You can use either ER316L or ER308L welding consumable.
below from API 582
AWS D 1.6 recommends 308L as below.
Technically the Base metal dissimilar (304L & 316L) will be subjected to the same process fluid as the weld metal lower or higher side.
Thanks & Regards
J.Gerald Jayakumar
On Saturday, 8 May, 2021, 09:45:21 am IST, Chiranjeevi A <chiranjeevipuvvula@gmail.com> wrote:
Dear Experts,
-- At the site 308L filler wire used for the Pipe joint between 304L and 316L. After doing the PMI QC rejected the joints and suggesting to use 316 filler.
Experts kindly share the details of the code reference to accept or any procedure to avoid cutting 20joints.
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