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- since 1996 -

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Technical Discussions
perry
perry
01:26 Aug-04-2000
about austenitic steel ndt

where can I get some information about austenitic steel NDT, especially on electric generator, whose material is 50Mn18Cr4WN(18MnCr4)?
thank you for your help.


    
 
 Reply 
 
nard
nard
07:49 Aug-05-2000
Re: about austenitic steel ndt
Dear A.Delahaza
We have over 30 years experience in the examination of austenitic steel
welds . Special longitudinal angled probe have to be used to penetrate the
austenitc colonnar structure . Actually we are in Korea to train people for
the examination pressure vessels with heavy thicknesses .At the 15 World
Conference on NDT we will present a paper on this subject .
Send me you fax number , will send you material .
I&T NARDONI INSTITUTE nardoni @numerica.it Brescia Italy fax
0039 -030-2667429 .
Handy phone :
0039-348-2280470


best regards


G:NARDONI


----------
: where can I get some information about austenitic steel NDT, especially on electric generator, whose material is 50Mn18Cr4WN(18MnCr4)?
: thank you for your help.




    
 
 Reply 
 
Thomas Murphy
NDT Inspector
USA, Joined Jul 2000, 16

Thomas Murphy

NDT Inspector
USA,
Joined Jul 2000
16
07:31 Aug-07-2000
Re: about austenitic steel ndt
EPRI (Electrical Power Research Institute)
In Charlotte, South Carolina, USA has published an
exhaustive recomendation manual for this exact
application. The retaining rings are difficult to
inspect. Inspection methods are similar to those
employed during inspection of austentic piping
but are different enough that specialized training
would be recommended for a new inspector. The EPRI
report lists both the inspection possibilities (UT,
ET, PT, VT) as well as the advantages and disadvantages
of each. It also touches on the fracture mechanics,
flaw types, and methods of repair. The report number
is EPRI EL/EM-5117-SR it can also be accessed by the
topics of retaining rings, stress corrosion cracking,
nondestructive testing and in-service inspection.

Regards,
Tom

: where can I get some information about austenitic steel NDT, especially on electric generator, whose material is 50Mn18Cr4WN(18MnCr4)?
: thank you for your help.




    
 
 Reply 
 

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