ДСТУ EN 10219-2
ДСТУ EN 10219-2 - Cold formed welded structural hollow sections of non-alloy and fine grain steels - Part 2: Tolerances, dimensions and sectional properties
Cold formed welded structural hollow sections: square up to 500 x 500 mm, rectangular up to 500 x 300 mm, wall thickness up to 40 mm. Identical adoption of EN 10219-2:2019. Sectional properties use the external corner radius of the standard: 2T up to 6 mm, 2,5T up to 10 mm, 3T above that.