D608
Description:
D608 graphite graphite CrMo cast iron welding electrodes, AC and DC can be used, more suitable for the use of DC power reverse. Because the deposited metal is cast iron Cr, Mo carbide, so the surfacing layer has a high hardness and wear resistance, sediment and ore wear resistance has a good resistance.
use:
For agricultural machinery, mining equipment to withstand the abrasive and slight impact of the parts.
Deposited metal chemical composition (%)
| C | Cr | Mo |
guarantee value | 2.50 ~ 4.50 | 3.00 ~ 5.00 | 3.00 ~ 5.00 |
Example value | 3.40 | 3.56 | 4.00 |
Surfacing layer hardness:
HRC ≥55
Reference current (DC + )
Electrode diameter (mm) | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 90 ~ 120 | 130 ~ 160 | 170 ~ 210 |
Precautions:
1. The electrode before welding shall be baked at 250 ℃ for 1h.
2.When surfacing welding preheat 400 ~ 500 ℃; If the thickness of the surfacing allowed when welding with J507 electrode layer, and then hot surfacing, slow cooling after welding.
3. Surfacing layer can not be cutting, grinding only.
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