Answer: manganese

AnswerCrossword Clue
MANGANESE

Grayish white metal used to harden steel.

MANGANESE

Metal used for hardening steel.

MANGANESE

Metal important to steel industry.

MANGANESE
Nonmagnetic metal.
MANGANESE
An element.
MANGANESEMetal for hardening steel.
MANGANESESteel ingredient.
MANGANESEIngredient of steel
MANGANESEElement used by steelmakers
MANGANESEElement used in many alloys
MANGANESEIron's preceder on the periodic table
MANGANESEElement between chromium and iron on the periodic table
MANGANESEElement next to iron on the periodic table