Thanks for the information! Yes, it's the best solution, I think the material should be A790 S31803 as the bend should be produced from a mother pipe. In this case, a hydrostatic test is required for each bend instead of design proof test.
Hello guys! My client requested an elbow LR 5D 90° DEG 6" SCH120 ép:14,27mm ASTM A815 UNS S31803 according to ASME B16.9; but the standard ASME B16.9 doesn't include a 5D elbow, the maximum centerline is 3D, so I told him maybe you want a 5D bend, if so it should be manufactured according to...