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468 views
08:14 Aug-16-2001

John smith

NDT Inspector
Canada,
Joined Jul 2001
3
Defect terms

what is Hollow bead and underbead piping???/


 
02:22 Aug-17-2001

Ken Head

Senior Level III
USA,
Joined Jan 2000
14
Re: Defect terms : what is Hollow bead and underbead piping???/
.

Hollow bead is a term (mainly used in the pipeline industry) for linear porosity which occurs in the root pass of an open root weld. Im not real sure exactly what "underbead piping" never have used that one


 


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