Which standard should be used to select pipeline materials for PN160 and above
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Which standard should be used for selecting steel pipe fittings for high-pressure pipelines, with a design pressure of 25 Mpa? What standards should be followed for selecting pipe fittings?
Use the H standard; it has been in use for many years, and practice has shown that there are no problems with it
I’m not sure if there’s an updated version
Standard HGT20256-2016 applies mainly to carbon steel pipes; in my case, it’s high-pressure liquid nitrogen and nitrogen gas pipes, for which S30408 material is used. I feel that the wall thickness required by this standard is too thick, and no other specifications could be found – I’m looking for a table of thickness requirements based on different classification levels. . . .