Enter the temperature dependent stress value.
Typical units (depending on your unit system):
-
lb/in2
-
KPa
-
N/mm²
This value varies by piping code.
BS 806
Mean stress to failure for design life at temperature.
Swedish Method 1
Creep rupture stress at temperature.
Stoomwezen
Rrg average creep stress to produce 1% permanent set after 100,000 hours at temperature (vm).
IGE/TD/12
Ultimate tensile strength.
Norwegian
The material ultimate tensile strength at room temperature is Rm (lbs./sq. in.). If no value is entered, this factor is not considered to control the expansion stress allowable.