HEA 800 vs HEB 800
- HEA 800 is 14 % lighter than HEB 800 (224.4 vs 262.3 kg/m).
- HEB 800 has 18 % higher strong-axis stiffness Iy.
- HEB 800 has 18 % higher weak-axis stiffness Iz, which governs columns and lateral stability.
- HEB 800 has 18 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, both are similarly efficient in bending (Iy/G ≈ 1 361 cm⁴ per kg/m).
| Property | HEA 800 | HEB 800 |
|---|---|---|
| Height h [mm] | 790 | 800 |
| Flange width b [mm] | 300 | 300 |
| Web thickness tw [mm] | 15.0 | 17.5 |
| Flange thickness tf [mm] | 28.0 | 33.0 |
| Area A [cm²] | 285.8 | 334.2 |
| Mass G [kg/m] | 224.4 | 262.3 |
| Moment of inertia Iy [cm⁴] | 303 400 | 359 100 |
| Elastic modulus Wel,y [cm³] | 7 682 | 8 977 |
| Plastic modulus Wpl,y [cm³] | 8 699 | 10 230 |
| Moment of inertia Iz [cm⁴] | 12 640 | 14 900 |
| Radius of gyration iy [mm] | 325.8 | 327.8 |
| Radius of gyration iz [mm] | 66.5 | 66.8 |
| Torsion constant It [cm⁴] | 609.6 | 962.1 |
| Warping constant Iw [×10³ cm⁶] | 18 113.0 | 21 617.0 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.