Details

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KL-818B2
Type of coating: Iron powder low hydrogen type
KL-818B2 is suitable for welding Cr-Mo alloy steel

Classification


Application and Features 

• KL-818B2 is suitable for welding Cr-Mo alloy stee
• It provides high deposition rate and good weldability
• Weld metal contains 1.25%Cr-0.5%Mo
• It is ideal for welding in high pressure steel pipes, heat exchanger steel pipes, rolled, cast and forged steel

Welding Position


Welding Instruction

1. Clean up the contaminations on the steel.
2.  Dry the electrodes at 350~400°C for 60 minutes before welding.
3. Keep arc as short as possible. Take the back step method to prevent porosity at arc start and re-start. (Please refer to Appendix A)
4. Preheat and interpass temperature: 160~190°C,
5. PWHT:675~705°C

Application
- It is ideal for welding in high pressure steel pipes, heat exchanger steel pipes, rolled, cast and forged steel

Typical Chemical Composition of Weld Metal (wt%)


Typical Mechanical Properties of Weld Metal


Size and Suggested Operation Range (AC/DC±)