CF RHS 70×40×4 - Section Properties

The CF RHS 70×40×4 is a rectangular hollow section with a mass of 6.08 kg/m, an overall depth of 70 mm and width of 40 mm and a wall thickness of 4 mm. It has a cross-sectional area of 7.75 cm², a second moment of area Iᵧ of 46 cm⁴, a plastic modulus Wₚₗ,ᵧ of 16.8 cm³, to BS EN 10219-2:2006 (SCI P363 Blue Book).

Mass

6.08 kg/m

Depth

70 mm

Width

40 mm

Wall thickness

4 mm

Area

7.75 cm²

PropertiesCapacity

mass (kg/m)6.08

t (mm)4

I_y (cm⁴)46

I_z (cm⁴)18.9

i_y (cm)2.44

i_z (cm)1.56

W_el,y (cm³)13.1

W_el,z (cm³)9.44

W_pl,y (cm³)16.8

W_pl,z (cm³)11.3

A (cm²)7.75

SA/m (m²/m)0.206

SA/t (m²/t)33.8