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Welding API 5L X65M SAWL pipe, design temperature -48°C, design code ASME B31.3.

Welding API 5L X65M SAWL pipe, design temperature -48°C, design code ASME B31.3.

Welding API 5L X65M SAWL pipe, design temperature -48°C, design code ASME B31.3.

(OP)
Does anyone have experience using API 5L X65M SAWL pipe under design code ASME B31.3 with a design temperature of -48°C? Although we have impact tests which meet the requirements according ASME B31.3 Table 323.3.5, I have my doubts about the weldability in a pipe system. Can we use our standard PQR/WPS/WPQ procedures for ASTM A333/A420 materials to weld an API 5L X65M pipe to an ASTM A420GrWPL6 reducer?

Any reply would be highly appreciated.

HJS7

RE: Welding API 5L X65M SAWL pipe, design temperature -48°C, design code ASME B31.3.

I have seen and used X65 long seam welded pipe with impacts at -48C. I believe that X65 is in Group 3 so you will need to requalify your procedures on the X65 or other group 3 material. We always qualified our WPS or had our suppliers qualify theirs on X65 production material.

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