Re: [Paddlewise] Skeg vs. rudder (plus maint. question)

From: Steve Jernigan <jernigan_at_chester.uccs.edu>
Date: Wed, 12 Apr 2000 09:20:42 -0600
At 05:53 PM 04/11/2000 -0000, Sailboat Restorations, Inc. wrote:
>That's interesting.  What tome is this?  I have the Caribou, as well, so I
>am a bit concerned.  But I have been working on sailboats for many years,
>and I have never heard it said that ss exposed to salt water "is notorious
>for its degradation."  Quite the contrary, I have always understood that ss
>is one of the best substances to use in a marine environment, second only to
>bronze, and preferable to bronze where certain types of strength are
>required.  Indeed, most modern sailboats use little or no bronze, and use ss
>for most everything.  For example, most sailboats use ss prop shafts.  These
>are actually *under* the water all the time, and they generally last a very
>very very long time.  I'm not suggesting you (or the tome) are wrong, I
>would just like to learn a little more about the context and the actual
>point that the book in question is making.  Thanks.
>Mark L.

Hi Mark et al!
There are more different "stainless" steels than you can imagine, with
varying degrees of corrosion resistance. The 300 series steels have
probably the best properties in this regard. Look for hardware in 316$$. If
you are still experiencing severe corrosion problems with this material,
then something besides salt water is at work. Note that even dilute
concentrations of HCl will corrode 316 stainless eventually, and stainless
is subject to anodic corrosion as well.
When in doubt, check the hardware with a magnet; the 316 material is
totally non-magnetic.
Hope this helps.
ByeBye! S.
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Received on Wed Apr 12 2000 - 08:24:46 PDT

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