Armox® 520T

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    General Product Description

    High hardness armor with extraordinary toughness properties.

    Armox® 520T is the world’s toughest protection plate, having nominal 520 HBW hardness, for use in vehicles, buildings and many more applications.

    Benefits of Armox® 520T include: 

    • Market-leading steel protection
    • Superior workshop properties
    • Optimized solutions
    • Perfect hardness/toughness balance, for combined penetration and blast protection
    • Expertise in ballistic protection from SSAB

    It offers vehicle designers new ways to increase protection using lighter weight designs.

    Armox® 520T is not intended for further heat treatment.

    Mechanical Properties

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      Thickness
      (mm)
      Hardness
      (HBW)
      Yield strength Rp0.2
      (min MPa)
      Tensile strength Rm
      (MPa)
      Elongation A5
      (min %)
      4.0 - 12.0 500 - 550 1225 1500 - 1850 8
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        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 6 mm.

        Tensile test according to EN ISO 6892 on each heat.

        Ultrasonic testing

        According to EN ISO 10 160 Class E3S3.

        Impact Properties

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          Thickness
          (mm)
          Min impact energy for transversal testing,
          Charpy V 10x10 mm test specimen 1)
          4.0 - 12.0 27 J / -40 °C
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            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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                Tolerances

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

                Thickness

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                  Thickness
                  (mm)
                  Tolerance
                  (mm)
                  4.0 - 12.0 - 0.0 / + 0.6
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                    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.