[TowerTalk] FW: Silver vs Aluminum vs Copper Re: OT: Inductor Calculator

[Raymond Benny]

Matt,

I have not heard of chromium washers. Where do you purchase them?

Ray,
N6VR



On Sat, Mar 2, 2019, 9:03 PM Matt <maflukey at gmail.com> wrote:

> When the surface area of the anode is relatively large compared to the
> cathode, galvanic corrosion is generally not a problem when the stainless
> is
> cathodic.   Hence using relatively small 18-8 stainless fasteners on
> aluminum elements or galvanized structures generally presents little
> interaction provided that the assembly is not in a salt laden or heavy
> chloride environment.   The British Stainless Steel Association has
> published some scholarly articles on this subject as well as NACE.
>
> I regularly use high chromium stainless washers to isolate copper from
> aluminum or zinc galvanize without issue.  A generous application of no-ox
> compound provides added protection and if using stainless threaded
> fasteners, anti-seize compound is a must.
>
> 73
> Matt
> KM5VI
>
>
>
>
>
>
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of
> john at kk9a.com
> Sent: Friday, March 01, 2019 9:05 PM
> To: towertalk at contesting.com
> Subject: [TowerTalk] Silver vs Aluminum vs Copper Re: OT: Inductor
> Calculator
>
> Very true but I believe that most antenna manufactures use these materials
> together.
>
> John KK9A
>
>
> Bert Balmemo VE3NR wrote:
>
> Stainless steel and aluminum don't go well together - galvanic corrosion!
>
> Bert VE3NR
>
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