SHS 350/12.5 is a cold-formed square hollow section per EN 10219: side 350 mm, wall thickness 12.5 mm, weight 127.2 kg/m, cross-section area 162 cm², moment of inertia Iy = 30040 cm⁴, elastic section modulus Wel,y = 1717 cm³.
Geometry
Side dimension350.00 mm
Wall thickness t12.50 mm
Outer corner radius ro37.50 mm
Inner corner radius ri25.00 mm
Cross-section area A162.040 cm²
Weight G steel 7850 kg/m³127.20kg/m
Section properties
IⓘSecond moment of area30 040.000 cm⁴
WelⓘElastic section modulus1 717.000 cm³
WplⓘPlastic section modulus2 020.000 cm³
iⓘRadius of gyration136.20 mm
ItⓘSt. Venant torsion constant: resistance to uniform torsion49 390.000 cm⁴