Old as Dirt!
Join Date: Nov 2008
Location: Tampa Bay Area
Thanked 149 Times in 141 Posts
Rep Power: 9
Brass has no place on a boat save in bells, horns, light fixtures (perhaps), fancy work or buttons.
From an engineering view point, the best material is bronze which has more than adaquate strength and none of the problems that SS is subject to in the given application. As most don't care for the green look, however, 316 Stainless is often chosen although, if you rigging is galvanized, bronze might be accepteable. Galvanized mild steel won't last long enough to be worth the effort. Whatever your choice, if you had crevice corrosion in the existing chain plates, check your bulkheads to ensure you don't have rot there from water intrusion that needs repair before you install the new chain plates. Also, there is a good article in the current edition of Good Old Boat on how to build footing pads for chain plates that can help prevent water intrusion around the deck plates that you might want to look into. If I remember correctly, these should work on an Islander 24.
"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
Last edited by svHyLyte; 04-16-2009 at 01:55 PM.