Details

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KH-45-B
Type of coating: Low hydrogen type
Weld metal is martensite structure and difficult to be machined

Classification


Application and Features 

• Weld metal is martensite structure and difficult to be machined
• It provides good crack resistance, impact and medium abrasion
• It is suitable for repairing crane wheels, bulldozer, stone crushers, hitch rings, bucket ladders, caterpillar bands, canisters, shafts and blades

Pilot wheel

Welding Position


Welding Instruction

• Dry the electrodes at 300-350°C for 30-60 minutes before use
• Clean up the contaminations on the steel. Keep arc as short as possible
• Take the back-step method to prevent porosity at the arc starting
• Preheat and Interpass temperature should be ≥ 150°C
• Use high tensile strength low hydrogen electrode for the buffer layer in multi-layer build-up

Application
- It is suitable for repairing crane wheels, bulldozer, stone crushers, hitch rings, bucket ladders, caterpillar bands, canisters, shafts and blades

Typical Chemical Composition of Weld Metal (wt%)


Typical Hardness of Weld Metal


Size and Suggested Operating Range (AC or DC+)