I have a design, which uses 7/16 fillet welds to weld a tube to a pipe (Centerline of the tube is perpendicaular to the centerline of the pipe). The welding length is about Lw= 57*2= 114in and Fexx =70ksi
90k-ft torsion needes to be transfered.
I calculated like this:
Tn = 0.6* Fexx * (7/16*...