S = [P(1.3D2 + 0.4d2)] / (D2 - d2)
Where:
S = wall stress in psig;
P = 2 times service pressure;
D = outside diameter in inches;
d = inside diameter in inches.
49 C.F.R. §178.55
S = [P(1.3D2 + 0.4d2)] / (D2 - d2)
Where:
S = wall stress in psig;
P = 2 times service pressure;
D = outside diameter in inches;
d = inside diameter in inches.
49 C.F.R. §178.55