Re: [MW:34651] Filler

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 <gerry_tup@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

On Sunday, 26 November, 2023 at 05:02:40 pm IST, Vinoth Rajendran <rajvinoth1987@gmail.com> wrote:

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

On Sun, Nov 26, 2023, 16:45 <amitk@talakeel.com> wrote:

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.

 

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of Kannayeram Gnanapandithan
Sent: Friday, November 24, 2023 7:46 PM
To: materials-welding <materials-welding@googlegroups.com>
Subject: Re: [MW:34646] Filler

 

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 <elayaraja1312@gmail.com> wrote:

Dear All.

 

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

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