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 (mmin) 48.3 - 323.91.90 - 12.75
    Square (mmin) 40x40 - 300x300
    Rectangular (mmin) 50x30 - 400x200
    Wall thickness (mmin) 2.0 - 12.50.079 - 0.492
    Mill length (mm) 6000/12 000
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      Shapes
      Circular (mmin)
      Dimensions
      48.3 - 323.91.90 - 12.75
      Shapes
      Square (mmin)
      Dimensions
      40x40 - 300x300
      Shapes
      Rectangular (mmin)
      Dimensions
      50x30 - 400x200
      Shapes
      Wall thickness (mmin)
      Dimensions
      2.0 - 12.50.079 - 0.492
      Shapes
      Mill length (mm)
      Dimensions
      6000/12 000

      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)
        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
        88.93.50 6.36 8.38 10.4 12.3
        101.64.000 7.29 9.63 11.9 14.2
        108.04.252 7.77 10.3 12.7 15.1
        1144.49 8.23 10.9 13.5 16.0
        127.05.000 9.17 12.1 15.0 17.9
        139.75.500 13.4 16.6 19.8 26.0 32.0
        168.36.626 16.2 20.1 24.0 31.6 39.0
        219.18.626 21.2 26.4 31.5 41.7 51.6 63.7
        273.010.75 26.5 33.1 39.5 52.3 64.9 80.3
        323.912.75 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 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 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 - 12.50.079 - 0.492
                            CEV (max %) 0.50
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                              Wall Thickness (mm)
                              CEV (max %)
                              2.0 - 12.50.079 - 0.492
                              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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