Pipe Stress Calculator

Calculate hoop stress, longitudinal stress, and combined stress in pressurized piping per ASME B31.

Design internal pressure.
MPa
Pipe outside diameter. NPS 4: 114.3 mm.
mm
Nominal wall thickness. Sch 40 for 4-inch: 6.02 mm.
mm
Additional thickness for corrosion. Typical: 1.6-3.0 mm.
mm
From ASME Code Table. A106B@20°C: 137.9 MPa.
MPa

Results

Hoop Stress-MPa
Longitudinal Stress-MPa
Min Required Thickness-mm
Stress/Allowable Ratio-
References: ASME B31.1/B31.3 — Power/Process Piping