How To Weld A Steel Pipe. I wrap the lead around the pipe three to six times about half the pipe diameter away from the weld groove on the opposite side from the direction of the arc blow pull. Welding the Root Pass Before beginning to weld the pipe the procedure should be checked to assure that the correct electrode is being used.
1Align the two pipes and use clamps to hold them together if necessary. A common welding technique using the SMAW process is to weave your layer beads. Tack welds around the weld joint.
Many fabricators will fill the pipe with fine-grained dry sand and close the ends of the pipe.
End of the pipe. Welding pipe can cause the pipe to deform in strange ways because of the curved surfaces on which the stresses act during the heating and cooling process. By removing the area which is being welded of any zinc you can use both MIG or Stick electrode welding techniques to perform your desired outcome. Some specialized forms of straightening deserve mention.