I have a part that needs to be CJP welded per D1.1 that is made out of A513 DOM to a flange that is machined out of a solid piece of 1018 steel with a backer for the CJP machined into the flange. The A513 DOM is roughly 2" OD with a .25" wall thickness. Since A513 is not on the list of materials in D1.1 it requires a PQR.
From what I am finding it appears to be impossible to make a PQR that covers all of the necessary requirements due to material availability. The two viable options are to do a plate to plate PQR or a pipe to pipe PQR but A513 does not come in a plate form and finding 1018 in a pipe size that is in this range I am being told is not possible (a quick google search as I was typing this sentence may have found that my sources were incorrect).
We proposed to utilize B2.1 specifically for the material equivalency system with M#s, but the customer will not allow it.
Further discussions lead to performing the PQR with the A513 DOM to a piece of 1018 solid round bar that is machined into a pipe size that will match the A513. This sounds technically correct but I don't like the idea of removing so much material in something like that as I fear it would potentially compromise the material, or at least not being a true test for the situation.
I cannot imagine that we are the first ones to run into such a situation. Does anyone have any suggestions for something like this?