Welding Pressure Pipeliners and Piping ... - Lincoln Electric

Welding Pressure . PIPELINES &. Piping SYSTEMS. Procedures and Techniques Table of Contents Introduction ..3. Vertical Down vs. Vertical Up ..3-4. Cross Country Pipeline-Vertical Down Welding Joint Preparation ..4. Pipe End Cleaning ..4-5. Welding the Root Pass ..5-6. Current Settings w/ Lincoln engine driven welders .6-7. Root Pass Welding ..7. Root Pass Troubleshooting ..7. Techniques for Welding Hot Pass ..8. Techniques for Welding Fill and Cap ..8. Setting the Current etc..8-9. Preventing Cracking ..10. Techniques for X60 etc..10-11. Vertical Down Procedures ..12-13. Electrode Consumption ..14-15. Thin Wall Pipe Welding Procedures ..16-20. Double Ending ..20-21. Flux & Electrode Selection ..21. API Pipe Steel ..22-24. Consumables for Welding Pipe ..25. Consumables for High Strength Pipe ..26. Consumables for SMAW.

Current Setting with Lincoln Engine Driven Welders The following recommendations are based on the following assump-tions: • Welding is done in the vertical down (5G or 6G) position. • The root pass is made with a 5/32” (4.0mm) diameter electrode. • A cellulosic electrode (E-XX10) is being used.

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  Electric, Engine, Driven, Lincoln, Lincoln electric, Welders, Lincoln engine driven welders

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