[TowerTalk] Fwd: Beware Stainless Steel Corrosion.

[Hans Hammarquist via TowerTalk]

Was informed, when I still was sailing, that a crack in a stainless steel turnbuckle could grow 1 inch/hour if oxygen deprived, which can happen if it is covered with sea grass. That means that the turn buckle can snap within minutes even if it was perfect before it got covered. 


I had two heat exchanger for my swimming pool corroded to scrap metal in a few moths myself due to oxygen deprivation.


Hans - N2JFS







-----Original Message-----
From: Kirby Hallenbeck <1sailorman at comcast.net>
To: towertalk <towertalk at contesting.com>
Sent: Sun, Sep 21, 2014 1:22 pm
Subject: [TowerTalk] Beware Stainless Steel Corrosion and reminder on efficient communication.


>We inspect our safety climbs and I will only use stainless steel.


>73 Dave n4zkf

 

Sailors have long known about and been wary of stainless steel corrosion.
Reader's discussion Safety Wire lines may be interested in this brief
article. The primary issue is unless the Stainless Safety line is oxygen,
the oxide layer that protects it is not maintained and corrosion can begin.
This is especially true at wire terminals and where the wire is covered.
Plastic coatings of wire is disallowed on ocean racing boat life lines, as
it can not be inspected. Bare wire is better. 
 
http://www.cruisingworld.com/how/beware-stainless-steel-corrosion

Kirby - AF6OP