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- since 1996 -
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Technical Discussions
John carpenter
John carpenter
21:08 Aug-11-2013
Wire IQI

Hello everyoane,
How you calculate the radiographic sensitivity when using the wire IQI.I only used the hole type penetrameters, but now there s a European customer that want us to use the wire type.I know there are some standards out there, but maybe somebody can explain it to me much clearer.Thank you

andrew cunningham
NDT Inspector

andrew cunningham

NDT Inspector
Joined Jun 2008
238
23:30 Aug-11-2013
Re: Wire IQI
In Reply to John carpenter at 21:08 Aug-11-2013 (Opening).

If you are shooting through 100mm of steel and you can see a IQI 1mm wire. I would think you would have 1% But I could be wrong.

John carpenter
John carpenter
23:42 Aug-11-2013
Re: Wire IQI
In Reply to andrew cunningham at 23:30 Aug-11-2013 .

Thank you for your answer, but I think there s a formula that need to be applied based on the thinnest wire visible.Anyway if somebody have experience working with this type of IQI please give me some feedback.

Ed T.
Other, ASNT Level III, UT, RT, MT, PT, VT
NDT Level III, Saudi Arabia, Joined Sep 2011, 169

Ed T.

Other, ASNT Level III, UT, RT, MT, PT, VT
NDT Level III,
Saudi Arabia,
Joined Sep 2011
169
08:12 Aug-12-2013
Re: Wire IQI
In Reply to John carpenter at 23:42 Aug-11-2013 .

I believe this is correct.

Calculate the radiographic sensitivity for a wire-type penetrameter using the formula:

Sensitivity (%) = Thickness of the thinnest wire * 100/Specimen thickness

shahid
NDT Inspector,
Pakistan, Joined Mar 2013, 10

shahid

NDT Inspector,
Pakistan,
Joined Mar 2013
10
13:49 Aug-12-2013
Re: Wire IQI
In Reply to John carpenter at 21:08 Aug-11-2013 (Opening).

Hi Sorin,

If you want to calculate the radiographic sensitivity when using the wire IQI, you can use this formula .
Thickness of the thinnest wire x 100%
Sensitivity = -------------------------------------------------
Material thickness
AS you know you need 2% sensitivity for accept to radiography film. I have DIN & ISO IQI sensitivity chart that is alrady calculated . If you wants contact me.
Regard

John carpenter
John carpenter
01:29 Aug-13-2013
Re: Wire IQI
In Reply to shahid at 13:49 Aug-12-2013 .

Thank you very much guys for the info.
Shahid if can give me those charts I would realy appreciate it.

Michel Couture
NDT Inspector,
consultant, Canada, Joined Sep 2006, 889

Michel Couture

NDT Inspector,
consultant,
Joined Sep 2006
889
02:10 Aug-13-2013
Re: Wire IQI
In Reply to John carpenter at 01:29 Aug-13-2013 .

John,

Have a look at ASTM E747. In there it gives you the equivalence for hole and wire type penetrameters.

EDUARDO VERZOSA
EDUARDO VERZOSA
08:36 Dec-23-2013
Re: Wire IQI
In Reply to shahid at 13:49 Aug-12-2013 .

kindly gave to me the information ASTM of 4A & 4B WIRE DIAMETER CHART

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