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Issues with the filling of welding records in the quality certification documents for pressure vessels

2017-08-19View Original

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Our company has manufactured a device with a carbon steel lining covered in stainless steel. I am currently preparing the quality certification documents, and for this welding record, is it necessary to specify each weld along the lining?
Reply #22017-08-19
Yes, including the transition welds, all of them have welding records
Reply #32017-08-20
In such cases, where the internal welds of the stainless steel lining are in a messy state like this, and each piece of equipment differs to some extent, is it still necessary to create a welding procedure for each one?
Reply #42017-08-20
In such cases, where the internal welds of the stainless steel lining are in a messy state like this, and each piece of equipment differs to some extent, is it still necessary to create a welding procedure for each one?
Reply #52017-08-20
The lining is not pressure-resistant. How should the weld numbers of the lining be written? The welding record must include the weld number. I don’t think it’s necessary to record welding information for the lining.
Reply #62017-08-20
I think so too, but the lining is connected to the pressure-bearing components; in that case it should be considered an E-type weld. However, assigning weld numbers to the lining’s welds is rather complicated, and keeping records of the welding process is also tricky. If a rough weld layout is used and each unit has a different layout, then doing this wouldn’t make any sense

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