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Armox® 440T

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    General Product Description

    Blast protection plate.

    Armox® 440T combines excellent penetration and shock resistance. It offers vehicle designers new ways to increase protection using lighter weight designs.

    Benefits of using Armox® 440T include: 

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

    Armox® 440T 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 %)
      4.0 - 30.00.157 - 1.1810 420 - 480 1100159 1250 - 1550181 - 224 10 12
      30.1 - 50.01.185 - 1.968 420 - 480 1050152 1250 - 1550181 - 224 10 12
      50.1 - 80.01.972 - 3.150 420 - 480 1000145 1250 - 1550181 - 224 10 12
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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 6 mm.

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

        Ultrasonic testing

        According to EN 10160 Class E3S3.

        Impact Properties

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          Thickness
          (mmin)          		 Min impact energy for transversal testing,
          Charpy V 10x10 mm test specimen 1)
          4.0 - 80.00.157 - 3.150 45 J / -40 °C33 ft-lbs / -40 °F
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            Thickness
            (mmin)
            4.0 - 80.00.157 - 3.150
            Min impact energy for transversal testing,
            Charpy V 10x10 mm test specimen 1)
            45 J / -40 °C33 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 %)
              0.21 0.50 1.20 0.010 0.003 1.0 2.50 0.70 0.005
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                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
                  (mmin)                  		 Tolerance
                  (mmin)
                  4.0 - 12.90.157 - 0.509 - 0.0 / + 0.6- 0.0 / + 0.0236
                  13.0 - 20.00.512 - 0.787 - 0.0 / + 0.8- 0.0 / + 0.0315
                  20.0 - 40.00.791 - 1.575 - 0.0 / + 1.0- 0.0 / + 0.0393
                  40.1 - 59.91.578 - 2.358 - 0.0 / + 1.4- 0.0 / + 0.0551
                  60.0 - 80.02.362 - 3.150 - 0.0 / + 1.6- 0.0 / + 0.0630
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                  Comparison

                    Thickness
                    (mmin)
                    4.0 - 12.90.157 - 0.509
                    Tolerance
                    (mmin)
                    - 0.0 / + 0.6- 0.0 / + 0.0236
                    Thickness
                    (mmin)
                    13.0 - 20.00.512 - 0.787
                    Tolerance
                    (mmin)
                    - 0.0 / + 0.8- 0.0 / + 0.0315
                    Thickness
                    (mmin)
                    20.0 - 40.00.791 - 1.575
                    Tolerance
                    (mmin)
                    - 0.0 / + 1.0- 0.0 / + 0.0393
                    Thickness
                    (mmin)
                    40.1 - 59.91.578 - 2.358
                    Tolerance
                    (mmin)
                    - 0.0 / + 1.4- 0.0 / + 0.0551
                    Thickness
                    (mmin)
                    60.0 - 80.02.362 - 3.150
                    Tolerance
                    (mmin)
                    - 0.0 / + 1.6- 0.0 / + 0.0630

                    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.