Re: [MW:16551] Using of ER70S-6 in place of ER70S-2

For TIG process it is accetable but not for GMAW process. Pl
understand the logic behind it which i have already explained

Pandithan
Welding Consultant

On 1/17/13, Dindo <dindodelacruz@gmail.com> wrote:
> I don not know where this is coming from, but here in our shop we have been
> using ER70s-2 in spool form for GMAW welding.
>
>
>
>
> On Wed, Jan 16, 2013 at 7:50 AM, kannayeram gnanapandithan <
> kgpandithan@gmail.com> wrote:
>
>> As per code, Minimum tensile value is 70000psi. It is not as stated in
>> the trailing mail. I do not think that ER70S2 is available in spool
>> and hope that manufacturer of welding consumable who are in this forum
>> may give their comments pl
>> Pandithan
>> Welding consultant
>>
>>
>> On 1/12/13, nithindsilva4u@gmail.com <nithindsilva4u@gmail.com> wrote:
>> > Hi,
>> >
>> > ER70S-6 has a higher mangnaese and silicon content giving this rod
>> > better
>> > tensile strength and smoother running characteristics then ER70S-2.
>> Tensile
>> > strength is up to 88,000 psi. ER70S-2 is a triple deoxidized mild steel
>> rod
>> > which will give quality welds on most grades of steel. Tensile strength
>> if
>> > 77,000 psi. Both are available in rod (GTAW) as well as spool form
>> (GMAW).
>> > With respect to ASME Section IX, when using in place ER 70S-2, b sure u
>> > r
>> > checking the A No. of ER 70S-6, as sometimes the chemical composition
>> > varies. if its matching then you can use.
>> > --
>> > regards,
>> > Dsilva
>> >
>> > Sent from my iPhone
>> >
>> > On Jan 11, 2013, at 9:17, kannayeram gnanapandithan <
>> kgpandithan@gmail.com>
>> > wrote:
>> >
>> >> Can be used provided if it is available in rod for TIG process.
>> >>
>> >> Generally ER70S2 comes in rod form for TIG welding not in spool form
>> >> for
>> >> GMAW process because in GMAW process, Titanium gets oxidided in arc
>> itself
>> >> and purpose of Ti adding is lost, so it is not at all used in GMAW
>> >> process.
>> >>
>> >> ER70S6 comes generally in spool forms for GMAW process and if it comes
>> in
>> >> rod, it can be used in TIG process
>> >>
>> >> Pandithan
>> >> Welding Consultant
>> >>
>> >> On Thu, Jan 10, 2013 at 7:48 PM, c sridhar <sridhar305@yahoo.com>
>> wrote:
>> >>> Mr. Chakraborthy,
>> >>>
>> >>> You have not given the process details. Is it MIG or TIG process.
>> >>>
>> >>> In general:
>> >>>
>> >>> For TIG process, we use ER 70S-2 for CS welding. The shielding gas
>> >>> used
>> >>> will be Argon. Radio graphic
>> >>> quality is assured due to addition of Ti, Zn & Al which removes
>> >>> Oxygen
>> >>> by forming faster oxides with it
>> >>> along with Mn.& C. ER 70S-6 is available in spool form ( 15 kg or
>> >>> so)
>> >>> and not used for TIG process as it
>> >>> can not provide X-ray quality welds
>> >>>
>> >>> For MIG process, ER 70S-6 is generally used with Carbon-DI-oxide as
>> >>> shielding gas. ER 70S-6 has
>> >>> excessive Mn & Si (1.85 & 1.15 % respectively) compared to 1,4 &
>> >>> 0.7
>> %
>> >>> in ER 70S-2 filler wire,
>> >>> Additional Mn, & Si will remove oxides form CO2 gas to give good weld
>> >>> quality, but consistency to
>> >>> provide x-ray quality is a question mark. ER 70S-2 could also be used
>> >>> but, only with Argon gas.
>> >>>
>> >>> Sridhar.om: Ranendra Chakraborty <ranendrac6@gmail.com>
>> >>> To: materials-welding@googlegroups.com
>> >>> Sent: Thursday, 10 January 2013 12:13 PM
>> >>> Subject: [MW:16480] Using of ER70S-6 in place of ER70S-2
>> >>>
>> >>> 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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