RE: [MW:23125] Change of Brand for SAW Consumables

Dear Friends
I fully agree with Mr Goswami
Flux plays the major role in getting the results especially Impact results with respect to PWHT condition and preferably we can not change the combination (Brand) unless it is tested with simulation condition as per Job requirement
I would like to share the exeperience -By changing the combination of Flux brand (Even though thechanged Flux satisfy the code equirement as per ASMe Code) with using the earlier qualified PWHT condition like temp,Soaking time heating/cooling rate and also Heat input we could not achieve the Impact results as desire
Therefore I used to requialify the PQR with revised changes in Flux/wire combination (Brand)
(Only for Non critical requirement i.e. only for UTS requirement you can use the changed brand however it is better to test UTS on PTC)
Regards
Hegde P.B.
--------------------------------------------
On Fri, 17/4/15, pgoswami <pgoswami@quickclic.net> wrote:y

Subject: RE: [MW:23124] Change of Brand for SAW Consumables
To: materials-welding@googlegroups.com
Date: Friday, 17 April, 2015, 6:01 PM





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To Everyone in
Welding and Materials
Community,
 
This query has
generated many responses, many just on
the fly some are detailed. SAW
is a key welding
process for any good fabrication related work.
FLUX is
the key to any SAW process, more than filler
wire.
Hence a change of flux is considered as an
essential
variable.
 
Wire flux classification test is
done by manufacturers in undiluted test pads or groove
joints (see SFA 5.23).
Those results vs. the the PQR results differs in many
instances, due to
dilution ,heat
input........etc.
 
Hence if
the flux is changed the PQR should be
prequalified.

 
ASME
interpretations are one or two lines, many be a short
paragraph with a lot of
inner meanings.
 
Perhaps a spread
sheet with all the pro and the
cons would be beneficial to all.
 
Also
I would like to say the question is
open ended. If one is asking an engineering
solution, design code,
specifications, technical requirements all needs to be
considered, which is
missing for many queries off late.
 
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
Jim
Price
Sent: Friday, April 17, 2015 7:59 AM
To:
materials-welding@googlegroups.com
Subject: RE: [MW:23123] Change of
Brand for SAW Consumables




PQRs
are welded to filler metal and flux classifications not
brand
names.

 
From:
materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com]
On Behalf Of Kannayeram Gnanapandithan
Sent: Friday, April 17,
2015 1:16 AM
To: materials-welding
Subject: Re: [MW:23121]
Change of Brand for SAW Consumables
 
No in classicification, only brand name is changed which
is not essential for
no impact requirements. It can be used

On 17-Apr-2015 11:02 am,
<george.dilintas@gr.bureauveritas.com>

wrote:

This
interpretation is too old.
Please refer to the
latest edition of the Code Section IX - QW 404.35

best
regards

Dr. Georgios Dilintas

Authorized Nuclear
Inspector
Authorized Inspector Supervisor

I&F REGIONAL TECHNICAL
MANAGER
BUREAU VERITAS PIRAEUS - GREECE

Tel: +30 210 40 63 113 /4
/5
Fax: +30 210 40 63 118
Cell: +30 69 44 64 62 04


Gurunathan
R ---16/04/2015 17:28:46---Please refer the interpretation
below. Status:
 Currently Valid

From:
Gurunathan R <saneguru@gmail.com>
To:
Materials-Welding
<materials-welding@googlegroups.com>
Date:
16/04/2015
17:28
Subject:
Re:
[MW:23116] Change of Brand for SAW Consumables
Sent
by: materials-welding@googlegroups.com







Please refer the interpretation
below.


Status:  Currently Valid
Other
Links:
________________________________________________________________________________

  
Interpretation:    IX-83-169
Subject: Section IX,
QW-404.9
Date Issued: May 14, 1985
File: BC85-089

Question: For
submerged-arc welding, can a fabricator use a different
brand of flux than that
specified in a wire-flux classification for which he is
qualified, without
performing a new PQR?

Reply: No.


Best
Regards,
Gurunathan.R

On Wed, Apr 15, 2015 at 5:22 PM, Mhaskar Aly
<mhaskar.aly@gmail.com>
wrote:

Dear All,
We have PQR of
following details:
 
Process SAW with Filler
Wire EM12K (ESAB) with
Flux F7A8 (ESAB OK 10.62 Flux)
 
Question:
1.      
Can we
use Filler Wire EM12K (Bohler) with Flux F7A8 (ESAB OK 10.62

Flux)
2.      
Can we
use Filler Wire EM12K (Bohler) with Flux F7A8 (Bohler
Flux)
 
Kindly advise as per ASME Sec
IX…with
reference.
 
Thanks in advance
 
Thanks
& regards
 

Ali
Mhaskar,
QA/QC
Manager
Velath
Engineering International FZC;
Hamriyah
FreeZone Sharjah, UAE;
* P.O
Box 6268 – Sharjah UAE.
(Phone:
00971-6-526 9269, 526 9185, 526 9119 Ext-212
ÈMobile
no.: 00971-55 265
3598 ÊFax
no. 00971-6-526
9393 
üwww.velath.com
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