Problem:
In latest software version, Why it is not calculating the Axial stress and Allowable Loads for Tube-To-Tubesheet Joints?
Solution:
Nonmandatory Appendix A is not applicable for U-Type Heat Exchanger.
Refer below snap from the ASME Code,
As this clause is not applicable to the U-Type heat exchangers, these calculations has been removed from the new versions.