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Pipe tolerance

Pipe tolerance

Pipe tolerance

(OP)
There is a fabrication tolerance of 12.5% on pipe. In stress calculations the wall thickness (sch 40) must be reduced by this amount. My question is about stainless pipe. Does this tolerance also apply to 5S, 10S etc

RE: Pipe tolerance

You should check with the applicable pipe standard e.g. A312 refers to A999 which says -12.5%. I think they're all the same but you should check.

RE: Pipe tolerance

Large diameter pipe fabricated would not use a 12.5% tolerance.  The wall thickness tolerance would look more like a plate tolerance.

Steve Braune
Tank Industry Consultants
www.tankindustry.com

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