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 -

TWI
TWI is a world leading research and technology organisation established in 1946. From bases in the UK, USA, China, Malaysia, Middle East, India a ...

1260 views
Technical Discussions
Protopappas
Protopappas
03:48 Mar-06-2003
Velocity of stainless steel 316 and plexiglass

Please,

could anyone provide me with the ultrasound velocity of the following materials:
steel 316
plexiglass
perspex (lucite)

I really cannot find accurate values.

Thank you in advance.


    
 
 
Neil Burleigh
Sales
Krautkramer Australia Pty Ltd, Australia, Joined Dec 2002, 153

Neil Burleigh

Sales
Krautkramer Australia Pty Ltd,
Australia,
Joined Dec 2002
153
00:44 Mar-07-2003
Re: Velocity of stainless steel 316 and plexiglass
: Please,
.
: could anyone provide me with the ultrasound velocity of the following materials:
: steel 316
: plexiglass
: perspex (lucite)
.
: I really cannot find accurate values.
.
: Thank you in advance.
.Here is some info. for you
Lucite Vlong 2680m/sec Vshear 1050m/sec
Plexiglass a)UVA Vlong 2760m/sec Vshear 1090m/sec
b)UVAII Vlong 2730m/sec Vshear 1080m/sec
Hope this helps
Regards



    
 
 
Uli Mletzko
R & D, Retired
Germany, Joined Nov 1998, 89

Uli Mletzko

R & D, Retired
Germany,
Joined Nov 1998
89
04:24 Mar-07-2003
Re: Velocity of stainless steel 316 and plexiglass

: could anyone provide me with the ultrasound velocity of the following materials:
: steel 316

The ultrasound velocity in stainless steel is strongly depending on the material (cast, forged, weld), especially on the grain size and the grain orientation, leading to anisotropy.
In general, the velocity is lower than in heat treated, forged, fine grain ferritic carbon steel (clong = 5920 m/s, ctrans =3250 m/s).
So, clong = 5800 m/s might be a suitable average value, but sometimes it can be also down to 5400 m/s.
You have to use suitable control specimens or you have calibrate on the test specimen directly.

Regards
Uli Mletzko
NDT Group, MPA
University of Stuttgart, Germany


    
 
 
Kris Smestad
Kris Smestad
06:46 Mar-14-2003
Re: Velocity of stainless steel 316 and plexiglass
: Please,
.
: could anyone provide me with the ultrasound velocity of the following materials:
: steel 316
: plexiglass
: perspex (lucite)
.
: I really cannot find accurate values.
.
: Thank you in advance.

Keep it simple. If you have a known thickness of a material, you can determine it's exact velocity. Measure a sample with a micrometer. Set your screen range on your A-scan to twice that thickness. After compensating for probe delay, adjust your velocity so you have one signal at 50% and one at 100%.

Easy, right?
.



    
 
 

Product Spotlight

SONOAIR - air-coupled Phased Array Ultrasonic Inspection System

For highly attenuating materials, the performance of the system is critical. The ultrasonic sensors,
...
the scanning area and the system settings should be flexibly adapted to the test task and the material. These high expectations are met with the new and modular testing system SONOAIR. With the world’s first air-coupled phased-array UT inspection system SONOAIR we developed a technology that works with up to 4 transmitter and receiver channels with freely configurable square wave burst transmitters as wells as low noise receiving amplifiers.
>

MUSE Mobile Ultrasonic Equipment

The MUSE, a portable ultrasonic imaging system, was developed for in-field inspections of light-weig
...
ht structures. The MUSE consists of a motor-driven manipulator, a water circulation system for the acoustic coupling and a portable ultrasonic flaw detector (USPC 3010). The MUSE provides images of internal defects (A-, B-,C- and D-scan).
>

PROlineTOP Plug & Play Ultrasonic inspection device

As Plug & Play solution it units all control and operation elements in a small housing and therefo
...
re replaces the typical control cabinet...
>

IRIS 9000Plus - Introducing the next generation of heat exchanger inspection.

Representing the seventh generation of the IRIS system, the IRIS 9000 Plus has nearly 200 years of c
...
ombined field inspection experience incorporated in its design. This experience combined with a strong commitment to quality and a history of innovation has made Iris Inspection Services® the undisputed leader in IRIS technology.
>

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