Armox® 370T Class 2

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General Product Description

Armor steel with excellent bendability.

Armox® 370T Class 2 is a rolled homogeneous armor plate (RHA) that combines good resistance to penetration with excellent toughness.

Benefits of Armox® 370T Class 2 include:

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

Armox® 370T Class 2 is not intended for further heat treatment.

Mechanical Properties

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    Thickness
    (inmm)
    Hardness
    (HBW)
    Yield strength Rp0.2
    (min ksiMPa)
    Tensile strength Rm
    (ksiMPa)
    Elongation A5
    (min %)
    Elongation A50
    (min %)
    0.118 - 2.3583.0 - 59.9 280 - 330 116800 130 - 159900 - 1100 13 15
    2.362 - 5.98460.0 - 152.0 280 - 330
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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 10160 Class E3S3 for thicknesses up to 3.149" and E1S2 for > 3.149".

      Impact Properties

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        Thickness
        (inmm)
        Min impact energy, transverse test,
        Charpy V 0.393x0.393" test specimen 1)
        0.236 - 3.9376.0 - 100.0 44 ft-lbs / -40 °F60 J / -40 °C
        3.941 - 5.984100.1 - 152.0 29 ft-lbs / -40 °F40 J / -40 °C
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          Thickness
          (inmm)
          0.236 - 3.9376.0 - 100.0
          Min impact energy, transverse test,
          Charpy V 0.393x0.393" test specimen 1)
          44 ft-lbs / -40 °F60 J / -40 °C
          Thickness
          (inmm)
          3.941 - 5.984100.1 - 152.0
          Min impact energy, transverse test,
          Charpy V 0.393x0.393" test specimen 1)
          29 ft-lbs / -40 °F40 J / -40 °C

          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) 1.80 1) 0.70 0.005
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              1) For plate thicknesses >70 mm Cr ≤ 1.5 and Ni ≤3.5.
              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). Plates with thicknesses over 3.937" are delivered with mill edge as standard.

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

              Armor steel for high penetration resistance and blast protection

              Discover how armor steel and ballistic steel protects people and property from projectiles and explosive charges.