UPN 180
UPN taper flange channels 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 |
|---|---|---|
| Depth, d | 180 mm | 7.0866 in |
| Flange width, b_f | 70 mm | 2.7559 in |
| Web thickness, t_w | 8 mm | 0.314961 in |
| Flange thickness, t_f | 11 mm | 0.433071 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 13,500,000 mm⁴ | 32.4339 in⁴ |
| Elastic modulus, Sₓ | 150,000 mm³ | 9.1536 in³ |
| Plastic modulus, Zₓ | 179,000 mm³ | 10.9233 in³ |
| Radius of gyration, rₓ | 69.5 mm | 2.7362 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 | 1,140,000 mm⁴ | 2.7389 in⁴ |
| Elastic modulus, S_y | 22,000 mm³ | 1.3425 in³ |
| Plastic modulus, Z_y | 42,900 mm³ | 2.6179 in³ |
| Radius of gyration, r_y | 20.2 mm | 0.795276 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 95,500 mm⁴ | 0.22944 in⁴ |
| Warping constant, C_w | 5.57000e+9 mm⁶ | 20.7421 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 22 kg/m | 14.7833 lb/ft |