Friday, March 27, 2009

[MW:1823] Re: 1814] Re: RT of Duplex Stainless Steel

Dear
       C.K.P
 
     If this black & white indicatios are cont...You may minimise this white patched by using higher energy x rays.
 
  Best Regards.
 
  D J Arvadia...

--- On Fri, 27/3/09, ndion@Acuren.com <ndion@Acuren.com> wrote:

From: ndion@Acuren.com <ndion@Acuren.com>
Subject: [MW:1822] Re: 1814] Re: RT of Duplex Stainless Steel
To: materials-welding@googlegroups.com
Date: Friday, 27 March, 2009, 4:27 PM

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
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

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

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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