UPN 280
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 | 280 mm | 11.0236 in |
| Flange width, b_f | 95 mm | 3.7402 in |
| Web thickness, t_w | 10 mm | 0.393701 in |
| Flange thickness, t_f | 15 mm | 0.590551 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 62,800,000 mm⁴ | 150.8776 in⁴ |
| Elastic modulus, Sₓ | 448,000 mm³ | 27.3386 in³ |
| Plastic modulus, Zₓ | 532,000 mm³ | 32.4646 in³ |
| Radius of gyration, rₓ | 109 mm | 4.2913 in |
| Distance to top fibre | 140 mm | 5.5118 in |
| Distance to bottom fibre | 140 mm | 5.5118 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 3,990,000 mm⁴ | 9.586 in⁴ |
| Elastic modulus, S_y | 57,000 mm³ | 3.4784 in³ |
| Plastic modulus, Z_y | 109,000 mm³ | 6.6516 in³ |
| Radius of gyration, r_y | 27.4 mm | 1.0787 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 310,000 mm⁴ | 0.744778 in⁴ |
| Warping constant, C_w | 4.85000e+10 mm⁶ | 180.609 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 41.8 kg/m | 28.0883 lb/ft |