CHS 88.9×10
Circular hollow sections from Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness, t | 10 mm | 0.393701 in |
| Outside diameter | 88.9 mm | 3.5 in |
| Inside diameter | 68.9 mm | 2.7126 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 1,960,000 mm⁴ | 4.7089 in⁴ |
| Elastic modulus, Sₓ | 44,100 mm³ | 2.6911 in³ |
| Plastic modulus, Zₓ | 62,600 mm³ | 3.8201 in³ |
| Radius of gyration, rₓ | 28.1 mm | 1.1063 in |
| Distance to top fibre | 44.45 mm | 1.75 in |
| Distance to bottom fibre | 44.45 mm | 1.75 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 1,960,000 mm⁴ | 4.7089 in⁴ |
| Elastic modulus, S_y | 44,100 mm³ | 2.6911 in³ |
| Plastic modulus, Z_y | 62,600 mm³ | 3.8201 in³ |
| Radius of gyration, r_y | 28.1 mm | 1.1063 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 3,920,000 mm⁴ | 9.4178 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 19.5 kg/m | 13.1034 lb/ft |