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Hoop Stress & Wall Thickness Calculator

Thin-wall cylinder — hoop stress, required t, and safety factor screening.

Thin-wall cylinder hoop stress and required wall thickness (ASME VIII Div 1 screening form). For pipes, vessels, and tubing preliminary mechanical checks.

Internal pressure (psi)

Inner diameter (in)

Wall thickness (in)

Allowable stress S (psi)

Joint efficiency E

Results

Hoop stress

24,000 psi

Required thickness

0.559 in

Safety factor (S·E / σ)

0.71

SF ≈ 0.71 — wall likely undersized. Required thickness ≈ 0.559 in (thin-wall estimate). Full ASME/code design requires MDMT, corrosion allowance, and licensed PE review.

engineeringEngineering screening only. Engineering screening calculator only — not a substitute for licensed professional engineering, API/ASME/code-compliant design, certified reserves audits, regulatory well approvals, or field-measured PVT and flow data. Verify all inputs, units, and correlations against your facility standards and qualified sign-off before operations or design decisions.

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Related guides

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Hoop stress is the first question for pressurized round things

Thin-wall cylinders dominate piping, tubing, and vessel screening. Hoop stress grows linearly with pressure and diameter, inversely with wall thickness.

Joint efficiency and allowable stress turn stress into a required thickness — still a screening step before full code paths with corrosion allowance and MDMT.

Document Studio holds the narrative for mechanical reviews; this calculator is the quick number before you open a calc sheet.

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