Galvanic Corrosion - AN Power Steering Fittings - Aluminum and Steel

[bsampson]

I'm doing a hydroboost conversion for brakes, which uses the power steering system. I was planning to use flexible tubing cut to length and AN fittings. I ordered a few plumbing parts not thinking about a problem combining different metals. It was hard enough to find the right fittings at a reasonable price.

I ended up with aluminum fittings, and now to get lines rated at a working pressure 1500 psi+, most ends are steel.

Is there going to be a problem mixing aluminum and steel AN fittings? Or is galvanic corrosion something that wouldn't be an issue for many years?