Can DN300 forged fittings be surfaced welded?
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Is it possible to perform surfacing welding on a DN300 forged fitting that is 200 mm long and 25 mm thick? Can it avoid deformation? Its layer is 16MnII, and the stack is 0Cr18Ni9. This post was last edited by sus321 on 2009-3-13 at 10:14.]
What about the material? Most materials can be surfaced welded. A 25mm thick tube should experience some deformation, but not too much; it depends on how the surfacing welding is carried out. However, the amount of deformation can be controlled by regulating the heat input during welding. I hope the original poster can provide more details – such as the base material, the surfacing material, the direction and method of welding, etc. This way we can have a more targeted discussion; otherwise, no matter how much we talk, it won’t be of any use, and it might not help you at all!
Sure, cladding is possible; to prevent deformation, machining can be carried out after cladding, and a welding process is required for cladding! !
It can be stacked; a thickness of 25 mm might cause some deformation. How thick do you plan to stack it?
Cladding using a tubular surfacing welder can effectively control welding deformation.
It’s best to use circumferential surfacing! If the inner diameter of the pipe is made a bit larger, and then welding is carried out with a thicker weld layer before further processing, there generally won’t be any problems!