Strenx® Tube 700MLH

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General Product Description

Strenx® Tube 700MLH is an HF-welded cold-formed structural hollow section made of hot-rolled high-strength steel with a minimum yield strength of 700 MPa.

Its high strength combined with naturally stiff form of welded hollow section enables construction of stronger and lighter structures. Strenx® Tube 700MLH meets or exceeds the requirements o EN 10219-3 (2020) and it is CE marked according to EN 1090-2. Typical applications include load-bearing structures in the lifting, handling and transportation segments, especiallyin conditions that require extremely good toughness.

Strenx® Tube 700MLH is available in circular, square and rectangular shapes. Other shapes and sizes are available upon request.

The maximum length of the tubes is 12-18 meters, depending on the size. Longer or cut-to-length tubes are available upon request.

Hot dip galvanizing Strenx® Tube 700MLH hollow sections maylead to cracking. Please consult SSAB Tech Support prior galvanization.

Dimension Range

Strenx® Tube 700MLH is available at circular, square and rectangular shapes.
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    Shapes Dimensions
    Circular (mmin) 42.4 - 323.91.669 - 12.752
    Square (mmin) 40x40 - 300x3001.575x1.575 - 11.811x11.811
    Rectangular (mmin) 50x30 - 400x2001.969x1.181 - 15.748x7.874
    Wall thickness (mmin) 2.0 - 10.00.079 - 0.393
    Mill length (mmin) 6000 - 12000 / 18000236.220 - 472.440 / 708.660
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      Shapes
      Circular (mmin)
      Dimensions
      42.4 - 323.91.669 - 12.752
      Shapes
      Square (mmin)
      Dimensions
      40x40 - 300x3001.575x1.575 - 11.811x11.811
      Shapes
      Rectangular (mmin)
      Dimensions
      50x30 - 400x2001.969x1.181 - 15.748x7.874
      Shapes
      Wall thickness (mmin)
      Dimensions
      2.0 - 10.00.079 - 0.393
      Shapes
      Mill length (mmin)
      Dimensions
      6000 - 12000 / 18000236.220 - 472.440 / 708.660

      Other shapes and sizes are available upon request. 

      Circular Dimensions

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        Outer diameter (mmin) 2.0 mm (kg/m) 3.0 mm (kg/m) 4.0 mm (kg/m) 5.0 mm (kg/m) 6.0 mm (kg/m) 8.0 mm (kg/m) 10.0 mm (kg/m)
        42.41.669 1.99
        48.31.902 2.28 3.35
        60.32.374 2.88 4.24 5.55
        76.12.996 5.41 7.11
        88.93.500 6.36 8.38 10.4
        101.64.000 7.29 9.63 11.9
        108.04.252 7.77 10.3 12.7
        114.34.500 8.23 10.9 13.5
        127.05.000 9.17 12.1 15.0
        139.75.500 13.4 16.6 19.8 26.0 32.0
        168.35.500 16.2 20.1 24.0 31.6 39.0
        219.18.626 26.4 31.5 41.7 51.6
        273.010.748 33.1 39.5 52.3 64.9
        323.912.752 47.0 62.3 77.4
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          Square Dimensions

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            Height x Width (mmin) 2.0 mm (kg/m) 3.0 mm (kg/m) 4.0 mm (kg/m) 5.0 mm (kg/m) 6.0 mm (kg/m) 8.0 mm (kg/m) 10.0 mm (kg/m)
            40 x 401.575 x 1.575 2.31 3.41
            50 x 501.969 x 1.969 2.93 4.38 5.45
            60 x 602.362 x 2.362 5.35 6.71
            70 x 702.756 x 2.756 6.33 7.97
            80 x 803.150 x 3.150 7.30 9.22 11.3
            90 x 903.543 x 3.543 8.27 10.5 12.8
            100 x 1003.937 x 3.937 9.25 11.7 14.4 17.0 21.4
            120 x 1204.724 x 4.724 14.3 17.6 20.8 26.4 31.8
            140 x 1405.512 x 5.512 16.8 20.7 24.5 31.4 38.1
            150 x 1505.906 x 5.906 18.0 22.3 26.4 34.0 41.3
            160 x 1606.299 x 6.299 19.3 23.8 28.3 36.5 44.4
            180 x 1807.087 x 7.087 27.0 32.1 41.5 50.7
            200 x 2007.874 x 7.874 30.1 35.8 46.5 57.0
            220 x 2208.661 x 8.661 39.6 51.5 63.2
            250 x 2509.843 x 9.843 45.2 59.1 72.7
            300 x 30011.811 x 11.811 71.6 88.4
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              Rectangular Dimensions

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                Height x Width (mmin) 2.0 mm (kg/m) 3.0 mm (kg/m) 4.0 mm (kg/m) 5.0 mm (kg/m) 6.0 mm (kg/m) 8.0 mm (kg/m) 10.0 mm (kg/m)
                50 x 301.969 x 1.181 2.41 3.41
                60 x 402.362 x 1.575 2.93 4.38 5.45
                80 x 403.150 x 1.575 5.35 6.71
                80 x 603.150 x 2.362 6.33 7.97
                100 x 503.937 x 1.969 6.81 8.59
                100 x 603.937 x 2.362 7.30 9.22 11.30
                100 x 803.937 x 3.150 8.27 10.5 12.8
                120 x 604.724 x 2.362 8.27 10.5 12.8
                120 x 804.724 x 3.150 9.25 11.7 14.4 17.0 21.4
                150 x 1005.906 x 3.937 14.9 18.3 21.7 27.7 33.4
                160 x 806.299 x 3.150 14.3 17.6 20.8 26.4
                180 x 1007.087 x 3.937 16.8 20.7 24.5 31.4 38.1
                200 x 1007.874 x 3.937 18.0 22.3 26.4 34.0 41.3
                200 x 1207.874 x 4.724 19.3 23.8 28.3 36.5 44.4
                250 x 1009.843 x 3.937 26.2 31.11 40.23 49.11
                250 x 1509.843 x 5.906 30.1 35.8 46.5 57.0
                260 x 18010.236 x 7.087 39.6 51.5 63.2
                300 x 20011.811 x 7.874 45.2 59.1 72.7
                400 x 20015.7480 x 7.874 71.6
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                  Mechanical Properties

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                    Yield strength Rp0.2
                    (min MPaksi)
                    Tensile strength Rm
                    (MPaksi)
                    Elongation A5 1)
                    (min %)
                    Strenx® Tube 700MLH 700101 750 - 950109 - 138 10
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                      1) The hollow sections with D/T < 15 (round) or (B + H)/2T < 12,5 (rectangular and square), the minimum value of elongation is reduced by 2.

                      The mechanical properties for rectangular hollow sections are tested by SSAB on the longer side of the cross section.

                      Mechanical properties meet the requirements of EN 10219-3 (2020).

                      Impact Properties

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                        Product Min impact energy for transversal testing,
                        Charpy V 10x10 mm test specimen
                        Strenx® Tube 700MLH 27 J / -50 °C20 ft-lbs / -58 °F
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                          Product
                          Strenx® Tube 700MLH
                          Min impact energy for transversal testing,
                          Charpy V 10x10 mm test specimen
                          27 J / -50 °C20 ft-lbs / -58 °F

                          1) Impact testing according to EN ISO 148-1 is performed on thicknesses ≥ 6 mm. The specified minimum value corresponds to a full-size specimen.

                          Chemical Composition (ladle analysis)

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                            C
                            (max %)
                            Si
                            (max %)
                            Mn
                            (max %)
                            P
                            (max %)
                            S
                            (max %)
                            Nb
                            (max %)
                            V
                            (max %)
                            Ti
                            (max %)
                            0.12 0.25 2.10 0.020 0.010 0.090 1) 0.20 1) 0.15 1)
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                              1) Sum of Nb, V and Ti = max 0.22%

                              Chemical composition meets or exceeds the requirements of EN 10219-3 (2020).

                              In addition, boron (B), molybdenum (Mo), nickel (Ni) or copper (Cu) may be used as alloying elements either singly or in combination.

                              The steel is grain refined.

                              Carbon Equivalent CET(CEV)

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                                Wall Thickness (mm) 2.0 - 10.00.079 - 0.394
                                Typ CET(CEV) 0.24 (0.38)
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                                  Wall Thickness (mm)
                                  Typ CET(CEV)
                                  2.0 - 10.00.079 - 0.394
                                  0.24 (0.38)

                                  Tolerance Circular

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                                    Characteristic Circular hollow sections
                                    Tolerances meet or exceed the requirements of EN 10219
                                    Outside diameter (D) (1 ±1%, with a minimum of ±0.5 mm and a maximum of ±10 mm
                                    Out-of-roundness 2%, when D/T ≤ 100
                                    Thickness (T) When D ≤ 323.9 mm: -5%/+10%, with a minimum of ±0.2 mm and maximum ±0.5 mm
                                    When 355.6 ≤ D ≤ 406.4 mm : ±10%, when T ≤ 5 mm / ±0.5 mm, when T > 5 mm
                                    When D > 406.4 mm : ±10%, with a maximum of ±2 mm
                                    Straightness 0.20% of total length and 3 mm over any 1 m length
                                    Mass per unit length Individual tube: ±6%
                                    Mill length 0/+50 mm, 6000 ≤ L ≤ 12000 - 18000 mm (standard lengths 6000 & 12000 mm)
                                    Exact length Agreed at the time of enquiry and order
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                                      Characteristic
                                      Outside diameter (D) (1
                                      Circular hollow sections
                                      Tolerances meet or exceed the requirements of EN 10219
                                      ±1%, with a minimum of ±0.5 mm and a maximum of ±10 mm
                                      Characteristic
                                      Out-of-roundness
                                      Circular hollow sections
                                      Tolerances meet or exceed the requirements of EN 10219
                                      2%, when D/T ≤ 100
                                      Characteristic
                                      Thickness (T)
                                      Circular hollow sections
                                      Tolerances meet or exceed the requirements of EN 10219
                                      When D ≤ 323.9 mm: -5%/+10%, with a minimum of ±0.2 mm and maximum ±0.5 mm
                                      When 355.6 ≤ D ≤ 406.4 mm : ±10%, when T ≤ 5 mm / ±0.5 mm, when T > 5 mm
                                      When D > 406.4 mm : ±10%, with a maximum of ±2 mm
                                      Characteristic
                                      Straightness
                                      Circular hollow sections
                                      Tolerances meet or exceed the requirements of EN 10219
                                      0.20% of total length and 3 mm over any 1 m length
                                      Characteristic
                                      Mass per unit length
                                      Circular hollow sections
                                      Tolerances meet or exceed the requirements of EN 10219
                                      Individual tube: ±6%
                                      Characteristic
                                      Mill length
                                      Circular hollow sections
                                      Tolerances meet or exceed the requirements of EN 10219
                                      0/+50 mm, 6000 ≤ L ≤ 12000 - 18000 mm (standard lengths 6000 & 12000 mm)
                                      Characteristic
                                      Exact length
                                      Circular hollow sections
                                      Tolerances meet or exceed the requirements of EN 10219
                                      Agreed at the time of enquiry and order

                                      1) All external dimensions are measured with a minimum distance from the end of the section. The distance must be a minimum of 100 mm.

                                      Tolerance Square

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                                        Characteristic Square hollow sections
                                        Tolerances meet or exceed the requirements of EN 10219
                                        Outside dimensions (B, H) 1) When B, H < 100 mm ±1 % minimum ±0.5 mm
                                        When 100 mm ≤ B, H ≤ 200 mm: ±0.8%
                                        When B, H > 200 mm: ±0.6%
                                        Thickness (T) -5% / +10 %, with a minimum of ±0.2 mm and maximum ±0.5 mm
                                        External corner profile When T ≤ 6 mm: 1.6 x T–2.4 x T
                                        When 6 mm < T ≤ 10 mm: 2.0 x T-3.0 x T
                                        When T > 10 mm: 2.4 x T–3.6 x T
                                        Squareness of side 90° ±1°
                                        Concavity/convexity 0.8%, with a minimum of 0.5 mm
                                        Twist 2 mm + 0.5 mm/m
                                        Straightness 0.15% of total length and 3 mm over any 1 m length
                                        Mass per unit length Individual tube: ±6%
                                        Mill length 0/+50 mm, 6000 ≤ L ≤ 12000 - 18000 mm (standard lengths 6000 & 12000 mm)
                                        Exact length Agreed at the time of enquiry and order
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                                          Characteristic
                                          Outside dimensions (B, H) 1)
                                          Square hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          When B, H < 100 mm ±1 % minimum ±0.5 mm
                                          When 100 mm ≤ B, H ≤ 200 mm: ±0.8%
                                          When B, H > 200 mm: ±0.6%
                                          Characteristic
                                          Thickness (T)
                                          Square hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          -5% / +10 %, with a minimum of ±0.2 mm and maximum ±0.5 mm
                                          Characteristic
                                          External corner profile
                                          Square hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          When T ≤ 6 mm: 1.6 x T–2.4 x T
                                          When 6 mm < T ≤ 10 mm: 2.0 x T-3.0 x T
                                          When T > 10 mm: 2.4 x T–3.6 x T
                                          Characteristic
                                          Squareness of side
                                          Square hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          90° ±1°
                                          Characteristic
                                          Concavity/convexity
                                          Square hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          0.8%, with a minimum of 0.5 mm
                                          Characteristic
                                          Twist
                                          Square hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          2 mm + 0.5 mm/m
                                          Characteristic
                                          Straightness
                                          Square hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          0.15% of total length and 3 mm over any 1 m length
                                          Characteristic
                                          Mass per unit length
                                          Square hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          Individual tube: ±6%
                                          Characteristic
                                          Mill length
                                          Square hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          0/+50 mm, 6000 ≤ L ≤ 12000 - 18000 mm (standard lengths 6000 & 12000 mm)
                                          Characteristic
                                          Exact length
                                          Square hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          Agreed at the time of enquiry and order

                                          1) All external dimensions are measured with a minimum distance from the end of the section. The distance must be a minimum of 100 mm.

                                          Tolerance Rectangular

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                                            Characteristic Rectangular hollow sections
                                            Tolerances meet or exceed the requirements of EN 10219
                                            Outside dimensions (B, H) 1) When B, H < 100 mm ±1 % minimum ±0.5 mm
                                            When 100 mm ≤ B, H ≤ 200 mm: ±0.8%
                                            When B, H > 200 mm: ±0.6%
                                            Thickness (T) -5% / +10 %, with a minimum of ±0.2 mm and maximum ±0.5 mm
                                            External corner profile When T ≤ 6 mm: 1.6 x T–2.4 x T
                                            When 6 mm < T ≤ 10 mm: 2.0 x T-3.0 x T
                                            When T > 10 mm: 2.4 x T–3.6 x T
                                            Squareness of side 90° ±1°
                                            Concavity/convexity 0.8%, with a minimum of 0.5 mm
                                            Twist 2 mm + 0.5 mm/m
                                            Straightness