Strenx performance steel
Strenx performance steel

Strenx® 700 E/F

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Strenx® 700 E/F high-strength structural steel

Strenx® 700 E/F is a high-strength structural steel with a minimum yield strength of 650-700 MPa depending on thickness. The steel offers superior bendability, surface quality and weldability with excellent HAZ strength and toughness. The exceptional consistency within a plate is guaranteed by close tolerances and high impact toughness provides for good resistance to fractures. Strenx® 700 E meet or exceed the requirements of the standard EN 10025-6 where Strenx® 700 E conforms to grade S690QL and Strenx® 700 F conforms to grade S690QL1. Typical applications include demanding load-bearing structures.

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Dimension Range

Strenx® 700 E is available in plate thicknesses of 4.0 – 160.0 mm and Strenx® 700 F is available in plate thicknesses of 4.0 - 130.0 mm. Both grades are available in widths up to 3350 mm and lengths up to 14630 mm depending on thickness. More detailed information on dimensions is provided in the dimension program.

Mechanical Properties

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    Thickness
    (mmin)
    Yield strength Rp0.2
    (min MPaksi)
    Tensile strength Rm
    (MPaksi)
    Elongation A5
    (min %)
    4.0 - 53.00.157 - 2.087 700101 780 - 930113 - 135 14
    53.1 - 100.02.091 - 3.937 65094 780 - 930113 - 135 14
    100.1 - 160.03.940 - 6.299 65094 710 - 900102 - 130 14
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      For transverse test pieces.

      Impact Properties

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        Product Min impact energy for transversal testing,
        Charpy V 10x10 mm test specimen 1)
        Meet Requirements For
        Strenx® 700 E 69 J / -40 °C50 ft-lbs / -40 °F S690QL
        Strenx® 700 F 27 J / -60 °C20 ft-lbs / -76 °F S690QL1
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          1) Unless otherwise agreed, transverse impact testing according to EN 10025-6 option 30 will apply. For thicknesses between 6 - 11.9 mm, sub-size Charpy V-specimens are used. The specified minimum value is then proportrional to the cross-sectional area of the specimen compared to a full-size specimen (10 x 10 mm).

          Chemical Composition (ladle analysis)

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            C *)
            (max %)
            Si *)
            (max %)
            Mn*)
            (max %)
            P
            (max %)
            S
            (max %)
            Cr*)
            (max %)
            Cu*)
            (max %)
            Ni*)
            (max %)
            Mo*)
            (max %)
            B*)
            (max %)
            0.20 0.60 1.60 0.020 0.010 0.80 0.30 2.0 0.70 0.005
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              The steel is grain refined. *) Intentional alloying elements.

              Carbon Equivalent CET(CEV)

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                Thickness (mmin) 4.0 - 5.00.157 - 0.197 5.1 - 30.00.201 - 1.181 30.1 - 60.01.185 - 2.362 60.1 - 100.02.366 - 3.937 100.1 - 130.03.940 - 5.118 130.1 - 160.05.122 - 6.299
                Strenx® 700 E Max CET(CEV) 0.34 (0.48) 0.32 (0.49) 0.36 (0.52) 0.39 (0.58) 0.41 (0.67) 0.43 (0.73)
                Strenx® 700 F Max CET(CEV) 0.38 (0.57) 0.38 (0.57) 0.39 (0.58) 0.39 (0.58) 0.41 (0.67)
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                  Tolerances

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

                  Thickness

                  Tolerances according to Strenx® Thickness Guarantees.

                  Strenx® Guarantees meet the requirements of EN 10029 Class A, but offers narrower tolerances.

                  Length and Width

                  According to SSAB’s dimension program. Tolerances conform with EN 10029 or to SSAB’s standard after agreement. 

                  Shape

                  Tolerances according to EN 10029.

                  Flatness

                  Tolerances according to Strenx® Flatness Guarantee Class C, which are more narrow than EN 10029 Class N.

                  Flatness tolerances for Strenx® 700 F are guaranteed after cutting with laser, plasma or waterjet.

                  Surface Properties

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

                  Delivery Conditions

                  The delivery condition is Quenched and Tempered. The plates are delivered with sheared or thermally cut edges. Untrimmed edges after agreement.

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

                  Fabrication and Other Recommendations

                  Welding, bending and machining

                  Recommendations are found in SSAB’s brochures at www.ssab.com or consult Tech Support.

                  Strenx® 700 E/F has bending guarantees according to Strenx® Bending Guarantees Class A. Strenx® 700 E/F has obtained its mechanical properties by quenching and subsequent tempering. The properties of the delivery condition cannot be retained after exposure to temperatures in excess of 580ºC.

                  Appropriate health and safety precautions must be taken when welding, cutting, grinding or otherwise working on this product. Grinding, especially of primer coated plates, may produce dust with a high particle concentration.

                  Ready to upgrade?

                  Upgrading from Strenx® 700 E/F to Strenx® 900 E/F means you can improve the performance and reduce the weight of your equipment. The increase in yield strength by almost 30% allows for a substantial increase in the equipment’s load-bearing capacity. Get in touch with our steel specialists at SSAB Tech Support or SSAB Knowledge Service Center for an update on upgrading.

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