UPN 350
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 | 350 mm | 13.7795 in |
| Flange width, b_f | 100 mm | 3.937 in |
| Web thickness, t_w | 14 mm | 0.551181 in |
| Flange thickness, t_f | 16 mm | 0.629921 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 128,000,000 mm⁴ | 307.5212 in⁴ |
| Elastic modulus, Sₓ | 734,000 mm³ | 44.7914 in³ |
| Plastic modulus, Zₓ | 918,000 mm³ | 56.0198 in³ |
| Radius of gyration, rₓ | 129 mm | 5.0787 in |
| Distance to top fibre | 175 mm | 6.8898 in |
| Distance to bottom fibre | 175 mm | 6.8898 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 5,700,000 mm⁴ | 13.6943 in⁴ |
| Elastic modulus, S_y | 75,000 mm³ | 4.5768 in³ |
| Plastic modulus, Z_y | 143,000 mm³ | 8.7264 in³ |
| Radius of gyration, r_y | 27.2 mm | 1.0709 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 612,000 mm⁴ | 1.4703 in⁴ |
| Warping constant, C_w | 1.14000e+11 mm⁶ | 424.5243 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 60.6 kg/m | 40.7213 lb/ft |