I don't think the purpose of the radiography is to find a crack in the seamless shell due to the welding because it is only spot and not full radiography. I think that it mainly has to do with the amount of examination that is performed on the weld. The more the examination to the welded joint...
So the 85% is due to the UW-12(d).
As for the radiography we calculate or MAWP for the vessels with the 85% as a standard and if a customer wants a higher pressure we will offer radiography or increased shell thickness as an option. Typically the pressures we need for the systems my company...
Hello,
I have a situation that i would like some help on calculating the joint efficiency of a seamless head to a seamless shell.
My shell is SA-106B Seamless carbon steel 8" sch 40.
My head is SA-234 WPB 2:1 ellipsoidal Seamless carbon steel 8" sch 40.
I have not performed any radiography the...
