RHS 120×80×8.8

Rectangular hollow sections from British-Sections-1 and Eurocode 3 UK shared angle/hollow tables.

80 mm120 mm

Outline drawn from the published dimensions. Fillets and root radii are not shown.

Dimensions

PropertyMetricImperial
Height120 mm4.7244 in
Width80 mm3.1496 in
Thickness, t8.8 mm0.346457 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ5,610,000 mm⁴13.4781 in⁴
Elastic modulus, Sₓ93,500 mm³5.7057 in³
Plastic modulus, Zₓ119,000 mm³7.2618 in³
Radius of gyration, rₓ42.4 mm1.6693 in
Distance to top fibre60 mm2.3622 in
Distance to bottom fibre60 mm2.3622 in

Bending about the minor axis

PropertyMetricImperial
Second moment of area, I_y2,900,000 mm⁴6.9673 in⁴
Elastic modulus, S_y72,400 mm³4.4181 in³
Plastic modulus, Z_y88,700 mm³5.4128 in³
Radius of gyration, r_y30.4 mm1.1969 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J6,290,000 mm⁴15.1118 in⁴

Mass

PropertyMetricImperial
Mass per metre24.5 kg/m16.4632 lb/ft
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