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.
Sent from my iPhone
Kindly advice with your expertise.
Pravin Poornachandran
--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
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<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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