Zvarni spoj se izvede med naslednjima dvema osnovnima materialoma:-toplotno obdelano zlitino inconel 690, iz katere so izdelane cevi U z debelino stene 1,09 mm, in-6 mm debelo plastjo inconela, ki je navarjena na osnovni material cevne stene SA-508 razred 3a debeline 590 mm.
The welded joint was formed between the following two materials:-heat-treated alloy Inconel 690, of which the U tubes with a wall thickness of 1.09 mm were made, -6 mm thick Inconel layer which was surfaced on the parent metal of the tube sheet SA-508 Class 3a with 590 mm thickness.