RHS 250×100×10
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 | 250 mm | 9.8425 in |
| Width | 100 mm | 3.937 in |
| Thickness, t | 10 mm | 0.393701 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 47,300,000 mm⁴ | 113.6387 in⁴ |
| Elastic modulus, Sₓ | 379,000 mm³ | 23.128 in³ |
| Plastic modulus, Zₓ | 491,000 mm³ | 29.9627 in³ |
| Radius of gyration, rₓ | 85.4 mm | 3.3622 in |
| Distance to top fibre | 125 mm | 4.9213 in |
| Distance to bottom fibre | 125 mm | 4.9213 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 10,700,000 mm⁴ | 25.7069 in⁴ |
| Elastic modulus, S_y | 214,000 mm³ | 13.0591 in³ |
| Plastic modulus, Z_y | 251,000 mm³ | 15.317 in³ |
| Radius of gyration, r_y | 40.6 mm | 1.5984 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 29,100,000 mm⁴ | 69.913 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 51 kg/m | 34.2704 lb/ft |