RHS 250×100×6.3
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 | 6.3 mm | 0.248031 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 32,100,000 mm⁴ | 77.1206 in⁴ |
| Elastic modulus, Sₓ | 257,000 mm³ | 15.6831 in³ |
| Plastic modulus, Zₓ | 326,000 mm³ | 19.8937 in³ |
| Radius of gyration, rₓ | 87.3 mm | 3.437 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 | 7,510,000 mm⁴ | 18.0428 in⁴ |
| Elastic modulus, S_y | 150,000 mm³ | 9.1536 in³ |
| Plastic modulus, Z_y | 169,000 mm³ | 10.313 in³ |
| Radius of gyration, r_y | 42.2 mm | 1.6614 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 19,800,000 mm⁴ | 47.5697 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 33 kg/m | 22.175 lb/ft |