Piping Input menu: Environment > Review SIFs at Intersection Nodes 
Input Tools toolbar: Intersection SIF Scratchpad
Allows you to calculate and review stress intensification factors (SIFs) at the selected node for intersections, weld joints, and threaded joints.
Displays the Node Selection dialog, and then the appropriate intersection SIFs dialog.
Node Selection Dialog
Enter intersection Node Number to be reviewed
Specifies the node number where you want to evaluate the stress intensification factors.
OK
Displays the B31J - Review Intersection SIF, Index, & Flexibility Dialog for all codes except IGE/TD/12 or the Review Intersection SIFs Dialog for IGE/TD/12.
B31J provides directional stress intensification factors and flexibility factors. The
software uses the highest in-plane or out-of-plane SIF when the piping code defines
a stress equation that uses a single SIF. The software uses the flexibility factors
for the specified orientation. See B31J.