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Armor Material - Steel Armor Plate

Allegheny Ludlum K12® Dual-Hardness Armor Plate material has an extensive history of successful use in armored cars and similar equipment. ATI 500-MIL™ steel 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
Alloy
(UNS Designation)
End Use Composition
nominal wt%
Specifications Density
lb/in3 (g/cm3)
Tensile
Strength
ksi. (MPa)
0.2% Yield
Strength
ksi. (MPa)
Elong-
ation %
Hardness
K12® - Armor Plate

Military and civilian armoring applications Ni-Cr-Mo 0.284
(7.86)
148
(1020)
130
(900)
14.5


 

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