Abstract
AbstractCold‐formed hollow sections are the dominant tubular construction material. The applicability of cold‐formed tubes is sometimes questioned because of doubts about low‐temperature ductility, deformation capacity of welded joints, suitability for welding in the cold‐formed corner, poor fatigue behaviour of the corner or suitability for hot‐dip galvanizing. It is also claimed that by choosing hot‐finished tubes, such risks can be automatically avoided. This study confirms that appropriate tube manufacturing yields cold‐formed EN 10219 tubes in grades S355J2H to S460MH with a performance equal to or better than hot‐finished tubes. Properly made cold‐formed high‐strength tubes are available for fabricating efficient lightweight structures and can be safely used even at low temperatures without the aforementioned doubts.
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