and ubiquitous. Carry it for emergency repairs
. It is stronger, in general, than either stainless or bronze and easier to cut, file and drill. If you fabricate a repair out of aluminum
you can often protect it with a good protectant spray which will last until you cross the Pacific or Indian oceans before rusting into a state of structural concern. Even steel pillow-block bearings can be mounted outboard
of the vessel with protectant on it and survive sufficiently long to let you get "there".