RHS 80×40×8 - Section Properties

The RHS 80×40×8 is a rectangular hollow section with a mass of 12.5 kg/m, an overall depth of 80 mm and width of 40 mm and a wall thickness of 8 mm. It has a cross-sectional area of 16 cm², a second moment of area Iᵧ of 106 cm⁴, a plastic modulus Wₚₗ,ᵧ of 36.5 cm³, to BS EN 10210-2:2006 (SCI P363 Blue Book).

Mass

12.5 kg/m

Depth

80 mm

Width

40 mm

Wall thickness

8 mm

Area

16 cm²

PropertiesCapacity

mass (kg/m)12.5

t (mm)8

I_y (cm⁴)106

I_z (cm⁴)32.1

i_y (cm)2.58

i_z (cm)1.42

W_el,y (cm³)26.5

W_el,z (cm³)16.1

W_pl,y (cm³)36.5

W_pl,z (cm³)21.2

A (cm²)16

SA/m (m²/m)0.219

SA/t (m²/t)17.5