@C2it: I agree that the approach of API 6AF2 is superior but the actual calculation is very difficult to automate as it involves reading off charts. So I was deliberating another method for which I will be able to create a excel based calculator. I created two, one for Div 1 and another for...
The ASME Sec VIII Division 1 Mandatory Appendix 2 'Rules for bolted flange connections with ring type joints' does not consider additional tension or bending moment but only pressure, internal or external. I observed that people used pressure equivalent method alsong with this to check flanges...