Wednesday, September 18, 2013

Re: [MW:18690] Multiple process GTAW+SMAW Process,

If you want to involve only SMAW then E-6010 is the only option for the root pass.
For filling you could continue with E-7018

    best regards

    Dr. Georgios Dilintas

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rudolf saldanha ---17/09/2013 10:30:00---hI, Saravanan,  

From: rudolf saldanha <rudolf_jude@yahoo.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Date: 17/09/2013 10:30
Subject: Re: [MW:18673] Multiple process GTAW+SMAW Process,
Sent by: materials-welding@googlegroups.com




hI, Saravanan,
 
May I know if it is mandatory by code that back gouging has to be done when we have a Full Penetration Joint using only SMAW process.
As far as I know, backing and back gouging are supplementary essentials for SMAW process.
 
To get a full penetration it is not compulsory to go for GTAW + SMAW process, but we can still do it with SMAW only.
 
We can use LB52U which also belongs to SFA 5.1 just as E7018, and it is commonly used for welding on pipelines where welding is done on one side.
 
http://www.weldingsupply.com.au/index.php/kobe-lb52u-low-hydrogen.html
 
The above link may be of help.
 
Please correct me if I am wrong.
 
Thanks and regards
Rudolf
 
 
 

From: Saravanan Sornam <saravanshyla@gmail.com>
To:
 materials-welding@googlegroups.com
Sent:
 Tuesday, 17 September 2013, 14:05
Subject:
 Re: [MW:18670] Multiple process GTAW+SMAW Process,

Hi San ,

I said that , only SMAW on the Inaccessible Pipe size, for example 6 ", cannot be welded and even you cannot get Full Penetration using E7018 only on Single V Bevel.

It should be welded only by using GTAW for Root and subsequent welds by SMAW until Cap.

Regards,
Saravanan,
Korea


On Mon, Sep 16, 2013 at 7:32 PM, jaffar ali riyas mohamed nizamin <jaffarqc1987@gmail.com> wrote:
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