Questions regarding the validity period and utility of welding process qualification. .
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I would like to ask: 1. Is there no specific validity period for weld procedure qualification? ? ? 2. If the material standards specified in the base metal column and the welding material column for the process evaluation have been revoked, can this evaluation still be used? ? ? ? ?
I’m not sure if this is correct: 1. No, until the evaluation becomes invalid； 2. Yes, it’s possible, but the evaluation needs to be adjusted according to the new standards. We welcome everyone’s suggestions; thank you.
1. There is no expiration date for process qualification. 2. Regarding the issue of standard obsolescence, it is generally acceptable to use them, as the new material standards are more stringent than the old requirements ； However, there are also special cases, which require a comprehensive assessment.
Generally, it is sufficient to carry out the conversion in accordance with the new standards; some may require additional tasks to be completed, but those that have not been converted cannot be used.
1. No expiration date； 2. It is necessary to carry out conversion in accordance with the new standards and update it