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 -
1575 views
Technical Discussions
Prasad
Director, NDT Consultant
Energy Workforce Group of Companies, Malaysia, Joined Aug 2003, 12

Prasad

Director, NDT Consultant
Energy Workforce Group of Companies,
Malaysia,
Joined Aug 2003
12
01:33 May-28-2004
NDT method selection on SS Vessels

Dear All,

Could you all please advise me suitable NDT methods and their detailed specifications for the surface and near surface crack detection of pressure vessels made of made of SS304L and SS316L materials and operating at 65-80 deg. C temperature range

Thanks,

Prasad




 
 Reply 
 
D.Simon Amallraja
D.Simon Amallraja
04:58 May-31-2004
Re: NDT method selection on SS Vessels
----------- Start Original Message -----------
: Dear All,
: Could you all please advise me suitable NDT methods and their detailed specifications for the surface and near surface crack detection of pressure vessels made of made of SS304L and SS316L materials and operating at 65-80 deg. C temperature range
: Thanks,
: Prasad
------------ End Original Message ------------

Dear Mr. Prasad,

Give your complete postal address with telephone nos, so we can contact you and discuss with your requirement. We can also suggest you suitable equipment and guide you.

D.Simon Amallraja.
Asst.Manager -NDT,
Mahindra Intertrade Ltd,
1-7-1,Parklane, Secunderabad - 500003.
Ph: 0 98480 43309.


 
 Reply 
 
Godfrey Hands
Consultant,
PRI Nadcap, United Kingdom, Joined Nov 1998, 303

Godfrey Hands

Consultant,
PRI Nadcap,
United Kingdom,
Joined Nov 1998
303
08:23 Jun-01-2004
Re: NDT method selection on SS Vessels
----------- Start Original Message -----------
: Dear All,
: Could you all please advise me suitable NDT methods and their detailed specifications for the surface and near surface crack detection of pressure vessels made of made of SS304L and SS316L materials and operating at 65-80 deg. C temperature range
: Thanks,
: Prasad
------------ End Original Message ------------
Dear Prasad,
Perhaps you could provide some more details for the NDT community out there.
What do you mean by "Near Surface".
What do you want to inspect? Welds and H.A.Z. only or entire vessel?
I assume that the vessel will be at normal temperature and access inside when you want to inspect. Can you please confirm. Also that any necessary insulation will be removed prior to inspection.

Regards,

Godfrey Hands




 
 Reply 
 
R J Chaudhari
Director,
CALTECH ENGINEERING SERVICES, India, Joined Mar 2003, 13

R J Chaudhari

Director,
CALTECH ENGINEERING SERVICES,
India,
Joined Mar 2003
13
03:56 Jun-02-2004
NDT method selection on SS Vessels
Dear Prasad,
Best NDT Method will be Field Metallography. You can confirm not only cracks but also microstructure of pressure vessel without distroying material. You can also get photographs and replicas for your records and expert evaluations, decisions.

Regards,

R J Chaudhari


----------- Start Original Message -----------
: : Dear All,
: : Could you all please advise me suitable NDT methods and their detailed specifications for the surface and near surface crack detection of pressure vessels made of made of SS304L and SS316L materials and operating at 65-80 deg. C temperature range
: : Thanks,
: : Prasad
: Dear Prasad,
: Perhaps you could provide some more details for the NDT community out there.
: What do you mean by "Near Surface".
: What do you want to inspect? Welds and H.A.Z. only or entire vessel?
: I assume that the vessel will be at normal temperature and access inside when you want to inspect. Can you please confirm. Also that any necessary insulation will be removed prior to inspection.
: Regards,
: Godfrey Hands
------------ End Original Message ------------




 
 Reply 
 
J. Mark Davis
Teacher, And Consultant
University of Ultrasonics, Birmingham, Alabama, USA, Joined Mar 2000, 85

J. Mark Davis

Teacher, And Consultant
University of Ultrasonics, Birmingham, Alabama,
USA,
Joined Mar 2000
85
01:59 Jun-02-2004
Re: NDT method selection on SS Vessels
Prasad,

One of the best "NDT" methods for SS vessels is using ID and OD Creeping Waves. These waves travel along the ID and OD surfaces (longitudinal waves velocities) to detect flaws which are perpendicular to the surfaces.

I have demonstrated detection of ID and OD cracks as small as 0.001 inches in depth.

One concern is the type of SS material. What is the grain size. When the grain size approaches "1" or "O" in size Creeping waves generation on the ID surface may not be generated. What is the thickness?

Another consideration is the carbon content and what type of crack you might be looking for.

For a explanation of ID and OD Creeping Waves go to the publications section of ndt.net and see review The Advanced Ultraosnic Sizing Handbook I wrote.

Sincerely,

J. Mark Davis

----------- Start Original Message -----------
: Dear Prasad,
: Best NDT Method will be Field Metallography. You can confirm not only cracks but also microstructure of pressure vessel without distroying material. You can also get photographs and replicas for your records and expert evaluations, decisions.
: Regards,
: R J Chaudhari
:
: : : Dear All,
: : : Could you all please advise me suitable NDT methods and their detailed specifications for the surface and near surface crack detection of pressure vessels made of made of SS304L and SS316L materials and operating at 65-80 deg. C temperature range
: : : Thanks,
: : : Prasad
: : Dear Prasad,
: : Perhaps you could provide some more details for the NDT community out there.
: : What do you mean by "Near Surface".
: : What do you want to inspect? Welds and H.A.Z. only or entire vessel?
: : I assume that the vessel will be at normal temperature and access inside when you want to inspect. Can you please confirm. Also that any necessary insulation will be removed prior to inspection.
: : Regards,
: : Godfrey Hands
------------ End Original Message ------------




 
 Reply 
 

Product Spotlight

Silverwing RMS PA - Phased-array corrosion mapping

Eddyfi Technologies integrated two market leading solutions, Silverwing’s RMS and M2M’s instru
...
ments to provide a high-speed, remote access ultrasonic phased-array inspection system with live total focusing method (TFM).
>

TraiNDE UT

TraiNDE UT is a virtual tool associated with a signal database which simulates real inspection con
...
ditions for numerous applications (Type A/V1 block, DAC block, welds and plates).
>

OmniScan™ X3 flaw detector

The OmniScan X3 flaw detector is a complete phased array toolbox. Powerful tools, like total focus
...
ing method (TFM) images and advanced visualization capabilities, enable you to complete your inspection with greater confidence.
>

Research Center IDEKO develops an ultrasonic train wheel inspection system for CAF

The Basque Research centre IK4-IDEKO has developed a state-of-the-art ultrasonic inspection system f
...
or the train wheel. This system secures a sound condition of train wheels and is thus a significant contribution to rail transport safety. The device was delivered to CAF recently and its use allows the manufacturer to become an approved supplier of rolling stock in Italy, as it meets the demanding homologation standards of this country. \\\\r\\\\n
>

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