If you are training for the 6G position, focus on and body positioning . The ability to comfortably reach the "blind spots" of the pipe while maintaining a steady hand is just as important as your welding technique.

Because of this difficulty, is often a requirement for critical piping work (boilers, pressure vessels, pipelines, nuclear, oil & gas).

A failed 6G test means the welder cannot re-test on the same coupon; must weld a new pipe.