Is it possible to weld the project in the 5G root pass in the opposite travel direction?

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Multiple Choice

Is it possible to weld the project in the 5G root pass in the opposite travel direction?

In the 5G position, the pipe is fixed and you complete the root pass by moving the weld bead around the circumference. The travel direction is a matter of practicality and control, not a restriction of the weld itself. You can start on one side and work in the opposite direction if that arrangement gives you better arc stability, easier access, and a steady bead, provided you maintain proper arc length, consistent heat input, good fit-up, and clean root. Diameter and post-weld heat treatment do not force you to choose one direction or the other, so reversing direction for the root pass is acceptable.

In the 5G position, the pipe is fixed and you complete the root pass by moving the weld bead around the circumference. The travel direction is a matter of practicality and control, not a restriction of the weld itself. You can start on one side and work in the opposite direction if that arrangement gives you better arc stability, easier access, and a steady bead, provided you maintain proper arc length, consistent heat input, good fit-up, and clean root. Diameter and post-weld heat treatment do not force you to choose one direction or the other, so reversing direction for the root pass is acceptable.

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