Originally Posted by Jim Cate
I'm surprised that in this learned discussion, no one has mentioned 2205 duplex stainless as chainplate material. This alloy is stronger, stiffer and more corrosion
resisitant than 316L, and is ideally suited to chainplate fabrication, especially if said plates are to be buried or sealed in way of deck
penetrations. While a bit pricier than 316, is is far cheaper than Titanium.
Jim, thanks for mentioning it. I've not actually come across 2205 ss, but from a brief search it sounds like this metal has potential due to it's higher resistance to crevice corrosion
. Arguably such corrosion is the number one concern with internal chainplates.
You say pricier than 316 - is it more than double the price
, and do you have experience of using it for anything?