Re: [MW:19742] Duplex Grade UNS 31803 Weld - UT Velocity

Dear fiend,

For fully austenitic stainless steel e.g., grade 302 longitudinal speed is about 5700m/s and for transverse mode is about 3120m/s.

In case of duplex you have to find the speed (long. or trans. mode) experimentally because you faced with a duplex microstructure of ferrite (microstructure for simple carbon steel) and austenite (microstructure for some stainless steels such as 302). But from my sight you can not use  individual speed for ferritic C.S. or austenitic S.S.

Regards

On Thu, Jan 2, 2014 at 9:01 AM, Kale, Bhaskar M <bmkale@gmail.com> wrote:

YOU CAN CALCULATE ACTUAL VELOCITY IN THE MATERIAL.

BHASKAR

On Thu, Jan 2, 2014 at 9:38 AM, <think.differently360@gmail.com> wrote:

Saravanan,
The basic of UT sound of velocity of Steel alsmot same including SS and CS. But to know exactly you have to calib on standard block of which material to be used.

On Tuesday, December 17, 2013 6:56:13 PM UTC+7, saravanan sornam wrote:

Thank you Mr.Prem , do you have any material for my reference.
Regards
Saravanan
Korea

On Dec 17, 2013 1:38 AM, "prem nautiyal" <prem_na...@yahoo.com> wrote:

Hi

 

I think You can consider the velocity of sound as steel for this material.

For longitudinal waves, take V = 5900 m/sec

For shear waves, take V = 3200 m/sec

 

Regards

 

Prem Nautiyal

9769316004

On Monday, December 16, 2013 10:00 AM, Saravanan Sornam <sarava...@gmail.com> wrote:

Dear Experts ,

What is the Ultrasonic Velocity to be used for Duplex UNS 31803 material welding examination.

   Please share some data and material copy for my reference. 

Awaiting for your reply.

Thanks and Regards,

Saravanan,

Korea.

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