CHS 219.1×12.5

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

219.1 mm219.1 mm

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

Dimensions

PropertyMetricImperial
Thickness, t12.5 mm0.492126 in
Outside diameter219.1 mm8.626 in
Inside diameter194.1 mm7.6417 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ43,400,000 mm⁴104.2689 in⁴
Elastic modulus, Sₓ397,000 mm³24.2264 in³
Plastic modulus, Zₓ534,000 mm³32.5867 in³
Radius of gyration, rₓ73.2 mm2.8819 in
Distance to top fibre109.55 mm4.313 in
Distance to bottom fibre109.55 mm4.313 in

Bending about the minor axis

PropertyMetricImperial
Second moment of area, I_y43,400,000 mm⁴104.2689 in⁴
Elastic modulus, S_y397,000 mm³24.2264 in³
Plastic modulus, Z_y534,000 mm³32.5867 in³
Radius of gyration, r_y73.2 mm2.8819 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J86,900,000 mm⁴208.7781 in⁴

Mass

PropertyMetricImperial
Mass per metre63.7 kg/m42.8044 lb/ft
Analyse a beam with this section
↑↓ to move · ↵ to open · esc to close⌘K