Re: [MW:22927] FCAW Process Filler wire E71T-1C does this come under low hydrogen electrode category?

Dear Mr.Muni,

Please kindly provide code reference...

 

Thank you.

On Mon, Mar 2, 2015 at 12:08 PM, C.Muni <cmkfc07@gmail.com> wrote:

Dear PKM,

Its not coming under Low Hydrogen Electrode category.

Regards,

 Muniyandi Chithiran MBA.,MIIF,

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On Mon, Mar 2, 2015 at 1:29 PM, PK M <pkmqaqc@gmail.com> wrote:

Dear Sir,

 

Good day,

FCAW Process Filler wire E71T-1C does this come under low hydrogen electrode category?

 

ASME Sec IIC-SFA 5.20

 

A8.2.4 Most flux cored electrodes deposit weld metal having diffusible hydrogen levels of less than 16 mL/100 g of deposited metal. For that reason, flux cored electrodes are generally considered to be low hydrogen. However, some commercially available products will, under certain conditions, produce weld metal with diffusible hydrogen levels in excess of 16 mL/100 g of deposited metal. Therefore it may be appropriate for certain applications to utilize the optional supplemental designators for diffusible hydrogen when specifying the flux cored electrodes to be used.

 

Question no -01

 

In the engineering drawing for welding the anchor chair of atmospheric storage tank in the field, it is specified to "Weld with low hydrogen electrode".

 

Can we weld with FCAW process using E71T-1C filler wire, ASME Sec IIC-SFA 5.20 for above mentioned application? The EN10204 3.1 certificate for the filler wire shows hydrogen test results performed on the deposited weld metal, a maximum of 3.0 ml/100g.

 

Question no -02

 

Is there any difference between "low hydrogen weld deposit" and "low hydrogen electrode" in the light of ASME Code?

 

 Note:-

Also Find attached files..

 

 

Please kindly provide code reference...

 

Thank you.

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