CHS 101.6×5
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 mm | 0.19685 in |
| Outside diameter | 101.6 mm | 4 in |
| Inside diameter | 91.6 mm | 3.6063 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 1,770,000 mm⁴ | 4.2524 in⁴ |
| Elastic modulus, Sₓ | 34,900 mm³ | 2.1297 in³ |
| Plastic modulus, Zₓ | 46,700 mm³ | 2.8498 in³ |
| Radius of gyration, rₓ | 34.2 mm | 1.3465 in |
| Distance to top fibre | 50.8 mm | 2 in |
| Distance to bottom fibre | 50.8 mm | 2 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 1,770,000 mm⁴ | 4.2524 in⁴ |
| Elastic modulus, S_y | 34,900 mm³ | 2.1297 in³ |
| Plastic modulus, Z_y | 46,700 mm³ | 2.8498 in³ |
| Radius of gyration, r_y | 34.2 mm | 1.3465 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 3,550,000 mm⁴ | 8.5289 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 11.9 kg/m | 7.9964 lb/ft |