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10-07-2008, 11:00 AM #1Troublemaker
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As Bruno said, because the law requires it. As for carbon versus stainless steel, what's the difference?
Originally Posted by Kees
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10-07-2008, 12:13 PM #2
I think oxidation 'could' be an issue with carbon steel. For stainless it wouldn't matter. Originally Posted by Chimensch
But if you didn't want to get a wet autoclave because of the price, the point is moot.Til shade is gone, til water is gone, Into the shadow with teeth bared, screaming defiance with the last breath.
To spit in Sightblinder’s eye on the Last Day
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10-07-2008, 01:20 PM #3Senior Member
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Oxidation is an issue with carbon steel in a steam autoclave. Dipping the needles in a rust preventative prior to bagged sterilization was the solution to the problem.
To kill the bugs the material MUST be sterilized at 265 Fahrenheit or more.Be careful how you treat people on your way up, you may meet them again on your way back down.
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10-07-2008, 08:21 PM #4Member
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It depends on the steel, of course, but in general a heat treat to 473 °F or 245 °C for any period of time will probably decrease the hardness very slightly. Meaning a Rockwell C hardness of 58 instead of 60 or 62. No big deal. As Russel Baldridge pointed out, Rc of 52 or something can be used for shaving. It might actually be easier to hone and stop, if it lasts perhaps marginally less long. (For what it's worth my dad was a metallurgist witha PhD, none of which transferred to me.)
I say that if that's what the law requires, do it, and see what differences you notice, and let us hear about your experiences!
Matt
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