HEA 280 — Dimensions, Weight & Section Properties
HEA wide-flange beam per EN 10365 (DIN 1025-3)
HEA 280 is a HEA wide-flange beam per EN 10365 (DIN 1025-3), 270 mm tall and 280 mm wide, weighing 76.4 kg per meter. All dimensions and section properties below are the standard published values used in structural design across Europe.
Typical uses: floor beams, columns, frames, and general steel construction. For a quick strength check, use the deflection example below or open the beam calculator with your own span and load.
HEA 280: cross-section drawn to scale from the tabulated dimensions (h 270, b 280, tw 8, tf 13, r 24 mm)Dimensions (mm)
| Height h | 270 mm |
| Flange width b | 280 mm |
| Web thickness tₘ | 8 mm |
| Flange thickness tᶠ | 13 mm |
| Root radius r | 24 mm |
Weight & Cross-Section
| Weight per meter | 76.4 kg/m |
| Weight of a 6 m bar | 458.4 kg |
| Weight of a 12 m bar | 916.8 kg |
| Cross-section area A | 97.3 cm² |
Section Properties (strong / weak axis)
| Moment of inertia Iₓ | 13,670 cm⁴ |
| Section modulus Wₓ | 1,013 cm³ |
| Radius of gyration iₓ | 11.9 cm |
| Moment of inertia Iᵧ | 4,763 cm⁴ |
| Section modulus Wᵧ | 340 cm³ |
| Radius of gyration iᵧ | 7 cm |
Compared with the neighbouring sizes
| Profile | h × b (mm) | G (kg/m) | Iₓ (cm⁴) | Wₓ (cm³) | Δ weight | Δ Iₓ |
|---|
| HEA 260 | 250 × 260 | 68.2 | 10,450 | 836 | −11 % | −24 % |
| HEA 280 (this page) | 270 × 280 | 76.4 | 13,670 | 1,013 | — | — |
| HEA 300 | 290 × 300 | 88.3 | 18,260 | 1,260 | +16 % | +34 % |
Deflection example
A simply supported HEA 280 spanning 5 m with a 10 kN point load at midspan deflects 0.91 mm (E = 210 GPa, Ix = 13,670 cm⁴). The L/360 serviceability limit for this span is 13.9 mm — the profile passes this quick check.
Calculate your own span and load →
Frequently Asked Questions
How much does HEA 280 weigh?
HEA 280 weighs 76.4 kg per meter. A standard 6 m bar weighs 458.4 kg and a 12 m bar 916.8 kg. The weight follows from the cross-section area of 97.3 cm² multiplied by the steel density of 7,850 kg/m³.
What are the dimensions of HEA 280?
HEA 280 is 270 mm tall and 280 mm wide, with a web thickness of 8 mm, a flange thickness of 13 mm, and a root radius of 24 mm, per EN 10365 (DIN 1025-3).
What is the moment of inertia of HEA 280?
About the strong axis, Ix = 13,670 cm⁴ with a section modulus Wx = 1,013 cm³. About the weak axis, Iy = 4,763 cm⁴ and Wy = 340 cm³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
HEA 280 or HEA 300 — what does one size up change?
HEA 300 is about 16% heavier (88.3 vs 76.4 kg/m) but about 34% stiffer (Ix 18,260 vs 13,670 cm⁴). Going one size up is usually the cheapest way to cut deflection, because stiffness grows much faster than weight.
Values are entered from the governing standard’s published tables and cross-checked programmatically against its mass and section formulas before publication. Spotted an error? Write to advertising@metalabout.net — verified corrections ship within days. About