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Re: [MW:22310] Compare Argon with Nitrogen as Purging gas for Super duplex stainless steels

By Materials & Welding
Dear Naasief,
he has already given, 98% ARGON, 2% NITROGEN.
Thanks and Best Regards,
K.Rajagopal
On Thu, Nov 20, 2014 at 1:32 PM, Naasief Navsa <NNavsa@flexonics.co.za> wrote:

Hi Ahmed,

 

Thank you (Shukran) for the valuable information. One more question, this mix of argon and nitrogen, what ratio's would be optimum.

 

We are Tig welding material that is 0.15mm thick. We typically weld with about 18A, and a linear speed of 50mm/sec. At this point in time we are purging with 100% Argon.

 

Regards,

 

Naasief

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Ahmad el-sharkawy
Sent: 20 November 2014 09:21 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:22304] Compare Argon with Nitrogen as Purging gas for Super duplex stainless steels

 



On Wed, Nov 19, 2014 at 11:13 PM, Ahmad el-sharkawy <ahmad.sharkawy88@gmail.com> wrote:

dear Noe Mota mixture of argon and nitrogen is the best gas purging for welding duplex and super duplex stainless steel


 

 







On Wed, Nov 19, 2014 at 10:34 PM, Ahmad el-sharkawy <ahmad.sharkawy88@gmail.com> wrote:

dear Naasief Navsa use mix of argon and nitrogen and use low heat input.

 




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WITH MY BEST WISHES

AHMED ELSHARKAWY
QA/QC ENGINEER
DIPLOMA DEGREE IN WELDING ENGINEERING.
CERTIFIED WELDING INSPECTOR " CWI " 14072901.
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PREPARING MASTER DEGREE IN WELDING ENGINEERING.




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WITH MY BEST WISHES

AHMED ELSHARKAWY
QA/QC ENGINEER
DIPLOMA DEGREE IN WELDING ENGINEERING.
CERTIFIED WELDING INSPECTOR " CWI " 14072901.
ASNT LEVEL II " RT&VT&UT&PT&MT"
IRECA CERTIFIED LEAD EDITOR ISO 9001/2008.

PREPARING MASTER DEGREE IN WELDING ENGINEERING.

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