Dye Penetrant Inspection (PT) (DPI)
Welcome to [NDT Inspection Portal]’s dye penetrant testing group, a place for professionals to connect... View more
Minumum depht of a discontinuaty to be detected by dye penetrant testing
Minumum depht of a discontinuaty to be detected by dye penetrant testing
Hello,
please tell, which is the minumum depht
(in microns) of a discontinuaty in steel to be detected by dye penetrant testing?I see (without a magnifying glassa) a crack (length is 5 mm) on perfectly cleaned tested surface, but using of dye penetrant testing does not give an indication. I understand, that it is a surface crack and want to know what is the minimum depht of a discontinuaty to be detected by dye penetrant testing.
- 1 Reply
Penetrant Testing is not meant to establish the depth of a defect that is open to the surface. If you really want to know the depth of a surface indication, I recommend using Eddy Current or Ultrasonic Inspection.
Log in to reply.