D317
Description:
D317 is a low hydrogen sodium type CrWVMo die coating welding electrodes, using DC reverse.
use:
Die for die welding, but also for general cutting tool surfacing.
Deposited metal chemical composition (%)
| C | Cr | Mo | W | V | S | P | Other elements of the total |
guarantee value | 0.70 ~ 1.00 | 3.00 ~ 4.00 | 3.00 ~ 5.00 | 4.50 ~ 6.00 | 1.50 ~ 3.00 | ≤0.035 | ≤0.04 | ≤1.50 |
Surfacing layer hardness:
(Air-cooled after welding) HRC ≥ 50
Reference current (DC + )
Electrode diameter (mm) | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 90 ~ 120 | 160 ~ 190 | 190 ~ 230 |
Precautions:
⒈ welding electrode to be 300 ~ 350 ℃ baking 1h.
⒉ before welding the workpiece to be preheated to 300 ℃ or more, so as to avoid cracking.
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