HE 300 M
HE wide flange sections 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 | 340 mm | 13.3858 in |
| Flange width, b_f | 310 mm | 12.2047 in |
| Web thickness, t_w | 21 mm | 0.826772 in |
| Flange thickness, t_f | 39 mm | 1.5354 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 592,000,000 mm⁴ | 1,422.286 in⁴ |
| Elastic modulus, Sₓ | 3,480,000 mm³ | 212.3626 in³ |
| Plastic modulus, Zₓ | 4,080,000 mm³ | 248.9769 in³ |
| Radius of gyration, rₓ | 140 mm | 5.5118 in |
| Distance to top fibre | 170 mm | 6.6929 in |
| Distance to bottom fibre | 170 mm | 6.6929 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 194,000,000 mm⁴ | 466.0869 in⁴ |
| Elastic modulus, S_y | 1,250,000 mm³ | 76.2797 in³ |
| Plastic modulus, Z_y | 1,910,000 mm³ | 116.5554 in³ |
| Radius of gyration, r_y | 80 mm | 3.1496 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 14,100,000 mm⁴ | 33.8754 in⁴ |
| Warping constant, C_w | 4.39000e+12 mm⁶ | 16,347.909 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 238 kg/m | 159.9286 lb/ft |