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Technical Discussions
John smith
NDT Inspector
Canada, Joined Jul 2001, 3

John smith

NDT Inspector
Canada,
Joined Jul 2001
3
08:14 Aug-16-2001
Defect terms

what is Hollow bead and underbead piping???/


 
 Reply 
 
Ken Head
Senior Level III
USA, Joined Jan 2000, 14

Ken Head

Senior Level III
USA,
Joined Jan 2000
14
02:22 Aug-17-2001
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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