LoTherme-635
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For Hard-Facing, Wear-facing or Overlay Applications

LoTherme-635

Low heat input electrode for hot working tools.

CHARACTERSTICS

LoTherme-635 is a low heat input, all conventional position electrodes depositing low alloy weld metal. The welds are of radiographic quality. The weld metal has got superior deformation resistance at high temperatures.

Applications :

It is ideally suited for surfacing of hot forging dies and repairs of large hot working dies, punches and inserts by filling out of shape for further machining to get desired profiles.

WELD METAL HARDNESS:

( On 3 Layers): 360-400 BHN (PWHT: 560 C for one Hour)

Welding Technique :

Ensure that the electrodes are perfectly dry before use. In case of moisture pick-up, re-dry the electrodes at 250°C for one hour. Clean the weld area free of any surface contamination. When welding on high hardenable materials of large thicknesses, adequate care for preheating, slow cooling & PWHT are necessary. Hold a short arc length and weld with stringer beads.

Current Conditions : DC (+) / AC


Size (mm)
6.3x450
5x450
4x450
Current Range (Amps)
250-280
200-250
150-180


For Hard-Facing, Wear-facing or Overlay Applications

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