I would like to ask you what the standard size is for seamless steam pipes

2017-08-08View Original

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I work in instrumentation and really don’t know anything about pipes. I hope you can help. The details of the pipes are as follows: material – Q235; design pressure – 1.6 MPa; design temperature – 200 degrees. It’s seamless steel pipes. I’d like to ask everyone for the standard dimensions of pipes with diameters DN350, DN250, and DN150, including their inner diameter, outer diameter, and thickness. Is there any standard I can refer to? Since it’s not possible to measure these values directly while the pipes are in use, thank you all

Reply #22017-08-09

The Q235 material should be welded steel pipes with seams, right?

Reply #32017-08-09

Additionally, pipes are divided into Series I and Series II, and their outer diameters and wall thicknesses differ; it is recommended to first determine which series the pipe belongs to

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I would like to ask you what the standard size is for seamless steam pipes

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