aluminum and steel conduit

[buddhakii]

I have to run a bunch of aluminum conduit in a waste water plant. I would like to come out of the electrical room with grs nippled just through the block wall so I don't have to worry about concrete being in contact with aluminum. Is there anything wrong with threading aluminum conduit into a steel fitting? Any other suggestions are appreciated.

 

[tkb]

344.10(B)(2) Supplementary Protection of Aluminum RMC.
Aluminum RMC shall be provided with approved supplementary corrosion protection where encased in concrete or in direct contact with the earth.

344.14 Dissimilar Metals
Where practicable, dissimilar metals in contact anywhere in the system shall be avoided to eliminate the possibility of galvanic action. Aluminum fittings and enclosures shall be permitted to be used with steel RMC, and steel fittings and enclosures shall be permitted to be used with aluminum RMC where not subject to severe corrosive influences.