I meant cast in a mold rather than pounded or forged. I didn't realize cast iron and wrought iron were different types of the metal:
Wrought Iron: n: having a low carbon content that is tough and malleable and so can be forged and welded.
Cast iron (Metal.), an impure variety of iron, containing from three to six percent of carbon, part of which is united with a part of the iron, as a carbide, and the rest is uncombined, as graphite. It there is little free carbon, the product is white iron; if much of the carbon has separated as graphite, it is called gray iron.