CHS 139.7×10
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 | 139.7 mm | 5.5 in |
| Inside diameter | 119.7 mm | 4.7126 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 8,620,000 mm⁴ | 20.7096 in⁴ |
| Elastic modulus, Sₓ | 123,000 mm³ | 7.5059 in³ |
| Plastic modulus, Zₓ | 169,000 mm³ | 10.313 in³ |
| Radius of gyration, rₓ | 46 mm | 1.811 in |
| Distance to top fibre | 69.85 mm | 2.75 in |
| Distance to bottom fibre | 69.85 mm | 2.75 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 8,620,000 mm⁴ | 20.7096 in⁴ |
| Elastic modulus, S_y | 123,000 mm³ | 7.5059 in³ |
| Plastic modulus, Z_y | 169,000 mm³ | 10.313 in³ |
| Radius of gyration, r_y | 46 mm | 1.811 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 17,200,000 mm⁴ | 41.3232 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 32 kg/m | 21.503 lb/ft |