The most widely known Steel is a weapons engineer named John Henry Irons who became a super-hero to emulate Superman, fighting crime as a member of Team Superman. Designing an advanced exo-skeleton, he wields a number of technological gadgets including a Kinetic Hammer. His niece Natasha Irons has also taken up the identity. He has also been a member of the Justice League, S.T.A.R. Labs and the Suicide Squad. Steel was created by Louise Simonson and Jon Bogdanove, first appearing during the Reign of the Supermen! storyline in Adventures of Superman #500. (1993) There is also a hero previously named Steel named Hank Heywood who first appeared in Steel #1.