Pressure vessel shell thickness calculation tool is based on design standard EN 13445.
Use this tool to compare how steel grade selection affects the wall thickness in a pressure vessel's cylindrical shell.
This tool can be used for estimation only and end caps/dished ends are not included in calculations. We are happy to discuss your requirements in more detail.

Temperature (°C)
-40°C - 250°C
Weld joint coefficent
Inside Ø of shell (mm)
100 - 10 000 mm
Design pressure (bar)
1 - 50 bar
Corrosion allowance (mm)
Used only for carbon steels

Plate thickness comparison (mm) for different steel grades

Example calculation is based on a typical domestic water heater.

Duplex steel
Austenitic steel
* Carbon steel not available from Outokumpu