For Hard-Facing, Wear-facing or Overlay Applications

LoTherme-635B

AWS: SFA

EN ISO CODE:

It is specially designed for surfacing of dies and tools in forging industries.

Approvals

CHARACTERSTICS

LoTherme-635B is a low heat input, all conventional position electrodes depositing Cr-Ni-Mo-V-Co alloy. Balance of ltoughness and hardness with control chemistry.
The electrode gives soft & smooth arc which is easy to strike & lre-strike.
Superior operating characteristics with easy slag detachability.
The welds are of radiographic quality.
It has got superior deformation resistance at high temperatures.

Applications :

It is specially designed for surfacing of dies and tools in forging lindustries.
For repairs of large hot working dies, drop forging industry, punches and inserts by filling out of shape for further machining to get desired profiles.

WELD METAL HARDNESS:

First Layer : 34-36 RC

Third Layer : 37-40 RC

Welding Technique :

Re-dry the electrode at 250-300 C for one hour before use. Use low current, short arc and stringer beads. Preheat the job up to 400 C with slow cooling to eliminate the hot cracking.

Current Conditions : DC (+) / AC