Filler

[Elayaraja Thangarasu]

Dear All.

 What is the difference E71T-1C and E71T-1M.

[Kannayeram Gnanapandithan]

both are except usage of shielding gas. C- For 100%CO2. M- Mixed gas. example Argon plus Co2 etc

On Fri, Nov 24, 2023, 9:16 PM Elayaraja Thangarasu <elayar...@gmail.com> wrote:

Dear All.

 What is the difference E71T-1C and E71T-1M.

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[am...@talakeel.com]

E71T stands for flux core wire or tubular electrodes as per AWS. C stands for carbon dioxide as shielding gas and M stands for Argon+CO2 as shielding gas general (70+30)% or (75+25)% respectively.

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[Elayaraja Thangarasu]

Dear Sir,

   While welding E71T-1C using Agron+CO2 gas any problem.

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[Vinoth Rajendran]

Hi team,

If using E71T-1C, pls go with 100% CO2 only if you won't need to meet any physical properties,

 if using E71T-1M, pls go with Mixture Argon + CO2 (Ar. 80%+CO2 20%) or (Ar. 98%+O2 2%) only if you want to meet physical properties...

Thanks 

Vinoth. R

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[james gerald]

Just to add. You need to Qualify a new PQR for change in shielding gas composition as per ASME Sec.IX

Thanks & Regards

J.Gerald Jayakumar

On Monday, 27 November, 2023 at 03:57:37 pm IST, james gerald <gerr...@yahoo.com> wrote:

E71T-1C & E71T-1M  have the same chemical composition and Mechanical and the point to consider when using CO2 0r Ar-CO2 mixture is to ensure that the mechanical properties are verified by using the same shielding Gas combination in the consumable certificate which will be available with consumable supplier for the required Lot Number.

Some snap shots of ASME Sec.IIC below.

Thanks & Regards

J.Gerald Jayakumar

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[james gerald]

E71T-1C & E71T-1M  have the same chemical composition and Mechanical and the point to consider when using CO2 0r Ar-CO2 mixture is to ensure that the mechanical properties are verified by using the same shielding Gas combination in the consumable certificate which will be available with consumable supplier for the required Lot Number.

Some snap shots of ASME Sec.IIC below.

Thanks & Regards

J.Gerald Jayakumar

On Sunday, 26 November, 2023 at 05:02:40 pm IST, Vinoth Rajendran <rajvin...@gmail.com> wrote:

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