CHS 42.4×3.2
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 | 3.2 mm | 0.125984 in |
| Outside diameter | 42.4 mm | 1.6693 in |
| Inside diameter | 36 mm | 1.4173 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 76,200 mm⁴ | 0.183071 in⁴ |
| Elastic modulus, Sₓ | 3,590 mm³ | 0.219075 in³ |
| Plastic modulus, Zₓ | 4,930 mm³ | 0.300847 in³ |
| Radius of gyration, rₓ | 13.9 mm | 0.547244 in |
| Distance to top fibre | 21.2 mm | 0.8346455 in |
| Distance to bottom fibre | 21.2 mm | 0.8346455 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 76,200 mm⁴ | 0.183071 in⁴ |
| Elastic modulus, S_y | 3,590 mm³ | 0.219075 in³ |
| Plastic modulus, Z_y | 4,930 mm³ | 0.300847 in³ |
| Radius of gyration, r_y | 13.9 mm | 0.547244 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 152,000 mm⁴ | 0.365181 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 3.09 kg/m | 2.0764 lb/ft |