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Originally Posted by Etacovda
Im not, if you read my orginal post  Its purely for the top, for machining purposes. |
Yah I noticed that, but it in your last post it seemed like you were going to use it for base material too.
There is the possibility of brass dezincification, though. I'm no corrosion expert so I'm not sure how likely it is, but keep it in mind. Basically it's the removal of zinc from a brass alloy, leaving behind a porous copper piece. It can cause your brass to turn into a copper sponge and leak throgh the pores.
Conditions favoring dezincification are contact with slightly acid or alkaline water. Not highly aerated, low rates of flow of the circulating liquid, relatively high tube-wall temperatures and permeable deposits or coatings over the tube surface.
[Taken from
http://www.corrosion-doctors.org/Forms/dezinc.htm]