Marking of forgings for pressure vessels
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I would like to ask everyone: in accordance with the requirements of TSG 21-2016, the quality certification documents for materials used in pressure-bearing components must contain informational markings. I wonder how you guys implement this – do the quality certification documents for the forgings you use have such markings?
Steel plates and forgings generally pose no problems, as they are already materials that meet the standards for use in pressure vessels. It is still quite difficult to require informational markings on steel pipes.
For plates and pipes, the quality certificates contain informational QR codes; for forgings, there are certificates of conformity and inspection reports issued by the forging manufacturers, along with relevant inspection records. Quality certificates for forgings billets do not appear to have any informational identifiers.
Thank you. One more question: is the informational code for forgings a QR code that is directly printed on the forging certificate?
There is no clear evidence for this; moreover, this marking is not present on the certificates of conformity for our forgings, and the inspection authorities have never raised any objections.