Tungsten electrode specifications and their applications
| Spec No. | Diameter (mm) | Length (mm) | Color Code | Main Applications |
|---|---|---|---|---|
| 1 | 1.0 | 150 | Green | Suitable for AC welding, such as welding aluminum and its alloys |
| 2 | 1.6 | 150 | Red | Commonly used in DC welding, suitable for steel, stainless steel, etc. |
| 3 | 2.0 | 175 | Blue | Suitable for precision welding, such as mold repair |
| 4 | 2.4 | 175 | Gold | Widely used in DC welding, with good arc stability |
| 5 | 3.2 | 175 | Gray | Used for high current welding operations, such as thick plate welding |
| 6 | 4.0 | 175 | Purple | Suitable for high current welding, when high penetration is required |