Removing Rust; This works on stainless steel and chrome. I'm not really sure about other metals. All you need is a bucket of water, aluminum foil, and a pair of gloves. Get your rusty piece of furniture and put on your gloves. Next, tear a square of aluminum foil and dunk it in the water until it's completely soaked. And now rub the rust away. It will take some scrubbing, but you will see the rust coming off. And as an additional bonus, the aluminum foil polishes the metal for you.
Simple Cleaning Trick: How to Remove Rust From Chrome in the Bathroom