RHS 100×50×8
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 mm | 0.314961 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 2,300,000 mm⁴ | 5.5258 in⁴ |
| Elastic modulus, Sₓ | 46,000 mm³ | 2.8071 in³ |
| Plastic modulus, Zₓ | 61,400 mm³ | 3.7469 in³ |
| Radius of gyration, rₓ | 33.3 mm | 1.311 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 | 717,000 mm⁴ | 1.7226 in⁴ |
| Elastic modulus, S_y | 28,700 mm³ | 1.7514 in³ |
| Plastic modulus, Z_y | 36,300 mm³ | 2.2152 in³ |
| Radius of gyration, r_y | 18.6 mm | 0.732283 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 1,860,000 mm⁴ | 4.4687 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 16.3 kg/m | 10.9531 lb/ft |