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- since 1996 -
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Technical Discussions
fabio mussa
Engineering,
SAIPEM SpA, Italy, Joined Dec 2002, 9

fabio mussa

Engineering,
SAIPEM SpA,
Italy,
Joined Dec 2002
9
06:55 Jun-22-2005
Long Range UT on stainless steel pipe

Is Long Range UT inspection able to detect corrosion on austenitic stainless steel or duplex, seamless pipe (max thk 30 mm nominal OD up to 10 inches)?
If yes, what are the limitations?

Thank you in advance

fabio mussa


 
 Reply 
 
Godfrey Hands
Consultant,
PRI Nadcap, United Kingdom, Joined Nov 1998, 306

Godfrey Hands

Consultant,
PRI Nadcap,
United Kingdom,
Joined Nov 1998
306
05:14 Jun-23-2005
Re: Long Range UT on stainless steel pipe
----------- Start Original Message -----------
: Is Long Range UT inspection able to detect corrosion on austenitic stainless steel or duplex, seamless pipe (max thk 30 mm nominal OD up to 10 inches)?
: If yes, what are the limitations?
: Thank you in advance
: fabio mussa
------------ End Original Message ------------


Dear Fabio,
Long Range Ultrasonic (or Guided Waves) are certainly able to test on Duplex and Stainless Steel piping.
The Ultrasonic frequency used is low enough that attenuation in Stainless Steel is not significant. Also, the sound energy will transfer form one meduim to the other when you have Duplex tube.

NDT Consultants in the UK may be able to help you.

Regards,

Godfrey Hands
NDT Consultants
Godfrey@ndt-consultants.co.uk



 
 Reply 
 
N.Arunachalam
N.Arunachalam
07:19 Jul-29-2005
Re: Long Range UT on stainless steel pipe
----------- Start Original Message -----------
: Is Long Range UT inspection able to detect corrosion on austenitic stainless steel or duplex, seamless pipe (max thk 30 mm nominal OD up to 10 inches)?
: If yes, what are the limitations?
: Thank you in advance
: fabio mussa
------------ End Original Message ------------

LRUT does work with stainless steel and duplex SS material,( we have to use different mode of waves, like lateral or torsional) but the result is based on the type of defect looking for, It is good for localised pitting corrosion,Root erosion, or crivice corosion not fit for general corrosion or Intergranular corrosion.

We (IRS -singapore)provide the LRUT services, please contact for your requirements at arun@irs-inspection.com,



 
 Reply 
 
Debprasad Pramanik
Debprasad Pramanik
12:19 Oct-11-2011
Re: Long Range UT on stainless steel pipe
In Reply to fabio mussa at 06:55 Jun-22-2005 (Opening).

Is it Possible to find corrosion on pipe where it is on support ie, on support location by Long Range UT?

 
 Reply 
 

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