SHS 40/2.5 is a cold-formed square hollow section per EN 10219: side 40 mm, wall thickness 2.5 mm, weight 2.8 kg/m, cross-section area 3.6 cm², moment of inertia Iy = 8.2 cm⁴, elastic section modulus Wel,y = 4.1 cm³.
Geometry
Side dimension40.00 mm
Wall thickness t2.50 mm
Outer corner radius ro5.00 mm
Inner corner radius ri2.50 mm
Cross-section area A3.590 cm²
Weight G steel 7850 kg/m³2.82kg/m
Section properties
IⓘSecond moment of area8.215 cm⁴
WelⓘElastic section modulus4.108 cm³
WplⓘPlastic section modulus4.967 cm³
iⓘRadius of gyration15.10 mm
ItⓘSt. Venant torsion constant: resistance to uniform torsion13.610 cm⁴