Hello Caesar III.

I referred to the above post but I noticed that people have conflicting opinions.
Some have advised to use a higher SIF value whereas some people advised to use SIF of 90 degree Tee only.

I am confused if SIF of 45 degree connection(Wrought Tee/Fabricated Tee) is higher/lower than 90 degree connection(Wrought Tee/Fabricated Tee).