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Technical Discussions
S S Ananthan
Consultant,
RAA Tech Solutions, India, Joined Jun 2000, 36

S S Ananthan

Consultant,
RAA Tech Solutions,
India,
Joined Jun 2000
36
01:19 Mar-06-2006
RT of thin sheet welds

Hello,

I have been asked to take radiographs of thin sheet SS welds - 0.5 mm and above. Is there any requirement for RT of such a low thickness ? Will not a hydrotest adn PT be sufficiient for this purpose ?

Is there any standard for RT of such thin sheets ? What would be the possible sensitivity acheivable in X rays ?

S S Ananthan


    
 
 
Fred
Fred
02:47 Mar-06-2006
Re: RT of thin sheet welds
----------- Start Original Message -----------
: Hello,
: I have been asked to take radiographs of thin sheet SS welds - 0.5 mm and above. Is there any requirement for RT of such a low thickness ? Will not a hydrotest adn PT be sufficiient for this purpose ?
: Is there any standard for RT of such thin sheets ? What would be the possible sensitivity acheivable in X rays ?
: S S Ananthan
------------ End Original Message ------------

What would you use for penetrameters?



    
 
 
S S Ananthan
Consultant,
RAA Tech Solutions, India, Joined Jun 2000, 36

S S Ananthan

Consultant,
RAA Tech Solutions,
India,
Joined Jun 2000
36
00:08 Mar-16-2006
Re: RT of thin sheet welds
----------- Start Original Message -----------
: : Hello,
: : I have been asked to take radiographs of thin sheet SS welds - 0.5 mm and above. Is there any requirement for RT of such a low thickness ? Will not a hydrotest adn PT be sufficiient for this purpose ?
: : Is there any standard for RT of such thin sheets ? What would be the possible sensitivity acheivable in X rays ?
: : S S Ananthan
: What would you use for penetrameters?
------------ End Original Message ------------

We can use wire penetrameters - whatever is the minimum diameter available. The sensitiuvity will not be definitely 2% but at least some testing is possible .
My question : 1) Is RT required ? 2) Is any standard available for such requirements?


S S Ananthan





    
 
 
Jaromir A. Masa, PhD
Jaromir A. Masa, PhD
00:05 Mar-17-2006
Re: RT of thin sheet welds

The main question is, why they require x-ray testing. What will flow inside? And how the tin sheet weld seam will be stressed. I remember, in chemical industry, the tubes with liquid ethylene were 100% x-rayed. Stress was in cryogenic temperatures. When you speak about hydro a pressure testing, it is clear, it concerns low-dia tubes. Another question are the dimensions of allowable flaws.

Jaromir Amadeus Masa
Starmans Electronics Ltd
Prague



    
 
 

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