Post weld heat treatment (PWHT) refers to any heat treatment performed after machining/welding to improve the mechanical and chemical properties of the machined surfaces/weldment. Welding induces residual stresses in a structure, which cause distortions in the structure in the long term. Moreover, t...
All welding variable must be recorded during the welding. Please note in WPS you have the range but you will not have a range in the PQR, and you need to record a single value for each specified variable.The ASME Section IX Training Course is 2 days video training course and available ...
Here the term hot work means everything related to welding or post-weld heat treatment (PWHT). PWHT also has the potential of degrading the mechanical properties of piping, in case not addressed properly. And this is the reason why the code calls for NDT after the PWHT operation. In case...
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What happens to previous welding procedure qualifications? The validity of previous welding procedure qualifications is addressed in different Sections of ISO 15614-1:2017, as follows: Introduction: “All new welding procedure tests are to be carried out in accordance with this document from the date...
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