Dynamic Armor 46100® (Dynamic MIL-A-46100) is a high hardness ballistic steel plate product that is available in thicknesses from 3/16” through 2” (4.7mm through 50mm). This specialty plate product is specifically designed for lightweight armor applications that require maximum resistance to ballistic threats. Dynamic Armor MIL-A-46100 plates exhibit a superior combination of ballistic resistance, hardness, formability, weldability, toughness and flatness. Dynamic Armor 46100 plate is produced using an optimum combination of carbon and alloy content, to offer a maximum resistance to ballistic penetration.


Ballistic Resistance of Dynamic Armor MIL-A-46100

Dynamic Armor 46100® plate is designed to exceed the ballistic requirements set forth in the MIL-DTL-46100E specification; this includes previous revisions to the specification.

Click here for the ballistics threat protection levels brochure.



Dynamic Armor 46100® plate has a Brinell hardness range of 477-534 and a nominal hardness of 500 BHN.


Dynamic Armor 46100 C Mn P S Si Ni Cr Mo Cu
3/16″ – 2″ Thickness
4.7mm – 50.8mm
.25/.31 1.10 0.020 0.010 0.40 1.50 1.50 1.00 0.25


Thickness Carbon Equivalent
3/16″ – 2″
4.7mm – 50.8mm
CE = 0.65 Typical CE = C + Mn/6 + (Cr + Mo + V)/5 + (Cu + Ni)/15


Mechanical Properties

(Typical in a .75″ thick plate)

Tensile strength = 245 ksi (1,689 MPa)
Yield strength = 205 ksi (1,413 MPa)
Elongation = 10%
Impact toughness = 25 ft-lbs (34 J) Longitudinal (LCVN) at -40°F (-40°C)
20 ft-lbs (27 J) Tranvers (LCVN) at -40°F (-40°C)



Dynamic Armor 46100® plate is produced to ½ ASTM A6 Commercial Flatness Tolerances.


Production Size Capacity

Dynamic Armor 46100® plate is produced in thicknesses from 3/16” (4.7mm) through 2” (50.8mm) and in widths from 72” through 120”. Thicknesses of 5/16” and less have a maximum width of 96”. Standard thicknesses include 3/16”, ¼”, 5/16”, 3/8” ½”, 5/8”, ¾”, 1”, 1-1/4”, 1-1/2”, 1-3/4” and 2”. Maximum length is 600”. Standard pattern widths and lengths are 96” x 288”, 96” x 240” and 96” x 480”. Metric and other sizes are available on inquiry (* – inquire on 3/16”, ¼” and 5/16” sizes for availability).


Thermal Cutting

Dynamic Armor 46100® plate can be thermally cut using conventional methods of laser, plasma, and oxy-fuel cutting techniques provided that the minimum plate temperature is +60°F prior to cutting.


Cold Forming

Following good shop forming practices and uniform load application, Dynamic Armor 46100® plate can be formed to a minimum radius of 4*t against a bend line transverse to the rolling direction and 6*t against a bend line that is parallel to the rolling direction, for thicknesses ≤5/16”. For thicknesses >5/16” Dynamic Armor 46100® plate can be formed to a minimum radius of 6*t against a bend line transverse to the rolling direction and 8*t against a bend line that is parallel to the rolling direction. Good shop practices include a minimum plate temperature of +60°F, grinding plate edges, conditioning and lubricating form dies and applying uniform bending force. The recommended minimum bottom die opening should be at least 16 times the plate thickness. Because of the enhanced mechanical properties of this plate, the bending forces required to form the plate will be greater and more plate “springback” can be expected to occur.



Dynamic Armor 46100® plate can be welded using conventional welding practices such as SMAW, GMAW and SAW provided low hydrogen filler metal and welding practices are employed. Interpass temperatures should not exceed 400°F and postweld heat treatment is not recommended if the original hardness levels are to be maintained.



Dynamic Armor 46100® plate is used in a variety of lightweight armor applications where maximum protection and resistance to ballistic threats is critical such as: armored personnel carriers, tanks, tactical combat vehicles, armored municipal & government vehicles, personal armored cars, armored cabs, etc.

The information is for reference purposes only. Please inquire for specific capabilities to meet your needs.



Dynamic Armor is not produced to a military standard. Dynamic Armor has been successfully tested against the firing requirements of various ballistic standards on a heat lot per thickness basis.
Ballistic tests are performed by 3rd party testing facility.
The chart above should be used as a guide to material selection, but in no way guarantees steel performance in these conditions.

Notice: Due to the wide variety of projectiles and the fact that ballistic performance is not a quantitative science, Dynamic Armor makes no guarantee or warranties as to the ballistic capabilities of Dynamic Armor plate. Dynamic Armor personnel will provide mill certificates and the independent 3rd party ballistic test results, on a heat lot basis, to demonstrate the typical ballistic performance against various ballistic standards, which can be used as a guide in material selection.

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