Can type A and B joints of containers made of 10mm00Cr19Ni10 be subjected to ultrasonic testing?
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bk07.jpg Can type A and B joints of containers made of 10mm00Cr19Ni10 be subjected to ultrasonic testing?
The current ultrasonic testing technology is acceptable. The NB/T47013.3 standard appendix also contains testing methods and quality classification regulations for ultrasonic testing of austenitic stainless steel welded joints. In some situations where RT cannot be performed, UT can be used.
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Is it suitable for people holding Level 2 testing certificates?
It is possible, but the contrast block is difficult to find.
If conditions permit, any certified personnel can do it.
It is difficult to make a comparison test block and it is difficult to determine the defects. It is best for inspectors who have no experience in this field not to do ultrasound.
The only effective methods are rays and penetration. Although ultrasound can be done in theory, in practice the requirements are very high and you may not be able to find anyone to do it. Surface defect penetration
Although this is supported by standards, the detection results are actually unsatisfactory. For austenitic stainless steel materials, UT is considered only if there is really no way.