Re: [MW:21306] Use of Filler Wire E71T-1C for vessel with MDMT -29°C

Hi

 

Due to variation in Charpy V notch Impact values most of client specs. restrict the use of FCAW process in process equipments.

You can check your project specs. and decide.

 

Regards

 

Prem Nautiyal

9769316004

On Tuesday, July 1, 2014 1:30 PM, veera raghava kommisetti <kommisetti@gmail.com> wrote:

No Prohibition for use of FCAW from code.

But many client specification prohibit use of FCAW on Pressure Vessels.

On Tue, Jul 1, 2014 at 7:00 AM, Mhaskar Aly <mhaskar.aly@gmail.com> wrote:

Dear Friends,

 

We have

·         FCAW filler wire E71T-1C (Impact tested @ -20°C as per MTC)

·         Vessel (SA516 Gr 70; MDMT -29°C; Impact test exempted)

 

Can we use this filler wire for welding on above vessel for:

1.       Nozzle to Shell weld

2.       RF Pad to Shell weld

3.       Vessel external Attachments with pad.\

4.       Saddle Pad to Shell weld

 

Kindly provide Code Reference

 

Thanks & regards

 

Ali Mhaskar,

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