How To Weld A Root Pass On Pipe. T Pipe Root Pass Applications At the top 1200 strike the arc on the side wall and smoothly move across the gap to other side using a slight half-moon motion. In fact a lot of downhill welding is done on pipelines under the API welding codes.
T Pipe Root Pass Applications At the top 1200 strike the arc on the side wall and smoothly move across the gap to other side using a slight half-moon motion. Preparation and exact welding conditions. Using a tight arc and minimal torch angle a slight forward and back motion of the electrode helps push metal on the back side of the plate or pipe.
Preparation and exact welding conditions.
Open root vertical up rod angle. Rod angle dragging the open root weld in the flat position. We are starting back doing our Pipe Welding Instructional Videos dozens of instructors and. Once the root pass is welded let the piece cool to below 150 f.