Armox® 370T Class 1

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    General Product Description

    Rolled homogeneous armor for vehicles.

    Armox® 370T Class 1 is a rolled homogeneous armor plate (RHA) that combines good resistance to penetration with excellent toughness.

    Benefits of Armox® 370T Class 1 include:

    • Market-leading steel protection
    • Superior workshop properties
    • Optimized solutions
    • Expertise in ballistic protection from SSAB

    Armox® 370T Class 1 is not intended for further heat treatment.

    Mechanical Properties

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      Thickness
      (inches)
      Hardness
      (HBW)
      Yield strength Rp0.2
      (min ksi)
      Tensile strength Rm
      (ksi)
      Elongation A5
      (min %)
      Elongation A50
      (min %)
      0.118 - 0.153 380 - 430 145 166 - 195 8 8
      0.157 - 0.232 380 - 430 145 166 - 195 10 10
      0.236 - 0.783 380 - 430 145 166 - 195 10 12
      0.787 - 1.570 340 - 390 130 152 - 181 11 13
      1.575 - 2.3580 300 - 350 123 137 - 166 12 14
      2.362 - 3.937 300 - 350
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      Comparison

         

        Mechanical Testing

        Brinell hardness test according to EN ISO 6506-1 on each heat treatment individual.

        Charpy impact test according to EN ISO 148 on each heat and thickness from 0.236".

        Tensile test according to EN ISO 6892 on each heat and thickness under 0.783".

        Ultrasonic testing

        According to EN ISO 10 160 Class E3S3 for thicknesses up to 3.149" and E1S2 for > 3.149".

        Impact Properties

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          Thickness
          (inches)
          Min impact energy, transverse test,
          Charpy V 0.393x0.393" test specimen 1)
          0.118 - 0.783 15 ft-lbs / -40 °F
          0.787 - 3.937 30 ft-lbs / -40 °F
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          Comparison

            Thickness
            (inches)
            0.118 - 0.783
            Min impact energy, transverse test,
            Charpy V 0.393x0.393" test specimen 1)
            15 ft-lbs / -40 °F
            Thickness
            (inches)
            0.787 - 3.937
            Min impact energy, transverse test,
            Charpy V 0.393x0.393" test specimen 1)
            30 ft-lbs / -40 °F

            1) Average of three tests. Transverse to rolling direction. Single value min. 70% of specified average. For plate thicknesses under 0.472" sub-size Charpy-V specimen are used. The specified minimum value is then propotional to the specimen cross-section.

            Chemical Composition (heat analysis)

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              C *)
              (max %)
              Si *)
              (max %)
              Mn*)
              (max %)
              P
              (max %)
              S
              (max %)
              Cr*)
              (max %)
              Ni*)
              (max %)
              Mo*)
              (max %)
              B*)
              (max %)
              0.32 0.40 1.20 0.010 0.003 1.0 1.80 0.70 0.005
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              Comparison

                The steel is grain-refined. *) Intentional alloying elements.

                Tolerances

                More details are given in SSAB´s brochure Armox® Guarantees or on www.ssab.com.

                Thickness

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                  Thickness
                  (inches)
                  Tolerance
                  (inches)
                  0.118 - 0.508 - 0.0 / + 0.0315
                  0.512 - 0.783 - 0.0 / + 0.0394
                  0.787 - 1.571 - 0.0 / + 0.0472
                  1.575 - 2.358 - 0.0 / + 0.0630
                  2.362 - 3.145 - 0.0 / + 0.0788
                  3.149 - 3.937 - 0.0 / + 0.0945
                  Compare parameters

                  Select one parameter to compare

                  Comparison

                    Thickness
                    (inches)
                    0.118 - 0.508
                    Tolerance
                    (inches)
                    - 0.0 / + 0.0315
                    Thickness
                    (inches)
                    0.512 - 0.783
                    Tolerance
                    (inches)
                    - 0.0 / + 0.0394
                    Thickness
                    (inches)
                    0.787 - 1.571
                    Tolerance
                    (inches)
                    - 0.0 / + 0.0472
                    Thickness
                    (inches)
                    1.575 - 2.358
                    Tolerance
                    (inches)
                    - 0.0 / + 0.0630
                    Thickness
                    (inches)
                    2.362 - 3.145
                    Tolerance
                    (inches)
                    - 0.0 / + 0.0788
                    Thickness
                    (inches)
                    3.149 - 3.937
                    Tolerance
                    (inches)
                    - 0.0 / + 0.0945

                    Length and Width

                    According to SSAB´s dimension program.

                    • Tolerances conform to EN 10029 or to SSAB´s standard after agreement.
                    • Dimensional tolerances for plate with mill edge according to special agreement. 

                    Shape

                    Tolerances according to EN 10029.

                    Flatness

                    Tolerances according to Armox® flatness guarantees, which are more restrictive than EN 10029 Class N (steel type L).

                    Surface Properties

                    According to EN 10163-2 Class B Subclass 3.

                    Delivery Conditions

                    The delivery condition is QT (Quenched and Tempered).

                    Delivery requirements can be found in SSAB’s brochure Armox® Guarantees or www.ssab.com.