In the world of structural steel, a flat weld is a flat weld. But in pipe welding, gravity is a constant enemy, and access is a luxury. Unlike a beam you can flip over, pipe is often fixed in place—running along a wall, hanging from a ceiling, or buried in a ditch.
To standardize training and qualification, the American Society of Mechanical Engineers (ASME) and the American Welding Society (AWS) have defined specific . Each position tests a different skill set, from simple rotation to the dreaded "bellhole" position. weld positions pipe
A pipe doesn't care about your comfort. It only cares that you know your position. In the world of structural steel, a flat weld is a flat weld