Attaching a 3/4" weldolet to a CS heavy wall Inconel lined pipe.
Attaching a 3/4" weldolet to a CS heavy wall Inconel lined pipe.
(OP)
I have a substantial amount of Inconel clad CS piping ranging from 8" - 32". The average WT of the CS is 19mm, with a 3mm thick Inconel cladding. My problem is that I have numerous 3/4" instrument connections that require weldolet or weldoflange connections. I must ensure that the Inconel coats the inside of the instrument connection & the drilled out section of the CS piping. My Client states that oversize drilling and Inconel weld overlay is not acceptable as the 3/4" hole is too small for such actions. He feels that the welder will make a mess of the overlay in such a heavy walled pipe and small hole. Can anyone suggest a way to weld a 3/4" solid Inconel weldolet to 19mm thick CS piping (Inconel clad)? Many thanks.





RE: Attaching a 3/4" weldolet to a CS heavy wall Inconel lined pipe.
Are you aware of the general difficulties with welding any Inconel?
RE: Attaching a 3/4" weldolet to a CS heavy wall Inconel lined pipe.
RE: Attaching a 3/4" weldolet to a CS heavy wall Inconel lined pipe.
This way you avoid corrosion problems and welding is easily performed on the ID and OD only.
RE: Attaching a 3/4" weldolet to a CS heavy wall Inconel lined pipe.
RE: Attaching a 3/4" weldolet to a CS heavy wall Inconel lined pipe.
Thanks again.
RE: Attaching a 3/4" weldolet to a CS heavy wall Inconel lined pipe.
RE: Attaching a 3/4" weldolet to a CS heavy wall Inconel lined pipe.
Shop weld the weldolet to a 4" long piece of 8" Inconel pipe. Cut a 4-1/2" section out of the clad pipe. Bevel the two ends back and overlay with a 1/4" of inconel. Butt weld the Inconel pipe in place.