Docol® 800DH dual phase with high formability

More about dual phase with high formability steel

Download data sheet

Select Language

Get datasheet by email
Close

Get datasheet by email

    General Product Description

    Docol 800DH trip assisted dual-phase steels provide improved formability and weldability and are suitable for car safety and structural components.

    This steel undergoes a special heat treatment producing mainly two-phase structure. Ferrite that imparts unique forming properties represents one phase and martensite that accounts for the strength represents the other phase. Small amount of bainite and retained austenite improves formability further.

    Dimension Range

    Cold rolled / GI: thickness 0.80-2.40 mm, width up to 1400 mm.

    Slit strip and cut to length sheets are available upon request.

    Grade and coating specific restrictions on available dimensions may occur.

    Mechanical Properties

    Hide/Show specific columns Edit
    Select columns to display
      Standard Coating Test direction
      Yield strength Rp0.2
      (MPa)
      Tensile strength Rm
      (MPa)
      Elongation A80
      (min %)
      n4-6
      (min)
      n10-20/Ag
      (min)
      BH2
      (min MPa)
      Docol CR​440Y​780T-​DH VDA 239-100 GI L 440 - 550 780 - 900 18 0.18 0.13 30
      Compare parameters

      Select one parameter to compare

      Comparison

        Chemical Composition (ladle analysis)

        Hide/Show specific columns Edit
        Select columns to display
          Coating C
          (max %)
          Si
          (max %)
          Mn
          (max %)
          P
          (max %)
          S
          (max %)
          Al
          (%)
          Nb+Ti
          (max %)
          Cr+Mo
          (max %)
          B
          (max %)
          Cu
          (max %)
          Docol CR​440Y​780T-​DH GI 0.18 0.80 2.50 0.050 0.010 0.015 - 1.00 0.15 1.40 0.005 0.20
          Compare parameters

          Select one parameter to compare

          Comparison

            Tolerances

            Hot-dip galvanized (GI): Tolerances in accordance to EN 10143.

            Customized dimensional and shape tolerances are available upon request.

            Coatings

            The metal coating options for Docol products include:

            Hot-dip zinc coating (GI) consists almost entirely of zinc (>99%). It is lead free, resulting in a small zinc spangle size. The coating provides good corrosion protection.

            Grade specific availability of metal coatings for Docol products is given in the Mechanical properties table (Coating).

            Hide/Show specific columns Edit
            Select columns to display
              Coating type Coating class Standard Closest in EN 10346, informative Coating mass per side, single spot test (g/m2) Thickness per side informative (µm) Density (g/cm3) Surface quality (U = unexposed, E = exposed)
              GI 40/40 VDA 239-100 Z100 40 - 60 1) 5.6 - 8.5 7.1 U
              GI 50/50 VDA 239-100 50 - 70 1) 7.0 - 9.9 7.1 U
              GI 60/60 VDA 239-100 Z140 60 - 90 8.5 - 12.7 7.1 U
              GI 70/70 VDA 239-100 70 - 100 9.9 - 14.1 7.1 U
              GI 85/85 VDA 239-100 85 - 115 12.0 - 16.2 7.1 U
              GI 115/115 VDA 239-100 Z275 115 - 155 16.2 - 21.8 7.1 U
              Compare parameters

              Select one parameter to compare

              Comparison

                In addition to these coating masses, asymmetric coatings and OEM coating specifications are available upon request.

                1) For hot-dipped (GI, ZA, GA) hot rolled (HR) grades, the coating mass tolerance is increased to 30 g/m² by increasing the upper limit.

                Surface Treatments

                Hot-dip galvanized (GI): available as oiled and/or chemically passivated.

                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® dual phase with high formability steel product offer

                Docol® 600DH dual phase with high formability

                Docol® 800DH dual phase with high formability

                Related content