Pressure Vessel Wall Thickness
Per ASME Section VIII Division 1
UG-27 • UG-32 • UG-99
01
Design Parameters
MPa (gauge)
°C
mm
mm (for weight estimate)
mm
138.0 MPa
Per ASME Section II-D
mm (default = Shell ID)
02
Shell Thickness — Cylindrical (UG-27)
📐 UG-27(c)(1) — Circumferential Stress
t = (P × R) / (S·E − 0.6·P)
where R = D/2 (inside radius)
where R = D/2 (inside radius)
—
Calc. Thickness (mm)
—
Req. Thickness + CA (mm)
—
Specified Std. Plate (mm)
—
Shell MAWP (MPa)
03
Head Thickness (UG-32)
🔵 Ellipsoidal 2:1
—
🟠 Torispherical (F&D)
—
🟢 Hemispherical
—
📐 UG-32(d) — Ellipsoidal Head (2:1)
t = (P × D) / (2·S·E − 0.2·P)
—
Calc. Thickness (mm)
—
Req. Thickness + CA (mm)
—
Specified Std. Plate (mm)
—
Head MAWP (MPa)
All heads (req. + CA):
Ellip: — mm
Tori: — mm
Hemi: — mm
04
Design Validation & Summary
—
Overall Vessel MAWP (MPa) — min(Shell, Head)
—
Hydrostatic Test Pressure = 1.3 × MAWP (MPa)
—
Design Margin (%)
—
Est. Vessel Weight (kg)
Relative Cost Indicator
Moderate
tspecified ≥ trequired — Checking...
Ptest < 1.5·S·E — Checking...
Min. thickness ≥ 1.5 mm (UG-16) — Checking...
Design pressure < MAWP — Checking...