Outer diameter 25MM, wall thickness 4MM, 304 seamless steel pipe, pressure resistance standards
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I plan to use 304 stainless steel pipes with an outer diameter of 25 MM and a wall thickness of 4 MM as high-pressure pipes, operating at normal temperatures under a pressure of around 30 MPA. I would appreciate it if you could provide some guidance on this matter. Thank you. Additionally, what are the pressure resistance standards for 7075 T651 alloys in the same dimensions?
GBT241-2007 Method for Hydrostatic Testing of Metal Tubes (Appendix A) also allows eddy current testing or magnetic flux leakage testing to be used in place of hydrostatic testing.
25MM wall thickness, 4MM thick, 304 stainless steel pipe, at room temperature, 30MPA – the strength of the pipe is no problem
=30*137/(2*30*1+2*30*0.4); a corrosion allowance of less than 1 mm is sufficient.