Steel man is a foe of the Hulk. He and the Hulk have fought. He is made of a titanium alloy to protect him from harm, the reason why he is made out of steel is unknown. Red Hulk kills Steel Man. Retrieved from "https://hulk.fandom.com/wiki/Steel_man?oldid=6324" Categories: Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.