RHS 500×300×11
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 | 500 mm | 19.685 in |
| Width | 300 mm | 11.811 in |
| Thickness, t | 11 mm | 0.433071 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 586,000,000 mm⁴ | 1,407.871 in⁴ |
| Elastic modulus, Sₓ | 2,350,000 mm³ | 143.4058 in³ |
| Plastic modulus, Zₓ | 2,840,000 mm³ | 173.3074 in³ |
| Radius of gyration, rₓ | 186 mm | 7.3228 in |
| Distance to top fibre | 250 mm | 9.8425 in |
| Distance to bottom fibre | 250 mm | 9.8425 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 266,000,000 mm⁴ | 639.0676 in⁴ |
| Elastic modulus, S_y | 1,770,000 mm³ | 108.012 in³ |
| Plastic modulus, Z_y | 2,000,000 mm³ | 122.0475 in³ |
| Radius of gyration, r_y | 125 mm | 4.9213 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 573,000,000 mm⁴ | 1,376.638 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 133 kg/m | 89.3719 lb/ft |