So, if one was to use a steel pick, and cross the apparent fault feature, if it was a tap mark, it would bump up, if a crack, it would drop, right?
Steel Tank Condemned: Cracks in Threads?
- Thread starter Barnaby'sDad
- Start date
Please register or login
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
- Ability to post and comment on topics and discussions.
- A Free photo gallery to share your dive photos with the world.
- You can make this box go away
Yep to the first. Maybe to the second. Most picks aren't fine enough, nor cracks wide enough to drop.
But this pic is straight out of the PSI/PCI VIS class on tool marks.
But this pic is straight out of the PSI/PCI VIS class on tool marks.
OP
Barnaby'sDad
Contributor
Guess I should have posted a poll.
time for a Dye Penetrant Inspection.....
Curious, would a visual eddy reveal anything here?
Curious, would a visual eddy reveal anything here?
This I would call a crack. if all the marks were like the middle one and they were every 1/3, 1/4th or 5th around the threads I would call it a tap stop.
probbly not as the eddy machine has to be made for the alloy if you were thinking about using the 6531 or 6061 eddy machine.
2airishuman
Contributor
Looks more like sloppy threading work than a crack, to me.
Why would anyone want an Asahi cylinder anyway? They're unnecessarily heavy. LDS may be doing you a favor.
Why would anyone want an Asahi cylinder anyway? They're unnecessarily heavy. LDS may be doing you a favor.
Boston Breakwater
"Outlaw." Solo Diver
I believe that it is painted on with crayons. A conspiracy with epic proportions by an evil LDS wanting to sell more tanks using a fake DOT licensed inspector.
runsongas
Contributor
ultrasonic examination would be definitive if you can find a retester with the equipment
Similar threads
