Engineering

Shell Thickness

Thin-walled vessel: t = PR/(S·E − 0.6P)

Runs locally in your browser

Pressure P (MPa / psi) (MPa)

Radius R (mm / in) (mm)

Allowable σ (MPa / psi) (MPa)

Weld efficiency E

Simplified ASME VIII Div.1 formula. For design — perform full code calculation.

How it works

Estimate minimum wall thickness for a thin cylindrical pressure vessel.

Who it's for: Pressure vessel designers using a simplified ASME-style formula.

t = PR/(SE − 0.6P) for circumferential stress in thin walls.

Add corrosion allowance separately for service life.

Reference only — full design requires code-compliant analysis.

Enter internal Pressure P, Radius R, allowable Stress S, and joint Efficiency E.
Read minimum thickness t.

Always perform full ASME Section VIII or applicable code calculations for real vessels.