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Pressure Vessel Design Calculator

Minimum wall thickness and membrane-stress checks for cylindrical shells and formed heads under internal pressure.

ModulePressure Vessel DesignMethodMembrane StressVersion1.0.0

Minimum shell thickness from circumferential (hoop) stress · ASME Sec VIII Div 1, UG-27(c)(1)

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Design Data

MPa
mm

Inside radius R = 600 mm

MPa
Presets:
mm

Section View

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Results

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Reference Codes & Standards

ASME BPVC VIII-1 (2025)Governing Code

Boiler & Pressure Vessel Code, Section VIII, Division 1

Scope:UG-27 shells & UG-32 formed heads — minimum thickness for internal pressure.
ASME BPVC II-DGoverning Code

Materials — Part D: Properties (Maximum Allowable Stress)

Scope:Allowable stress S at the design temperature for the plate material.
ASME UW-12Governing Code

Joint Efficiencies for Welded Joints

Scope:Weld-joint efficiency E based on the degree of radiographic examination.
Literature & Further Reading
  • [1]Moss, D. R. Pressure Vessel Design Manual — thin-wall sizing procedures.
  • [2]Megyesy, E. F. Pressure Vessel Handbook — worked ASME VIII-1 examples.
  • [3]ASME BPVC Section VIII, Division 1 — governing code for the formulas used.
Pressure Vessel Design Calculator — MechCalcPro