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SSAB Laser® 355ML Plus

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    General Product Description

    SSAB Laser® 355ML Plus is an advanced thermomechanically rolled weldable fine grain steel for laser cutting and cold forming. The SSAB guarantee for flatness, both before and after laser cutting, is ≤ 3 mm/m deviation.

    SSAB Laser® 355ML Plus meets and exceeds the requirements of S355ML in EN 10025-4. Dual certification and CE marking are available upon request.

    Dimension Range

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      Delivery form Thickness
      (mmin)      		 Width
      (mmin)      		 Length
      (mmin)
      SSAB Laser® 355ML Plus Hot rolled plate 8.0 - 30.00.31 - 1.18 1000 - 330039.37 - 129.9 2000 - 1500078.74 - 590.55
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        Mechanical Properties

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          Yield strength ReH
          (min MPa)          		 Tensile strength Rm
          (MPa)          		 Elongation A5
          (min %)          		 Min. inner bending radius for a 90° bend 1)
          (x t)
          355 470 - 630 22 1.0
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            The mechanical properties are tested transverse to the direction of rolling.

            1) The bending guarantee is valid for both longitudinal and transverse direction.

            Impact Properties

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              Min. impact energy for longitudinal testing,
              Charpy V 10x10 mm test specimens
              40 J / -50 °C
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                Min. impact energy for longitudinal testing,
                Charpy V 10x10 mm test specimens
                40 J / -50 °C
                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 (heat analysis)

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                  C
                  (max %)                  		 Si
                  (max %)                  		 Mn
                  (max %)                  		 P
                  (max %)                  		 S
                  (max %)                  		 CEV
                  (max )
                  0.12 0.03 1.60 0.020 0.015 0.38
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                    All SSAB Laser® steels are aluminum-killed (Al ≥ 0.015%) and grain-refined. Additionally, niobium (Nb), vanadium (V), titanium (Ti) and/or boron (B) may be used as single alloying element or in any combination.

                    Tolerances

                    All SSAB Laser® products are delivered with SSAB Laser® tolerances, which means increased guarantees compared to corresponding EN standards. Detailed information is available on ssab.com.

                    Thickness

                    SSAB Laser® tolerances correspond to ¾ of EN 10029 as default.

                    Width

                    -0/+4-10mm depending on the thickness.

                    Length

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                      Nominal length
                      (mm)                      		 Tolerance
                      (mm)
                      2000 ˂ l ≤ 10000 - 0 / + 15
                      10000 ˂ l ≤ 15000 - 0 / + 20
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                        Nominal length
                        (mm)
                        2000 ˂ l ≤ 10000
                        Tolerance
                        (mm)
                        - 0 / + 15
                        Nominal length
                        (mm)
                        10000 ˂ l ≤ 15000
                        Tolerance
                        (mm)
                        - 0 / + 20

                        Flatness

                        ≤ 3 mm/m flatness deviation for both delivery condition and laser cut parts.

                        Surface Properties

                        According to EN 10163-2 Class A, Subclass 3.

                        Delivery Conditions

                        Thermomechanically rolled.

                        Surface and edge condition

                        Hot rolled plate: as rolled surface condition and cut edges as default.

                        Fabrication and Other Recommendations

                        All SSAB Laser® products have been optimized for laser cutting, cold forming and welding.

                        SSAB Laser® ML Plus products are thermomechanically rolled weldable fine grain steels for laser cutting and cold forming. It is not suited for heat treatments at temperatures above 580°C, since the material then may lose its guaranteed properties.

                        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.

                        Contact Information

                        www.ssab.com/contact