Details

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KL-916B3
Type of coating: Low hydrogen type
KL-916B3 is suitable for welding Cr-Mo alloy steel
It is ideal for welding high pressure steel pipes and heat exchanger steel pipes, such as ASTM A387Gr.22 and JIS SCMV4

Classification


Application and Features 

• KL-916B3 is suitable for welding Cr-Mo alloy steel
• Weld metal contains 2.25%Cr-1%Mo
• It provides great creep resistance at 550°C
• It is ideal for welding high pressure steel pipes and heat exchanger steel pipes, such as ASTM A387 Gr.22 and JIS SCMV4

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, PWHT: 675~705°C

Application
- It is ideal for welding high pressure steel pipes and heat exchanger steel pipes

Typical Chemical Composition of Weld Metal (wt%)


Typical Mechanical Properties of Weld Metal


Size and Suggested Operation Range (AC/DC±)