Re: [MW:18306] High Ferrite No.

Hi 

It appears that there is some mix up of welding consumables like ER316L.

Please check the welding consumables issue slip and find out whether there was any mixup.

Rectification is to remove the defective areas by grinding and reweld as per WPS.

Regards

Prem Nautiyal

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From: Harikrishnan N S <hari.qaqc@gmail.com>
To: materials-welding@googlegroups.com
Sent: Tuesday, July 30, 2013 9:17 AM
Subject: [MW:18292] High Ferrite No.

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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