CHS 26.9×2.6

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

26.9 mm26.9 mm

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

Dimensions

PropertyMetricImperial
Thickness, t2.6 mm0.102362 in
Outside diameter26.9 mm1.0591 in
Inside diameter21.7 mm0.854331 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ14,800 mm⁴0.035557 in⁴
Elastic modulus, Sₓ1,100 mm³0.067126 in³
Plastic modulus, Zₓ1,540 mm³0.093977 in³
Radius of gyration, rₓ8.64 mm0.340157 in
Distance to top fibre13.45 mm0.5295275 in
Distance to bottom fibre13.45 mm0.5295275 in

Bending about the minor axis

PropertyMetricImperial
Second moment of area, I_y14,800 mm⁴0.035557 in⁴
Elastic modulus, S_y1,100 mm³0.067126 in³
Plastic modulus, Z_y1,540 mm³0.093977 in³
Radius of gyration, r_y8.64 mm0.340157 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J29,600 mm⁴0.071114 in⁴

Mass

PropertyMetricImperial
Mass per metre1.56 kg/m1.0483 lb/ft
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