Basic coated, low hydrogen electrode depositing weld metal which is well suited for highly abrasion resistance application. The weld deposit is high quality tool steel which is tough, hard, wear and oxidation resistance.
ALLOY BASIS : Mo, Cr, W, V, C
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 METAL: As welded 59 – 62 Rc
AFTER WORK HARDENING: 62 – 65 Rc
• Redry electrodes at 300ºC / 2 hrs. before use.
• Preheat the workpiece to about 400ºC
• 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 820ºC
HARDENING : 1180 – 1230ºC quenching in oil
TEMPERING : 540 – 560ºC
WELDING CURRENT : AC / DC (+)