Hi
We have used following technique while qualifying Super Duplex
By Tig process
i) Used Pulsed tig
ii) Used 2% Nitrogen mixed argon
iii) Input as mentioned below
iv) Used Sandvik make Tig wire
v) Before testing for Corrosion test the piece was pickled and passivated
Regards
Hegde
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Muhammed Ibrahim PK
Sent: Tuesday, August 03, 2010 9:41 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:6272] RE: 6259] G48 TESTING
Hi,
If you do not maintain the heat input between 1.25 - 1.5 KJ/mm for super duplex stainless steel welding, G48 Testing will fail.
Thanks & Regards
Muhammed Ibrahim PK
On 3 August 2010 07:24, pgoswami <pgoswami@quickclic.net> wrote:
Dear Ganesh
The failures in the pitting corrosion test could be due to numerous factors. From your query it is not at all clear, how the coupon was welded,e.g base metal, filler, welding process, technique and what were the testing conditions& results.
Why don't you post the results or summary in the forum, then the correct analysis would be be possible, otherwise it would be like a chain game.
Thanks.
Pradip Goswami,P.Eng.
Welding & Metallurgical Engineer/Specialist
Ontario Power Generation Inc.
Email-pgoswami@sympatico.ca,
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of GANESH GANESH
Sent: Monday, August 02, 2010 2:44 PM
To: materials-welding@googlegroups.com
Subject: [MW:6259] G48 TESTING
Dear Friends,
G48 Testing for Method C At 45 degree Celsius for 24 Hours is requirement for super-duplex PQR (Weld Metal)
we have failed twice in running this testing, can some one suggest a possible solution for it.
Thanks,
With Regards,
M.S.Ganesh
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
No comments:
Post a Comment