Re: [MW:18300] High Ferrite No.

Hi
My reply is not a direct answer to the query . However I would like to add that I have welded with 316 L and at weld metal got a FNo from 4 to 8. But the base metal too was ss316.

Thanks
Rgds
Rudolf

Sent from my iPhone

On 30 Jul, 2013, at 3:51 PM, Ramin Kondori <raminkondori@gmail.com> wrote:

> It seems that welder has used 316 filler metal
>
> On 7/30/13, Harikrishnan N S <hari.qaqc@gmail.com> wrote:
>> Dear Experts
>>
>> Recently I came across an issue of High Ferrite no. in the weld metal.
>>
>> Parent Metal : A 304L
>> Weld Metal : 308L
>> Welding Process : GTAW
>>
>> The affected area is only a quarter portion (3'o clock to 6'o clock
>> position) of the 30" pipe where ferrite no has been observed as over 21 FN.
>>
>> and PMI has shown 1.57% of Mo.
>>
>> Please give your valuable comments and rectification measures for this.
>> Refer the attached photos for clarity.
>>
>> Thanks and Regards
>> Harikrishnan
>>
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> --
> *Ramin Kondori*
> *Sr. QA/QC Engineer
> *
> *SINOPEC*
>
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