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                            Open sections

                            COLD-FORMED OPEN SECTIONS

                            Impressive weight & cost savings

                            Open Sections

                            SSAB′s comprehensive range of cold-formed open steel sections includes extremely varied possibilities for both steel grades (up to S900) and shapes. A steel and shape exactly matching the application provides significant weight and cost savings. Each unit of weight saved will offer direct benefits in transportation and in the lighter weight of structures. Our cold-formed open sections are made according to EN 10162.


                            Open sections
                            Strenx sections

                            Strenx Sections

                            Strenx is one of the most advanced high-strength, high-performance steels in the world. Cold-formed open section helps you get the most out of its? strength. Strenx sections are available with steel grades S650, S700 and S900.

                            Typical applications for Strenx sections include demanding load-bearing structures, for example in the lifting, handling and transportation sectors.

                            Strenx sections feature good weldability, including corner region, and are suitable for thermal cutting and can be sawed and machined with regular tools.

                            Tailored Sections

                            In addition to standard section shapes, we can also deliver sections tailored to your specific needs using the most suitable materials for the application. Tailoring section properties to your needs can give your end product a significant competitive edge and boost your production efficiency.

                            The choice of steel section shapes is endless. We can produce thousands of different shapes, delivered laser cut, sand blasted, painted, hot-dip galvanized or zinc coated. Material is available up to 12.5 mm thickness in lengths varying from 0.4 m to 21 m.



                            Tailored sections
                            Standard sections

                            Standard Sections

                            SSAB’s cold-formed steel sections are suitable for practically any kind of steel structure, whether for commercial or residential buildings, machines or appliances.

                            The accuracy of the cross-sectional form and good formability for high-strength material makes it possible to create long-lasting and light structures.

                            Typical applications are frames and sub-frames, vehicle and trailer bodies, warehouse equipment and masts.


                            Replacing hot-rolled beams with cold-formed open sections

                            SSAB’s cold-formed steel sections are suitable for replacing hot-rolled beams in many applications.
                            Learn more

                            The benefits to choose cold-formed section are

                            • The accuracy of the cross-sectional form and better straightness compared to the hot-rolled beam.?
                            • Dimensions for cold-formed sections are almost unlimited.?
                            • Cold-formed sections have a wide range of materials and the material can be selected depending what is the most appropriate to the application.?
                            • Section length can be adjusted to customer needs, thus reducing scrap and the need for further processing.


                            This U-section series has been developed with same outside dimensions as UNP-beams so that replacing hot-rolled beams is easier. Thickness is selected so that cold-formed U-section has the same bending strength but it weighs less. Weight saving has been achieved by using higher strength steel grade.

                            Cold-formed U-sections S355MC
                            ? Hot-rolled UNP-beams S235JR EN 10025-2
                            h/b
                            t M NR1) VR2) MR3) ? MR3) VR2) NR1) M UNP
                            mm/mm mm kg/m kN kN kNm ? kNm kN kN kg/m
                            50/38 5 4.27 193 43.8 2.82 ? 2.49 25.4* 167 5.59 50
                            65/42 5 5.17 234 57.6 4.5 ? 4.16 38.8* 212 7.09 65
                            80/45 5 6 271 71.2 6.4 ? 6.23 56.4 259 8.64 80
                            100/50 5 7.17 324 89.3 9.55 ? 9.68 71.1 317 10.6 100
                            120/55 6 9.91 448 127.6 15.48 ? 14.3 99 400 13.4 120
                            140/60 6 11.32 512 149.2 20.61 ? 20.3 116 479 16 140
                            160/65 6 12.73 576 170.7 26.45 ? 27.3 142 564 18.8 160
                            180/70 7 16.37 740 222.8 37.71 ? 35.3 170 658 22 180
                            200/75 7 18.02 815 247.8 46.1 ? 44.9 201 757 25.3 200
                            220/80 8 22.22 1005 309.7 61.59 ? 57.6 234 879 29.4 220
                            240/85 8 24.1 1090 338.2 72.92 ? 70.5 269 994 33.2 240
                            260/90 8 25.98 1175 366.7 85.2 ? 87.2 308 1135 37.9 260
                            280/95 9 31.18 1410 442.8 109.2 ? 105 333 1253 41.8 280
                            300/100 9 33.3 1506 474.8 125.03 ? 126 358 1382 46.2 300
                            320/100 11 41.71 1886 610.3 161.29 ? 160 520 1781 59.5 320
                            350/100 10.5 42.53 1923 635.1 177.71 ? 172 552 1817 60.6 350
                            400/110 11.5 52.53 2375 792.5 248.54 ? 240 650 2150 71.8 400

                            S355MC: fy = 355 Mpa
                            S235JR EN 10025-2: fy = 235 Mpa
                            1) Tension resistance NR = fy x A /γm
                            2) Shear resistance VR = 0.6 x fy x I x t /Sy/γm
                            3) Bending strenght MR = fy x W / γm
                            * VR = 0.6 x fy x hW x tw / γm; (hw = h - 2 x t)

                            Replacing hot-rolled beams with cold-formed open sections

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