KH-CR25 Stick Electrode

Penerangan

KH-CR25
Type of coating: Low hydrogen type
Weld metal is a chromium carbide structure with 25% Cr. It provides excellent hardness and abrasion resistance at high temperature due to higher chromium carbide content

Classification


Application and Features 

• Weld metal is a chromium carbide structure with 25% Cr
• It provides excellent hardness and abrasion resistance at high temperature due to higher chromium carbide content
• The weld metal has poor impact toughness and high crack susceptibility
• It is suitable for repairing canisters, sand-blast machines, crushers, and sieves

Pump linings

Welding Position


Welding Instruction

• Dry the electrodes at 300-350°C for 30-60 minutes before use
• Preheat temperature should be ≥ 250°C and PWHT should be 600°C
• The surfacing should be limited to 2-3 layers

Application
- It is suitable for repairing canisters, sand-blast machines, crushers, and sieves

Typical Chemical Composition of Weld Metal (wt%)


Typical Hardness of Weld Metal


Size and Suggested Operating Range (AC or DC+)

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