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
    (mmin)
    Hardness
    (HBW)
    Yield strength Rp0.2
    (min MPaksi)
    Tensile strength Rm
    (MPaksi)
    Elongation A5
    (min %)
    Elongation A50
    (min %)
    3.0 - 3.90.118 - 0.153 380 - 430 1000145 1150 - 1350 8 8
    4.0 - 5.90.157 - 0.232 380 - 430 1000145 1150 - 1350 10 10
    6.0 - 19.90.236 - 0.783 380 - 430 1000145 1150 - 1350 10 12
    20.0 - 39.90.787 - 1.570 340 - 390 900130 1050 - 1250 11 13
    40.0 - 59.91.575 - 2.3580 300 - 350 850123 950 - 1150 12 14
    60.0 - 100.02.362 - 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 148-1 on each heat and thickness from 6 mm.

      Tensile test according to EN ISO 6892-1 on each heat and thickness under 60 mm.

      Ultrasonic testing

      According to EN 10160 Class E3S3 for thicknesses up to 80 mm and E1S2 for > 80 mm.

      Impact Properties

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        Thickness
        (mmin)
        Min impact energy for transversal testing,
        Charpy V 10x10 mm test specimen 1)
        3.0 - 19.90.118 - 0.783 20 J / -40 °C15 ft-lbs / -40 °F
        20.0 - 100.00.787 - 3.937 40 J / -40 °C30 ft-lbs / -40 °F
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        Comparison

          Thickness
          (mmin)
          3.0 - 19.90.118 - 0.783
          Min impact energy for transversal testing,
          Charpy V 10x10 mm test specimen 1)
          20 J / -40 °C15 ft-lbs / -40 °F
          Thickness
          (mmin)
          20.0 - 100.00.787 - 3.937
          Min impact energy for transversal testing,
          Charpy V 10x10 mm test specimen 1)
          40 J / -40 °C30 ft-lbs / -40 °F

          1) Average of three tests. Transverse to rolling direction. Single value min. 70% of specified average. For plate thicknesses under 12 mm sub-size Charpy-V specimen are used. The specified minimum value is then propotional to the specimen cross-section.

          Chemical Composition (ladle 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 brochure Armox® Guarantees or on www.ssab.com.

              Thickness

              Tolerances according to Armox® Thickness Guarantees.

              Armox® Guarantees meet the requirements of EN 10029 Class C, but offers narrower tolerances.

              Length and Width

              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.