RHS 200×120×7.1
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 | 7.1 mm | 0.279528 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 22,900,000 mm⁴ | 55.0175 in⁴ |
| Elastic modulus, Sₓ | 229,000 mm³ | 13.9744 in³ |
| Plastic modulus, Zₓ | 281,000 mm³ | 17.1477 in³ |
| Radius of gyration, rₓ | 73 mm | 2.874 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 | 10,200,000 mm⁴ | 24.5056 in⁴ |
| Elastic modulus, S_y | 171,000 mm³ | 10.4351 in³ |
| Plastic modulus, Z_y | 197,000 mm³ | 12.0217 in³ |
| Radius of gyration, r_y | 48.9 mm | 1.9252 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 22,500,000 mm⁴ | 54.0565 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 33.7 kg/m | 22.6454 lb/ft |