Welding process for pipe fixing ports
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Hello, marine friends. For welding the pipe fixing points, flux-cored wire is required. Should flux-cored wire be used for all welding operations, or only for the root pass, while it’s not necessary to use it for the fill and finish passes? Are there any relevant regulatory requirements? Urgently need **, thank you all.
If it is a pressure pipeline, flux-cored wires are not allowed to be used, as they do not comply with the pressure welding specifications. Additionally, for the welding of pressure pipelines, corresponding welding evaluations are required, and the welding must be carried out in accordance with those evaluations. In the case of ordinary pipe welding, it’s fine as long as there are no leaks during pressure testing.
Which specification provides explanations regarding the welding of pressure pipelines?