Answer: steel

AnswerCrossword Clue
STEELFencing material
STEELNerve makeup?
STEELBrace (oneself)
STEELHarden
STEELIt's forged
STEELFlak-jacket material
STEELBessemer-process output
STEELKnight's trusty thing
STEELSymbol of strength
STEELBlade metal
STEELDrum material, perhaps
STEELBeam material
STEELGird (oneself)
STEELIron alloy
STEELKind of guitar or drum
STEELShade of gray
STEELSuperman's makeup
STEELHard stuff
STEELIt's often forged
STEELKnife material
steelalloy of iron with carbon
STEELZack Snyder superhero reboot Part II
STEELLike 1943 pennies
STEELPittsburgh export
STEELProduct of Bethlehem
STEELKind of wool
STEELSuperman's makeup?
STEELType of wool
STEELShade of gray or blue
STEELIron-carbon alloy
STEELStainless ...
STEELDrum material
STEELFlatware metal
STEELBethlehem product
STEELSort of drum or band
STEELParadigm of strength
STEELMill material
STEELRailroading need
STEELSuperman comparison
STEELToughness of nerve