CHS 48.3×4.5
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 | 4.5 mm | 0.177165 in |
| Outside diameter | 48.3 mm | 1.9016 in |
| Inside diameter | 39.3 mm | 1.5472 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 150,000 mm⁴ | 0.360376 in⁴ |
| Elastic modulus, Sₓ | 6,210 mm³ | 0.378957 in³ |
| Plastic modulus, Zₓ | 8,660 mm³ | 0.528466 in³ |
| Radius of gyration, rₓ | 15.6 mm | 0.614173 in |
| Distance to top fibre | 24.15 mm | 0.9507875 in |
| Distance to bottom fibre | 24.15 mm | 0.9507875 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 150,000 mm⁴ | 0.360376 in⁴ |
| Elastic modulus, S_y | 6,210 mm³ | 0.378957 in³ |
| Plastic modulus, Z_y | 8,660 mm³ | 0.528466 in³ |
| Radius of gyration, r_y | 15.6 mm | 0.614173 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 300,000 mm⁴ | 0.720753 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 4.86 kg/m | 3.2658 lb/ft |