The iron in dreams is very important omen. The iron could indicate something very strict and harsh. Alternatively, the iron can be interpreted as the symbol of power and enthusiasm. If the iron which you see in the dream is red and hot, then such dream represents some kind of failure at some situation. If the iron is old and rusty, then it shows unsolved problems you havent deal with yet.
Read more about dreaming of Iron in other dream meanings interpretations.