There are at least two artists who share the alias, "Cast Iron".
1. Cast Iron - A traditional heavy metal band in the vein of Running Wild from Hämeenlinna, Finland.
They also have a bandcamp page at http://castironheavymetal.bandcamp.com.
2. Cast Iron (aka Cast Iron Projects) - A grime/experimental group consisting of the following members; Cast Iron (DJ/Producer/MC), Christopher Benns (Manager/PR), Flash Gordan (DJ/Producer), Kizza (MC/Producer).
They also have a MySpace page at http://www.myspace.com/castironspace. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.