RHS 400×200×10
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 | 400 mm | 15.748 in |
| Width | 200 mm | 7.874 in |
| Thickness, t | 10 mm | 0.393701 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 239,000,000 mm⁴ | 574.1998 in⁴ |
| Elastic modulus, Sₓ | 1,200,000 mm³ | 73.2285 in³ |
| Plastic modulus, Zₓ | 1,480,000 mm³ | 90.3151 in³ |
| Radius of gyration, rₓ | 144 mm | 5.6693 in |
| Distance to top fibre | 200 mm | 7.874 in |
| Distance to bottom fibre | 200 mm | 7.874 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 80,800,000 mm⁴ | 194.1228 in⁴ |
| Elastic modulus, S_y | 808,000 mm³ | 49.3072 in³ |
| Plastic modulus, Z_y | 911,000 mm³ | 55.5926 in³ |
| Radius of gyration, r_y | 83.9 mm | 3.3032 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 193,000,000 mm⁴ | 463.6844 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 90.2 kg/m | 60.6116 lb/ft |