The meaning of UT in steel structure
Ultrasonic testing (ultrasonic, testing). The use of an object's own or defect's acoustic characteristics to detect the effects of ultrasonic propagation on object defects or certain physical characteristics. The ultrasonic frequency used in ultrasonic testing is between 0.5 and 5 MHz (MHz). The most commonly used ultrasonic test is pulse flaw detection
In addition, the strict quality requirements is good, but the quality requirements for the aggerated to cost irresponsible. Acceptance criteria are only required 20%, you want 100%, the more out of the test fees who come out? If it's a special part, you can ask for a primary weld!
Acceptance specification requirement 100% is primary flaw detection, and level two requires only 20% flaw detection, ut refers to ultrasonic testing.
