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Ramor® 450

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    General Product Description

    Combines ballistic properties with impact toughness.

    Ramor® 450 is a medium-hard protection plate combining ballistic properties with impact toughness, at 8.0 ‑ 16.0 mm (0.315‑0.630″) thick and 400‑480 HBW. Ramor® 450 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
      (min MPaksi)      		 Elongation A5
      (min %)
      Ramor® 450 8.00 - 16.000.315 - 0.630 400 - 480 1000145 1150167 8
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        Mechanical Testing

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

        Hardness is measured on a milled surface 0.3 - 2.0 mm below plate surface.  

        Charpy impact test according to EN ISO 148, 1 test/20 ton. 

        Tensile test according to EN ISO 6892 on each plate and thickness <19.9 mm.

        Impact Properties

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          Thickness
          (mmin)          		 Min impact energy for transversal testing,
          Charpy V 10x10 mm test specimen 1)
          8.00 - 16.000.315 - 0.630 20 J / -40 °C15 ft-lbs / -40 °F
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            Thickness
            (mmin)
            8.00 - 16.000.315 - 0.630
            Min impact energy for transversal testing,
            Charpy V 10x10 mm test specimen 1)
            20 J / -40 °C15 ft-lbs / -40 °F

            1) Impact testing transverse to rolling direction, average value of three tests. Single value min. 70% of specified average.

            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 %)
              0.25 0.70 1.50 0.015 0.010 1.00 2.0 0.70 0.005
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                The steel is grain refined. Phosphorous and sulphur are not intentionally alloying elements.

                Tolerances

                More details are given on www.ssab.com.

                Thickness

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                  Product Type Thickness
                  (mmin)                  		 Tolerance
                  (mmin)
                  Plate 8.00 - 14.90.315 - 0.587 - 0.0 / + 1.0- 0.0 / + 0.0394
                  Plate 15.0 - 16.00.590 - 0.630 - 0.0 / + 1.1- 0.0 / + 0.0433
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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 SSAB’s flatness tolerances 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

                    Ramor is delivered in quenched condition.