CHS 193.7×6.3

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, t6.3 mm0.248031 in
Outside diameter193.7 mm7.626 in
Inside diameter181.1 mm7.1299 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ16,300,000 mm⁴39.1609 in⁴
Elastic modulus, Sₓ168,000 mm³10.252 in³
Plastic modulus, Zₓ221,000 mm³13.4862 in³
Radius of gyration, rₓ66.3 mm2.6102 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_y16,300,000 mm⁴39.1609 in⁴
Elastic modulus, S_y168,000 mm³10.252 in³
Plastic modulus, Z_y221,000 mm³13.4862 in³
Radius of gyration, r_y66.3 mm2.6102 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J32,600,000 mm⁴78.3218 in⁴

Mass

PropertyMetricImperial
Mass per metre29.1 kg/m19.5543 lb/ft
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