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The designation for thickness of ASME B36.10 and API 5L

The designation for thickness of ASME B36.10 and API 5L

The designation for thickness of ASME B36.10 and API 5L

(OP)
As I know, in the ASME B36.10 the pipe is classified to SCH.No, for sch10,20,40 etc; in API 5L, the pipe is identified as ODxw'th. In ASME B36.10, it is stated that" Pipe of size of wall thickness other than those standards, XS, XXS and sch number were adopted from API 5L. It is not considered practical to establish sch number or new designation for them." Making a conclusion from it, in fact, within ASME B36.10 and API 5L the wall thickness series are corresponding completely. Is my opinion right?

Thanks for your valuable view.

RE: The designation for thickness of ASME B36.10 and API 5L

Pipeliners use many non-standard wall thicknesses.  If you need enough pipe, you can go directly to a mill and have them make any wall thickness you want.  This is often the case for pipelines that go several hundred miles.  Typically a 1/1000th thinner wall could easily save you 5 Million USD.

So, for us, OD x WT is a much better designation system than schedules.

BigInchworm-born in the trenches.
http://virtualpipeline.spaces.msn.com

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