GEMET 3715

 

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DESCRIPTION :

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.

ALLOY BASIS

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 (+)