Hi,

I want to know which stress is considered for the HYD case, I explain:
in my client spec, the Hydrotest case have to be SUS in stress Type so I have to calculate manually the Hydrotest allowable 0.9 x Yield stress for each model.

To avoid this matter I used the HYD stress type in the case option.

The problem is that I get different results. How it can be? I tried to found in the B31.3 code which type of stress is considered in the Hydrotest case (Slp? or Sb? or may be Slp+Sb) because I know that for SUS case the stress considered is :
SL= Slp+(Fax/Am)+Sb < Sh

Regards