RHS 100×50×8.8
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 | 100 mm | 3.937 in |
| Width | 50 mm | 1.9685 in |
| Thickness, t | 8.8 mm | 0.346457 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 2,430,000 mm⁴ | 5.8381 in⁴ |
| Elastic modulus, Sₓ | 48,500 mm³ | 2.9597 in³ |
| Plastic modulus, Zₓ | 65,600 mm³ | 4.0032 in³ |
| Radius of gyration, rₓ | 32.9 mm | 1.2953 in |
| Distance to top fibre | 50 mm | 1.9685 in |
| Distance to bottom fibre | 50 mm | 1.9685 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 748,000 mm⁴ | 1.7971 in⁴ |
| Elastic modulus, S_y | 29,900 mm³ | 1.8246 in³ |
| Plastic modulus, Z_y | 38,500 mm³ | 2.3494 in³ |
| Radius of gyration, r_y | 18.2 mm | 0.716535 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 1,970,000 mm⁴ | 4.7329 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 17.6 kg/m | 11.8267 lb/ft |