IPN 180
IPN taper flange beams 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 | 180 mm | 7.0866 in |
| Flange width, b_f | 82 mm | 3.2283 in |
| Web thickness, t_w | 6.9 mm | 0.271654 in |
| Flange thickness, t_f | 10.4 mm | 0.409449 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 14,500,000 mm⁴ | 34.8364 in⁴ |
| Elastic modulus, Sₓ | 161,000 mm³ | 9.8248 in³ |
| Plastic modulus, Zₓ | 187,000 mm³ | 11.4114 in³ |
| Radius of gyration, rₓ | 72 mm | 2.8346 in |
| Distance to top fibre | 90 mm | 3.5433 in |
| Distance to bottom fibre | 90 mm | 3.5433 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 813,000 mm⁴ | 1.9532 in⁴ |
| Elastic modulus, S_y | 19,800 mm³ | 1.2083 in³ |
| Plastic modulus, Z_y | 33,200 mm³ | 2.026 in³ |
| Radius of gyration, r_y | 17 mm | 0.669291 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 95,800 mm⁴ | 0.23016 in⁴ |
| Warping constant, C_w | 5.92000e+9 mm⁶ | 22.0455 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 21.9 kg/m | 14.7161 lb/ft |