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That has to be about the all time stupidest thing I have ever heard. Sand Blasting does work harden the steel making it brittle. This CAN lead to the worst possible type of failure, catastrophic rupture!!! Please tell me who this is so that I can be sure NEVER to fill a tank with one of their stickers on it. I would advise you to stay at least a block or two from this shop at all times. It is an accident waiting to happen. I would also like to take this opportunity to predict the location of the next tank explosion... At 06:08 PM 3/28/2001 , sumpcaver@at*.ne* wrote: >Hello all, > >It seems that there is a shop in my area that likes to >sand blast the interior of steel SCUBA cylinders, even >if there is slight surface rust. Any idea how the tank >manufacturers feel on this? What about the issues of >work hardening?? > >I have sandblasted many different objects with diffent >media in the past, although one thing I have noticed is >that blasted objects seemingly look clean and new while >hiding more oxidation under the surface. > > >I will not even get into their policy regarding O2 >cleaning. > >Erik >sumpcaver@at*.ne* >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. Bill (aquadart) Bott -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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