Thank you Jop
What I'm loooking for is the crotch radius for weldolets and unfortunately I didin't find it in the chart you attached.
As you know, you can enter this parameter in the SIF definition in CAESAR ll to reduce stress intensification factor.
There are some values for the croth radius for some branch connection types like Tees in ASME B31.3 but I can't find that of Weldolets.

Best