I would like to ask what is the maximum pressure that a domestic 20# seamless tube with dimensions of 108*4 can withstand, in kilograms?
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As the title suggests, I would like to know what the maximum pressure for the pipeline is, or if there is any relevant information available. Thank you very much
GB/T8163 GB/T9948 GB/R6479
The pressure that a pipe can withstand is related to temperature; you can refer to the table of allowable stress values for materials in the appendix of GB/T 20801.2. There are the data for the materials that correspond to each standard listed above. For example, the 20# seamless steel pipe you mentioned could be in accordance with GBT8163 or GB8037, GB6479, GB9948, and so on.
Okay, thank you. I’ll check 8163
This should be considered a thin-walled pipe; for dimensions of 108×6, the operating pressure will not exceed 5 MPa. At room temperature, the pressure for this 4mm diameter pipe should be within 2.5 MPa
For 20-stainless steel with a wall thickness of 108*4, the maximum design pressure it can withstand is PN25Bar or PN2.5Mpa
According to our own rough calculation method for filters: 105*2*wall thickness/diameter of the steel pipe = the ultimate load capacity of the steel pipe. We use 2/3 of this value as the design pressure that the fitting is intended to withstand