It is suitable for phased array ultrasonic testing of welded joints of type I in-process and in-use metal materials in pressure equipment. When the size of the test block meets the testing requirements, the CSK-IA series test block described in NB/T 47013.3 can also be used, and the use range is implemented according to the provisions of NB/T 47013.3. It is not applicable to the test of the corner joint of the pipe seat with an inner diameter less than 200mm.
PRB series test block use range
PRB-I试块
PRB-II试块
PRB- III试块
PRB-IV试块