UPN 65
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 | 65 mm | 2.5591 in |
| Flange width, b_f | 42 mm | 1.6535 in |
| Web thickness, t_w | 5.5 mm | 0.216535 in |
| Flange thickness, t_f | 7.5 mm | 0.295276 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 575,000 mm⁴ | 1.3814 in⁴ |
| Elastic modulus, Sₓ | 17,700 mm³ | 1.0801 in³ |
| Plastic modulus, Zₓ | 21,700 mm³ | 1.3242 in³ |
| Radius of gyration, rₓ | 25.2 mm | 0.992126 in |
| Distance to top fibre | 32.5 mm | 1.2795 in |
| Distance to bottom fibre | 32.5 mm | 1.2795 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 141,000 mm⁴ | 0.338754 in⁴ |
| Elastic modulus, S_y | 5,000 mm³ | 0.305119 in³ |
| Plastic modulus, Z_y | 9,380 mm³ | 0.572403 in³ |
| Radius of gyration, r_y | 12.5 mm | 0.492126 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 16,100 mm⁴ | 0.03868 in⁴ |
| Warping constant, C_w | 80,000,000 mm⁶ | 0.297912 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 7.1 kg/m | 4.771 lb/ft |