D212
D212 is a CrMo surfacing welding electrode with titanium-calcium coating, which can be used for both AC and DC applications. It has good welding performance with smooth arc and effortless slag removal ability.
The product is applicable for single-layer or multi-layer surfacing on the surface of worn parts, such as gears, excavators and mining machinery.
Chemical components of deposited metal (%)
Test item |
C |
Cr |
Mo |
| Example value | 0.50 | 3.90 | 0.35 |
Hardness of surfacing layer:
Test item |
HRC |
| Example value | 55 |
Reference current (AC, DC)
Welding electrode diameter (mm) |
Φ3.2 |
Φ4.0 |
Φ5.0 |
| Welding current (A) | 90-120 | 150-180 | 190-230 |
1. Before welding, the welding electrode must be baked at about 150℃ for 1h.
2. Before surfacing welding of large work pieces, it should be properly preheated to about 300℃, and removed of the rust and oil stain on the welding surface.
2. Before surfacing welding of large work pieces, it should be properly preheated to about 300℃, and removed of the rust and oil stain on the welding surface.
