SHS 80×80×7.1

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

80 mm80 mm

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

Dimensions

PropertyMetricImperial
Height80 mm3.1496 in
Width80 mm3.1496 in
Thickness, t7.1 mm0.279528 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ1,760,000 mm⁴4.2284 in⁴
Elastic modulus, Sₓ43,900 mm³2.6789 in³
Plastic modulus, Zₓ54,500 mm³3.3258 in³
Radius of gyration, rₓ29.5 mm1.1614 in
Distance to top fibre40 mm1.5748 in
Distance to bottom fibre40 mm1.5748 in

Bending about the minor axis

PropertyMetricImperial
Second moment of area, I_y1,760,000 mm⁴4.2284 in⁴
Elastic modulus, S_y43,900 mm³2.6789 in³
Plastic modulus, Z_y54,500 mm³3.3258 in³
Radius of gyration, r_y29.5 mm1.1614 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J2,860,000 mm⁴6.8712 in⁴

Mass

PropertyMetricImperial
Mass per metre15.8 kg/m10.6171 lb/ft
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