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Docol® 1700M martensitic

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    General Product Description

    A martensitic steel for automotive applications, Docol 1700M allows for increased crashworthiness, lightweight design and cost-efficient production methods for the automotive industry. Docol 1700M is one of the strongest cold rolled advanced high-strength steels on the market and has become the material of choice for automotive applications such as bumper systems and structural components.

    Dimension Range

    Cold rolled / UC: thickness 1.00-2.10 mm, width up to 1250 mm.

    Mechanical Properties

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      Standard Coating Test direction
      		 Yield strength Rp0.2
      (MPa)      		 Tensile strength Rm
      (MPa)      		 Elongation A80
      (min %)      		 BH2
      (min MPa)      		 Min. inner bending radius for a 90° bend
      Docol CR​1350Y​1700T-​MS VDA 239-100 UC L 1350 - 1700 1700 - 2000 3 30 4.0 x t
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        Chemical Composition (ladle analysis)

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          Coating C
          (max %)          		 Si
          (max %)          		 Mn
          (max %)          		 P
          (max %)          		 S
          (max %)          		 Al
          (%)          		 Nb+Ti
          (max %)          		 Cr+Mo
          (max %)          		 B
          (max %)          		 Cu
          (max %)
          Docol CR​1350Y​1700T-​MS UC 0.35 1.00 3.00 0.020 0.010 From 0.010 0.15 1.00 0.010 0.20
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            Tolerances

            Cold rolled (UC): Tolerances in accordance to EN 10131.

            Customized dimensional and shape tolerances are available upon request.

            The following improved flatness tolerances are available for cold rolled martensitic products upon request. The tolerances are valid for mother coils only before slitting.

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              Thickness
              (mmin)              		 Max height 1)
              (mm)
              1.00 - 1.390.0394 - 0.0547 8
              1.40 - 1.590.0551 - 0.0626 7
              1.60 - 1.790.0630 - 0.0705 6
              1.80 - 2.100.0709 - 0.0827 5
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              Comparison

                Thickness
                (mmin)
                1.00 - 1.390.0394 - 0.0547
                Max height 1)
                (mm)
                8
                Thickness
                (mmin)
                1.40 - 1.590.0551 - 0.0626
                Max height 1)
                (mm)
                7
                Thickness
                (mmin)
                1.60 - 1.790.0630 - 0.0705
                Max height 1)
                (mm)
                6
                Thickness
                (mmin)
                1.80 - 2.100.0709 - 0.0827
                Max height 1)
                (mm)
                5

                1) Distance from the top surface of the strip normal to flat surface. Measured with a ruler on sheets of mother coil width and minimum length 1200 mm. Cross bow and coil set excluded.

                Surface Treatments

                Uncoated (UC): available as oiled.

                All surface treatments are in accordance with RoHS directive (2011/65/EU) and do not contain Chromium VI (Cr6+). Surface treatments provide only temporary surface protection during transportation and storage. In order to avoid corrosion damages, care must be taken to keep the products dry during transportation and storage. If they become wet, they must be separated and situated so that they are dried quickly.

                Fabrication and Other Recommendations

                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.

                Docol® Martensitic steel product offer

                Docol® 900M martensitic

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                Docol® 1100M martensitic

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                Docol® 1200M martensitic

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                Docol® 1300M martensitic

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                Docol® 1400M martensitic

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                Docol® 1500M martensitic

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                Docol® 1700M martensitic

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