UPN 320
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 | 320 mm | 12.5984 in |
| Flange width, b_f | 100 mm | 3.937 in |
| Web thickness, t_w | 14 mm | 0.551181 in |
| Flange thickness, t_f | 17.5 mm | 0.688976 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 109,000,000 mm⁴ | 261.8735 in⁴ |
| Elastic modulus, Sₓ | 679,000 mm³ | 41.4351 in³ |
| Plastic modulus, Zₓ | 826,000 mm³ | 50.4056 in³ |
| Radius of gyration, rₓ | 121 mm | 4.7638 in |
| Distance to top fibre | 160 mm | 6.2992 in |
| Distance to bottom fibre | 160 mm | 6.2992 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 5,970,000 mm⁴ | 14.343 in⁴ |
| Elastic modulus, S_y | 81,000 mm³ | 4.9429 in³ |
| Plastic modulus, Z_y | 152,000 mm³ | 9.2756 in³ |
| Radius of gyration, r_y | 28.1 mm | 1.1063 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 667,000 mm⁴ | 1.6025 in⁴ |
| Warping constant, C_w | 9.61000e+10 mm⁶ | 357.8665 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 59.5 kg/m | 39.9822 lb/ft |