Ladle analysis | Check analysis | |
Carbon, maximum percent | 0.12 | 0.15 |
Phosphorus, maximum percent | .04 | .05 |
Sulfur, maximum percent | .05 | .06 |
S = [P(1.3D2 + 0.4d2)] / (D2 - d2)
Where:
S = Wall stress, in psi;
P = Test pressure in psig;
D = Outside diameter, in inches;
d = Inside diameter, in inches.
S = PD / 4t
Where:
S = Wall stress, in psi;
P = Test pressure i psig;
D = Outside diameter, in inches;
t = Minimum wall thickness, in inches.
DOT-39 NRC 250/500 M1001.
49 C.F.R. §178.65