SSAB Domex® Tube Double Grade

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General Product Description

SSAB Domex Tube Double Grade is structural hollow section.

It meets or exceeds the requirements of standard EN 10219 and includes two separate modern steel grades: S355J2H and S420MH. The choice of grade depends on the customer's or designer's application and requirements.

When your main goal is excellent usability or simplicity of design, grade S355 presents the best choice. If you are looking for considerable weight reduction and longer spans, consider selecting grade S420MH.

Welding and other workshop instructions and regulations like welding procedure test (ISO 15614-1), material classification (ISO 15608), welding qualification (EN 287-1; ISO 9606-1) and EN 1090 certification procedure must follow the appropriate steel grade S355 or S420 selected.

Welding in corner areas is always permitted when using SSAB steels.

Dimension Range

SSAB Domex Tube Double Grade is available in circular, square and rectangular shapes.

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    Shapes Dimensions
    Circular (mmin) 42.4 - 323.91.67 - 12.75
    Square (mmin) 40x40 - 300x300
    Rectangular (mmin) 50x30 - 400x200
    Wall thickness (mmin) 2.0 - 12.500.079 - 0.4921
    Mill length (mm) 6000/12 000 mm
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      Shapes
      Circular (mmin)
      Dimensions
      42.4 - 323.91.67 - 12.75
      Shapes
      Square (mmin)
      Dimensions
      40x40 - 300x300
      Shapes
      Rectangular (mmin)
      Dimensions
      50x30 - 400x200
      Shapes
      Wall thickness (mmin)
      Dimensions
      2.0 - 12.500.079 - 0.4921
      Shapes
      Mill length (mm)
      Dimensions
      6000/12 000 mm

      Other shapes, sizes and lengths are available upon request.

      Circular Dimensions

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        Outer diameter (mmin) 2.0 mm (kg/m) 2.5 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) 12.5 mm (kg/m)
        42.41.67 1.99 2.46 2.91
        48.31.90 2.28 2.82 3.35 4.37
        60.32.37 2.88 3.56 4.24 5.55 6.82
        76.13.00 3.65 4.54 5.41 7.11 8.77 10.4
        88.93.50 6.36 8.38 10.4 12.3
        101.64.000 7.29 9.63 11.9 14.2
        1084.25 7.77 10.3 12.7 15.1
        114.34.500 8.23 10.9 13.5 16.0
        1275.00 9.17 12.1 15.0 17.9
        139.75.500 13.4 16.6 19.8 26.0 1) 32.0 1)
        168.36.626 16.2 20.1 24.0 31.6 39.0 1)
        219.18.626 21.2 26.4 31.5 41.7 51.6 1) 63.7 1)
        244.59.626 35.3 46.7 57.8 71.5
        27310.7 26.5 33.1 39.5 52.3 64.9 1) 80.3 1)
        323.912.75 39.3 47.0 62.3 77.4 1) 96.0
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          1) Available only for SSAB Domex Tube S420MH.

          Square Dimensions

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            Height x Width (mm) 2.0 mm (kg/m) 2.5 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) 12.5 mm (kg/m)
            40 x 40 2.31 2.82 3.30 4.20
            50 x 50 2.93 3.60 4.25 5.45 6.56
            60 x 60 3.56 4.39 5.19 6.71 8.13
            70 x 70 6.13 7.97 9.70
            80 x 80 7.07 9.22 11.3 13.2
            90 x 90 8.01 10.5 12.8 15.1
            100 x 100 8.96 11.7 14.4 17.0 21.4
            120 x 120 14.3 17.6 20.8 26.4 31.8
            140 x 140 16.8 20.7 24.5 31.4 38.1
            150 x 150 18.0 22.3 26.4 34.0 41.3 48.7
            160 x 160 19.3 23.8 28.3 36.5 44.4 52.6
            180 x 180 27.0 32.1 41.5 50.7 60.5
            200 x 200 30.1 35.8 46.5 57.0 68.3
            220 x 220 39.6 51.5 63.2 76.2
            250 x 250 45.2 59.1 72.7 88.0
            300 x 300 54.7 71.6 88.4 108
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              Rectangular Dimensions

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                Height x Width (mm) 2.0 mm (kg/m) 2.5 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) 12.5 mm (kg/m)
                50 x 30 2.31 2.82 3.30 4.20
                60 x 40 2.93 3.60 4.25 5.45 6.56
                80 x 40 3.56 4.39 5.19 6.71 8.13
                80 x 60 6.13 7.97 9.70
                100 x 40 6.13 7.97 9.70
                100 x 50 6.60 8.59 10.5 12.3
                100 x 60 7.07 9.22 11.3 13.2
                100 x 80 8.01 10.5 12.8 15.1
                120 x 60 8.01 10.5 12.8 15.1
                120 x 80 8.96 11.7 14.4 17.0 21.4 25.6
                140 x 80 13.0 16.0 18.9
                150 x 50 11.7 14.4 17.0
                150 x 100 14.9 18.3 21.7 27.7 33.4
                160 x 70 13.6 16.8 19.8 25.2
                160 x 80 14.3 17.6 20.8 26.4 31.8
                180 x 100 16.8 20.7 24.5 31.4 38.1
                200 x 100 18.0 22.3 26.4 34.0 41.3 48.7
                200 x 120 23.8 28.3 36.5 44.4 52.6
                250 x 100 26.18 31.11 40.23
                250 x 150 30.1 35.8 46.5 57.0 68.3
                260 x 180 39.6 51.5 63.2
                300 x 100 30.1 35.8 46.5 57.0 68.3
                300 x 150 40.5 52.8 64.8 78.1
                300 x 200 45.2 59.1 72.7 88.0
                400 x 200 54.7 71.6 88.4 108
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                  Mechanical Properties

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                    Thickness
                    (mmin)
                    Yield strength Rp0.2
                    (min MPa)
                    Tensile strength Rm
                    (MPa)
                    Elongation A5 1)
                    (min %)
                    Charpy-V -40°C 10x10 mm test specimen 2)
                    (J)
                    S355J2H 2 - 2.990.08 - 0.118 355 510 - 680 20 27
                    3 - 12.50.1 - 0.492 355 470 - 630 20 27
                    S420MH 2 - 12.50.08 - 0.492 420 500 - 660 19 40
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                      Mechanical properties meet or exceed the requirements of EN 10219.

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

                      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.

                      2) Impact testing according to EN ISO 148-1 is performed on thicknesses ≥ 6mm. 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 %)
                        S355J2H 0.16 1) 0.25 2) 1.60 0.020 1) 0.012 1)
                        S420MH 0.16 1) 0.25 2) 1.60 0.020 1) 0.012 1)
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                          Chemical composition meets or exceeds the requirements of EN 10219.

                          Chemical analyses enables welding in the corner area without restrictions (EN 1993-1-8).

                          The steel is aluminium-killed.

                          1) Value exceed the requirements of EN 10219.

                          2) Si content guaranteed at 0.15–0.25 %.

                          Carbon Equivalent

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                            Wall Thickness (mm) 2.0 - 12.50.079 - 0.492
                            CEV (max %) 0.39
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                              Wall Thickness (mm)
                              CEV (max %)
                              2.0 - 12.50.079 - 0.492
                              0.39

                              CEV value exceeds the requirements of EN 10219.

                              Tolerances

                              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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                                    Comparison

                                      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 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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                                        Comparison

                                          Characteristic
                                          Outside dimensions (B, H) 1)
                                          Rectangular 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)
                                          Rectangular 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
                                          Rectangular 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
                                          Rectangular hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          90° ±1°
                                          Characteristic
                                          Concavity/convexity
                                          Rectangular hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          0.8%, with a minimum of 0.5 mm
                                          Characteristic
                                          Twist
                                          Rectangular hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          2 mm + 0.5 mm/m
                                          Characteristic
                                          Straightness
                                          Rectangular 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
                                          Rectangular hollow sections
                                          Tolerances meet or exceed the requirements of EN 10219
                                          Individual tube: ±6%
                                          Characteristic
                                          Mill length
                                          Rectangular 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
                                          Rectangular 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.

                                          Other hollow section products

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                                          SSAB Domex® Tube 500MH

                                          SSAB Domex® Tube 550MH

                                          SSAB Weathering Tube 355WH

                                          SSAB Weathering Tube 500WH