D286A
Description:
D286A is a low hydrogen potassium type coating high manganese steel manganese molybdenum surfacing electrode, AC and DC. Deposited metal is austenitic, cold working, after impact hardening, impact resistance and wear resistance, high toughness and has good crack resistance.
use:
Suitable for high manganese steel surfacing, rail high manganese rail, turnout surfacing welding special electrode can also be used for all kinds of crusher, bulldozer affected surface - wear parts of the surfacing.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Mo |
guarantee value | ≤0.12 | 14.00 ~ 18.00 | ≤0.40 | ≤0.035 | ≤0.035 | 1.50 ~ 2.50 |
Example value | 0.10 | 15.95 | 0.15 | 0.003 | 0.014 | 2.35 |
Surfacing layer hardness:
| Welding state | After hammering | After rolling the impact |
HB | 180 ~ 230 | 370 ~ 420 | 400 ~ 500 |
Reference current (AC, DC + )
Electrode diameter (mm) | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 70 ~ 90 | 140 ~ 180 | 150 ~ 200 |
Precautions:
1. Before welding electrode to be about 350 ℃ baking 1h.
2. While surfacing welding edge water chilling, hammering after welding, rolling impact.
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