Details

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KS-502
Type of coating: Low hydrogen type
It is ideal for welding steels used in petro-chemical plants, such as ASTM A387Gr.5 and JIS SCMV6

Classification


Application and Features 

• It is suitable for welding Cr-Mo heat resistant steel
• Weld metal contains 5%Cr-0.5%Mo
• It is ideal for welding steels used in petro-chemical plants, such as ASTM A387Gr.5 and JIS SCMV6

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: 177~232°C, PWHT: 725~755°C

Application
- It is ideal for welding high pressure/temperature equipment steel, such as ASTM A387Gr.5 and JIS SCMV6

Typical Chemical Composition of Weld Metal (wt%)


Typical Mechanical Properties of Weld Metal


Size and Suggested Operation Range (AC or DC±)