t = PD / (2SE โ 1.2P) โ ASME VIII Div.1 P in MPa, D = inner diameter, S = allowable stress
10 bar, 500mm dia, S=138MPa, E=1.0: t = 1.0ร500/(276โ1.2) = 1.82mm โ provide 2mm
Frequently Asked Questions
Hoop stress is the primary stress in a cylinder due to internal pressure: ฯ = PD/2t. It acts tangentially and is twice the longitudinal stress.
ASME Boiler and Pressure Vessel Code Section VIII covers unfired pressure vessels โ the most widely used standard globally for chemical and process industry vessels.