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What is Defect Classification in Weld Testing about?

1. The document provides classification guidelines for defects found during initial and periodic testing of welded joints using various ultrasound probes and frequencies. 2. Defects are classified as DFWN, DFWO, or DFWR depending on the flaw signal height in FSH (full screen height) units obtained from different probe locations like the head, web, or foot of the weld. 3. For example, a flaw signal of 30 FSH or more from the head region using a normal probe would be declared DFWN during initial testing. D

Author

vidya naresh

Language

EN