Dear Experts,
It is mandatory to do pickling and passivation for 316 L SS piping systems, irrespective of services and thickness? No PWHT is done on that piping systems, and we have not found any Surface contaminations due to welding.
But our client is insisting us to do Pickling and passivation on welded joints. It is really required?
please share your views.
Regards
Sudhakar.k
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