RHS 200×120×8
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 | 200 mm | 7.874 in |
| Width | 120 mm | 4.7244 in |
| Thickness, t | 8 mm | 0.314961 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 25,300,000 mm⁴ | 60.7835 in⁴ |
| Elastic modulus, Sₓ | 253,000 mm³ | 15.439 in³ |
| Plastic modulus, Zₓ | 313,000 mm³ | 19.1004 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 | 11,300,000 mm⁴ | 27.1484 in⁴ |
| Elastic modulus, S_y | 188,000 mm³ | 11.4725 in³ |
| Plastic modulus, Z_y | 218,000 mm³ | 13.3032 in³ |
| Radius of gyration, r_y | 48.5 mm | 1.9094 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 25,000,000 mm⁴ | 60.0627 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 37.6 kg/m | 25.266 lb/ft |