CHS 355.6×14.2

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

355.6 mm355.6 mm

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

Dimensions

PropertyMetricImperial
Thickness, t14.2 mm0.559055 in
Outside diameter355.6 mm14 in
Inside diameter327.2 mm12.8819 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ222,000,000 mm⁴533.3571 in⁴
Elastic modulus, Sₓ1,250,000 mm³76.2797 in³
Plastic modulus, Zₓ1,660,000 mm³101.2994 in³
Radius of gyration, rₓ121 mm4.7638 in
Distance to top fibre177.8 mm7 in
Distance to bottom fibre177.8 mm7 in

Bending about the minor axis

PropertyMetricImperial
Second moment of area, I_y222,000,000 mm⁴533.3571 in⁴
Elastic modulus, S_y1,250,000 mm³76.2797 in³
Plastic modulus, Z_y1,660,000 mm³101.2994 in³
Radius of gyration, r_y121 mm4.7638 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J445,000,000 mm⁴1,069.117 in⁴

Mass

PropertyMetricImperial
Mass per metre120 kg/m80.6363 lb/ft
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