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- since 1996 -
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Technical Discussions
jomy
jomy
15:30 Aug-01-2011
NEW NDT METHODS FOR PIPING TANK AND VESSEL CORROSION INSPECTION

I Want to know the latest technology which using to find corrosion of pipe, tanks and vessel

    
 
 Reply 
 
GOWRISANTHOSH
NDT Inspector,
Royscan engineering pte ltd, Singapore, Joined May 2008, 52

GOWRISANTHOSH

NDT Inspector,
Royscan engineering pte ltd,
Singapore,
Joined May 2008
52
10:25 Aug-03-2011
Re: NEW NDT METHODS FOR PIPING TANK AND VESSEL CORROSION INSPECTION
In Reply to jomy at 15:30 Aug-01-2011 (Opening).

hi
Guided wave and Long range ultrasonic screenings are the recent NDT methods in pipe corrosion inspections.
regards
Gowrisanthosh Palika

    
 
 Reply 
 
Charles Perrie
Charles Perrie
08:51 Aug-11-2011
Re: NEW NDT METHODS FOR PIPING TANK AND VESSEL CORROSION INSPECTION
In Reply to GOWRISANTHOSH at 10:25 Aug-03-2011 .

The most reliable corrosion inspection method is ultrasonic measurement, and it is quantitative. But for isolated and random corrosion internally this method can easily miss significant corrosion. So in our experience the combination of a reliable screening technique (semi-quantitative) combined with ultrasonic evaluation (quantitative) and the best screening technology is SLOFEC...combination of electromagnetic and eddy current technology. SLOFEC is very effective for the detection of internal corrosion, and to focus the UT measurements.

    
 
 Reply 
 
Borja
Director
Innerspec Technologies, USA, Joined Jun 2002, 36

Borja

Director
Innerspec Technologies,
USA,
Joined Jun 2002
36
21:51 Aug-11-2011
Re: NEW NDT METHODS FOR PIPING TANK AND VESSEL CORROSION INSPECTION
In Reply to jomy at 15:30 Aug-01-2011 (Opening).

Pitch-Catch guided waves using two EMAT sensors is a very good alternative. The sensors are positioned straddling the pipe (or on a tank) and scan the pipe along its axis measuring changes in amplitude and TOF caused by corrosion or other defects. It permits inspection under supports without having direct access to the pipe. The advantage over LRUT is that it can use much higher frequencies and provide better resolution and sensitivity (x10 in some cases). Innerspec Technologies provides service with this equipment worldwide.

    
 
 Reply 
 
Jimmy
Director
Specialized NDT Services, India, Joined Dec 2010, 2

Jimmy

Director
Specialized NDT Services,
India,
Joined Dec 2010
2
07:08 Aug-14-2011
Re: NEW NDT METHODS FOR PIPING TANK AND VESSEL CORROSION INSPECTION
In Reply to jomy at 15:30 Aug-01-2011 (Opening).

Jomy,

for piping you can use LRUT, MFL or EMAT. for tanks and vessels acoustic emission, C scan or MFL Crawlers.

    
 
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