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Technical Discussions
Stan
NDT Inspector,
Canada, Joined Jan 2009, 31

Stan

NDT Inspector,
Canada,
Joined Jan 2009
31
19:57 Oct-27-2016
MT Wet Bench Question

Hi guys, I'm just looking for a little advice.
I was under the assumption that when using circular magnetization (head shots) on a hollow part that you calculate the effective diameter, based on the square root of the sum of the ID squared and OD squared, however, in ASTM E709 I can find no reference to this.
Will someone enlighten me as to whether the effective diameter applies to longitudinal magnetization (coil shots) only or if it also applies to circular magnetization.
Thanks
Stan

    
 
 Reply 
 
Michel Couture
NDT Inspector,
consultant, Canada, Joined Sep 2006, 847

Michel Couture

NDT Inspector,
consultant,
Canada,
Joined Sep 2006
847
02:40 Oct-28-2016
Re: MT Wet Bench Question
In Reply to Stan at 19:57 Oct-27-2016 (Opening).

Stan,

You should use the effective diameter as well for circular magnétisation.

    
 
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