the chrome plating is only a few microns thick as is the nickel under it.
many people are under the false impression that chrome (or any other plating- silver, copper etc) will fill in any scratches and smoothe a rough surface, but years working as a platers assistant/polisher/antique silverware restorer, gives me a pretty solid opinion on the matter, and it is a resounding NO!.
chrome over a rough surface is a shiny rough surface, and looks as it sounds- ROUGH. even fingerprints on a polished steel surface can cause oxidation which can then be seen in the finished peice. dont ask me how i know this..... :rolleyes:
the type of steel is not a problem, they even give plastic objects a metallic coating, and then chrome it.
be sure to handle the finished chrome plated object with cotton gloves, getting greasy fingerprints off chrome can cause more scratches than it is worth.