RHS 500×200×8
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 | 200 mm | 7.874 in |
| Thickness, t | 8 mm | 0.314961 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 340,000,000 mm⁴ | 816.8533 in⁴ |
| Elastic modulus, Sₓ | 1,360,000 mm³ | 82.9923 in³ |
| Plastic modulus, Zₓ | 1,710,000 mm³ | 104.3506 in³ |
| Radius of gyration, rₓ | 177 mm | 6.9685 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 | 81,400,000 mm⁴ | 195.5643 in⁴ |
| Elastic modulus, S_y | 814,000 mm³ | 49.6733 in³ |
| Plastic modulus, Z_y | 896,000 mm³ | 54.6773 in³ |
| Radius of gyration, r_y | 86.5 mm | 3.4055 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 211,000,000 mm⁴ | 506.9295 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 85.4 kg/m | 57.3862 lb/ft |