RHS 200×100×4
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 | 200 mm | 7.874 in |
| Width | 100 mm | 3.937 in |
| Thickness, t | 4 mm | 0.15748 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 12,200,000 mm⁴ | 29.3106 in⁴ |
| Elastic modulus, Sₓ | 122,000 mm³ | 7.4449 in³ |
| Plastic modulus, Zₓ | 150,000 mm³ | 9.1536 in³ |
| Radius of gyration, rₓ | 72.6 mm | 2.8583 in |
| Distance to top fibre | 100 mm | 3.937 in |
| Distance to bottom fibre | 100 mm | 3.937 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 4,160,000 mm⁴ | 9.9944 in⁴ |
| Elastic modulus, S_y | 83,200 mm³ | 5.0772 in³ |
| Plastic modulus, Z_y | 92,800 mm³ | 5.663 in³ |
| Radius of gyration, r_y | 42.4 mm | 1.6693 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 9,830,000 mm⁴ | 23.6167 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 18.2 kg/m | 12.2298 lb/ft |