Re: [MW:22960] difference between ER70 S-6 and ER70 S-3

It's Better to use ER70S-6 instead of ER70S-3 as both of in the same F no.
If you compare both MTC of the filler wire, you can find better impact properties in ER70S-6.

On Mar 9, 2015 6:07 PM, "'raouf salhi' via Materials & Welding" <materials-welding@googlegroups.com> wrote:

Dear expert ;

we have  to weld an ammonia liquid line ( temperature of service -33 °c) with ER 70 S-3 for penetration and E 7018 for filling and cap .

Our client ask to weld with ER 70 S - 6 because of better impact test proprities.

THis is true ?? please give me more details

Regards

 

SALHI Raouf

QA/QC Engineer

Tel: Morocco +212628979891

      Tunisia +21621458258

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