RHS 100×40/3 is a cold-formed rectangular hollow section per EN 10219: height 100 mm, width 40 mm, wall thickness 3 mm, weight 6.1 kg/m, cross-section area 7.8 cm², moment of inertia Iy = 92.3 cm⁴, elastic section modulus Wel,y = 18.5 cm³.
Geometry
Height h100.00 mm
Width b40.00 mm
Wall thickness t3.00 mm
Outer corner radius ro6.00 mm
Inner corner radius ri3.00 mm
Cross-section area A7.810 cm²
Weight G steel 7850 kg/m³6.13kg/m
Section properties
Axis yAxis z
IⓘSecond moment of area about y-axis (strong axis)92.340 cm⁴21.670 cm⁴
WelⓘElastic section modulus18.470 cm³10.840 cm³
WplⓘPlastic section modulus23.750 cm³12.380 cm³
ItⓘSt. Venant torsion constant: resistance to uniform torsion59.050 cm⁴