Basic coated, low hydrogen electrode depositing weld metal which is well suited for the high abrasion resistance application. The weld deposit is high-quality tool steel which is tough, hard, wear and oxidation resistance.
Mo, Cr, W, V, C
TYPICAL USES :
For manufacturing new cold & hot working tools, hot cutting tools, trimming knives, cold punching tools, valves, extrusion press pistons, forging tools.
HARDNESS OF THE PURE WELD: As welded 59 – 62 Rc
METAL AFTER WORK HARDENING: 62 – 65 Rc
WELDING INSTRUCTIONS :
- Redry electrodes at 300oC / 2 hrs. before use.
- Preheat the workpiece to about 400°C
- Hold electrode as vertically as possible and with a short arc, deposit welds. Allow the workpiece to cool slowly.
- Finish by grinding
HEAT TREATMENT INFORMATION :
ANNEALING: 4 hours at 820°C
HARDENING: 1180 – 1230oC quenching in oil
TEMPERING: 540 – 560°C
WELDING CURRENT: AC / DC (+)