Quote "NOTE ONE SHOULD NOT WELD ON AUSTENITIC ALLOYS, WITH FERRITIC ELECTRODES. Just check the composition from the basic rules of dilutions The reverse (using austenitic electrode on ferric steel)will work."Unquote.
The reverse also may not work (low FN and hot cracking). Superaustenitic filler metals like 309 are to be used in that case
best regards
Dr. Georgios Dilintas
Authorized Nuclear Inspector
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"'Zeghanu Gigi' via Materials & Welding" ---11/05/2015 11:14:17---Dear Goswami, As per your last message" If you buttering with Inconel-182, thereafter welding wi
From: "'Zeghanu Gigi' via Materials & Welding" <materials-welding@googlegroups.com>
To: materials-welding@googlegroups.com
Date: 11/05/2015 11:14
Subject: Re: [MW:23263] RE: 23260] Dissimilar Joint between P22(2.25Cr-1Mo) to P91( 9Cr-1Mo-V)
Sent by: materials-welding@googlegroups.com
Dear Goswami,
As per your last message" If you buttering with Inconel-182, thereafter welding with B9 and B3 welding electrode, it'll create nothing but complex welding
metallurgy. NOTE ONE SHOULD NOT WELD ON AUSTENITIC ALLOYS, WITH FERRITIC ELECTRODES. Just check the composition from the basic rules of dilutions The reverse (using austenitic electrode on ferric steel)will work."
Are you so kind to be give us more details regarding " compex welding mettalurgy "created if buttering with Inconel 182 is followed by welding with B9 and B3 welding electrode.
Regards
GIGI ZEGHEANU
Welding Engineer
--------------------------------------------
On Mon, 11/5/15, pgoswami <pgoswami@quickclic.net> wrote:
Subject: [MW:23261] RE: 23260] Dissimilar Joint between P22(2.25Cr-1Mo) to P91( 9Cr-1Mo-V)
To: materials-welding@googlegroups.com
Cc: rushabhpanjabi@gmail.com
Date: Monday, 11 May, 2015, 3:36
Hi
Rusabh,
There's
something wrong in the selection procedure of
welding electrodes. What you mentioned, i.e. use of Inconel
welding electrodes
applies for DMW between Grade-91 and Austenitic
S.S.
If you buttering
with Inconel-182, thereafter welding
with B9 and B3 welding electrode, it'll create nothing
but complex welding
metallurgy. NOTE ONE SHOULD NOT
WELD ON AUSTENITIC
ALLOYS, WITH FERRITIC ELECTRODES. Just check the
composition from
the basic rules of dilutions. The reverse (using austenitic
electrode on ferric
steel) will work.
This welding could
be easily done by using B3 or B9
welding electrodes , and butt welding P22 to P-91
steel.
Thanks
Pradip
Goswami, P.Eng,IWE
Welding &
Metallurgical Engineer/Specialist
Ontario,
Canada
pgoswami@quickclic.net
pradip.goswami@gmail.com
From:
materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of
RUSHABH
PANJABI
Sent: Sunday, May 10, 2015 10:24 AM
To:
materials-welding@googlegroups.com
Subject: [MW:23260] Dissimilar
Joint between P22(2.25Cr-1Mo) to P91( 9Cr-1Mo-V)
Hello,For dissimilar welding between P22 to
P91, i have used
Inconel 182 electrode.is it correct electrode.I have
also tried buttering
of inconel 182 on P22 and P91 and balance welding with B9
and B3.Then PWHT at
740 for 3 hours.. With buttering Side bend specimen
fails adjecent to
buttering in weld.. what can be reason for it?
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