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.

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.

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.

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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	N_R¹⁾	V_R²⁾	M_R³⁾	M_R³⁾	V_R²⁾	N_R¹⁾	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