A "cross" is not a Code fitting. You won't find it listed in Appendix D of B31.1 or B31.3. There are no Code guidelines (that I am aware of) for the computation of the SIF value for a "cross". Therefore CAESAR II which follows the piping codes as close as possible, can not compute an SIF for this fitting, and this is why there is nothing in the documentation.

The only suggestions I can offer are:
- contact the vendor of the fitting and see if they can offer any SIF data
- perhaps employ a finite element analysis and determine the value yourself.


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Regards,
Richard Ay (COADE, Inc.)