RHS 200×120×5
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 | 120 mm | 4.7244 in |
| Thickness, t | 5 mm | 0.19685 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 16,800,000 mm⁴ | 40.3622 in⁴ |
| Elastic modulus, Sₓ | 168,000 mm³ | 10.252 in³ |
| Plastic modulus, Zₓ | 205,000 mm³ | 12.5099 in³ |
| Radius of gyration, rₓ | 74 mm | 2.9134 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 | 7,620,000 mm⁴ | 18.3071 in⁴ |
| Elastic modulus, S_y | 127,000 mm³ | 7.75 in³ |
| Plastic modulus, Z_y | 144,000 mm³ | 8.7874 in³ |
| Radius of gyration, r_y | 49.8 mm | 1.9606 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 16,500,000 mm⁴ | 39.6414 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 24.1 kg/m | 16.1945 lb/ft |