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Iris Inspection Services, Inc.
We are the world's largest supplier of air cooler, boiler and exchanger tubing inspection services.
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Technical Discussions
Varayuth Saksri
, NDT.Operation Manager
DNT Inspection Service Co.,LTd., Thailand, Joined Feb 2008, 4

Varayuth Saksri

, NDT.Operation Manager
DNT Inspection Service Co.,LTd.,
Thailand,
Joined Feb 2008
4
05:39 Mar-13-2008
UT.Longitudinal seam weld.

How can we UT on pipe 25.4 od x 2.11 min.wall x 4877 L ?


 
 Reply 
 
Ed Ginzel
R & D, -
Materials Research Institute, Canada, Joined Nov 1998, 1282

Ed Ginzel

R & D, -
Materials Research Institute,
Canada,
Joined Nov 1998
1282
01:57 Mar-13-2008
Re: UT.Longitudinal seam weld.
More information is required!
Is this a Code regulated application?
Is this really a long seam weld inspection or full body?
If Welded (ERW?) is the pipe in the pipe mill or in the field?
Regards
Ed
----------- Start Original Message -----------
: How can we UT on pipe 25.4 od x 2.11 min.wall x 4877 L ?
------------ End Original Message ------------




 
 Reply 
 
Varayuth Saksri
, NDT.Operation Manager
DNT Inspection Service Co.,LTd., Thailand, Joined Feb 2008, 4

Varayuth Saksri

, NDT.Operation Manager
DNT Inspection Service Co.,LTd.,
Thailand,
Joined Feb 2008
4
02:20 Mar-13-2008
Re: UT.Longitudinal seam weld.
Dear Ed,

- A code is ASTM E213-04
- UT inspection only Long seam weld.
- Yes, welding process is ERW, the pipe is in the field.
- Can we use Pluse echo technique with contact technique ?
Thank you.

----------- Start Original Message -----------
: More information is required!
: Is this a Code regulated application?
: Is this really a long seam weld inspection or full body?
: If Welded (ERW?) is the pipe in the pipe mill or in the field?
: Regards
: Ed
: : How can we UT on pipe 25.4 od x 2.11 min.wall x 4877 L ?
------------ End Original Message ------------




 
 Reply 
 
bob sudharmin
Engineering, Reliability and Integrity Eng
Shell Malaysia Trading, Malaysia, Joined Jan 2008, 54

bob sudharmin

Engineering, Reliability and Integrity Eng
Shell Malaysia Trading,
Malaysia,
Joined Jan 2008
54
05:48 Mar-13-2008
Re: UT.Longitudinal seam weld.
Not quite clear on the query. But UT on this kind of size and length should be IRIS (Internal Rotating Inspection System) for 100% coverage

----------- Start Original Message -----------
: How can we UT on pipe 25.4 od x 2.11 min.wall x 4877 L ?
------------ End Original Message ------------




 
 Reply 
 
siva
siva
06:13 Mar-13-2008
Re: UT.Longitudinal seam weld.
better u can go for RT and finish off, unless u want to go for RD,,,,,
i feel surface wave probes can do this, probe shoe should soot the tube dia to couple UT waves

---------- Start Original Message -----------
: Not quite clear on the query. But UT on this kind of size and length should be IRIS (Internal Rotating Inspection System) for 100% coverage
: : How can we UT on pipe 25.4 od x 2.11 min.wall x 4877 L ?
------------ End Original Message ------------




 
 Reply 
 
Tom Nelligan
Engineering,
retired, USA, Joined Nov 1998, 390

Tom Nelligan

Engineering,
retired,
USA,
Joined Nov 1998
390
08:10 Mar-13-2008
Re: UT.Longitudinal seam weld.
If the interest is in testing the longitudinal seam weld rather than a 100% wall inspection, it could very likely be done as a conventional shear wave immersion test with a single fairly high frequency transducer (probably 10 MHz) and appropriate instrumentation and fixturing. The wall is thin enough that first leg and second leg testing could be done with a single properly aimed beam.

----------- Start Original Message -----------
: Not quite clear on the query. But UT on this kind of size and length should be IRIS (Internal Rotating Inspection System) for 100% coverage
: : How can we UT on pipe 25.4 od x 2.11 min.wall x 4877 L ?
------------ End Original Message ------------




 
 Reply 
 
Ed Ginzel
R & D, -
Materials Research Institute, Canada, Joined Nov 1998, 1282

Ed Ginzel

R & D, -
Materials Research Institute,
Canada,
Joined Nov 1998
1282
09:30 Mar-13-2008
Re: UT.Longitudinal seam weld.
Varayuth:
E213 is a Standard Practice for Metal Pipe and Tubing.
It states that it is for detecting flaws in pipe and tubing when performing a volumetric examination. I suppose it COULD be that welds in the volume could be inspected using the Standard Practice.
Both immersion and contact options are allowed in E213 but all descriptions are for access from the outside (i.e. not IRIS).

As Tom pointed out a higher frequency pulse would be adviseable. But your concern should be for the field conditions. The tubing surface must be absolutely spotless (clean). If these are simply on racks they can be rolled into position but if they are fixed in position you may have more problems figuring out how to mount the probes.

An option that might be suitable is phased array probes. These can be purchased with curvatures that match the pipe. If the pipes were fixed you could probably arrange a small moveable stuffing box with a split phased array probe in it and avoid the need for rotating the probes (or the pipes).

----------- Start Original Message -----------

: Dear Ed,
: - A code is ASTM E213-04
: - UT inspection only Long seam weld.
: - Yes, welding process is ERW, the pipe is in the field.
: - Can we use Pluse echo technique with contact technique ?
: Thank you.
: : More information is required!
: : Is this a Code regulated application?
: : Is this really a long seam weld inspection or full body?
: : If Welded (ERW?) is the pipe in the pipe mill or in the field?
: : Regards
: : Ed
: : : How can we UT on pipe 25.4 od x 2.11 min.wall x 4877 L ?
------------ End Original Message ------------




 
 Reply 
 

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