Details

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KH-W
Type of coating: Special type
Weld metal contains massive tungsten carbide structure with extremely high hardness

Classification


Application and Features 

• Weld metal contains massive tungsten carbide structure with extremely high hardness
• It is unable to be machined due to its high hardness
• It provides excellent arc re-start and almost not slag
• It is used in severe earth abrasion with low impact conditions
• It is suitable for repairing oil drilling, mining and dredging equipment

Dredge agitator

Welding Position


Welding Instruction

• Dry the electrodes at 100-200°C for 30-60 minutes before use
• Preheat temperature should be ≥ 250°C and PWHT should be 600°C
• Weld beads should be put down in grid shape to prevent the surfacing layers from spalling

Application
- It is suitable for repairing oil drilling, mining and dredging equipment

Typical Chemical Composition of Weld Metal (wt%)


Typical Hardness of Weld Metal


Size and Suggested Operating Range (AC or DC+)