RHS 500×300×8.8
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 | 500 mm | 19.685 in |
| Width | 300 mm | 11.811 in |
| Thickness, t | 8.8 mm | 0.346457 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 478,000,000 mm⁴ | 1,148.4 in⁴ |
| Elastic modulus, Sₓ | 1,910,000 mm³ | 116.5554 in³ |
| Plastic modulus, Zₓ | 2,300,000 mm³ | 140.3546 in³ |
| Radius of gyration, rₓ | 187 mm | 7.3622 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 | 218,000,000 mm⁴ | 523.7471 in⁴ |
| Elastic modulus, S_y | 1,450,000 mm³ | 88.4844 in³ |
| Plastic modulus, Z_y | 1,620,000 mm³ | 98.8585 in³ |
| Radius of gyration, r_y | 126 mm | 4.9606 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 466,000,000 mm⁴ | 1,119.569 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 107 kg/m | 71.9007 lb/ft |