RE: [MW:25822] Using ER316L instead of ER308L to weld 304L to 304L

I suppose you built your WPS on ASME IX ; ER316L have Mo greater than ER308L which increase pitting corrosion resistance , contain also NI greater than ER308l which increase toughness.

In ASME IX change of welding electrode is essential variable but ER308L and ER316L have the same "F" number so you can make another WPS on the same PQR of ER308L.

To cover your issue and take your client approved before, if he refused respect your "WPS" and C/O wrong welded joint.

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of José Juan Jiménez Alejandro
Sent: Wednesday, December 14, 2016 4:09 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:25820] Using ER316L instead of ER308L to weld 304L to 304L

 

 

The WPS is made with ASME IX ?, I think one of the main data that should be placed in your question is the building code, so that the experts who see this email can help you, if you give incomplete information it is more difficult to help you .

 

2016-12-14 5:02 GMT-06:00 44897 <malgireddy.2007@gmail.com>:

Dear experts,

 

we have situation is here one of our welder selected wrong filler material,

 

To weld 304L to 304L as per wps it was selected ER308L.

 

One of our welder welded with ER316L we have found this after completion of weld in the PMI results where MO content is showing 2.0%.

 

Is that acceptable to weld higher grade electrode for 304L piping. 

 

Regards

Reddy.M

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Ing. José Juan Jiménez Alejandro

Cel. 812 103 1155

Skype: jjjimeneza

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