When using ASME IX and we are requiring CVN testing. we go to B31.3 table 323.3.1 A5 where the thickness range is T/2 to T + 1/4 inch. And not the thickness range specified in ASME IX. So i think its correct if you qualified on 6mm then thickness range qualified would be 3mm to 12mm.
Hi Guys
Maybe you can clarify. When using ASME IX and we are requiring CVN testing. Am i right in saying we go to B31.3 where the thickness range is T/2 to T + 1/4 inch. And not the thickness range specified in ASME IX
They are just class 150 restriction orifice plates. it says in local spec to grind the welds flush internaly on the Flanges.Normal WNF RF not orifice Flanges.We will not touch or modify the flanges. Is this normal practice to flush the welds off Internaly.
Does anyone know according to ASME. At present i am working on the welding of the pipes in a compressor Terminal ie butt joints. In ASME we can weld group 1 to group 1 or group 1 to group 2. But surely we cannot weld say group 1 to group 8. So where is does the limits end.Or is it we can weld...