Practical Limits of Surface Crack Screening for Heat Exchanger Headers
https://ultrasonic-tank-inspection.brightpathdigest.com/posts/complex-shape-scanning-for-machined-valve-bodies-errors-to-avoid
Practical Limits of Surface Crack Screening for Heat Exchanger Headers Headers join tubes, nozzles, and thick plates with varied weld shapes. Cracks that reach a surface can pose a different risk from simple bead marks