ER-70S-2 and ER70S-6

[Chaudhary Zafar Iqbal]

Respected Member of this Group ,

As per approved wps ER70S-2 required to use .

Any code restrictions to use ER70S-6 instead of ER-70S-2 ?

Any code restriction and reference to change the WPS ?

Waiting for your valuable comments .

Regards,

Zafar 

00966544639978

[Muhammad Azeem]

Hi Zafar,

As per approved WPS you need to follow the same filler wire or electrode, You can switch for welders within the same F number and can use any filler wire.

For WPS strict to utilized as per Actual PQR.

Regards,

Muhammad Azeem Iqbal

Welding Inspector Aramco Approved

053110-8577/0554453626/0590071467

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[Vishwas Keskar]

Approved WPS means you have to use the consumables as per Approved WPS. - ER70S-2 for production welding. 

If you have to write WPS using the same PQR , you can write WPS with ER70S-6 adding note in WPS that Mn content in wire shall  not exceed 1.6 %.

You can resubmit the above WPS  with ER70S6 and get approval for production  welding use.

Pl check read Customer Specification about consumable use.

Vishwas-IWE

International Welding Engineer

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On 31-Oct-2022, at 8:42 AM, Chaudhary Zafar Iqbal <chzai...@gmail.com> wrote:



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[Kannayeram Gnanapandithan]

no restrictions  but pl verify the BTC for ER 70S-6 chemistry which Mn, Si shall be within A1 maximum limit. (Mn-1,6, Si-0,8)

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[srinivas rao]

code is not restricted  to use these consumables  but WPS shall refer the same consumable which to be used at the time of welding , 

you need to revise this WPS using the same PQR and submit it for client approval before proceeding for welding , u need to mention consumable type which you wants go for 

check client Specification for consumable restrictions against PQR qualified with.

Techinca part :   each consumable has its own advantages but ER70S-6 is better  for strength and impact applications , one  must know that Mn provides better strength and toughness to the weldments. So, any loss of Mn from the weld deposit will actually reduce the strength , more silicon present in ER70S-6 consumable will make a good  weld bead appearance.

Regards, 

Srinivas Rao

Welding Engineer 

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[Kannayeram Gnanapandithan]

unless u verify with BTC or weld metal chemistry ,it is difficult  to decide the A no, because as per sec 2 part C, SFA-5.18, Mn--1.40-1.85 & Si--0.8 -1.15. and as per sec 9, TABLE-QW 442, Mn--1.60max, Si-- 1.00max.  Verify the chemistry and revise the WPS with ER 70-S6

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