RE: [MW:27132] P11 material Welding

The range of composition, as per SFA 5.28 is as below. This is the requirement for deposited weld metal.

The reasons for overshooting these limits could be due to:

·         Problem with formulation with a specific batch. If so a SFA 5.28  test pad should be prepared , composition re-verified and anomalies should be brought to the attention of the consumable manufacturer.

·         Check the calibration & accuracy  of the PMI equipment. It needs to be verified on the calibration blocks supplied with the equipment

·         If PMI results  are of doubt change the equipment or the  technique.

·         For the 2^nd case as above  a change from XRF to OES may be of help.

 

Thanks.

 

P.Goswami.P.Eng, IWE.

Welding & Metallurgical Specialist

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

Email:pgoswami@quickclic.net,pradip.goswami@gmail.com

 

 

From: 'james gerald' via Materials & Welding [mailto:materials-welding@googlegroups.com]
Sent: December 5, 2017 11:48 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:27130] P11 material Welding

 

Many be depends on the Accuracy of PMI Testing Machine.

 

Normally most specification requires PMI verification only for high Alloy. 

 

Thanks & Regards

J.Gerald Jayakumar

0091-9344954677

 

 

On Wednesday, December 6, 2017, 6:27:09 AM GMT+4, zubair <zubair.me@gmail.com> wrote:

 

 

Dear all,

 

 

Please note , I need help when weld P11 material with filler wire ER80S-B2 after check PMI Cr. Content is more then 2 % in weld deposit area , As per Requirement Only need Cr. % is below 2%,

 

Process(TIG) , Base metal ,heat control , filler wire everything is excellent.

 

Someone have idea why this problem occurred  ??

 

 

Thanking you very much in advance

 

Regards

Zubair

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