Knowing that the pressure of the steel pipe is PN16, how do I determine the thickness?
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The pressure rating isn’t indicated on the steel pipes available on the market either; do those who sell them not know it?
The surface of steel pipes usually indicates information such as dimensions, wall thickness, steel grade, and applicable standards. And the pressure was imposed by the designers. The wall thickness of steel pipes is calculated based on the design pressure and the corresponding formula. It is also necessary to be clear about what standards and formulas to use For example, GB50251 and ASME B31.3 have different formulas for calculating the strength of straight pipes. You can check the relevant standards to take a look.
It can be found in the design manual by referring to the pressure used for the pipeline.