D212
Description:
D212 is titanium calcium type CrMo-type surfacing electrode can be AC ??and DC. Welding arc stability, slag easy.
use:
For single or multi-layer welding all kinds of worn parts surface, such as gears, bucket, mining machinery.
Deposited metal chemical composition (%)
| C | Cr | Mo |
guarantee value | 0.30 ~ 0.60 | ≤5.00 | ≤4.00 |
Example value | 0.50 | 3.90 | 0.35 |
Surfacing layer hardness:
HRC≥50
Reference current (AC, DC)
Electrode diameter (mm) | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 90 ~ 120 | 150 ~ 180 | 190 ~ 230 |
Precautions:
1. Before welding electrode to be about 150 ℃ baking 1h.
2 large parts pre-welding should be preheated to about 300 ℃, and surfacing part of the surface rust and oil clean.
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