RHS 90×50×3.2
Rectangular 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 |
|---|---|---|
| Height | 90 mm | 3.5433 in |
| Width | 50 mm | 1.9685 in |
| Thickness, t | 3.2 mm | 0.125984 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 891,000 mm⁴ | 2.1406 in⁴ |
| Elastic modulus, Sₓ | 19,800 mm³ | 1.2083 in³ |
| Plastic modulus, Zₓ | 24,600 mm³ | 1.5012 in³ |
| Radius of gyration, rₓ | 32.5 mm | 1.2795 in |
| Distance to top fibre | 45 mm | 1.7717 in |
| Distance to bottom fibre | 45 mm | 1.7717 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 353,000 mm⁴ | 0.848086 in⁴ |
| Elastic modulus, S_y | 14,100 mm³ | 0.860435 in³ |
| Plastic modulus, Z_y | 16,200 mm³ | 0.988585 in³ |
| Radius of gyration, r_y | 20.4 mm | 0.80315 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 809,000 mm⁴ | 1.9436 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 6.63 kg/m | 4.4552 lb/ft |