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- since 1996 -
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Technical Discussions
Hrishi
NDT Inspector,
India, Joined Jun 2012, 19

Hrishi

NDT Inspector,
India,
Joined Jun 2012
19
14:05 Nov-23-2012
SA 199 GR T11. Ferrous or non-ferrous

Dear All,
I want to perform eddy current testing on material SA199 GR T11. I want to know whether the material is ferrous or non ferrous? Can we prform conventional eddy current on this grade of 25 mm OD and 4.19mm thickness?

Please need expert comments.

Thank you all in advance.

 
 Reply 
 
John
John
08:30 Nov-24-2012
Re: SA 199 GR T11. Ferrous or non-ferrous
In Reply to Hrishi at 14:05 Nov-23-2012 (Opening).

Do you have a magnet?

 
 Reply 
 
Ian S
Ian S
10:05 Nov-24-2012
Re: SA 199 GR T11. Ferrous or non-ferrous
In Reply to John at 08:30 Nov-24-2012 .

Nice one John..

Jaw dropping disbelief

 
 Reply 
 
P V SASTRY
R & D, NDT tecniques metallurgy
TAKEN VRS FROM THE POSITION OF SR. DEPUTY GENERAL MANAGER BHEL CORPORATE R&D, India, Joined Jan 2003, 195

P V SASTRY

R & D, NDT tecniques metallurgy
TAKEN VRS FROM THE POSITION OF SR. DEPUTY GENERAL MANAGER BHEL CORPORATE R&D,
India,
Joined Jan 2003
195
10:31 Nov-24-2012
Re: SA 199 GR T11. Ferrous or non-ferrous
In Reply to Hrishi at 14:05 Nov-23-2012 (Opening).

Dear Hrishi,

You should have googled before putting this question to the forum. Mr. Jhon must be asking you many more questions by that single question.

Any way the answer is that this grade is ferromagnetic. This is a low alloy steel.These tubes are generally used in steam generators/heat exchangers. Conventional eddy current testing is not possible on this grade of steel. Remote field eddy current testing has to be done.

Good luck and best wishes

P V SASTRY

 
 Reply 
 
Hrishi
NDT Inspector,
India, Joined Jun 2012, 19

Hrishi

NDT Inspector,
India,
Joined Jun 2012
19
10:46 Nov-24-2012
Re: SA 199 GR T11. Ferrous or non-ferrous
In Reply to P V SASTRY at 10:31 Nov-24-2012 .

Dear Sastry sir,

Thanks for reply.

@John i have magnet but tube is somewhere installed in the exchanger....

 
 Reply 
 
Bob Sudharmin
Bob Sudharmin
01:41 Nov-25-2012
Re: SA 199 GR T11. Ferrous or non-ferrous
In Reply to P V SASTRY at 10:31 Nov-24-2012 .

If this material grade is ferromagnetic, why then is conventional eddy current not possible?
If I understand it correctly, RFEC is for non magnetic materials. Why then the recommendation to do on "ferromagnetic SA199 Gr T11"?
Enlighten us, please.

 
 Reply 
 
RantanplanR
RantanplanR
16:38 Mar-14-2019
Re: SA 199 GR T11. Ferrous or non-ferrous
In Reply to P V SASTRY at 10:31 Nov-24-2012 .

Just saw this post here and have to answer. Eddy Current Testing is possible. RFT is one way to do it, but we are using use PSEC-method. Much better than RFT.


for more Information google "ec-works".

 
 Reply 
 
ASHOK KUMAR PATRA
,
Saudi K-KEM Engineering service co, Saudi Arabia, Joined May 2018, 55

ASHOK KUMAR PATRA

,
Saudi K-KEM Engineering service co,
Saudi Arabia,
Joined May 2018
55
11:52 Mar-16-2019
Re: SA 199 GR T11. Ferrous or non-ferrous
In Reply to Hrishi at 14:05 Nov-23-2012 (Opening).

THE MATERIAL IS FERROMAGNETIC LOW ALLOY STEEL.JUST GOOGLE IT ON NET.

YOU CAN DO SATURATED EDDY CURRENT TESTING OR REMOTE FIELD ELECTROMAGNETIC TESTING.

 
 Reply 
 

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