Understanding the 5G Welding Position for Pipe In the specialized world of pipe fabrication, the is a critical skill level that separates general welders from expert pipefitters. Also known as the horizontal fixed position , 5G requires a welder to move around a stationary, horizontal pipe to complete a circumferential groove weld. Because the pipe cannot be rotated, the welder must master a combination of overhead, vertical, and flat welding techniques in a single continuous joint. What is the 5G Welding Position?
"Uphill is for strength," explains John Kessler, a CWI (Certified Welding Inspector) with 30 years in petrochemical fabrication. "Downhill is for speed. In a 5G test, the inspector is watching for one thing above all else: consistency. The weld at the bottom should look identical to the weld at the top. If you change your arc length as you go around, you fail." 5g welding position pipe