When you want to paint or restore an outdoor sheet metal deck that has rust,?

what are the steps to follow?When you want to paint or restore an outdoor sheet metal deck that has rust,?
It depends on how must rust. If it is has a scales or is powdery, clean with a wire brush and blow or vacuum off the residue. It does not have to be perfect. Then use a rust inhibiting primer followed by paint. If no scales or powder just clean, prime, and paint.