CHS 193.7×12.5

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

193.7 mm193.7 mm

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

Dimensions

PropertyMetricImperial
Thickness, t12.5 mm0.492126 in
Outside diameter193.7 mm7.626 in
Inside diameter168.7 mm6.6417 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ29,300,000 mm⁴70.3935 in⁴
Elastic modulus, Sₓ303,000 mm³18.4902 in³
Plastic modulus, Zₓ411,000 mm³25.0808 in³
Radius of gyration, rₓ64.2 mm2.5276 in
Distance to top fibre96.85 mm3.813 in
Distance to bottom fibre96.85 mm3.813 in

Bending about the minor axis

PropertyMetricImperial
Second moment of area, I_y29,300,000 mm⁴70.3935 in⁴
Elastic modulus, S_y303,000 mm³18.4902 in³
Plastic modulus, Z_y411,000 mm³25.0808 in³
Radius of gyration, r_y64.2 mm2.5276 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J58,700,000 mm⁴141.0273 in⁴

Mass

PropertyMetricImperial
Mass per metre55.9 kg/m37.5631 lb/ft
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