Abstract
This research program was undertaken to investigate the use of the pulsed- gas metal-arc welding (PGMAW) process for the field, girth welding of API 5LX-80 pipe. The specific program objectives were as follows: Determine the optimum shielding in gas, commercial filler wire, and weld procedure for the PGMA girth 5LX -80 pipe welding in the 5G position of API to determine the mechanical properties of PGMA girth welds deposited in five, API 5LX-80 pipes manufactured by different pipe mills. This report summarizes the materials, equipment, and procedures used, the results obtained, a discussion of these results, and conclusions. The PGMAW welding procedures that were developed are considered field-ready and can be used reliably for field, girth-welding operations.
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L51610 Pulsed Gas Metal Arc Welding of API 5LX-80 Pipe
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