HEA 120 — Dimensions, Weight & Section Properties
HEA wide-flange beam per EN 10365 (DIN 1025-3)
HEA 120 is a HEA wide-flange beam per EN 10365 (DIN 1025-3), 114 mm tall and 120 mm wide, weighing 19.9 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.
Dimensions (mm)
| Height h | 114 mm |
| Flange width b | 120 mm |
| Web thickness tₘ | 5 mm |
| Flange thickness tᶠ | 8 mm |
| Root radius r | 12 mm |
Weight & Cross-Section
| Weight per meter | 19.9 kg/m |
| Weight of a 6 m bar | 119.4 kg |
| Weight of a 12 m bar | 238.8 kg |
| Cross-section area A | 25.3 cm² |
Section Properties (strong / weak axis)
| Moment of inertia Iₓ | 606 cm⁴ |
| Section modulus Wₓ | 106 cm³ |
| Radius of gyration iₓ | 4.89 cm |
| Moment of inertia Iᵧ | 231 cm⁴ |
| Section modulus Wᵧ | 38.5 cm³ |
| Radius of gyration iᵧ | 3.02 cm |
Compared with the neighbouring sizes
| Profile | h × b (mm) | G (kg/m) | Iₓ (cm⁴) | Wₓ (cm³) | Δ weight | Δ Iₓ |
|---|---|---|---|---|---|---|
| HEA 100 | 96 × 100 | 16.7 | 349 | 72.8 | −16 % | −42 % |
| HEA 120 (this page) | 114 × 120 | 19.9 | 606 | 106 | — | — |
| HEA 140 | 133 × 140 | 24.7 | 1,033 | 155 | +24 % | +70 % |
Deflection example
A simply supported HEA 120 spanning 2 m with a 10 kN point load at midspan deflects 1.31 mm (E = 210 GPa, Ix = 606 cm⁴). The L/360 serviceability limit for this span is 5.6 mm — the profile passes this quick check.
Calculate your own span and load →
Frequently Asked Questions
How much does HEA 120 weigh?
HEA 120 weighs 19.9 kg per meter. A standard 6 m bar weighs 119.4 kg and a 12 m bar 238.8 kg. The weight follows from the cross-section area of 25.3 cm² multiplied by the steel density of 7,850 kg/m³.
What are the dimensions of HEA 120?
HEA 120 is 114 mm tall and 120 mm wide, with a web thickness of 5 mm, a flange thickness of 8 mm, and a root radius of 12 mm, per EN 10365 (DIN 1025-3).
What is the moment of inertia of HEA 120?
About the strong axis, Ix = 606 cm⁴ with a section modulus Wx = 106 cm³. About the weak axis, Iy = 231 cm⁴ and Wy = 38.5 cm³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
HEA 120 or HEA 140 — what does one size up change?
HEA 140 is about 24% heavier (24.7 vs 19.9 kg/m) but about 70% stiffer (Ix 1,033 vs 606 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