Re: [MW:23109] Normal duplex and super duplex

You weld needs to cool slower to give time for ferrite to develop. Could you send me the process parameters?

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From: Pravin G Sent: Τετάρτη, 15 Απριλίου 2015 - 17:18 To: materials-welding@googlegroups.com Reply To: materials-welding@googlegroups.com Subject: Re: [MW:23104] Normal duplex and super duplex

Dear Sir,

Our requirement for FN is 35-65, however we are getting exactly 35 which is border line for several test which is unacceptable by the client.

Kindly advice with your expertise.

Pravin Poornachandran

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On 15 Apr 2015, at 15:22, george.dilintas@gr.bureauveritas.com wrote:

You are getting low or high ferrite?

best regards

Dr. Georgios Dilintas

Authorized Nuclear Inspector
Authorized Inspector Supervisor

I&F REGIONAL TECHNICAL MANAGER
BUREAU VERITAS PIRAEUS - GREECE

Tel: +30 210 40 63 113 /4 /5
Fax: +30 210 40 63 118
Cell: +30 69 44 64 62 04


<graycol.gif>Pravin G ---15/04/2015 06:29:23---Dear expert, I'm having to weld normal duplex plate for vessel, SMAW process with following requirem

From: Pravin G <htcispravin@gmail.com>
To: materials-welding@googlegroups.com
Date: 15/04/2015 06:29
Subject: [MW:23095] Normal duplex and super duplex
Sent by: materials-welding@googlegroups.com

---

Dear expert,

I'm having to weld normal duplex plate for vessel, SMAW process with following requirements:

I.v -40degC
FN: 35-65
CPT 22deg C @24 hrs
Corrosion 4g/mm

I'm unable to achieve FN even after several test.

Can anyone guide me how to achieve FN ?

Pravin
Singapore

Sent from my iPhone

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