RHS 180×100/4 is a cold-formed rectangular hollow section per EN 10219: height 180 mm, width 100 mm, wall thickness 4 mm, weight 16.8 kg/m, cross-section area 21.4 cm², moment of inertia Iy = 926 cm⁴, elastic section modulus Wel,y = 102.9 cm³.
Geometry
Height h180.00 mm
Width b100.00 mm
Wall thickness t4.00 mm
Outer corner radius ro8.00 mm
Inner corner radius ri4.00 mm
Cross-section area A21.350 cm²
Weight G steel 7850 kg/m³16.80kg/m
Section properties
Axis yAxis z
IⓘSecond moment of area about y-axis (strong axis)926.000 cm⁴373.900 cm⁴
WelⓘElastic section modulus102.900 cm³74.780 cm³
WplⓘPlastic section modulus125.900 cm³84.020 cm³
ItⓘSt. Venant torsion constant: resistance to uniform torsion853.800 cm⁴