Strenx® 700MC D/E

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General Product Description

The high-strength structural steel at 700 MPa

Strenx® 700MC D/E is a hot-rolled structural steel made for cold forming, with a minimum yield strength of 700 MPa for stronger and lighter structures. Strenx® 700MC D/E meets or exceeds the requirements of S700MC in EN 10149-2.

Typical applications include a wide range of components and parts, such as demanding load-bearing structures. Strenx® 700MC D/E comes in coils, slit coils or cut-to-length sheets.

Dimension Range

Strenx® 700MC D/E is available in thicknesses of 0.079” – 0.393” and widths up to 62.992" as coils, slit coils or cut to length sheets in lengths up to 629.92".

Mechanical Properties

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    Thickness
    (inmm)
    Yield strength ReH 1)
    (min ksiMPa)
    Tensile strength Rm
    (ksiMPa)
    Elongation A80 2)
    (min %)
    Elongation A5 3)
    (min %)
    Min. inner bending radius for a 90° bend 4)
    0.079 - 0.1182.00 - 3.00 101700 109 - 138750 - 950 10 12 0.8 x t
    0.119 - 0.2363.01 - 6.00 101700 109 - 138750 - 950 12 1.2 x t
    0.237 - 0.3936.01 - 10.00 101700 109 - 138750 - 950 12 1.6 x t
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      The mechanical properties are tested in the longitudinal direction.

      1) If ReH is not applicable then Rp0.2 is used. On thicknesses >0.315" the minimum yield strength may be 2.9 ksi lower.

      2) A80 value applies for thicknesses < 3.00 mm.

      3) A5 value applies for thicknesses ≥ 3.00 mm.

      4) For both longitudinal and transverse direction.

      Impact Properties

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        Product Min. impact energy for longitudinal testing,
        Charpy V 0.393x0.393" test specimen 1)
        Strenx® 700MC D 29 ft-lbs / -4 °F40 J / -20 °C
        Strenx® 700MC E 20 ft-lbs / -40 °F27 J / -40 °C
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          Product
          Strenx® 700MC D
          Min. impact energy for longitudinal testing,
          Charpy V 0.393x0.393" test specimen 1)
          29 ft-lbs / -4 °F40 J / -20 °C
          Product
          Strenx® 700MC E
          Min. impact energy for longitudinal testing,
          Charpy V 0.393x0.393" test specimen 1)
          20 ft-lbs / -40 °F27 J / -40 °C

          1) Impact testing according to EN ISO 148-1 is performed on thicknesses ≥ 0.236". The specified minimum value corresponds to a full-size specimen.

          Chemical Composition (heat analysis)

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            C
            (max %)
            Si
            (max %)
            Mn
            (max %)
            P
            (max %)
            S
            (max %)
            Altot
            (min %)
            Nb
            (max %)
            V
            (max %)
            Ti
            (max %)
            0.12 0.21 1) 2.10 0.020 0.010 0.015 0.09 2) 0.20 2) 0.15 2)
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              1) If the material is to be hot-dip galvanized according to category A or category B in EN 10149-2 this must be specified at the time of order.Other galvanizing classes with higher Si-content are available after agreement.

              2) Sum of Nb, V and Ti = max 0.22%.

              The steel is grain refined.

              Carbon Equivalent CET(CEV)

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                Thickness (inmm) 0.079 - 0.3932.00 - 10.00
                Typ CET(CEV) 0.25 (0.39)
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                  Thickness (inmm)
                  Typ CET(CEV)
                  0.079 - 0.3932.00 - 10.00
                  0.25 (0.39)
                  CET and CEV formula

                  Tolerances

                  More details are given in SSAB’s brochure Strenx® Guarantees.

                  Thickness

                  Tolerances according to Strenx® Thickness Guarantee.

                  Strenx® Guarantees offer considerably narrower thickness tolerances compared to EN 10051. 

                  Length and Width

                  Width and length tolerances according to SSAB standard.

                  SSAB standard offer narrower width and length tolerances compared to EN 10051.

                  Length tolerances only apply for cut to length sheets.

                  Shape

                  Tolerances according to EN 10051. Narrower tolerances according to the SSAB standard are available on request.

                  Flatness

                  Tolerances according to Strenx® Flatness Guarantee Class A.

                  Strenx® Flatness Guarantee offer narrower tolerances compared to EN 10051.

                  Flatness guarantees only apply for cut to length sheets. 

                  Surface Properties

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

                  Delivery Conditions

                  Thermomechanically Rolled. Strenx® 700MC D/E is available in as rolled or pickled surface condition with mill or cut edge.

                  Delivery requirements can be found in SSAB’s brochure Strenx® Guarantees or on www.ssab.com.

                  Fabrication and Other Recommendations

                  Welding, bending and machining

                  Strenx® 700MC D/E has good welding, cold forming and cutting performance.

                  Strenx® 700MC D/E is a cold forming steel not suited for heat treatments at temperatures above 1076°F since the material then may lose its guaranteed properties.

                  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.