How to perform non-destructive testing on pipes with a wall thickness of less than 2 mm
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Currently, there is a tube with a wall thickness of 1.5 mm and a diameter of 10 mm that needs to undergo non-destructive testing. How should this testing be carried out? ? ?
Use ultrasonic testing or pool flow testing.
Thin-walled pipes can be inspected using eddy current testing, and their surfaces can also be inspected using penetrant testing. However, for such a thin wall thickness of less than 2 mm, ultrasound, magnetic particle testing, and radiography are not viable options.
Both UT and ET can achieve wall thicknesses of 0.2 to 1.2 mm. For UT, a transverse probing method is used; the flaw detection technique employs either linear or spot focusing, with a linear speed of 2 meters per minute ； For ET, a combined approach of probe-type and through-type ET is used to compensate for each other’s shortcomings. Both of these methods are in use, and the relevant information can be found online.
Hello! There is such a problem: currently, the testing agencies in our region are all using standard 47014! They told us that only defects larger than 2mm can be detected! Are there any relevant standards?
I’m sorry; I have some knowledge of the manufacturing standards and production processes for materials, but I’m not familiar with the standard you mentioned, so it’s difficult for me to give an opinion. I’m very apologetic – I hope someone more knowledgeable can answer this question.