Docol® Tube 700LA

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    General Product Description

    Docol® Tube 700LA is high-strength formable precision tube with pickled hot rolled surface condition. Available in circular shapes. Rectangular, square and customized shapes and other tailoring options are available upon request. Typical uses include automotive and engineering, where durability, formability, lightness and energy absorption are important.

    Dimension Range

    Docol Tube 700LA is available in circular shapes.

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      Shapes Dimensions
      Circular (mm) 32 - 88.9
      Wall thickness (mm) 2.0 - 3.0
      Mill length (mm) 6000
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        Shapes
        Circular (mm)
        Dimensions
        32 - 88.9
        Shapes
        Wall thickness (mm)
        Dimensions
        2.0 - 3.0
        Shapes
        Mill length (mm)
        Dimensions
        6000

        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)
          32 1.48
          35 1.63 2.00
          38 1.78 2.19 2.59
          41 1.92 2.37 2.81
          44.5 2.10 2.59 3.07
          48 2.27 2.81 3.33
          50 2.37 2.93 3.48
          55 2.61 3.24
          57 2.71 3.36
          60 2.86 3.55
          76.1 3.65
          88.9 4.29
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            Mechanical Properties

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              Yield strength Rp0.2
              (min MPa)
              Tensile strength Rm
              (min MPa)
              Elongation A
              (min %)
              HR700LA 700 740 5
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                Mechanical properties meet the requirements of EN 10305 (+CR2).

                Chemical Composition (ladle analysis)

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                  C
                  (max %)
                  Si
                  (max %)
                  Mn
                  (max %)
                  P
                  (max %)
                  S
                  (max %)
                  Altot 1)
                  (min %)
                  HR700LA 0.16 0.60 2.10 0.025 0.025 0.020
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                    Chemical composition meets the requirements of EN 10305.

                    If other chemical elements such as Ti, Nb or V are used, the content of these elements are reported in the inspection document.

                    1) This requirement is not applicable provided the steel contains a sufficient amount of other nitrogen binding elements, such as Ti, Nb or V.

                    Tolerances

                    Tolerance Circular

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                      Characteristic Circular precision tubes
                      Tolerances based on the requirements of EN 10305-3
                      Outside diameter (D) (1
                      D < 20 mm
                      20 ≤ D < 32 mm
                      32 ≤ D < 44 mm
                      44 ≤ D < 55 mm
                      55 ≤ D < 70 mm
                      70 ≤ D < 80 mm
                      80 ≤ D < 100 mm

                      ±0.12 mm
                      ±0.15 mm
                      ±0.20 mm
                      ±0.25 mm
                      ±0.30 mm
                      ±0.35 mm
                      ±0.40 mm
                      Out-of-roundness The diameter tolerances include the out-of-roundness
                      Thickness (T) T ≤ 1.5 mm: ±0.15 mm
                      T>1.5 mm: ±10% of nominal thickness or ±0.35 mm whichever is the smaller
                      Straightness Maximum 0.15% of measured length
                      Height of internal weld bead, g;
                      Bead removed
                      Bead not removed

                      g ≤ 0.3 mm
                      g < 0.8 mm, when T ≤ 1.5 mm
                      g < 0.6 x T, when 1.5 mm < T ≤ 3.0 mm
                      Mill length 0/+50 mm, standard length 6000 mm
                      Exact length, single cutting Agreed at the time of enquiry and order
                      Exact length, bundle cutting Agreed at the time of enquiry and order
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                        Characteristic
                        Outside diameter (D) (1
                        D < 20 mm
                        20 ≤ D < 32 mm
                        32 ≤ D < 44 mm
                        44 ≤ D < 55 mm
                        55 ≤ D < 70 mm
                        70 ≤ D < 80 mm
                        80 ≤ D < 100 mm
                        Circular precision tubes
                        Tolerances based on the requirements of EN 10305-3

                        ±0.12 mm
                        ±0.15 mm
                        ±0.20 mm
                        ±0.25 mm
                        ±0.30 mm
                        ±0.35 mm
                        ±0.40 mm
                        Characteristic
                        Out-of-roundness
                        Circular precision tubes
                        Tolerances based on the requirements of EN 10305-3
                        The diameter tolerances include the out-of-roundness
                        Characteristic
                        Thickness (T)
                        Circular precision tubes
                        Tolerances based on the requirements of EN 10305-3
                        T ≤ 1.5 mm: ±0.15 mm
                        T>1.5 mm: ±10% of nominal thickness or ±0.35 mm whichever is the smaller
                        Characteristic
                        Straightness
                        Circular precision tubes
                        Tolerances based on the requirements of EN 10305-3
                        Maximum 0.15% of measured length
                        Characteristic
                        Height of internal weld bead, g;
                        Bead removed
                        Bead not removed
                        Circular precision tubes
                        Tolerances based on the requirements of EN 10305-3

                        g ≤ 0.3 mm
                        g < 0.8 mm, when T ≤ 1.5 mm
                        g < 0.6 x T, when 1.5 mm < T ≤ 3.0 mm
                        Characteristic
                        Mill length
                        Circular precision tubes
                        Tolerances based on the requirements of EN 10305-3
                        0/+50 mm, standard length 6000 mm
                        Characteristic
                        Exact length, single cutting
                        Circular precision tubes
                        Tolerances based on the requirements of EN 10305-3
                        Agreed at the time of enquiry and order
                        Characteristic
                        Exact length, bundle cutting
                        Circular precision tubes
                        Tolerances based on the requirements of EN 10305-3
                        Agreed at the time of enquiry and order

                        1)For a maximum distance of 100 mm, the ends may, due to the cutting method, have diameters outside the tolerances.

                        Coating and Surfaces

                        Surface designation and general usability

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                          Designation Definition
                          UC Uncoated (hot rolled and pickled, HR, S2)
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                            Designation
                            UC
                            Definition
                            Uncoated (hot rolled and pickled, HR, S2)

                            Surface is slightly oiled to protect it from corrosion during transportation and short-term storage. By request, tubes can be delivered dry, however in that case SSAB will not be responsible for any possible rust.

                            Surface roughness, Ra

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                              Designation Ra value
                              UC, HR

                              < 2.0 µm

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                                Designation
                                UC, HR
                                Ra value

                                < 2.0 µm

                                Delivery Conditions

                                The tubes are not intended to undergo any heat treatment after welding and sizing as that may alter the mechanical properties of the material.

                                The tubes are oiled with anti-corrosive oil.

                                Fabrication and Other Recommendations

                                For information concerning fabrication, see SSAB´s brochures on www.ssab.com or consult Tech Support.

                                Appropriate health and safety precautions must be taken when bending, welding, cutting, grinding or otherwise working on the products.

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