RHS 80×40×4 - Section Properties

The RHS 80×40×4 is a rectangular hollow section with a mass of 6.9 kg/m, an overall depth of 80 mm and width of 40 mm and a wall thickness of 4 mm. It has a cross-sectional area of 8.79 cm², a second moment of area Iᵧ of 68.2 cm⁴, a plastic modulus Wₚₗ,ᵧ of 21.8 cm³, to BS EN 10210-2:2006 (SCI P363 Blue Book).

Mass

6.9 kg/m

Depth

80 mm

Width

40 mm

Wall thickness

4 mm

Area

8.79 cm²

PropertiesCapacity

mass (kg/m)6.9

t (mm)4

I_y (cm⁴)68.2

I_z (cm⁴)22.2

i_y (cm)2.79

i_z (cm)1.59

W_el,y (cm³)17.1

W_el,z (cm³)11.1

W_pl,y (cm³)21.8

W_pl,z (cm³)13.2

A (cm²)8.79

SA/m (m²/m)0.23

SA/t (m²/t)33.4