Weld carbon steel half-pipe to stainless steel cylinder
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Can a carbon steel half-pipe be welded to the stainless steel cylinder of a pressure vessel for heating, with steam flowing inside the half-pipe?
It’s best not to, as carbon steel and stainless steel have different tensile stresses, which can lead to cracks.
The welding wire matters, the current level matters, and the technique matters; those who don’t understand welding can just skip this.
No, special materials are required if that’s the case
Is it of the same nature as a jacket, with a stainless steel inner tube and a carbon steel outer jacket? It’s better to use the same material
It should work fine if there’s no corrosion issue.
Under your conditions, it’s fine to have steam flow through half of the pipe; what matters is that the welding of the half-pipe to the cylinder shouldn’t affect the cylinder and should not cause any cracks.
Good discussion, let’s learn from it :lol
There is no issue with welding; apart from the linear expansion coefficient, what other factors can have an impact? Are there any standard specifications that prohibit such a design?