COR-TEN® B Tube

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    General Product Description

    COR-TEN® B Tube is structural hollow section with anti-corrosive properties, which minimize the need for maintenance and corrosion-prevention treatment.

    It is available in circular, rectangular, square and special shapes. Customized shapes and other tailoring options are available upon request. It is typically used in advanced engineering and construction where corrosion resistance is important. It meets the standard requirements of EN 10025-5 and EN 10219 and is CE marked.

    COR-TEN® B Tube is manufactured by cold forming and high frequency welding from clean, high quality environmentally friendly steel by modern and efficient tube lines.

    Dimension Range

    COR-TEN® B Tube is available at circular, square and rectangular shapes.

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      Shapes Dimensions
      Circular (mm) 42.4 - 323.9
      Square (mm) 40x40 - 300x300
      Rectangular (mm) 50x30 - 400x200
      Wall thickness (mm) 2.0 - 12.5
      Mill length (mm) 6000/12 000 mm
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        Shapes
        Circular (mm)
        Dimensions
        42.4 - 323.9
        Shapes
        Square (mm)
        Dimensions
        40x40 - 300x300
        Shapes
        Rectangular (mm)
        Dimensions
        50x30 - 400x200
        Shapes
        Wall thickness (mm)
        Dimensions
        2.0 - 12.5
        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 (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)
          42.4 1.99 2.46 2.91 3.79
          48.3 2.28 2.82 3.35 4.37
          60.3 2.88 3.56 4.24 5.55 6.82
          76.1 3.65 4.54 5.41 7.11 8.77
          88.9 6.36 8.38 10.4 12.3
          101.6 7.29 9.63 11.9 14.2
          108.0 7.77 10.3 12.7 15.1
          114 8.23 10.9 13.5 16.0
          127.0 9.17 12.1 15.0 17.9
          139.7 13.4 16.6 19.8 26.0 32.0
          168.3 16.2 20.1 24.0 31.6 39.0
          219.1 21.2 26.4 31.5 41.7 51.6 63.7
          273.0 26.5 33.1 39.5 52.3 64.9 80.3
          323.9 39.3 47.0 62.3 77.4 96.0
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            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 5.17 6.13 7.97 9.70
              80 x 80 5.96 7.07 9.22 11.3 13.2
              90 x 90 6.74 8.01 10.5 12.8 15.1
              100 x 100 7.53 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 5.17 6.13 7.97 9.70
                  100 x 40 5.17 6.13 7.97 9.70
                  100 x 50 5.6 6.60 8.59 10.5 12.3
                  100 x 60 5.95 7.07 9.22 11.3 13.2
                  100 x 80 6.74 8.01 10.5 12.8 15.1
                  120 x 60 6.74 8.01 10.5 12.8 15.1
                  120 x 80 7.53 8.96 11.7 14.4 17.0 21.4 25.6
                  140 x 60 11.7 14.4 17.0
                  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 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 26.2 31.1 40.2 49.1
                  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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                      Yield strength Rp0.2
                      (min MPa)
                      Tensile strength Rm
                      (MPa)
                      Elongation A5
                      (min %)
                      Charpy-V -20°C 10x10 mm test specimen 1)
                      (J)
                      355 510 - 630 20 27
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                        Mechanical properties meet the requirements of S355J2W, EN 10025-5.

                        The mechanical properties for rectangular hollow sections are tested by SSAB on the longer side of the cross section according to EN 10219.

                        1) 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
                          (%)
                          Mn
                          (%)
                          P
                          (max %)
                          S
                          (max %)
                          Altot
                          (%)
                          Cr
                          (%)
                          Cu
                          (%)
                          0.16 0.30 - 0.50 0.80 - 1.25 0.030 0.030 0.020 - 0.10 0.40 - 0.65 0.25 - 0.40
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                            Chemical composition meets the requirements of S355J2W, EN 10025-5.

                            The steel is aluminium-killed.

                            Carbon Equivalent

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                              Wall Thickness (mm) 2.0 - 12.5
                              CEV (max %) 0.50
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                                Wall Thickness (mm)
                                CEV (max %)
                                2.0 - 12.5
                                0.50

                                CEV value meet the requirements of S355J2W, EN 10025-5.

                                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 ≤ 18000 mm (standard lengths 6000 & 12000 mm)
                                  Exact length Agreed at the time of enquiry and order
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                                  Comparison

                                    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 ≤ 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
                                      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
                                      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 ≤ 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
                                        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
                                        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 ≤ 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
                                          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
                                          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 ≤ 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
                                            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
                                            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 ≤ 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.

                                            Contact Information

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