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Strenx performance steel
Strenx performance steel

Strenx® P700

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    General Product Description

    Strenx® P700 is a pressure vessel steel with minimum yield strength of 670 - 700 MPa depending on thickness.

    Strenx® P700 is available in four grades, which meets or exceed the requirements of P690Q, P690QH, P690QL1 and P690QL2 in EN 10028-6.

    Typical applications are demanding loadbearing structures exposed for pressure and elevated temperatures.

    Dimension Range

    Strenx® P700 is available as plate in thicknesses of 4.0 – 100.0 mm, widths up to 3000 mm and lengths up to 14630 mm. More detailed information on dimensions is provided in the dimension program for Strenx® P700 at www.ssab.com.

    Mechanical Properties

    Mechanical properties in room temperature (20°C)

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      Thickness
      (mmin)      		 Yield strength Rp0.2
      (min MPaksi)      		 Tensile strength Rm
      (MPaksi)      		 Elongation A5
      (min %)
      4.0 - 50.00.157 - 1.969 700101 770 - 940111 - 136 14
      50.1 - 100.01.972 - 3.937 67097 770 - 940111 - 136 14
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      Comparison

        For transverse test pieces.

        Yield strength

        Guaranteed minimum yield strength Rp02, in MPa, at elevated temperature only for grade P690QH.

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          Thickness
          (mmin)          		 50°C 100°C 150°C 200°C 250°C 300°C
          4.0 - 50.00.157 - 1.969 670 645 615 595 575 570
          50.1 - 100.01.972 - 3.937 650 625 595 575 555 550
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            For transverse test pieces according to EN 10028.

            If agreed at the time of inquiry and order, these values also apply to the P690QL grades with specified low temperature properties.

            Impact Properties

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              Min impact energy for transversal testing,
              Charpy V 10x10 mm test specimen 1)              		 Meet or exceed the requirements for
              69 J / -20 °C50 ft-lbs / -4 °F P690Q, P690QH
              69 J / -40 °C50 ft-lbs / -40 °F P690QL1
              27 J / -60 °C20 ft-lbs / -76 °F P690QL2
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                Min impact energy for transversal testing,
                Charpy V 10x10 mm test specimen 1)
                69 J / -20 °C50 ft-lbs / -4 °F
                Meet or exceed the requirements for
                P690Q, P690QH
                Min impact energy for transversal testing,
                Charpy V 10x10 mm test specimen 1)
                69 J / -40 °C50 ft-lbs / -40 °F
                Meet or exceed the requirements for
                P690QL1
                Min impact energy for transversal testing,
                Charpy V 10x10 mm test specimen 1)
                27 J / -60 °C20 ft-lbs / -76 °F
                Meet or exceed the requirements for
                P690QL2

                1) Unless otherwise agreed, transverse impact testing according to 10028. For thicknesses between 6.0 - 11.9 mm, sub size Charpy V-specimens are used. The specified minimum value is then proportional 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 %)                  		 Ni*)
                  (max %)                  		 Mo*)
                  (max %)                  		 B*)
                  (max %)                  		 Ti*)
                  (max %)                  		 V*)
                  (max %)
                  0.20 0.80 1.70 0.020 0.005 1.50 2.5 0.70 0.005 0.05 0.12
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                    The steel is grain refined. *) Intentional alloying elements.

                    Carbon Equivalent CET(CEV)

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                      Thickness (mmin) 4.0 - 30.00.157 - 1.181 30.1 - 100.01.185 - 3.937
                      Max CET(CEV) 0.38 (0.57) 0.39 (0.58)
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                        CET and CEV formula

                        Tolerances

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

                        Thickness

                        Tolerances according to EN 10029 Class B. More narrow tolerances are available on request.

                        Length and Width

                        Tolerances conform to 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.

                        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® P700 has bending guarantees according to Strenx® Bending Guarantees Class A. Workshop guidelines for Strenx® P700 refer to the same recommendations as for Strenx® 700 E. Strenx® P700 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 580°C.

                        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.