RE: [MW:27949] Re: Using of ER70S-6 in place of ER70S-2

Hi Janette,

 

You may look at Sec-II, Pt-C, SFA 5.18, Annex, A-7 for broad descriptions of both type of consumables. ER-70S-6 is more formulated for GMAW, while ER-70S2 is more formulated for GTAW. ER-70S-6 contains more Mn and Si than ER-70S2.

A switch would be possible, when there're no restrictions on the intended services such as :impact(notch toughness) or Environmental Assisted Cracking(EAC)as described in NACE RP-0472.

 

A few tips for wire shortlisting:-

·         Ensure chemical analysis and mechanical properties to SFA 5.18

·         Recheck the above with weld test pads as describes in SFA 5.18, if required.

·         Buy from reputed vendors and or authenticated suppliers.

·         Do not buy in loose packing or cut pieces from coils.

·         Ensure fillers are clean and free from any chemicals & mill rust and are uniformly coated to protect against rusting.

 

Thanks.

 

P.Goswami.P.Eng, IWE.

Welding & Metallurgical Specialist

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

Email:pgoswami@quickclic.net,pradip.goswami@gmail.com

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Pieper QSI
Sent: June 8, 2018 2:57 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:27948] Re: Using of ER70S-6 in place of ER70S-2

 

Most important is what kind of classification / certification is required for the wire and are the by manufacturer specified properties for the wire meeting your project requirements. If during WPQR qualification the requirements also comply with the requirements there is no need to investigate the chemical composition any further as long as the wire is an ER70S-6 wire on the certificate!

Verstuurd vanaf mijn iPhone

Op 7 jun. 2018 om 18:27 heeft Janette M <janettemacias@gmail.com> het volgende geschreven:

Hello,

 

I need help regarding the ER70S-6 mig welding wire. I am currently comparing mill certs from different vendors and not sure which one is the best in terms of quality. Is there anything in particular I should be looking for?

 

Any help would be greatly appreciated!

 

 

On Tuesday, September 20, 2016 at 6:50:21 AM UTC-5, Diganta Sarma wrote:

Ti and Al are added to act as additional deoxidizers to cleanse the weld of impurities. In the case of MAG welding, additional Ti and Al into the standard ER70S-6 isn't mandated. In case you need them in the weld pool, consider changing the transfer mode to spray or rotating arc or pulsed mode. Some of these will require change of gas to a Argon based mixture

 

Many thanks!

Sent from my iPhone

On 20 Sep 2016, at 7:43 PM, sanjeev singh <sanjeev...@gmail.com> wrote:

in ER70S6 we have added Ti- 0.011% and Al - 0.012%. We are facing spattering issue in MAG-CO2 .

Is Ti and Al reason for spattering?

 

Sanjeev 

On Saturday, 17 September 2016 17:39:35 UTC+5:30, sridhar wrote:

You have not mentioned the welding process in use at your end

 

If it is TIG, flat no. as 70 S2 contains triple deoxidisers Al, ZN & Ti and used with argon gas.

ER 70S06 does not have them and will not give x-ray quality welds.

 

If it is MAG/CO2 process or with argon gas, you can go ahead. 

 

Ti addition alone with 70 S6 do not help. S6 also contains excessive Mn & Si and not used for 

TIG process.

 

Sridhar.

---

From: sanjeev singh <sanjeev...@gmail.com>
To: Materials & Welding <material...@googlegroups.com>
Sent: Thursday, 15 September 2016 11:40 AM
Subject: [MW:25396] Re: Using of ER70S-6 in place of ER70S-2

 

Please guide- If we add Ti in ER70S-6 in range of 0.011%, what will be the effect during CO2 welding?

 

regards,

 

Sanjeev

On Thursday, 10 January 2013 12:13:36 UTC+5:30, Ranendra Chakraborty wrote:

Dear Expert,

Please guide whether ER70S-6 can be used in place of ER70S-2. Please give code reference.

 

Regards,

Ranendra

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