RHS 100×40/5 is a cold-formed rectangular hollow section per EN 10219: height 100 mm, width 40 mm, wall thickness 5 mm, weight 9.7 kg/m, cross-section area 12.4 cm², moment of inertia Iy = 135.6 cm⁴, elastic section modulus Wel,y = 27.1 cm³.
Geometry
Height h100.00 mm
Width b40.00 mm
Wall thickness t5.00 mm
Outer corner radius ro10.00 mm
Inner corner radius ri5.00 mm
Cross-section area A12.360 cm²
Weight G steel 7850 kg/m³9.70kg/m
Section properties
Axis yAxis z
IⓘSecond moment of area about y-axis (strong axis)135.600 cm⁴30.760 cm⁴
WelⓘElastic section modulus27.120 cm³15.380 cm³
WplⓘPlastic section modulus36.090 cm³18.520 cm³
ItⓘSt. Venant torsion constant: resistance to uniform torsion87.920 cm⁴