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COR-TEN® B-D

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    General Product Description

    With its anti-corrosive properties, COR-TEN® minimizes the need for maintenance and corrosion-prevention treatment, contributing significantly to low maintenance costs throughout the product lifecycle. In addition to low maintenance costs, the reduced need for corrosion prevention means less use of paint and solvents, making COR-TEN® an environmental friendly choice of steel.

    Typical applications are structural components for buildings, transmission poles, bridges and many others.

    Dimension Range

    COR-TEN® B-D is available in thickness 2.00-40.00 mm and width up to 1860 mm as coil, slit coil and cut to length and 3300 mm as plate. Length up to 15 meters as cut to length and 13 meters as plate.

    Mechanical Properties

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      Yield strength ReL
      (min MPa)      		 Tensile strength Rm
      (min MPa)      		 Elongation A50
      (min %)      		 Min. bending radius 90° bend 1)
      345 485 19 2.0 x t
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        The mechanical properties are tested transverse to the direction of rolling.

        1) Valid for material thicknesses up to 30 mm.

        Impact Properties

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          Min. impact energy for longitudinal testing,
          Charpy V 10x10 mm test specimens
          27 J / -20 °C
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            Min. impact energy for longitudinal testing,
            Charpy V 10x10 mm test specimens
            27 J / -20 °C

            The impact properties are tested longitudinal to the direction of rolling.

            Chemical Composition (ladle analysis)

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              C
              (max %)              		 Si
              (%)              		 Mn
              (%)              		 P
              (max %)              		 S
              (max %)              		 Al
              (%)              		 V
              (%)              		 Cu
              (%)              		 Cr
              (%)              		 Ni
              (max %)
              0.19 0.30 - 0.65 0.80 - 1.25 0.035 0.030 0.020 - 0.06 0.02 - 0.10 0.25 - 0.40 0.40 - 0.65 0.40
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                Carbon Equivalent CEV

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                  Delivery form Hot rolled strip Hot rolled plate Hot rolled plate
                  Thickness (mmin) 2 - 150.08 - 0.59 6 - 200.2 - 0.79 20 - 400.79 - 1.6
                  Typical CEV (%) 0.38 0.48 0.50
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                    Tolerances

                    COR-TEN® B-D is delivered with SSAB Weathering tolerances, with improved guarantees compared to corresponding EN standards. More details are available at SSAB.com

                    Thickness

                    Hot rolled Strip: Thickness tolerances correspond to ⅔ of EN 10051 as default value. After special agreement, tolerances down to ½ of EN 10051 can be delivered for certain products and dimensions.

                    Plate: Thickness tolerances that correspond to ¾ of EN 10029 as default value.

                    Length and Width

                    Hot rolled Strip: Width and length tolerances according to SSAB standard which offer narrower tolerances compared to EN 10051.

                    For coil and sheet with mill edge, the width tolerances are corresponding to -0/+20 mm.

                    For coil and sheet with cut edge, the width tolerances are corresponding to -0/+2 mm.

                    Length tolerances only apply for cut to length sheets.

                    Plate: Width tolerance is -0/+4-10mm depending on the thickness. Length tolerances are -0/+15-75mm depending on length.

                    Shape

                    Hot rolled strip: According to EN 10051. Narrower tolerances are available on request.

                    Hot rolled plate: According to EN 10029

                    Flatness

                    Strip: 

                    Flatness tolerances guarantee a maximum flatness deviation of 3 mm/m in addition to the EN 10051 flatness requirements.

                    Flatness guarantees only apply for cut to length sheets.

                    Plate: Max flatness deviation 6 mm/m.

                    Surface Properties

                    According to EN 10163-2 Class A, Subclass 3.

                    Delivery Conditions

                    Coils, slit coils and cut to length: Controlled rolled or thermomechanically rolled.

                    Plate: Hot-rolled, normalized rolled or normalized in furnace.


                    Inspection documents

                    The inspection document shall be specified at the time of order. The European types of inspection documents are defined in the EN 10204 standard.

                    Fabrication and Other Recommendations

                    COR-TEN® B-D has extra corrosion resistance with good formability, toughness and weldability.

                    COR-TEN® is an internationally registered trademark of United States Steel Corporation.

                    For information concerning fabrication, see SSAB´s brochures on www.ssab.com or consult Tech Support.

                    Appropriate health and safety precautions must be taken when bending, welding, cutting, grinding or otherwise working on the products.

                    Contact Information

                    www.ssab.com/contact