EN 10210-1 Hot finished structural hollow sections of non-alloy and fine grain structural steel.
DIN 17121 Seamless structural steel circular tubes for structural engineering purposes.
DIN 17124 Seamless circular tubes of fine grain steel for engineering purposes.
according to EN 10210-1: S235JRH, S275J0H, S275J2H, S275NLH, S355J0H, S355J2H, S355NH, S355NLH, S420NH, S420NLH, S460NH, S460NLH
according to DIN 17124: EStE255, EStE285, EStE355, EStE420, EStE460, RSt37-2, St37-3, St44-2, St44-3, St52-3, StE255, StE285, StE355, StE420, StE460, TStE255, TStE285, TStE355, TStE420, TStE460
Outside diameter: from 10,2 mm to 139,7 mm
Wall thickness: from 0,5 mm to 12,5 mm
Tubes from outside diameter D ≥ 21,3 mm and wall thickness T ≥ 2,3 mm are supplied hot finished. Other dimensions and precision tubes are produced by cold drawing.
Structural hollow sections are supplied in packages with a circular or hexagonal diameter with a weight of 300 to 3500 kilograms. The tubes are bound with a steel band. It is also possible to wrap tubes in plastic sheets, burlap or in wooden crates.
It is possible to galvanize all construction steel grades, but the quality, appearance and thickness of layer depend on the chemical composition of steel (Si + P). To avoid the corrosion process it is recommended that the content of Si + P was in the range of 0.13% – 0.28%.