These tables are intended as a useful guide in calculating the highest permissible internal pressures for Outokumpu Stainless Tubular Products pipes in certain grades, sizes and at specified temperatures. The values should be regarded as rough indications only. Pipe systems with elbows, flanges, fastening, etc. often require more detailed calculations.

The weld factors used in the calculations are according to our approvals from authorities. Internal vacuums are not taken into account in the calculations.

Quick guide for 20 C.
Tables with allowable pressure for ISO and metric pipe.

Products available for on-line calculation are:
Calculations according to EN 13480-3 or ASME B31:3 in all available dimensions and grades.
Pipes and tubes

Butt Weld Fittings
Calculations according to EN 13480-3 in all available dimensions and grades.
Elbows 
Reducers 
Tees

Outokumpu will not be responsible for any loss or damage caused by using this information.