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Re: [MW:32247] CLAD MATERIALS -WELDING WPS /PQR ERNiCrMo3 / 7018-1 Combination

By Materials & Welding
I know that in clad welding You MUST do at least 3 overlays, otherwise the clad won´t word as it should be. You can use 2 WPS, for this pipe welding. One for ER NiCrMo3 and other to 7018-1. 
According to some codes you will need many corrosion tests to approve the PQR, and for the root and hot pass you´ll need more than 3 overlays too. You will need to do all NDT for the ER NiCrMo3 before start the SC welding...
Alcindo O. J. Jr.
21 96676-1511



Em qua., 14 de abr. de 2021 às 11:37, pravean ashok <gujulapravean@gmail.com> escreveu:
Dear we have in our previous project
Clad material in AlHosan gas Abudhabi and we found there is no issue in that material go a head 


Regards
Pravean

On Wed, 14 Apr, 2021, 11:42 am PK M, <pkmqaqc@gmail.com> wrote:

Hi experts,

 

CLAD MATERIALS -WELDING

 

We have the following Clad Pipe and we are preparing WPS /PQR to weld this SPOOL.

As I know we need to use ERNiCrMo3 / 7018-1 Combination (if GTAW+SMAW) to Complete weld.

But if anyone is having experience with this, please advise whether we will go with

 

GTAW - ER NiCrMo3 ( Root & Hot )

 

SMAW – E7018-1 (Balance Filling /Capping).

 

Please Explain any troubles may have happened regarding dilution or not.

 

Need Aramco and International code reference? If any one has a sample WPS/PQR Please share with us.

 

Any corrosion test or NDT

 

Waiting for your scientific and specific reply.

 

Thanks in Advance.

 

Pkm

pkmqaqc@gmail.com

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