RHS 300×200×7.1
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 | 300 mm | 11.811 in |
| Width | 200 mm | 7.874 in |
| Thickness, t | 7.1 mm | 0.279528 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 87,300,000 mm⁴ | 209.7391 in⁴ |
| Elastic modulus, Sₓ | 582,000 mm³ | 35.5158 in³ |
| Plastic modulus, Zₓ | 698,000 mm³ | 42.5946 in³ |
| Radius of gyration, rₓ | 113 mm | 4.4488 in |
| Distance to top fibre | 150 mm | 5.9055 in |
| Distance to bottom fibre | 150 mm | 5.9055 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 46,700,000 mm⁴ | 112.1972 in⁴ |
| Elastic modulus, S_y | 467,000 mm³ | 28.4981 in³ |
| Plastic modulus, Z_y | 528,000 mm³ | 32.2205 in³ |
| Radius of gyration, r_y | 82.6 mm | 3.252 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 94,700,000 mm⁴ | 227.5177 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 53.7 kg/m | 36.0847 lb/ft |