CHS 139.7×5.6
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 | 5.6 mm | 0.220472 in |
| Outside diameter | 139.7 mm | 5.5 in |
| Inside diameter | 128.5 mm | 5.0591 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 5,310,000 mm⁴ | 12.7573 in⁴ |
| Elastic modulus, Sₓ | 76,100 mm³ | 4.6439 in³ |
| Plastic modulus, Zₓ | 101,000 mm³ | 6.1634 in³ |
| Radius of gyration, rₓ | 47.5 mm | 1.8701 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 | 5,310,000 mm⁴ | 12.7573 in⁴ |
| Elastic modulus, S_y | 76,100 mm³ | 4.6439 in³ |
| Plastic modulus, Z_y | 101,000 mm³ | 6.1634 in³ |
| Radius of gyration, r_y | 47.5 mm | 1.8701 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 10,600,000 mm⁴ | 25.4666 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 18.5 kg/m | 12.4314 lb/ft |