RHS 260×180×8
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 | 260 mm | 10.2362 in |
| Width | 180 mm | 7.0866 in |
| Thickness, t | 8 mm | 0.314961 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 63,900,000 mm⁴ | 153.5204 in⁴ |
| Elastic modulus, Sₓ | 492,000 mm³ | 30.0237 in³ |
| Plastic modulus, Zₓ | 592,000 mm³ | 36.1261 in³ |
| Radius of gyration, rₓ | 97.5 mm | 3.8386 in |
| Distance to top fibre | 130 mm | 5.1181 in |
| Distance to bottom fibre | 130 mm | 5.1181 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 36,100,000 mm⁴ | 86.7306 in⁴ |
| Elastic modulus, S_y | 401,000 mm³ | 24.4705 in³ |
| Plastic modulus, Z_y | 459,000 mm³ | 28.0099 in³ |
| Radius of gyration, r_y | 73.3 mm | 2.8858 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 72,200,000 mm⁴ | 173.4612 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 52.7 kg/m | 35.4128 lb/ft |