WQT Acceptence by UT

[AJAY KUMAR]

Dear experts
is there any new ammandmends for welder qualification,where we can
accept UT Test istead of Destructive/RT Test ?

Regards
Ajay Kumar

[Amit Singh]

yes actually Sec.IX 2010 approves for Rt or ut for Groove weld performance qualification refer QW-142 for same

Ajay Kumar

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[prem nautiyal]

Hi   I think you have not read ASME Sec IX 2010 edition. UT can be conducted for Welder qualification now provided the test coupon size is equal to or greater than 13mm as per ASME Sec IX 2010 edition.   Regards   Prem Nautiyal --- On Fri, 8/24/12, AJAY KUMAR <ajayen...@gmail.com> wrote:

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[cbe swamym]

dear,
 
As per ASME Sec IX 2011 
 

 

QW-191.2 Ultrasonic Examination

 

QW-191.2.1 Method

 

(a)

The ultrasonic examination in QW-142 for welders and in QW-143 for welding operators may be conducted on test welds in material 1⁄2 in. (13 mm) thick or greater.

 

(b) Ultrasonic examinations shall be performed using a written procedure verified by the manufacturer to be in compliance with paragraph T-150, Article 1, Section V and the requirements of Article 4, Section V for methods,procedures, and qualifications.

 

(c)

Ultrasonic examination personnel shall meet the requirements of QW-191.2.2.

 

Personnel Qualifications and Certifications

 

(a)

The Manufacturer shall verify all personnel performing ultrasonic examinations for welder and weldingoperator qualifications have been qualified and certified in accordance with their employer’s written practice.

 

(b)

The employer’s written practice for qualification and certification of examination personnel shall meet all applicable requirements of SNT-TC-1A1 for the examination method and technique.

 

(c)

Alternatively, the ASNT Central Certification Program (ACCP) or CP-1891 may be used to fulfill the examination and demonstration requirements of SNT-TC-1A and the employer’s written practice.

 

(d)

Provisions for the training, experience, qualification, and certification of NDE personnel shall be described in the Manufacturer’s Quality Control System.
 

QW-142 Special Examinations for Welders :

 

Radiographic or ultrasonic examination per QW-191 may be substituted for mechanical testing of QW-141 for groove-weld performance qualification as permitted.

 

QW-304 to prove the ability of welders to make sound welds.

 

QW-143 Examination for Welding Operators

Thank & Best Regards,

 

M Veera SAMY- Bureau Veritas.

Coimbatore

 

 
 

> Date: Fri, 24 Aug 2012 03:42:07 +0530

> Subject: [MW:15120] WQT Acceptence by UT

> From: ajayen...@gmail.com
> To: material...@googlegroups.com

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[MW]

Update: QW-191.2.1, Subparagraph (a) revised – The ultrasonic examination in QW-142 for welders and in QW-143 for welding operators may be conducted on 1/4 in. (6 mm) thick or greater.

Background – Minimum thickness for applicability of UT examination reduced to be consistent with Construction Codes, ASME Section VIII Divisions 1 and 2.