Re: [MW:27275] PQR PMI - Fe value

Hi,

   Please consider testing Fe using OES, as PMI values are not reliable for pass/fail criteria.

Thanks & Regards,
Harish

On Jan 22, 2018 08:57, "Mohamed Ali" <marb8389@gmail.com> wrote:

Dear Experts 

can you advise me for the below clarifications,

We have Done the PQR as mentioned below material and after PQR the test piece measured the PMI value and all chemical composition are meet the Sec-2 C requirement except Fe value, please explain why it is happen and provide some technical data.

Base metal  - ASTM A312 TP 304L to ASTM A312 TP 304L

Electrode :  - ER NiCr-3

SFA 5.14 - Actual Fe - 3% Max  & measured value - 8.83%

Best Regards,

Mohamed Ali.

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