Re: [MW:20952] C-Mn WPS.ER 70S2 to ER 70S6.

Both belong to SFA 5.18 and has same F & A nos.  

Er 70 S-2  has triple de-oxidizers like Al, Ti, Zn and helps to produce 100 % x-ray quality welds.

Er 70 S-6 is higher with percentage of Mn & Si comparatively, and forms MnO2, SiO2  but, 

consistency in the quality of weld not assured.

So, choice is different and up to u to decide.

C. Sridhar.

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From: S.Mohammed <mohd52100@gmail.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Sent: Sunday, 1 June 2014 12:00 PM
Subject: [MW:20945] C-Mn WPS.ER 70S2 to ER 70S6.

Dear all

Have WPS GTAW.for C-Mn with ER 70S2. %100%Ar.

Can i  used ER70S6 instead of ER70S2.?

Or need qualification? Due to high Mn %.

Regards
Mohd.

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