Allegheny technologies incorporated [ati] is one of the world`s largest and most diversified producers of specialty metals. Armor materials are designed to resist penetration by bullets and other ballistic projectiles. The metallurgical structure of these products is designed to break or flatten and capture the projectile. Armor material - steel armor plate is a wrought, air-hardenable ni-cr-mo material that is similar in hardness and ballistic properties to a 500bhn "high-hard" armor steel. The balanced composition of the alloy leads to very high toughness relative to other "high-hard" alloys while maintaining excellent ballistic resistance.
Armor Material - Steel Armor Plate - Indian Products Directory