remaining | Orange |
| WP | – | – | <0.20 | Remaining | Green |
| WY20 | Y2O3 | 1.8-2.2 | <0.20 | Remaining | Blue |
| WR | – | 1.2-2.5 | <0.20 | Remaining | Pink |
Size:
| Diameter | Diameter tolerance | Length | Length tolerance | |
| mm | inch | mm | mm | mm |
| 1 | 1/25 | (+/-)0.01 | 50,75,150,175 | (+/-)1.0 |
| 1.2 | 6/125 | (+/-)0.01 | 50,75,150,175 | (+/-)1.0 |
| 1.6 | 1/16 | (+/-)0.02 | 50,75,150,175 | (+/-)1.0 |
| 2 | 2/25 | (+/-)0.02 | 50,75,150,175 | (+/-)1.0 |
| 2.4 | 3/32 | (+/-)0.02 | 50,75,150,175 | (+/-)1.0 |
| 3 | 3/25 | (+/-)0.03 | 50,75,150,175 | (+/-)1.0 |
| 3.2 | 1/8 | (+/-)0.04 | 50,75,150,175 | (+/-)1.0 |
| 4 | 5/32 | (+/-)0.04 | 50,75,150,175 | (+/-)1.0 |
| 4.8 | 3/16 | (+/-)0.04 | 50,75,150,175 | (+/-)1.0 |
| 5 | 1/5 | (+/-)0.04 | 50,75,150,175 | (+/-)1.0 |
| 6 | 15/64 | (+/-)0.04 | 50,75,150,175 | (+/-)1.0 |
| 6.4 | 1/4 | (+/-)0.04 | 50,75,150,175 | (+/-)1.0 |
| 8 | 5/16 | (+/-)0.04 | 50,75,150,175 | (+/-)1.0 |
| 10 | 2/5 | (+/-)0.04 | 50,75,150,175 | (+/-)1.0 |
Note:When you need other tungsten wolfram electrodes, please send us the inquiry including
designation and length*diameter.
tungsten welding electrode:
1. It used when arc welding with the Tungsten Inert gas (TIG) process or when plasma welding.
2. In both processes the electrode, arc and weld pool are protected from atmospheric contamination by an inert gas.
3. It used because it can withstand very high temperatures with minimal melting or erosion.
4. it made by powder metallurgy and are formed to size after sintering.
Feature
| • Low electronic function
• Good conductivity
• Good electron emission ability
• Good mechanical cutting performance
• High elastic modulus, Low vapour pressure
• High recrystallization temperature |