Hi Gents…is this calculation correct.
PIPE WALL THICKNESS CACULATION
Code – ASME B 31.3
Pipe Material – SS A-358 TP 321 CPI Welded
Internal Design Pressure P 5.5 barg – 80 psig
Temperature – 150 0 C – 302 F
Allowable Stress S – 20000 psig
Coefficient (Factor) Y – 0.4
Quality Factor (Joint Efficiency) E – 1
OD of Pipe D – 24’’
Corrosion Allowance c – 0
t = PD / 2 (SE + PY)
80 * 24 / 2[(20000 * 1) + (80 * 0.4)]
1920 / 40064 = 0.0479 inch
tm = t + c = 0.0479 + 0 = 0.0479 inch
I tried to search the Allowable Stress – S, for CS A-672 GR 60 Class 22 or 32, Longitudinally Welded, SAW. I couldn’t find it in ASME B31.3. Anybody can advice me on this…..?
Thank you,
Regards,
Sabir
.
.