Welding Defect Photo

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Harry Patel

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Nov 2, 2011, 7:39:16 AM11/2/11
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Dear Sirs,
 
Anybody have welding defect photo like incomplet fusion,incomplete penetration, root concavity in pipe.
 
I hope for your reply.
 
Thank you very much in advance.

Nandesh Kumar

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Nov 2, 2011, 12:15:11 PM11/2/11
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Dear Patel,

Please visit www.ndt-ed.org 

Best regards,

Nandesh Kumar A


From: Harry Patel <harry...@gmail.com>
To: material...@googlegroups.com
Sent: Wednesday, 2 November 2011 3:39 PM
Subject: [MW:12817] Welding Defect Photo

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chandrakant yadav

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Nov 2, 2011, 12:19:00 PM11/2/11
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 Dear Harry
               I suppose the link will be help full for you.

http://www.ndt-ed.org/EducationResources/CommunityCollege/Radiography/TechCalibrations/RadiographInterp.htm
With Kind Regards,

Chandrakant Yadav 
QA/QC manager
LINDE PROCESS PLANT (SOUTH AFRICA)

Anil Hegde

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Nov 2, 2011, 1:23:56 PM11/2/11
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Hope this will help you.


tc

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Welding Imperfections.pdf

Arunachalam A

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Nov 2, 2011, 3:29:13 PM11/2/11
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On Wed, Nov 2, 2011 at 3:39 PM, Harry Patel <harry...@gmail.com> wrote:
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Arunachalam.A,


Naveed Bhatti

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Nov 2, 2011, 10:49:47 PM11/2/11
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Hi Harry,
 
Please find a good stuff on this link.
 
 
Thanks,
 
Regards,
Naveed PE
Project Engineer 

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with best regards,
Naveed Bhatti

Morin, Darcy (Bantrel Management Services)

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Nov 3, 2011, 9:15:18 AM11/3/11
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Thank you very much for this resource.  It is very helpful. 
 
I notice what TWI describes as "lack of root fusion" and what ASME B31.3 describes as "incomplete penetration" are in fact one and the same.  
 
In normal service, a girth butt weld designed under ASME B31.3, a weld is allowed 38 mm of "incomplete penetration" for every 150 mm of weld. BUT zero "lack of fusion".  Many RT interpreters under ASME B31.3 confuse the 2 indications, leading to unnecessary rework and an artificially high repair rate.  Can any of our experts speak to this?
 
Warm regards,
 
Darcy Morin    


From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Anil Hegde
Sent: Wednesday, November 2, 2011 11:24 AM
To: material...@googlegroups.com
Cc: harry...@gmail.com
Subject: Re: [MW:12831] Welding Defect Photo

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Sayee

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Nov 3, 2011, 1:23:12 PM11/3/11
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Whoever circulated the TWI material:

I wish you were in Europe for then I could retire off the money TWI made of the copyright infringement through this email distribution of copyrighted material. Holding such material is good enough for this, but freely circulating on an open forum, what a joke.

Sent from my iPhone, please excuse any typos and the brevity of this message.
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Thanks and Regards
Sayee Raghunathan
 
Associate Director
TWI Ltd, Granta Park, Great Abington, Cambridge, CB21 6AL, U.K.
 
If your actions inspire others to dream more, learn more, do more and become more, you are a leader. -- John Quincy Adams
 
<Welding Imperfections.pdf>

Dindo

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Nov 3, 2011, 3:06:20 PM11/3/11
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There is a difference between the two. When I took the course for CSWIP 3.2, TWI explained it very well and how it was called by its name is what it really is.
 
Incomplete Penetration is when the root did not go through the the "land"
 
Lack of root fusion is when the weld went through the "land" but did not fused on the "land" in one side or both sides.

ZUL MAS

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Nov 4, 2011, 7:06:23 AM11/4/11
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Other term commonly used for lack of penetration is suck back (in this case it may completely fuse at all face of the metal, but still happen lack of penetration). Lack of penetration is different than Lack of fusion. Some time we can see the weld metal fully penetrate through the root but there is some area at the roof face is not fuse well (this is called Lack of fusion).
 
From: Dindo <dindod...@gmail.com>
To: material...@googlegroups.com
Sent: Thursday, November 3, 2011 10:06 PM
Subject: Re: [MW:12859] Welding Defect Photo

There is a difference between the two. When I took the course for CSWIP 3.2, TWI explained it very well and how it was called by its name is what it really is.
 
Incomplete Penetration is when the root did not go through the the "land"
 
Lack of root fusion is when the weld went through the "land" but did not fused on the "land" in one side or both sides.
 


 
On Thu, Nov 3, 2011 at 7:15 AM, Morin, Darcy (Bantrel Management Services) <Mor...@bantrelmanagementservices.com> wrote:
Thank you very much for this resource.  It is very helpful. 
 
I notice what TWI describes as "lack of root fusion" and what ASME B31.3 describes as "incomplete penetration" are in fact one and the same.  
 
In normal service, a girth butt weld designed under ASME B31.3, a weld is allowed 38 mm of "incomplete penetration" for every 150 mm of weld. BUT zero "lack of fusion".  Many RT interpreters under ASME B31.3 confuse the 2 indications, leading to unnecessary rework and an artificially high repair rate.  Can any of our experts speak to this?
 
Warm regards,
 
Darcy Morin    

Raghuram Bathula

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Apr 5, 2012, 1:10:18 AM4/5/12
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sajid sakhidas

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Apr 5, 2012, 4:04:35 AM4/5/12
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Dear expert,
 
Good afternoon,
 
Any one suggest how to distinguish between root under under cut(RUC) and elongated slag inclusion  during  RT interpretation.
 
Thanks
SAJID

Arunachalam A

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Apr 5, 2012, 7:27:35 AM4/5/12
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zakir ali

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Apr 6, 2012, 3:35:16 AM4/6/12
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Dear Sajid,

Root under cut will be darker & more sharp, whereas the slag would be less darker & have hazzy appearnce.

Regards,

Zakir Ali.

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Jean Staton

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Apr 6, 2012, 8:36:17 AM4/6/12
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Slag looks wider than undercut and undercut would follow the weld, not be straight – my opinion



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M A SHAIKH

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Apr 6, 2012, 12:43:13 PM4/6/12
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Dear All,

Please find the attached file for Radiographic images.
M.A.Shaikh
Welding Supervisor.
DME (expected) ,SSLC, DQC, ITI, (Welding), ASNT Level II (VI,MT,PT,UT,RT,RTFI)
Safety Qualified, PTW Qualified.
Phone No: +91-9723406744
http://in.linkedin.com/in/soaebshaikh
http://www.skillpages.com/soaeb.shaikh
IM : soaeb.shaikh (skype)




Radiographic film.zip
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