Monday, February 14, 2011

RE: [MW:9865] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW

Dear Abhay,
 
You can also try ER 70S6, this filler wire has got good amount of Mn for better low temp. toughness and most of the time impact tested at -50 Deg.C, you need to ask your supplier for specific batch where it has been impact tested to -50 Deg.C.
 
ER 80SNi1 will give you guranteed values, but if your service is sour you need to make sure that the maximum Ni content doesnt exceed 1.0%.
 
More over, It is recommended you use a full GTAW for welding 2" x 5.54mm pipe instead of combination process (GTAW + SMAW) and most international client specs. recommeds the same.
 
Regards,
 
Praveen

--- On Mon, 2/14/11, james gerald <gerry_tup@yahoo.com> wrote:

From: james gerald <gerry_tup@yahoo.com>
Subject: RE: [MW:9864] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW
To: materials-welding@googlegroups.com
Date: Monday, February 14, 2011, 11:08 AM

Abhay,
 
It depends on your MDMT(Minimum Design Metal Temperature). I suppose ER70S-2 is suitable for use only upto MDMT of -30degC.
 
These details can be obtained from ASME Sec.IIC
 
SFA 5.18 for ER70S2  &
SFA 5.28 for ER 80SNi-1
 
Check the above sections in ASME Sec.IIC
 
J.GERALD JAYAKUMAR
00919344954677
 


--- On Mon, 2/14/11, Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com> wrote:

From: Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com>
Subject: RE: [MW:9863] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW
To: materials-welding@googlegroups.com
Date: Monday, February 14, 2011, 5:28 AM

Dear Sir,

Many thanks for your information.

For SMAW, have selected the same but for GTAW we are using ER 70S2. Is it right?

Also request you to inform from where I can select the same, as have gone through the ASME sec 2 Part c but not able to succeed.

 

Thanks.

 

Regards,

Abhay

Ext 448

M +91 9898031162

 

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of james gerald
Sent: Monday, February 14, 2011 10:47 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:9861] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW

 

GTAW - ER80SNi1

SMAW - E7018-1

 

The above can be used to weld A333 Gr.6 Pipe upto MDMT of -45degC

J.GERALD JAYAKUMAR

00919344954677

 



--- On Mon, 2/14/11, Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com> wrote:


From: Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com>
Subject: [MW:9855] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW
To: materials-welding@googlegroups.com
Date: Monday, February 14, 2011, 3:57 AM

Dear Sirs,

Pl advise how can select the electrodes for SA 333 Gr 6 (P1 and G1) low temp pipe.

I want to prepare WPS / PQR and then also WPQ for our current project.

Have selected the thickness around 5.55 mm (2 "S 80 pipe) for preparing WPS.

 

We followed the process of root run by GTAW and then by SMAW.

 

Regards,

Abhay

Ext 448

 

IMPORTANT NOTICE:
This email may be confidential, may be legally privileged, and is for the intended recipient only. Unauthorized access, disclosure, copying, distribution, or reliance on any of it by anyone else is prohibited and may be a criminal offense. Please delete if obtained in error and email confirmation to the sender.


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