Flattening test SA-106
I have a 4” sch 40 ASME SA-106 grade B pipe; on the MTR I see no flattening test.
My questions are
What are the alternatives to flattening?
Could this pipe not need a flattening test?
I have my opinion on this, but if any 1 has any input id appreciate it.
i usualy see this test on SA-106
MDK