HEA 700 vs HEB 700
- HEA 700 is 15 % lighter than HEB 700 (204.5 vs 240.5 kg/m).
- HEB 700 has 19 % higher strong-axis stiffness Iy.
- HEB 700 has 19 % higher weak-axis stiffness Iz, which governs columns and lateral stability.
- HEB 700 has 18 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, both are similarly efficient in bending (Iy/G ≈ 1 061 cm⁴ per kg/m).
| Property | HEA 700 | HEB 700 |
|---|---|---|
| Height h [mm] | 690 | 700 |
| Flange width b [mm] | 300 | 300 |
| Web thickness tw [mm] | 14.5 | 17.0 |
| Flange thickness tf [mm] | 27.0 | 32.0 |
| Area A [cm²] | 260.5 | 306.4 |
| Mass G [kg/m] | 204.5 | 240.5 |
| Moment of inertia Iy [cm⁴] | 215 300 | 256 900 |
| Elastic modulus Wel,y [cm³] | 6 241 | 7 340 |
| Plastic modulus Wpl,y [cm³] | 7 032 | 8 327 |
| Moment of inertia Iz [cm⁴] | 12 180 | 14 440 |
| Radius of gyration iy [mm] | 287.5 | 289.6 |
| Radius of gyration iz [mm] | 68.4 | 68.7 |
| Torsion constant It [cm⁴] | 522.8 | 841.7 |
| Warping constant Iw [×10³ cm⁶] | 13 223.0 | 15 900.0 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.