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SwampRunner

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 Post subject: Nobility Scale
PostPosted: 27 Sep 2016, 23:21 
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Joined: 15 May 2010, 00:38
Posts: 2621
Location: Central Florida
Have seen a bunch of posts about "what screws do I use in Aluminum" etc. and a bit here and there about corrosion between metals.
Guys and Gals, there is a simple scale out there called a Nobility Scale that rates (metals) from anodic (corrodes away) to cathodic (sticks around).
Take a look at any one of the scales on the web and pick out the metal you want to fasten to and find the metal closest to it on the scale for the attaching hardware.
The closer together the metals are the less potential between them. The farther away from each other on the scale the more potential (or corrosion)
Pretty simple!

http://www.corrosion-doctors.org/Defini ... series.htm


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 Post subject: Nobility Scale
PostPosted: 27 Sep 2016, 23:30 
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Joined: 21 Apr 2012, 17:11
Posts: 1087
Location: rural SW Wisconsin
This should be a sticky.

TYVM, Pappy.



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1955 Alumacraft Model A
http://www.tinboats.net/forum/viewtopic ... 08&start=0
1959 Alumacraft Model F
http://www.tinboats.net/forum/viewtopic.php?f=3&t=25386
1980 Alumacraft Model F7, 1955-56? Johnson 10hp
viewtopic.php?f=4&t=35326
1956 Alumacraft Model RB
http://www.tinboats.net/forum/viewtopic.php?f=3&t=39249
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 Post subject: Nobility Scale
PostPosted: 28 Sep 2016, 06:23 

Joined: 29 Dec 2011, 17:29
Posts: 650
Humm, according to the chart Steel is a better choice than SS.


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