I will never make again is to trust a SS chainplate.
It's why they need to be replaced and I assume the point of this original post in the first place is to replace them. Is that your point? It's not always possible to know all the details of a failure and regrettable to have to experience one. Choices made beforehand often are proven wrong but more often not proven at all.
Most boats come with 316 SS plates but if you could afford Titanium it would be a good choice. It's not the most friendly metal to work so carries a rather large premium. The new super stainless plates are a much better choice than 316 for replacement since they would be of similar size and shape and far more resistant to crevice corrosion
. Well made 316 plates as replacement could assure a long life as well.
Metal alloys are all different just as bronze is an alloy and so is steel
. They both have a huge spectrum of variances and alloys and all with a purpose. Not all stainless steel
is even close to the same when it comes to corrosion
resistance. There are alternatives better than just 316. 316 has tight tolerances for the fabrication and that step can be a cause of failure.
Bronze is not entirely superior in all applications else it would be used exclusively. An alternative stainless plate would require no engineering modification to the design of the plates nor the attachment. It would improve the result without modification to the design.
Material is but one element in the total functional package and it would be a mistake to assume all other elements are not significant and could remain the same.