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Re: [MW:26731] Welding of 316L pipe with F347 flange

By Materials & Welding
I do not see any dilution problem. Normally dilution will be 70% from welding consumable and 15% from either side of the Base Metal. You can use electrode E316L or E347. I forsee the problem due to Molybdenum segregation due to wrong parameters.

Since this is dissimiar weld, where the Mo in 316L plays a role in improving Pitting corrosion resistance, still there are chances to accept provided other Alloying elements meeting the requirement.
 
Thanks & Regards
J.Gerald Jayakumar
0091-9344954677


From: "biju.psl@gmail.com" <biju.psl@gmail.com>
To: materials-welding@googlegroups.com
Sent: Sunday, August 20, 2017 5:22 PM
Subject: [MW:26730] Welding of 316L pipe with F347 flange

Hi,
We have a to weld a 316L pipe to F347 flange using 316L electrode.after welding during PMI it has been noted that Mo content in weld metal is only 0.15--0.21 range.Is there any document which specifies how much dilution can be acceptable

Biju
Sent from my iPad

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