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Technical Discussions
Mark King
Mark King
08:20 Sep-12-2001
Automatic UT inspection of tubing (Super Duplex)

Currently we are reviewing specifications for our client, these are submitted with purchase orders for super duplex tubing ranging from 14.7mmOD x 1.0 to 70.0mmOD x 3.55.
Currently the supplier carry's out full body UT inspection, calibrated by reflector on the inside and outside, L + T directions. The system is gated at 70% and the DB's are increased by +3. Observations of previous charts of run tubing shows numerous signals, under the 70% though with extreme width, for both L + T probes.
My question is, I can not locate a specification or reference to establishing an acceptance level, for allowable width of indication below height.
Any assitance would be appreciated.




 
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Oleg Volf
Oleg Volf
04:29 Dec-07-2001
Re: Automatic UT inspection of tubing (Super Duplex)
: Currently we are reviewing specifications for our client, these are submitted with purchase orders for super duplex tubing ranging from 14.7mmOD x 1.0 to 70.0mmOD x 3.55.
: Currently the supplier carry's out full body UT inspection, calibrated by reflector on the inside and outside, L + T directions. The system is gated at 70% and the DB's are increased by +3. Observations of previous charts of run tubing shows numerous signals, under the 70% though with extreme width, for both L + T probes.
: My question is, I can not locate a specification or reference to establishing an acceptance level, for allowable width of indication below height.
: Any assitance would be appreciated.
.
You can check the standard API 5L, May be it will help you


 
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