SSAB Form Tube 220

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    General Product Description

    SSAB Form Tube 220 is formable precision tube. It has over 20% higher elongation values and very narrow tolerances compared to competing products. Available in circular, rectangular, square and special shapes, it comes with different coating and surface options including cold rolled, galvanized, galvannealed and galfan. Customized shapes and other tailoring options are available upon request. Typically uses include light engineering, where formability, uniform quality, different surface options and usability are important.

    Dimension Range

    SSAB Form Tube 220 is available in circular, square, rectangular, flat oval and oval (elliptic) shapes.

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      Shapes Dimensions
      Circular (mm) 16 - 88.9
      Square (mm) 19x19 - 70x70
      Rectangular (mm) 25x15 - 100x40
      Flat oval (mm) 25x15 - 78x38
      Oval, elliptic (mm) 22x16.5 - 31x17.5
      Wall thickness (mm) 0.9 - 3.0
      Mill length (mm) 6000
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      Comparison

        Shapes
        Circular (mm)
        Dimensions
        16 - 88.9
        Shapes
        Square (mm)
        Dimensions
        19x19 - 70x70
        Shapes
        Rectangular (mm)
        Dimensions
        25x15 - 100x40
        Shapes
        Flat oval (mm)
        Dimensions
        25x15 - 78x38
        Shapes
        Oval, elliptic (mm)
        Dimensions
        22x16.5 - 31x17.5
        Shapes
        Wall thickness (mm)
        Dimensions
        0.9 - 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) 0.9 mm (kg/m) 1.0 mm (kg/m) 1.25 mm (kg/m) 1.5 mm (kg/m) 2.0 mm (kg/m) 2.5 mm (kg/m) 3.0 mm (kg/m)
          16 0.335 0.370 0.455 0.536 0.691 1)
          18 0.380 0.419 0.516 0.610 0.789
          19 0.402 0.444 0.547 0.647 0.838
          20 0.424 0.469 0.578 0.684 0.888
          22 0.468 0.518 0.640 0.758 0.986 1.20 1.41 1)
          25 0.535 0.592 0.732 0.869 1.13 1.39 1.63 1)
          28 0.601 0.666 0.825 0.980 1.28 1.57 1.85
          30 0.646 0.715 0.886 1.05 1.38 1.70 2.00
          32 0.765 0.948 1.13 1.48 1.82 2.15
          35 0.838 1.04 1.24 1.63 2.00 2.37
          38 0.912 1.13 1.35 1.78 2.19 2.59
          40 0.962 1.20 1.42 1.87 2.31 2.74
          41 0.990 1.22 1.46 1.92 2.37 2.81
          41.5 0.999 1.24 1.48 1.95 2.40 2.85
          44.5 1.07 1.33 1.59 2.10 2.59 3.07
          48 1.44 1.72 2.27 2.81 3.33
          50 1.50 1.79 2.37 2.93 3.48
          50.8 1.53 1.82 2.41 2.98 3.54
          55 1.66 1.98 2.61 3.24 3.85
          57 1.72 2.05 2.71 3.36 4.00
          60 1.81 2.16 2.86 3.55 4.22
          70 2.53 3.35 4.16 4.96
          76.1 2.76 3.65 4.54 5.41
          88.9 4.29 5.33 6.36
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          Comparison

            1) Elongation A-value according to +CR2, 23%.

            Square Dimensions

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              Height x Width (mm) 1.0 mm (kg/m) 1.25 mm (kg/m) 1.5 mm (kg/m) 2.0 mm (kg/m) 2.5 mm (kg/m) 3.0 mm (kg/m)
              19 x 19 0.564 0.694 0.820 1.06 1)
              20 x 20 0.595 0.733 0.868 1.12 1)
              25 x 25 0.752 0.930 1.10 1.44 1.76
              30 x 30 0.909 1.13 1.34 1.75 2.15 2.39
              32 x 32 0.972 1.20 1.43 1.88 2.31 2.58
              35 x 35 1.07 1.32 1.57 2.07 2.54 2.86
              40 x 40 1.52 1.81 2.38 2.93 3.33
              50 x 50 1.91 2.28 3.01 3.72 4.28
              60 x 60 2.75 3.64 4.50 5.22
              70 x 70 4.26 5.29 6.16
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              Comparison

                1) Elongation A-value according to +CR2, 23%.

                Rectangular Dimensions

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                  Height x Width (mm) 1.0 mm (kg/m) 1.25 mm (kg/m) 1.5 mm (kg/m) 2.0 mm (kg/m) 2.5 mm (kg/m) 3.0 mm (kg/m)
                  25 x 15 0.595 0.733 0.868 1.12 1)
                  30 x 10 0.595 0.733 0.868 1.12
                  30 x 15 0.673 0.831 0.985 1.28
                  30 x 20 0.752 0.930 1.10 1.44 1.76
                  30 x 25 0.830 1.03 1.22 1.59 1.95
                  35 x 15 0.752 0.930 1.10 1.44 1.76
                  35 x 20 0.830 1.03 1.22 1.59 1.95 2.16
                  40 x 20 0.909 1.13 1.34 1.75 2.15 2.39
                  40 x 25 0.987 1.22 1.46 1.91 2.34 2.63
                  40 x 30 1.07 1.32 1.57 2.07 2.54 2.86
                  50 x 20 1.07 1.32 1.57 2.07 2.54 2.86
                  50 x 25 1.42 1.69 2.22 2.74 3.10
                  50 x 30 1.52 1.81 2.38 2.93 3.33
                  50 x 40 1.71 2.05 2.69 3.33 3.80
                  60 x 20 1.52 1.81 2.38 2.93 3.33
                  60 x 30 1.71 2.05 2.69 3.33 3.80
                  60 x 40 1.91 2.28 3.01 3.72 4.28
                  70 x 25 2.16 2.85 3.52 4.04
                  70 x 30 2.28 3.01 3.72 4.28
                  70 x 50 2.75 3.64 4.50 5.22
                  80 x 20 2.28 3.01 3.72 4.28
                  80 x 30 2.52 3.32 4.11 4.74
                  80 x 40 2.75 3.64 4.50 5.22
                  80 x 60 4.26 5.29 6.16
                  100 x 40 4.26 5.29 6.16
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                  Comparison

                    1) Elongation A-value according to +CR2, 23%.

                    Flat Oval Dimensions

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                      Height x Width (mm) 0.9 mm (kg/m) 1.0 mm (kg/m) 1.25 mm (kg/m) 1.5 mm (kg/m) 2.0 mm (kg/m) 2.5 mm (kg/m) 3.0 mm (kg/m)
                      25 x 15 0.454 0.502 0.620 0.735 0.955 1)
                      30 x 15 0.525 0.581 0.718 0.853 1.11
                      35 x 15 0.596 0.659 0.816 0.970 1.269
                      38 x 20 0.678 0.751 0.931 1.11 1.45
                      40 x 20 0.783 0.971 1.155 1.516
                      40 x 25 0.827 1.03 1.22 1.61
                      45 x 25 0.906 1.125 1.340 1.762 2.172 2.570
                      50 x 20 0.940 1.167 1.391 1.830 2.256 2.671
                      60 x 15 1.052 1.307 1.559 2.054 2.537 3.007
                      70 x 9 1.155 1.436 1.714 2.261
                      78 x 38 1.918 2.292 3.032 3.759 4.473
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                      Comparison

                        1) Elongation A-value according to +CR2, 23%.

                        Oval Dimensions

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                          Height x Width (mm) 0.9 mm (kg/m) 1.0 mm (kg/m) 1.25 mm (kg/m) 1.5 mm (kg/m) 2.0 mm (kg/m)
                          22 x 16.5 0.407 0.450 0.555 0.657 0.851 1)
                          31 x 17.5 0.573 0.709 0.842 1.097
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                          Comparison

                            1) Elongation A-value according to +CR2, 23%.

                            Mechanical Properties

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                              Yield strength Rp0.2
                              (min MPa)
                              Tensile strength Rm
                              (min MPa)
                              Elongation A
                              (min %)
                              220 310 28 1)
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                              Comparison

                                Mechanical properties meet or exceed the requirements of EN 10305 (+CR2).

                                1) Value exceed the requirements of EN 10305.

                                Chemical Composition (ladle analysis)

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                                  C
                                  (max %)
                                  Si 1)
                                  (max %)
                                  Mn
                                  (max %)
                                  P 1)
                                  (max %)
                                  S 2)
                                  (max %)
                                  Altot 3)
                                  (min %)
                                  0.10 0.05 0.70 0.020 2) 0.020 0.015
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                                  Comparison

                                    Chemical composition meets or exceeds 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) SSAB Form Tube C grade is suitable for high quality hot-dip galvanizing (Si < 0.03%, Si+2.5P < 0.06%). SSAB Form Tube H grade is suitable for high quality hot-dip galvanizing (Si < 0.03%, Si +2.5 P < 0.06%)

                                    2) Low level of impurities ensure excellent formability and weldability

                                    3) 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 meet or exceed 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 < 0.6 mm, when T ≤ 1.5 mm
                                      g < 0.4 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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                                      Comparison

                                        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 meet or exceed 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 meet or exceed the requirements of EN 10305-3
                                        The diameter tolerances include the out-of-roundness
                                        Characteristic
                                        Thickness (T)
                                        Circular precision tubes
                                        Tolerances meet or exceed 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 meet or exceed 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 meet or exceed the requirements of EN 10305-3

                                        g ≤ 0.3 mm
                                        g < 0.6 mm, when T ≤ 1.5 mm
                                        g < 0.4 x T, when 1.5 mm < T ≤ 3.0 mm
                                        Characteristic
                                        Mill length
                                        Circular precision tubes
                                        Tolerances meet or exceed the requirements of EN 10305-3
                                        0/+50 mm, standard length 6000 mm
                                        Characteristic
                                        Exact length, single cutting
                                        Circular precision tubes
                                        Tolerances meet or exceed the requirements of EN 10305-3
                                        Agreed at the time of enquiry and order
                                        Characteristic
                                        Exact length, bundle cutting
                                        Circular precision tubes
                                        Tolerances meet or exceed 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.

                                        Tolerance Square

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                                          Characteristic Square precision tubes
                                          Tolerances meet or exceed the requirements of EN 10305-5
                                          Outside dimensions (H) and (B), longer side1)
                                          H < 25 mm
                                          25 ≤ H < 40 mm
                                          40 ≤ H < 60 mm
                                          60≤ H < 70 mm
                                          70 ≤ H < 80 mm

                                          ±0.20 mm
                                          ±0.25 mm
                                          ±0.30 mm
                                          ±0.35 mm
                                          ±0.40 mm
                                          Side concavity and convexity Included in outside dimension tolerance
                                          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 tube length when shorter side length > 30 mm
                                          Maximum 0.25% of measured tube length when the shorter side length ≤ 30 mm
                                          Location of weld seam from the centre line On narrow side for square and rectangular, optionally on wide side. On wide side for flat oval and ellipse. ± 10% of side length or ± 3 mm, whichever is greater.
                                          Height of internal weld bead, g;
                                          Bead removed
                                          Bead not removed

                                          g ≤ 0.3 mm
                                          g < 0.6 mm, when T ≤ 1.5 mm
                                          g < 0.4 x T, when 1.5 mm < T ≤ 3.0 mm
                                          Squareness of side 90° ±1°
                                          Corner profile R < 1.5 x T, when T ≤ 2.5 mm
                                          R < 2.2 x T, when T > 2.5 mm
                                          Twist (V) V ≤ 3 mm for B and H ≤ 30 mm
                                          V ≤ B/10 or ≤ H/10 for B or H > 30 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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                                          Comparison

                                            Characteristic
                                            Outside dimensions (H) and (B), longer side1)
                                            H < 25 mm
                                            25 ≤ H < 40 mm
                                            40 ≤ H < 60 mm
                                            60≤ H < 70 mm
                                            70 ≤ H < 80 mm
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5

                                            ±0.20 mm
                                            ±0.25 mm
                                            ±0.30 mm
                                            ±0.35 mm
                                            ±0.40 mm
                                            Characteristic
                                            Side concavity and convexity
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5
                                            Included in outside dimension tolerance
                                            Characteristic
                                            Thickness (T)
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5
                                            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
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5
                                            Maximum 0.15% of measured tube length when shorter side length > 30 mm
                                            Maximum 0.25% of measured tube length when the shorter side length ≤ 30 mm
                                            Characteristic
                                            Location of weld seam from the centre line
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5
                                            On narrow side for square and rectangular, optionally on wide side. On wide side for flat oval and ellipse. ± 10% of side length or ± 3 mm, whichever is greater.
                                            Characteristic
                                            Height of internal weld bead, g;
                                            Bead removed
                                            Bead not removed
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5

                                            g ≤ 0.3 mm
                                            g < 0.6 mm, when T ≤ 1.5 mm
                                            g < 0.4 x T, when 1.5 mm < T ≤ 3.0 mm
                                            Characteristic
                                            Squareness of side
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5
                                            90° ±1°
                                            Characteristic
                                            Corner profile
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5
                                            R < 1.5 x T, when T ≤ 2.5 mm
                                            R < 2.2 x T, when T > 2.5 mm
                                            Characteristic
                                            Twist (V)
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5
                                            V ≤ 3 mm for B and H ≤ 30 mm
                                            V ≤ B/10 or ≤ H/10 for B or H > 30 mm
                                            Characteristic
                                            Mill length
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5
                                            0/+50 mm, standard length 6000 mm
                                            Characteristic
                                            Exact length, single cutting
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5
                                            Agreed at the time of enquiry and order
                                            Characteristic
                                            Exact length, bundle cutting
                                            Square precision tubes
                                            Tolerances meet or exceed the requirements of EN 10305-5
                                            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.

                                            Tolerance Rectangular

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                                              Characteristic Rectangular precision tubes
                                              Tolerances meet or exceed the requirements of EN 10305-5
                                              Outside dimensions (H) and (B), longer side1)
                                              H < 25 mm
                                              25 ≤ H < 40 mm
                                              40 ≤ H < 60 mm
                                              60≤ H < 70 mm
                                              70 ≤ H < 80 mm
                                              80 ≤ H < 90 mm
                                              90 ≤ H < 100 mm
                                              100 ≤ H < 120 mm

                                              ±0.20 mm
                                              ±0.25 mm
                                              ±0.30 mm
                                              ±0.35 mm
                                              ±0.40 mm
                                              ±0.50 mm
                                              ±0.60 mm
                                              ±0.65 mm
                                              Side concavity and convexity Included in outside dimension tolerance
                                              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 tube length when shorter side length > 30 mm
                                              Maximum 0.25% of measured tube length when the shorter side length ≤ 30 mm
                                              Location of weld seam from the centre line On narrow side for square and rectangular, optionally on wide side. On wide side for flat oval and ellipse. ± 10% of side length or ± 3 mm, whichever is greater.
                                              Height of internal weld bead, g;
                                              Bead removed
                                              Bead not removed

                                              g ≤ 0.3 mm
                                              g < 0.6 mm, when T ≤ 1.5 mm
                                              g < 0.4 x T, when 1.5 mm < T ≤ 3.0 mm
                                              Squareness of side 90° ±1°
                                              Corner profile R < 1.5 x T, when T ≤ 2.5 mm
                                              R < 2.2 x T, when T > 2.5 mm
                                              Twist (V) V ≤ 3 mm for B and H ≤ 30 mm
                                              V ≤ B/10 or ≤ H/10 for B or H > 30 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
                                              Compare parameters

                                              Select one parameter to compare

                                              Comparison

                                                Characteristic
                                                Outside dimensions (H) and (B), longer side1)
                                                H < 25 mm
                                                25 ≤ H < 40 mm
                                                40 ≤ H < 60 mm
                                                60≤ H < 70 mm
                                                70 ≤ H < 80 mm
                                                80 ≤ H < 90 mm
                                                90 ≤ H < 100 mm
                                                100 ≤ H < 120 mm
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5

                                                ±0.20 mm
                                                ±0.25 mm
                                                ±0.30 mm
                                                ±0.35 mm
                                                ±0.40 mm
                                                ±0.50 mm
                                                ±0.60 mm
                                                ±0.65 mm
                                                Characteristic
                                                Side concavity and convexity
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5
                                                Included in outside dimension tolerance
                                                Characteristic
                                                Thickness (T)
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5
                                                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
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5
                                                Maximum 0.15% of measured tube length when shorter side length > 30 mm
                                                Maximum 0.25% of measured tube length when the shorter side length ≤ 30 mm
                                                Characteristic
                                                Location of weld seam from the centre line
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5
                                                On narrow side for square and rectangular, optionally on wide side. On wide side for flat oval and ellipse. ± 10% of side length or ± 3 mm, whichever is greater.
                                                Characteristic
                                                Height of internal weld bead, g;
                                                Bead removed
                                                Bead not removed
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5

                                                g ≤ 0.3 mm
                                                g < 0.6 mm, when T ≤ 1.5 mm
                                                g < 0.4 x T, when 1.5 mm < T ≤ 3.0 mm
                                                Characteristic
                                                Squareness of side
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5
                                                90° ±1°
                                                Characteristic
                                                Corner profile
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5
                                                R < 1.5 x T, when T ≤ 2.5 mm
                                                R < 2.2 x T, when T > 2.5 mm
                                                Characteristic
                                                Twist (V)
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5
                                                V ≤ 3 mm for B and H ≤ 30 mm
                                                V ≤ B/10 or ≤ H/10 for B or H > 30 mm
                                                Characteristic
                                                Mill length
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5
                                                0/+50 mm, standard length 6000 mm
                                                Characteristic
                                                Exact length, single cutting
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5
                                                Agreed at the time of enquiry and order
                                                Characteristic
                                                Exact length, bundle cutting
                                                Rectangular precision tubes
                                                Tolerances meet or exceed the requirements of EN 10305-5
                                                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.

                                                Tolerance Flat Oval

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                                                  Characteristic Flat oval precision tubes
                                                  Tolerances meet or exceed the requirements of EN 10305-5
                                                  Outside dimensions (H) and (B), longer side1)
                                                  H < 25 mm
                                                  25 ≤ H < 40 mm
                                                  40 ≤ H < 60 mm
                                                  60≤ H < 70 mm
                                                  70 ≤ H < 80 mm
                                                  80 ≤ H < 90 mm
                                                  90 ≤ H < 100 mm
                                                  100 ≤ H < 120 mm

                                                  ±0.20 mm
                                                  ±0.25 mm
                                                  ±0.30 mm
                                                  ±0.35 mm
                                                  ±0.40 mm
                                                  Concavity/convexity Included in outside dimension tolerance
                                                  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 tube length when shorter side length > 30 mm
                                                  Maximum 0.25% of measured tube length when the shorter side length ≤ 30 mm
                                                  Location of weld seam from the centre line On wide side for flat oval and ellipse. ± 10% of side length or ± 3 mm, whichever is greater.
                                                  Height of internal weld bead, g;
                                                  Bead removed
                                                  Bead not removed

                                                  g ≤ 0.3 mm
                                                  g < 0.6 mm, when T ≤ 1.5 mm
                                                  g < 0.4 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
                                                  Compare parameters

                                                  Select one parameter to compare

                                                  Comparison

                                                    Characteristic
                                                    Outside dimensions (H) and (B), longer side1)
                                                    H < 25 mm
                                                    25 ≤ H < 40 mm
                                                    40 ≤ H < 60 mm
                                                    60≤ H < 70 mm
                                                    70 ≤ H < 80 mm
                                                    80 ≤ H < 90 mm
                                                    90 ≤ H < 100 mm
                                                    100 ≤ H < 120 mm
                                                    Flat oval precision tubes
                                                    Tolerances meet or exceed the requirements of EN 10305-5

                                                    ±0.20 mm
                                                    ±0.25 mm
                                                    ±0.30 mm
                                                    ±0.35 mm
                                                    ±0.40 mm
                                                    Characteristic
                                                    Concavity/convexity
                                                    Flat oval precision tubes
                                                    Tolerances meet or exceed the requirements of EN 10305-5
                                                    Included in outside dimension tolerance
                                                    Characteristic
                                                    Thickness (T)
                                                    Flat oval precision tubes
                                                    Tolerances meet or exceed the requirements of EN 10305-5
                                                    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
                                                    Flat oval precision tubes
                                                    Tolerances meet or exceed the requirements of EN 10305-5
                                                    Maximum 0.15% of measured tube length when shorter side length > 30 mm
                                                    Maximum 0.25% of measured tube length when the shorter side length ≤ 30 mm
                                                    Characteristic
                                                    Location of weld seam from the centre line
                                                    Flat oval precision tubes
                                                    Tolerances meet or exceed the requirements of EN 10305-5
                                                    On wide side for flat oval and ellipse. ± 10% of side length or ± 3 mm, whichever is greater.
                                                    Characteristic
                                                    Height of internal weld bead, g;
                                                    Bead removed
                                                    Bead not removed
                                                    Flat oval precision tubes
                                                    Tolerances meet or exceed the requirements of EN 10305-5

                                                    g ≤ 0.3 mm
                                                    g < 0.6 mm, when T ≤ 1.5 mm
                                                    g < 0.4 x T, when 1.5 mm < T ≤ 3.0 mm
                                                    Characteristic
                                                    Mill length
                                                    Flat oval precision tubes
                                                    Tolerances meet or exceed the requirements of EN 10305-5
                                                    0/+50 mm, standard length 6000 mm
                                                    Characteristic
                                                    Exact length, single cutting
                                                    Flat oval precision tubes
                                                    Tolerances meet or exceed the requirements of EN 10305-5
                                                    Agreed at the time of enquiry and order
                                                    Characteristic
                                                    Exact length, bundle cutting
                                                    Flat oval precision tubes
                                                    Tolerances meet or exceed the requirements of EN 10305-5
                                                    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.

                                                    Tolerance Oval

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                                                      Characteristic Oval (elliptic) precision tubes
                                                      Tolerances meet or exceed the requirements of EN 10305-5
                                                      Outside dimensions (H) and (B), longer side1)
                                                      H < 25 mm
                                                      25 ≤ H < 40 mm
                                                      40 ≤ H < 60 mm
                                                      60≤ H < 70 mm
                                                      70 ≤ H < 80 mm
                                                      80 ≤ H < 90 mm
                                                      90 ≤ H < 100 mm
                                                      100 ≤ H < 120 mm

                                                      ±0.20 mm
                                                      ±0.25 mm
                                                      Concavity/convexity Included in outside dimension tolerance
                                                      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 tube length when shorter side length > 30 mm
                                                      Maximum 0.25% of measured tube length when the shorter side length ≤ 30 mm
                                                      Location of weld seam from the centre line On wide side for flat oval and ellipse. ± 10% of side length or ± 3 mm, whichever is greater.
                                                      Height of internal weld bead, g;
                                                      Bead removed
                                                      Bead not removed

                                                      g ≤ 0.3 mm
                                                      g < 0.6 mm, when T ≤ 1.5 mm
                                                      g < 0.4 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 dimensions (H) and (B), longer side1)
                                                        H < 25 mm
                                                        25 ≤ H < 40 mm
                                                        40 ≤ H < 60 mm
                                                        60≤ H < 70 mm
                                                        70 ≤ H < 80 mm
                                                        80 ≤ H < 90 mm
                                                        90 ≤ H < 100 mm
                                                        100 ≤ H < 120 mm
                                                        Oval (elliptic) precision tubes
                                                        Tolerances meet or exceed the requirements of EN 10305-5

                                                        ±0.20 mm
                                                        ±0.25 mm
                                                        Characteristic
                                                        Concavity/convexity
                                                        Oval (elliptic) precision tubes
                                                        Tolerances meet or exceed the requirements of EN 10305-5
                                                        Included in outside dimension tolerance
                                                        Characteristic
                                                        Thickness (T)
                                                        Oval (elliptic) precision tubes
                                                        Tolerances meet or exceed the requirements of EN 10305-5
                                                        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
                                                        Oval (elliptic) precision tubes
                                                        Tolerances meet or exceed the requirements of EN 10305-5
                                                        Maximum 0.15% of measured tube length when shorter side length > 30 mm
                                                        Maximum 0.25% of measured tube length when the shorter side length ≤ 30 mm
                                                        Characteristic
                                                        Location of weld seam from the centre line
                                                        Oval (elliptic) precision tubes
                                                        Tolerances meet or exceed the requirements of EN 10305-5
                                                        On wide side for flat oval and ellipse. ± 10% of side length or ± 3 mm, whichever is greater.
                                                        Characteristic
                                                        Height of internal weld bead, g;
                                                        Bead removed
                                                        Bead not removed
                                                        Oval (elliptic) precision tubes
                                                        Tolerances meet or exceed the requirements of EN 10305-5

                                                        g ≤ 0.3 mm
                                                        g < 0.6 mm, when T ≤ 1.5 mm
                                                        g < 0.4 x T, when 1.5 mm < T ≤ 3.0 mm
                                                        Characteristic
                                                        Mill length
                                                        Oval (elliptic) precision tubes
                                                        Tolerances meet or exceed the requirements of EN 10305-5
                                                        0/+50 mm, standard length 6000 mm
                                                        Characteristic
                                                        Exact length, single cutting
                                                        Oval (elliptic) precision tubes
                                                        Tolerances meet or exceed the requirements of EN 10305-5
                                                        Agreed at the time of enquiry and order
                                                        Characteristic
                                                        Exact length, bundle cutting
                                                        Oval (elliptic) precision tubes
                                                        Tolerances meet or exceed the requirements of EN 10305-5
                                                        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.

                                                        Surface designation and general usability

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                                                          Designation Definition Usability
                                                          C Cold rolled Suitable for painting and chromium plating
                                                          H Hot rolled and pickled Suitable for painting and hot-dip galvanizing
                                                          Z Zinc coated (zinc 99%) Suitable when corrosion resistance is required
                                                          ZA Galfan coated (zinc 95%-aluminium 5%) Suitable when corrosion resistance and demanding forming are required
                                                          ZF Galvannealed coated (zinc 90%-iron 10%) Suitable when corrosion resistance and paintability are required
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                                                            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
                                                              C < 0.6 µm
                                                              H < 2.0 µm
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                                                                Designation
                                                                C
                                                                Ra value
                                                                < 0.6 µm
                                                                Designation
                                                                H
                                                                Ra value
                                                                < 2.0 µm

                                                                Different metal coatings and minimum coating mass

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                                                                  Coating thickness 1)(µm) Zinc (Z) 2) (g/m2) Galfan (ZA) 2) (g/m2) Galvannealed (ZF) 2) (g/m2)
                                                                  7 Z100 ZF100
                                                                  8 ZF120
                                                                  10 Z140 ZA130 ZF140
                                                                  20 Z275 ZA255
                                                                  25 Z350 ZA300
                                                                  32 Z450
                                                                  42 Z600
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