PIPE WALL THICKNESS CACULATION

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16 years 2 months ago - 16 years 2 months ago #7271 by sabir
PIPE WALL THICKNESS CACULATION was created by sabir
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

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