Welding of clad vessels
Welding of clad vessels
(OP)
I need some advice on welding a clad vessel. The vessel in question is an autoclave constructed of SA-265 (SA-285C) with a crack in the shell.
My question is regarding the Weld Procedure used. Currently we plan to use a P1 to P43 weld procedure with Inconel 92 filler metal. The whole crack will welded with this procedure. Is this an acceptable method or should we be welding the SA-285C base metal with a P1 to P1 procedure and then replacing the cladding with an overlay procedure?
My question is regarding the Weld Procedure used. Currently we plan to use a P1 to P43 weld procedure with Inconel 92 filler metal. The whole crack will welded with this procedure. Is this an acceptable method or should we be welding the SA-285C base metal with a P1 to P1 procedure and then replacing the cladding with an overlay procedure?





RE: Welding of clad vessels
RE: Welding of clad vessels
RE: Welding of clad vessels
If it was up to me, I would do it as you suggested in the latter. If the autoclave has substantial thermal cycles, I would be more inclined to match the weld metal with the base metal. Then overlay the finished weld as you suggested.
RE: Welding of clad vessels
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04