IPN 120
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 | 120 mm | 4.7244 in |
| Flange width, b_f | 58 mm | 2.2835 in |
| Web thickness, t_w | 5.1 mm | 0.200787 in |
| Flange thickness, t_f | 7.7 mm | 0.30315 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 3,280,000 mm⁴ | 7.8802 in⁴ |
| Elastic modulus, Sₓ | 54,700 mm³ | 3.338 in³ |
| Plastic modulus, Zₓ | 63,600 mm³ | 3.8811 in³ |
| Radius of gyration, rₓ | 48 mm | 1.8898 in |
| Distance to top fibre | 60 mm | 2.3622 in |
| Distance to bottom fibre | 60 mm | 2.3622 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 215,000 mm⁴ | 0.51654 in⁴ |
| Elastic modulus, S_y | 7,410 mm³ | 0.452186 in³ |
| Plastic modulus, Z_y | 12,400 mm³ | 0.756694 in³ |
| Radius of gyration, r_y | 12 mm | 0.472441 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 27,100 mm⁴ | 0.065108 in⁴ |
| Warping constant, C_w | 690,000,000 mm⁶ | 2.5695 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 11.1 kg/m | 7.4589 lb/ft |