{Stus-List} Disimilar Metals

Bill Coleman coltrek at verizon.net
Mon Jun 8 18:31:51 EDT 2009


This would probably be fine if you remove it when you leave the boat -
Otherwise I would use the SS and tefgel.

Bill Coleman
C&C 39


-----Original Message-----
From: cnc-list-bounces at cnc-list.com [mailto:cnc-list-bounces at cnc-list.com]
On Behalf Of Ronald B. Frerker
Sent: Monday, June 08, 2009 6:19 PM
To: cnc-list at cnc-list.com
Subject: Re: {Stus-List} Disimilar Metals



I checked the old electromotive series and don't find much difference
between iron and nickel (.4 vs .3).  And given the iron is stainless, would
probably make them even closer. Given the insulator value, probably doesn't
matter which. But either way, worth keeping an eye on to see what happens.
Any other chemists out there with more specific knowledge? Ron Wild Cheri


--- On Mon, 6/8/09, Dave Kuchenbecker <dkuchen1 at gmail.com> wrote:

> From: Dave Kuchenbecker <dkuchen1 at gmail.com>
> Subject: Re: {Stus-List} Disimilar Metals
> To: cnc-list at cnc-list.com
> Date: Monday, June 8, 2009, 4:40 PM
> Won't matter if you use
> "tefgel"  sp????
> 
> 
> On Mon, Jun 8, 2009 at 12:00 PM,
> Stu <stu at cncphotoalbum.com>
> wrote:
> 
> 
> 
> We came across a small piece of boating equipment in 2 different 
> metals -- stainless steel and Nickel-plated steel.  This item is to be 
> mounted on aluminum.
>  
> What reaction can we expect in years to come and
> should we use stainless steel screws to mount it.
>  
> Stainless steel costs $23.00.  Nickel-plate costs
> $1.45.
>  
> Stu



      

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