I just realized that in calculations with several operating temperatures, CAESAR II takes Sh, as allowable in the SUSTAINED cases, from the highest of the temperatures (lower allowable stress, then) .
Is this OK? Has the lowest Sh must be taken or should Sh1 be the one for SUS (with P1) and Sh2 with P2 and so on?

Thanks in advance

S. Gómez
Stress Engineer