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Essential Variables in Welding Procedures by Madidj_2014 is a document available to read on EtoBox.
What is Essential Variables in Welding Procedures about?
The document discusses welding procedure specification requirements for pipelines and related facilities. It specifies that a welding procedure must be requalified if any essential variables are changed, such as the welding process, base material, joint design, position, thickness, filler metal, electrical characteristics, preheat temperature, or postweld heat treatment. The document provides tables of filler metal groups and examples of variables that require requalification when changed.
- Author
- Madidj_2014
- Language
- EN