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Re: Re: [MW:28941] IF ans IFD as per API 1104

By Materials & Welding
Dear Riaz,

I can understand your situation, every non conformance has correction / corrective action, prevention / preventive action. So in that case before confirming the non conformance make sure the following measure of check points has made as per below.
*Whether demonstration of AUT is performed and accepted without any glitches?
*Whether your AUT is been performed as per the clause 11.4.7.3?
*If performed does anyone cross checking with the reports / interpretations are confirming planar imperfection as per clause 9.3.4 / 5?
*Read 9.6.1.1, 2 (IF) and 3 (IFD) as per 9.6.1.1 your client cannot reject just because there is an indication.
*but as per 9.3.4 and 5, so did you check the length of indications are exceeding beyond option A or B or C?
*Check the schematic of your production observation Vs figure 16 and 17 are same observations?
*Check your machine calibrated / equipped in well condtions, not malfunctioned? 
*If everything is all right cross check with different NDE third parties / technicians / machines, just a cross verification.

Followed by thee above, catch the culprit (welder) check the total no of rejection Vs total no of welders (Individual) rejection and make the correction if exist or it may be changes in the weld geometry due to alignment offset of abutting pipe ends, changes in weld reinforcement profile of ID root and OD capping passes, internal chamfering, and ultrasonic wave mode conversion due to  such conditions may cause geometric indications that are similar to those caused by weld imperfections but that are not relevant to acceptability

NOTE: When doubt exists about the type of imperfection being disclosed by an indication, verification may be obtained by using other NDT methods.

https://www.twi-global.com/technical-knowledge/job-knowledge/weld-defects-imperfections-in-welds-lack-of-sidewall-and-inter-run-fusion-041
Regards,
Mohamed Muneeb Mahaboob
CSWIP 3.2-89247/2 
IRCA-9001:2015 LA
ASNT-NDT-L2-RTFI-RT-UT-MT-PT.
SAP#:70021650 APs:JAPID, QCS & QCI.
E muneebslsa@gmail.com M +91-636-955-7189
''If you know any art by any means then SCULPT IT - no matter how cheap or useless it is - JUST SCULPT IT, you will never know when experts will be on demand'' 
 
From: Ri@z
Date: 2019-01-18 17:39
Subject: Re: [MW:28936] IF ans IFD as per API 1104
AUT is mandatory by Client spec.


And Client spec not accepting Lack of fusion. 

We are getting Lack of Fusion and LFD on almost every joint.  Intention of post is to seeking justification for accepting LFD. Client telling as per API 1104 both IF and IFD are Lack of Fusion only hence needed to be CUT OUT and Rewelded. 

I am seeking advice from experts here to justify client regarding the acceptance of LFD 



With Regards
Riaz 
 

On Thursday, 17 January 2019 09:23:56 UTC+5:30, Muneeb wrote:
Hi,

Who told you to perform AUT? I mean why not RT? AUT will hold your project in Reverse gear.

Mostly in stringent case we perform AUT/PAUT/TOFD or where there is multiple requirement like tie-in's, anyhow it's mutual agreement between company and contractor.

And yes both are different by 9.3.4 / 9.3.5, ID and IFD, you cannot straight away reject but contemplate upon given para condition as per the pipe sizes then proceed for acceptance/rejections.

Thanks
Muneeb

On Wed, Jan 16, 2019, 9:24 PM Ri@z <riaz.r...@gmail.com> wrote:

Dear All,

Our Pipeline specification not accepting Incomplete Fusion .In case of incomplete fusion weld shall be rejected and re-welded.


But according to API 1104, IF and IFD are different . So is it required to reject both IF and IFD as both are incomplete Fusion?

Please help me with advice 


I am using AUT for the inspection and 70 % of joints are detecting either IF or IFD 




With Regards

Riaz 





Pls help me 

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