I have query regarding Thermal Bowing.
Thermal Bowing will occur for Horizontal line having temperature difference between bottom and top of Pipe .
Due to this, tapping connected to it may get fail because of Sif.
Does we need to consider this overstress TEE or we should clear only Horizontal line for stresses qualification.
Waiting for your expert comment
Thanks in advance
Regards,
Nitin Lonkar

I see no reason to exclude this sort of strain-induced stress from the expansion stress range calculation.