CHS 244.5×8

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

244.5 mm244.5 mm

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

Dimensions

PropertyMetricImperial
Thickness, t8 mm0.314961 in
Outside diameter244.5 mm9.626 in
Inside diameter228.5 mm8.9961 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ41,600,000 mm⁴99.9444 in⁴
Elastic modulus, Sₓ340,000 mm³20.7481 in³
Plastic modulus, Zₓ448,000 mm³27.3386 in³
Radius of gyration, rₓ83.7 mm3.2953 in
Distance to top fibre122.25 mm4.813 in
Distance to bottom fibre122.25 mm4.813 in

Bending about the minor axis

PropertyMetricImperial
Second moment of area, I_y41,600,000 mm⁴99.9444 in⁴
Elastic modulus, S_y340,000 mm³20.7481 in³
Plastic modulus, Z_y448,000 mm³27.3386 in³
Radius of gyration, r_y83.7 mm3.2953 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J83,200,000 mm⁴199.8888 in⁴

Mass

PropertyMetricImperial
Mass per metre46.7 kg/m31.381 lb/ft
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