Re: [Paddlewise] Stainless steel corrosion (was Skeg vs Rudder)

My take on SS is pure, rustfree, SS is very soft.  I had a diver knife that was guaranteed NOT to rust.  It was also guaranteed NOT to hold an edge.  The more carbon that is mixed in the stronger, harder and rustier the SS.  A Swiss Army knife will hold an edge AND rust pretty fast.  It'll also deviate a compass, but that's another story?

Steve Scherrer
Alder Creek Kayak and Canoe
250 NE Tomahawk Isle Dr
Portland, OR  97217

Phone: 503.285.0464
Fax: 503.285.0106
Web site: http://www.aldercreek.com
Email: acks_at_teleport.com


______________________________________________
----- Original Message ----- 
From: "Seng, Dave" <DSeng_at_health.state.ak.us>
To: "Sailboat Restorations, Inc." <sailboatrestorations_at_worldnet.att.net>; "PaddleWise" <PaddleWise_at_lists.intelenet.net>
Sent: Tuesday, April 11, 2000 4:36 PM
Subject: RE: [Paddlewise] Stainless steel corrosion (was Skeg vs Rudder)


> I think that if you re-read Dave's original statement you might find that he
> was commenting not so much on stainless steel in general, but rather the
> issue of rust in cables, composed of stainless steel, and commonly employed
> in marine environments.  I think the key was his reference to "crevice
> corrosion".......
> 
> I don't think that any of us who live and paddle around salt water would
> deny that SS is the strongest most rust-resistant metal commonly available
> for out tools and toys, but the stuff _does_ rust.  There are different
> grades of SS with widely different corrosion resistance, but my dad's the
> ME, not me.  Any other engineering types out there than can expand our
> knowledge base on the different SS grades?  
> 
> Dave Seng
> Juneau, Alaska
> 
> Sailboat Restorations, Inc. wrote:
> 
> > 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, 
>  
> Dave Kruger originally wrote:
> > >I've been reading a tome on marine corrosion, and stainless 
> > steel cable
> > exposed
> > >to salt water is notorious for its degradation -- and 
> > sometimes from the
> > inside
> > >out (look up "crevice corrosion" on the Web, if you want 
> > more detail). 
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