RHS 300×250×16
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 | 250 mm | 9.8425 in |
| Thickness, t | 16 mm | 0.629921 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 206,000,000 mm⁴ | 494.917 in⁴ |
| Elastic modulus, Sₓ | 1,380,000 mm³ | 84.2128 in³ |
| Plastic modulus, Zₓ | 1,670,000 mm³ | 101.9097 in³ |
| Radius of gyration, rₓ | 112 mm | 4.4094 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 | 155,000,000 mm⁴ | 372.389 in⁴ |
| Elastic modulus, S_y | 1,240,000 mm³ | 75.6694 in³ |
| Plastic modulus, Z_y | 1,470,000 mm³ | 89.7049 in³ |
| Radius of gyration, r_y | 97.4 mm | 3.8346 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 281,000,000 mm⁴ | 675.1052 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 128 kg/m | 86.012 lb/ft |