Dear All

allowble stress carbon steel
In sustain case stress value 137895.1 Kpa
In occasional case stress value 288200.8 Kpa
In expansion case stress value 332160.6 Kpa
In expansion case stress value 315508.3 Kpa

Expansion load case
Maxmum temperature and Minimum temperature.
i need some clarification for allowble stress value why allowable stress varies in expansion cases?

The equation for the Expansion allowable (by default in CAESAR II) is:

Sa = f(1.25Sc + 1.25Sh - Sl)

"Sl" varies from element to element, therefore Sa varies from element to element.

Thanks richard