Pipe wall thickness

2020-09-11View Original

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There are two pipes with a DN300 size and SCH20 specification; one belongs to Series A and the other to Series B. Are the SCH20 wall thicknesses of these two pipes the same? It seems that there is no specified wall thickness for Series B in GB/T3405-2017

Reply #22020-09-14

GB/T3405-2017？ It’s SH/T3405; that thickness is originally designated for Series A in the petrochemical industry and has nothing to do with Series B

Reply #32020-10-13

The thickness is the same, but the outer diameter is different

Reply #42020-10-15

Mixing of pipes from different series should be avoided as much as possible

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Pipe wall thickness

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