[MW:1827] Re: 1814] Re: RT of Duplex Stainless Steel

Hi,

 

By using Type-I films, which has slow speed, very high contrast, & very fine grain, using films Kodak M, TMX, T, Agfa D2, D4, Fuji 50, you may try!!!

 

Regards,

Ari

 

 

On 3/27/09, ndion@acuren.com <ndion@acuren.com> wrote:

You should do UT to confirm the indication

Sent from my Verizon Wireless BlackBerry

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From: ndion@Acuren.com
Date: Fri, 27 Mar 2009 10:57:22 +0000
To: <materials-welding@googlegroups.com>
Subject: [MW:1822] Re: 1814] Re: RT of Duplex Stainless Steel

There are only three things that will cause white indications, tungsten in the weld, contaminated flux or excessive filler material.

Sent from my Verizon Wireless BlackBerry

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From: "Chaitanya Purohit"
Date: Fri, 27 Mar 2009 15:11:21 +0800
To: <materials-welding@googlegroups.com>
Subject: [MW:1820] RE: 1814] Re: RT of Duplex Stainless Steel

Dear (ndion),

 

Thickness : 20mm

 

Method : X- ray

 

Film      : Class 2

 

Screen used : 0.125mm Pb

 

Regards.

 

C. K. Purohit

General Manager - QC

KNM Process Systems Sdn Bhd - Malaysia

 

HP No. : 6016-3376448

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of ndion@Acuren.com
Sent: Friday, March 27, 2009 11:13 AM
To: materials-welding@googlegroups.com
Subject: [MW:1814] Re: RT of Duplex Stainless Steel

 

How thick is the duplex, what film are they using and what source

Sent from my Verizon Wireless BlackBerry

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From: "Chaitanya Purohit"
Date: Fri, 27 Mar 2009 11:03:30 +0800
To: <materials-welding@googlegroups.com>
Subject: [MW:1813] RT of Duplex Stainless Steel

Dear All,

 

I am facing problem during NDT (RT) of Duplex St.Steel) . The RT film shows 4-5" long white indication in the weld area. We tried changing the screen but still the same things appear on the film.

 

The welds are welded with SAW process. Generally the porosities are expected if we use SAW welding for Duplex but this indications are strange for me. Does anybody have experienced the same ?

 

Regards.

 

C. K. Purohit

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