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 -

1676 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, 307

Godfrey Hands

Consultant,
PRI Nadcap,
United Kingdom,
Joined Nov 1998
307
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

ISAFE3 Intrinsically Safe Sensor System

ISAFE3 intrinsically safe sensor system of Vallen Systeme is especially targeted at the petrochemica
...
l - as well as oil and gas transportation industry. The sensor system is designed for permanent monitoring or periodic inspection tasks. Sensors are available for different AE-frequency ranges optimized for corrosion and fatigue crack detection and other applications. The ISAFE 3 sensor system consists of an AE-sensor (model ISAS3) certified according to ATEX/IEC for installation in zone 0, gas group IIC, IP68, 20 to +60 °C, and a signal isolator (model SISO3) certified for installation in zone 2. An ISAS3 sensor can be mounted in atmosphere or submerged, e.g. in water or crude oil. It is supported by mounting tools for temporary (magnets) or permanent (welded) installation. ISAFE3 supports automatic sensor coupling test and can be used with any AE signal processor supporting 28V supply at 90 mA peak, e.g. Vallen Systeme ASIP-2/A.
>

Echomac® PA Tube Weld Tester

The new robotic Echomac® PA TW is an operator friendly test system for detecting weld zone defects
...
in tube and pipe caused by scarfing or welding processes. Electronic scanning ensures that the entire weld zone is covered without the need for mechanical movement or operator adjustment.
>

Research and Application Development For NDT

Acuren’s Research and Application Development specializes in the development of advanced ultraso
...
nic inspection techniques and systems for challenging inspection applications, with an emphasis on practical solutions which are field deployable. Services include manual and automated ultrasonic inspection system development, inspection technique optimization using laboratory scale studies and ultrasonic modeling (CIVA, BeamTool), preparing technical justification for technique evaluation and qualification (Probability of Detection and sizing accuracy studies), inspection/calibration/analysis procedure preparation to support field deployment of custom techniques, and development of custom imaging algorithms to support challenging inspection applications.
>

Portable Ground Penetrating Radar - Proceq GP8000

The Proceq GP8000 portable ground penetrating radar instrument is the beginning of a new era in ND
...
T. The outstanding, patented ultra- wideband technology combined with a compact wireless probe delivers unmatched industry performance. Proceq GP8000 is the world’s first large-scale inspection solution that utilizes Augmented Reality in industrial applications.
>

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