Do products made from foreign materials that are to comply with national standards require a welding procedure qualification?
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This post was last edited by Wang Jinlong on 2015-7-11 at 12:50. ASTM materials are being used by our company for the first time. According to Appendix B of NB/T 47014, it is also possible to classify the base material and welding materials separately; I’d like to see how other professionals in this field handle it. Thank you
If this standard material is frequently used in the country and can be manufactured there, then there is no need for a welding procedure qualification; however, if it is a relatively new type from abroad or has not been used before in the country, such a qualification is necessary. This seems to have been covered in the courses for second-level construction engineers.
I really didn’t want to do it either; after all, the guidelines state that it’s not necessary to do so, and I was just worried that the owner would cause trouble. Oh right, I’m talking about pressure vessels; it seems that a Level 2 construction engineer isn’t covered by this category
To put it simply, that’s just extra information~ You just need to remember what I said earlier: there are several categories for Level 2 construction engineers, namely architecture, municipal engineering, highway engineering, and mechanical and electrical engineering. The mechanical and electrical engineering category includes construction machinery, chemical engineering machinery, equipment machinery, and so on.
For pressure pipelines and pressure vessels. A process evaluation must be conducted upon first use. . Refer to the fixed-volume code and pressure pipeline code. .
As I understand it, weld procedure qualification is something that each company must carry out on its own. If your company does not have any procedure qualification data for this material in its database, it means that a new procedure qualification must be conducted. Welding must be carried out in accordance with the process evaluation during manufacturing.