Here is another thought on this: If you are considering stainless thimbles,
I would say you need to consider stainless wire rope clips (cable clamps)
too. And then, what about stainless turnbuckles? Stainless earth anchors?
SOMEWHERE you have to have stainless touching galvanized unless you want a
stainless tower . . . !
Stan w7ni@teleport.com
Kurt Andress wrote:
> Jim wrote:
>
> > I just thought of something on the stainless steel guys. If we use
> > the old galvanized thimble eyes or metal grommets (not sure what the
> > correct term is) that go at each end of the guy to keep it from
> > getting bent into too tight of a loop at the anchoring point, could
> > the galvanized material and stainless material cause dissimiliar
> > metal problems such as copper and aluminum do?
> >
> > Jim
> > AA0JG
>
> Hi Jim,
>
> I wish everyone went down to the library and got a copy of the Galvanic
> Series.
> This was discussed at length in a post earlier this year.
>
> Yes, there is a potential problem. It will be difficult to determine how
> bad it can be until the nature of the stainless material is known (either
> passive or active).
>
> Regardless of the type, both are far enough away from the zinc (used to
> make something galvanized) to have enough potential to experience
> galvanic corrosion.
>
> So, the answer is to go get some stainless thimbles to use with the
> stainless wire rope. Both the stainless rope and the thimble need to be
> either both active or both passive to eliminate the problem. If one is
> active and the other is passive, you end up just about as bad off as if
> you had used the galvanized thimbles.
>
> Sorry the answer is not simpler. Not my fault!
> Somebody else designed the world we live in.
>
> 73, Kurt
>
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