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 -

1321 views
Technical Discussions
Philippe Rubbers
Engineering
SCM, South Africa, Joined Nov 1998, 22

Philippe Rubbers

Engineering
SCM,
South Africa,
Joined Nov 1998
22
08:28 Aug-11-1999
UT inspections of large castings and austenitic steel

What techniques are available to inspect (volumetric) coarse grain
material,such as castings and austenitic steels, with a thick cross
section? Examples where this material would be used is in the
primary loop of nuclear power stations, and in pipe work in the
petrochemical industry.

Thanks


 
 Reply 
 
jayesh.vanza
jayesh.vanza
07:53 Aug-11-1999
Re: UT inspections of large castings and austenitic steel
: What techniques are available to inspect (volumetric) coarse grain
: material,such as castings and austenitic steels, with a thick cross
: section? Examples where this material would be used is in the
: primary loop of nuclear power stations, and in pipe work in the
: petrochemical industry.

: Thanks




 
 Reply 
 
GAF
GAF
03:16 Aug-13-1999
Re: UT inspections of large castings and austenitic steel
: : What techniques are available to inspect (volumetric) coarse grain
: : material,such as castings and austenitic steels, with a thick cross
: : section? Examples where this material would be used is in the
: : primary loop of nuclear power stations, and in pipe work in the
: : petrochemical industry.

: : Thanks

Depends on the material and what type of inspection but in general Ultrasonic inspection of CSS components has been unreliable. Your best bet is a low freqency focused dual L wave 3/4 or 1 meg for crack detection



 
 Reply 
 
Norm Woodward
Norm Woodward
08:42 Aug-13-1999
Re: UT inspections of large castings and austenitic steel
: What techniques are available to inspect (volumetric) coarse grain
: material,such as castings and austenitic steels, with a thick cross
: section? Examples where this material would be used is in the
: primary loop of nuclear power stations, and in pipe work in the
: petrochemical industry.

I have no first hand experience with them, but Krautkramer, and a few others, were pushing "composite transducers" as a solution to inspecting noisy materials.

As I recall, this site had some on-line articles about them back in the fall of '96.

Hope this helps,

Norm


 
 Reply 
 
Russ Minkwitz
Russ Minkwitz
09:59 Aug-13-1999
Re: UT inspections of large castings and austenitic steel
: What techniques are available to inspect (volumetric) coarse grain
: material,such as castings and austenitic steels, with a thick cross
: section? Examples where this material would be used is in the
: primary loop of nuclear power stations, and in pipe work in the
: petrochemical industry.

Sir,

Dual element critically refracted longitudinal waves have been used for such applications for years. They are mentioned in IIW handbook on the examination of austenetic welds.

Further there are more detailed papers on dual element and tandem techniques published by RTD and Panametrics.

If you would like copies please provide you address and we will send more information.

Best Regards,
Russ Minkwitz
Manager, Transducer Sales





 
 Reply 
 
satish
satish
09:38 Oct-29-1999
Re: UT inspections of large castings and austenitic steel
: What techniques are available to inspect (volumetric) coarse grain
: material,such as castings and austenitic steels, with a thick cross
: section? Examples where this material would be used is in the
: primary loop of nuclear power stations, and in pipe work in the
: petrochemical industry.

: Thanks




 
 Reply 
 

Product Spotlight

TESTD-PT SYSTEM

Pulse thermography is a non-contact test method that is ideal for the characterization of thin fil
...
ms and coatings or the detection of defects. With a remarquable short test time and a high detection sensitivity, the Telops TESTD-PT is the perfect tool for non- destructive testing. With such high frame rates, it is even possible to investigate highly conductive or diffusive materials.
>

AIS229 - Multipurpose Real Time System

Latest standard & automatic real time system developed by Balteau. The AIS229 has been designed to
...
do series inspection in a wide variety of industry. Composed of a shielded cabinet, 5 axis manipulator, x-ray generator and tubehead from 160kV to 225kV, a fl at panel & much more, the AIS229 is most certainly one of the most multipurpose RTR system available on the market.
>

HD-CR 35 NDT Computed Radiography System

Portable high-resolution CR scanner for all radiography applications - weld testing, profile images
...
and aerospace. No matter what type of radiographic testing you are performing, the unique TreFoc Technology of the HD-CR 35 NDT imaging plate scanner always guarantees the highest image quality.
>

Ultrasonic Probe Recharacterization Service

NDT Systems offers a comprehensive Aftercare and Recharacterization Service for all our ultrasonic
...
probes. The Recharacterization Service is fully compliant with International ASTM E1065 Standard Guide (and other applicable standards) and offers complete documentation, traceable to the ASTM E1065 Standard. For more details or to schedule Recharacterization Services contact ndtsales@ndtsystems.com
>

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