RHS 180×100×10
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 | 180 mm | 7.0866 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 | 20,400,000 mm⁴ | 49.0112 in⁴ |
| Elastic modulus, Sₓ | 226,000 mm³ | 13.7914 in³ |
| Plastic modulus, Zₓ | 288,000 mm³ | 17.5748 in³ |
| Radius of gyration, rₓ | 63.2 mm | 2.4882 in |
| Distance to top fibre | 90 mm | 3.5433 in |
| Distance to bottom fibre | 90 mm | 3.5433 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 7,870,000 mm⁴ | 18.9078 in⁴ |
| Elastic modulus, S_y | 157,000 mm³ | 9.5807 in³ |
| Plastic modulus, Z_y | 188,000 mm³ | 11.4725 in³ |
| Radius of gyration, r_y | 39.3 mm | 1.5472 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 18,600,000 mm⁴ | 44.6867 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 40 kg/m | 26.8788 lb/ft |