UPN 120
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 | 120 mm | 4.7244 in |
| Flange width, b_f | 55 mm | 2.1654 in |
| Web thickness, t_w | 7 mm | 0.275591 in |
| Flange thickness, t_f | 9 mm | 0.354331 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 3,640,000 mm⁴ | 8.7451 in⁴ |
| Elastic modulus, Sₓ | 60,700 mm³ | 3.7041 in³ |
| Plastic modulus, Zₓ | 72,600 mm³ | 4.4303 in³ |
| Radius of gyration, rₓ | 46.2 mm | 1.8189 in |
| Distance to top fibre | 60 mm | 2.3622 in |
| Distance to bottom fibre | 60 mm | 2.3622 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 432,000 mm⁴ | 1.0379 in⁴ |
| Elastic modulus, S_y | 11,000 mm³ | 0.671261 in³ |
| Plastic modulus, Z_y | 21,200 mm³ | 1.2937 in³ |
| Radius of gyration, r_y | 15.9 mm | 0.625984 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 41,500 mm⁴ | 0.099704 in⁴ |
| Warping constant, C_w | 900,000,000 mm⁶ | 3.3515 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 13.4 kg/m | 9.0044 lb/ft |