RHS 120×80×3.6

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, t3.6 mm0.141732 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ2,760,000 mm⁴6.6309 in⁴
Elastic modulus, Sₓ46,000 mm³2.8071 in³
Plastic modulus, Zₓ55,600 mm³3.3929 in³
Radius of gyration, rₓ44.8 mm1.7638 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_y1,470,000 mm⁴3.5317 in⁴
Elastic modulus, S_y36,700 mm³2.2396 in³
Plastic modulus, Z_y42,000 mm³2.563 in³
Radius of gyration, r_y32.7 mm1.2874 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J3,010,000 mm⁴7.2316 in⁴

Mass

PropertyMetricImperial
Mass per metre10.8 kg/m7.2573 lb/ft
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