[MW:29606] RE: 29598] WPS

Yes, that the correct choice with respect to welding consumable. However it's a bad design with respect to materials selection if the Duplex Stainless Steel is the major pressure boundary materials and a part of the process stream.

API steels may be welded to DSS as support , under proper cathodic protection environments, not as direct Butt-Joints with the same process parameter envelopes.

 

Thanks.

 

P.Goswami.P.Eng, IWE.

Independent Welding & Metallurgical Specialist

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

Email:pgoswami@quickclic.net,pradip.goswami@gmail.com

Cell/Whasapp:1-905-9793232

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of merghni
Sent: May 18, 2019 9:44 AM
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:29598] WPS

 

 

Dear Colleague;

 

 

I have a question ,please i want to know how to select the filler metal to weld dissimilar metal ,because i have WPS , the information :  P1 to P10H ,Grade API 5L,PSL 2  , X65Q to Grade ASME A790 S31803 and  i found the electrode ER2209 for root and E2209-16 for fill is this selection acceptable or not i need advice  .

I review ASME IX but i didn't find any information about this.

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