Heavy Wall Orbital Pipe Welding MTI Power has the ability to weld with a Narrow Groove or a Conventional Groove Orbital Machine GTAW process, and has successfully completed numerous hot reheat pipe replacement projects. The pipe material was P-22 (2¼ chrome / 1-moly) and was either 38” OD x 1.8” wt or 29” OD x 1.6” wt. The welds were in the 2-G (vertical) or 5-G (horizontal) positions with some in limited access environments. During the sec

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