Re: [MW:26411] PAUT (Phased Array Ultrasonic Testing)

PAUT is faster than RT for sure and can be substituted for RT. It infact can detect all the defects better than RT and with more precision. However it again all drills down to the skill of the operator performing & interpreting results after PAUT & you need to have sufficient space on either side of the welds for better scanning and subsequent results.

Acceptance criteria shall be as per the construction code only. e.g. ASME B31.3 for the piping jobs. Testing method should be certified by a Level III qualified personnel in accordance with the job requirements.

It is always advised to be quite sure of having a well qualified personnel in case if PAUT is to be used.

 

Thanks and regards,

Nishant Nair

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From: 'Ganesan' via Materials & Welding <materials-welding@googlegroups.com>
To: Materials & Welding <materials-welding@googlegroups.com>
Sent: Friday, April 14, 2017 11:04 AM
Subject: [MW:26402] PAUT (Phased Array Ultrasonic Testing)

Dear Experts,

Can you please guide me regarding PAUT (Phased Array Ultrasonic Testing) instead of RT. Our contractor has recommended PAUT due to RT process is slow and it will be affected the project schedule. So, they are pressuring us to do PAUT instead of RT.  

Is it good NDT technique & which standard shall i follow for the acceptance criteria. 

Please share the testing method and acceptance criteria, if anyone have.

I'm waiting for your valuable advise in this regard.     

 

Thanks & Regards, K.GANESAN Quality Control ISGEC / ISGEC John Thompson, A-4 Sector-24 Noida-201301 (UP) Tel. +91-120-2411175 Direct Tel. +91-120-2411175 Mobile : +91-9952166894

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