This standard specifies the calculation methods of A and B strength flanges for steel pipe flanges. Flange calculation method A in this standard is mainly used for steel pipe flanges with nominal pressure PN of 2.0, 5.0, 11.0, 15.0, 26.0 and 42.0MPa. Flange calculation method B in this standard is mainly used for steel pipe flanges with nominal pressure PN of 0.25, 0.6, 1.0, 1.6, 2.5 and 4.0 MPa.
GB/T 17186-1997 history
2015GB/T 17186.1-2015 Calculation methods for the pipe flange joints.Part 1:Calculation method satisfies both strength and rigidity requirements
1997GB/T 17186-1997 Calculating method for the strength of steel pipe flanged joint