Friday, March 4, 2011

[MW:10129] Query for WPS & PQR of weld overlay


Dear friends,

I want to prepare WPS & PQR for weld overlay of Monel inside the NB 6" nozzle (material SA 106 Gr B, length 8-10").

i have a query whether i have to prepare two different WPS ( for 1.nozzle pipe to flange & 2. weld overlay inside the nozzle)

What type of procedure i should follow?

Nozzle pipe is having Sch 80 thickness & thickness of weld overlay of monel is 5 mm.

What type of NDT i should do to check the integrity of weld overlay.

what type of special techniques required in the above mentioned job.

Thanks & regards

M P Singh

Inspection Engineer



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