RHS 300×200×10

Rectangular hollow sections from Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1.

200 mm300 mm

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

Dimensions

PropertyMetricImperial
Height300 mm11.811 in
Width200 mm7.874 in
Thickness, t10 mm0.393701 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ118,000,000 mm⁴283.4961 in⁴
Elastic modulus, Sₓ788,000 mm³48.0867 in³
Plastic modulus, Zₓ956,000 mm³58.3387 in³
Radius of gyration, rₓ112 mm4.4094 in
Distance to top fibre150 mm5.9055 in
Distance to bottom fibre150 mm5.9055 in

Bending about the minor axis

PropertyMetricImperial
Second moment of area, I_y62,800,000 mm⁴150.8776 in⁴
Elastic modulus, S_y628,000 mm³38.3229 in³
Plastic modulus, Z_y721,000 mm³43.9981 in³
Radius of gyration, r_y81.3 mm3.2008 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J129,000,000 mm⁴309.9237 in⁴

Mass

PropertyMetricImperial
Mass per metre74.5 kg/m50.0617 lb/ft
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