I pretty clear recollect that LF Herreshof mentioned Tobin Bronze as being good stuff because in the process of rolling it out into sheet metal it became quite uniform in its composition, and so was very predictable. Maybe in "Commonsense of Yacht Design?)
This description is quite similar to what's quoted in post #42 above:
NAVEDTRA 14250 (Non-resident Training Course: Steelworker, Volume 1), the 1996 Navy Steelworker's course, chapter 1, describes Tobin Bronze as being the same as naval brass:
Naval rolled brass (Tobin bronze) contains about 60% copper, 39% zinc, and 0.75% tin. This brass is highly corrosion-resistant and is practically impurity free."
A very desirable quality in any construction material is consistency. Isn't that the central problem with stainless steel...some pieces hold up beautifully for a long time, others from the same lot, in the same application, go all to Hell in a couple years. And you can't tell which piece will do what.