where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -
1235 views
Technical Discussions
Lew King
Lew King
08:00 Sep-17-2002
Eddy Current inspection of Derricks

I currently have a client who is wanting to inspect Derrick weldments using Eddy Currents.
Is there an API/ASME standard applicable to this type of work?


 
 Reply 
 
Don
Engineering
Rolls Royce, United Kingdom, Joined Sep 2002, 5

Don

Engineering
Rolls Royce,
United Kingdom,
Joined Sep 2002
5
04:44 Sep-18-2002
Re: Eddy Current inspection of Derricks
: I currently have a client who is wanting to inspect Derrick weldments using Eddy Currents.
: Is there an API/ASME standard applicable to this type of work?
.
The UK standard covering this is BS EN 1711:2000 Non-destructive examination of welds - Eddy current examination of welds by complex plane analysis.
We could carry out this work for you but most likely would not be competitive unless you are based in the UK
Don


 
 Reply 
 
David Hermanutz
Consultant,
Hbndt.com, China, Joined Jul 2012, 85

David Hermanutz

Consultant,
Hbndt.com,
China,
Joined Jul 2012
85
05:05 Oct-04-2002
Re: Eddy Current inspection of Derricks
: : I currently have a client who is wanting to inspect Derrick weldments using Eddy Currents.
: : Is there an API/ASME standard applicable to this type of work?

Most standards and codes are put together long after the technology has become available to market. Unfortunately this often leads to critical errors during the learning curve of users and plant owners who put trust in the technology prematurely. Similar to TOFD work being carried out before the UK and American standards were developed, extensive procedure development and trials were required before TOFD was allowed to substitute existing code endorsed methods of test. I believe this was a 10-15 year evolution from technology to code acceptance.

Eddy Current testing on most legally governed land based plant is allowable only as an addition and not a substituion to prescribed examinations. ( ie. to act as a 100% test to determine areas most suitable for prescribed 10% MT coverage )

I currently have serious reservations about the current endorsement of Eddy Current technology without the relevant engineering and legal support. If the equipment is outside of the legal realm than go for your life.

David Hermanutz


: .
: The UK standard covering this is BS EN 1711:2000 Non-destructive examination of welds - Eddy current examination of welds by complex plane analysis.
: We could carry out this work for you but most likely would not be competitive unless you are based in the UK
: Don
.



 
 Reply 
 
T.Ausland
Consultant
Norway, Joined Mar 2001, 3

T.Ausland

Consultant
Norway,
Joined Mar 2001
3
05:38 Oct-04-2002
Re: Eddy Current inspection of Derricks
: :
Hello!
In Norway Eddy Current has become very standard method for testing structural steel offshore. Derricks as well. In lack of useful acceptance criteria’s for structural and weld applications you have to establish a reasonably reference that you can be sure that the equipment and operator can handle. Depending on the equipment, probe, operator, geometry, coating make a reference block with detectable defect sizes under normal/or actual working conditions. If the client accept the length/depth of detectable defects then you have what you need. If you use Hocking weldprobe you can normaly go for 10/2 with no problems also 1mm deep depending on the conditions. Anyhow if you can find any proper acceptance criteria for structural steel/weld inspection!! Please inform me.

Best regards!
TA

I currently have a client who is wanting to inspect Derrick weldments using Eddy Currents.
: : Is there an API/ASME standard applicable to this type of work?
: .
: The UK standard covering this is BS EN 1711:2000 Non-destructive examination of welds - Eddy current examination of welds by complex plane analysis.
: We could carry out this work for you but most likely would not be competitive unless you are based in the UK
: Don
.



 
 Reply 
 

Product Spotlight

Combination of Digital Image Correlation and Thermographic Measurements

The combination of measuring results from the digital image correlation (ARAMIS, DIC) and temperat
...
ure measuring data from infrared cameras permits the simultaneous analysis of the thermal and mechanical behavior of test specimens in the materials and components testing field.
>

Sci Aps Z-Series Portable Handheld Analysers

The world’s only handheld analyzer that measures carbon content in stainless (yes even L-grades),s
...
teels, and cast irons. Also accepted for low Si analysis for sulfidic corrosion analysis, and is widely used in the power industry for Cr analysis, for flow accelerated corrosion applications.
>

Navic - Steerable Modular Automated Scanner

The Navic is a modular, motorized, steerable scanner designed to carry multiple attachments used
...
in various scanning and inspection applications. The Navic is capable of weld scanning (girth welds and long seam welds), automated corrosion mapping, and tank scanning.
>

IntraPhase Athena Phased Array System

The Athena Phased Array system, manufactured by WesDyne NDE Products & Technology, consists of a pha
...
sed array acquisition system and PC running IntraSpect software. A PC is used to perform acquisition, analysis and storage of the data. System hardware is capable of operating up to four data sets with any combination of phased array or conventional UT probes. NOW AVAILABLE IN 64-64 CONFIGURATION.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window