You certainly can, but why? Kitchen floors need to be washed, and steel will be slippery and unforgiving should glass drop. Also, even galvanized steel will rust - you'll be replacing parts...
Avg. cost to fully renovate an avg. size kitchen is about $17,000. This is everything: flooring, refacing the cabinets, counters, sink, paint, lighting fixtures, plumbing fixtures. Not everything is...