Welding of Duplex Tubes to Inconel 625 tubesheets.
Welding of Duplex Tubes to Inconel 625 tubesheets.
(OP)
I am trying to get some information on welding Duplex Stainless Tubes (P10H) to Inconel 625 (P43)tubesheets for use in air-cooled heat exchangers. Is it possible to weld these alloys together? And what specification of filler metal would one employ? This will obviously be a GTAW procedure.





RE: Welding of Duplex Tubes to Inconel 625 tubesheets.
RE: Welding of Duplex Tubes to Inconel 625 tubesheets.
RE: Welding of Duplex Tubes to Inconel 625 tubesheets.
I would also suggest a filler with Ti and/or Nb for stabilization.
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Plymouth Tube