Does Gallium (liquid or solid) corrode all forms of brass? I know that it corrodes copper, but does it do the same to all brass or bronze compositions?
From here 


  Gallium is corrosive to all metals except tungsten and tantalum, which have a high resistance to corrosion.


Beta-Brass is embrittled by Gallium

Due to its highly reducing character it is highly corrosive material.