Christopher Albers wrote:
> b_s_d(at)hotmail.com writes:
> >Other than sleeve material (Stainless vs Brass), the work is pretty
> >much
> >the same.
>
> I have heard that there can be a galvanic reaction between aluminum and
> stainless that causes corrosion. But it is my understanding that it
> takes a very long time to occur unless certain conditions exist that
> accelerate it. I'm not sure what those conditions are, maybe an
> electrical current running through the part? I'm sure Jarrid knows the
> answer. Jarrid?
>
> Christopher
Any disimilar metal will yeild a galvanic reaction with time and suitible
chemical medium.
This is accelerated with water in your brake fluid, which acts as an
electrolite.
As a matter of preference, and overall use, for aluminum, I'd suggest
stainless over brass, as it is more chemically inert, generally a harder
material, and has a more similar
electron valance compared to the copper alloy in brass.
This will lead to less electrolitic activity.
Probably costs more to machine,. but I suspect it will last an order of
magnetude
longer.
Jarrid Gross
This archive was generated by hypermail 2b30 : Tue Sep 05 2000 - 10:44:20 CDT