Due to the non-listing of 1020 steel and the lack of desire to manufacture it from approved material, we have relegated the usage of these flanges to B31 applications.
thanks for the help.
Jay
Non- circular flanges are OK. This was what I thought you meant, so I quoted A2.
This flange is rectangular, not obround (but we have definately done obround flanges).
The thing is that the self-energizing gasket (O ring) does not require significant bolt load to work (M=0; Y=0), therefore...
Thanks for the quick response! We are reserving the use of U-2(g) for the present.
Would you please expand on your comment of the geometery not being consistient with A2?
2-1 SCOPE
(a) The rules in Appendix 2 apply specifically to the
design of bolted flange connections with gaskets that are...