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John Henry Irons was the superhero known as Steel, an ally to Superman. Steel was killed during the Joker's attack on Metropolis, his niece Natasha taking up the mantle over five years later after the fall of Superman's regime. [1]

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Superman Family member
This character is or was an incarnation of or an ally of Superman, and a member of the Superman Family. This template will categorize articles that include it into the "Superman Family members" category.