ASME VIII Industrial Pressure Vessel Calculator

ASME Section VIII Div 1 Pressure Vessel Calculator

This calculator determines the required wall thickness for a given internal design pressure, or the Maximum Allowable Working Pressure (MAWP) for a given wall thickness, based on ASME Boiler and Pressure Vessel Code, Section VIII, Division 1.

Calculations cover:

Cylindrical Shells (Part UG-27)
Spherical Shells (Part UG-27)
Hemispherical Heads (Part UG-32(b))
2:1 Elliptical Heads (Part UG-32(c))
Torispherical Heads (Part UG-32(d))

Units: Ensure consistency. If you use mm for length, use MPa for pressure and stress. If inches, use psi.

Disclaimer: This tool is for preliminary assessment and educational purposes. A detailed design must always be conducted by a qualified engineer using the full ASME BPVC code.

Unit System:

Vessel Component:

Calculation Mode

Calculate Required Thickness

Calculate MAWP

Common Parameters

Material Allowable Stress (S) (MPa):

Joint Efficiency (E):

Internal Diameter (ID or D) (mm):

Corrosion Allowance (CA) (mm):

Torispherical Head Parameters

Crown Radius (L) (mm):

Knuckle Radius (r) (mm):

Required Thickness Calculation Inputs

Design Pressure (P) (MPa):

Calculation Results