Technical information

ArcelorMittal seamless hollow sections are produced through a hot manufacturing process in which a steel billet used as raw material is heated to a high temperature in order for it to become malleable. At this high temperature, the billet goes through four process steps: 1) The hot billet is forced through a piercing machine where the hollow section of the circular shape is obtained. 2) The hot hollow section is passed through a duo mill where it achieves final thickness. 3) The section is passed through a reeler machine for surface lamination. 4) The section passes through sizing roller stands where the final shape and dimensions of the tubes are achieved. Finally, end cutting, non-destructive testing (NDT), visual inspection, heat treatment, and end finishing are performed in a finishing area.

These products meet all of the EN 10210 standard requirements.