IPE 120 — Dimensions, Weight & Section Properties
IPE I-beam per EN 10365 (DIN 1025-5)
IPE 120 is a IPE I-beam per EN 10365 (DIN 1025-5), 120 mm tall and 64 mm wide, weighing 10.4 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.
Dimensions (mm)
| Height h | 120 mm |
| Flange width b | 64 mm |
| Web thickness tₘ | 4.4 mm |
| Flange thickness tᶠ | 6.3 mm |
| Root radius r | 7 mm |
Weight & Cross-Section
| Weight per meter | 10.4 kg/m |
| Weight of a 6 m bar | 62.4 kg |
| Weight of a 12 m bar | 124.8 kg |
| Cross-section area A | 13.2 cm² |
Section Properties (strong / weak axis)
| Moment of inertia Iₓ | 318 cm⁴ |
| Section modulus Wₓ | 53 cm³ |
| Radius of gyration iₓ | 4.9 cm |
| Moment of inertia Iᵧ | 27.7 cm⁴ |
| Section modulus Wᵧ | 8.65 cm³ |
| Radius of gyration iᵧ | 1.45 cm |
Compared with the neighbouring sizes
| Profile | h × b (mm) | G (kg/m) | Iₓ (cm⁴) | Wₓ (cm³) | Δ weight | Δ Iₓ |
|---|---|---|---|---|---|---|
| IPE 100 | 100 × 55 | 8.1 | 171 | 34.2 | −22 % | −46 % |
| IPE 120 (this page) | 120 × 64 | 10.4 | 318 | 53 | — | — |
| IPE 140 | 140 × 73 | 12.9 | 541 | 77.3 | +24 % | +70 % |
Deflection example
A simply supported IPE 120 spanning 2 m with a 10 kN point load at midspan deflects 2.5 mm (E = 210 GPa, Ix = 318 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 IPE 120 weigh?
IPE 120 weighs 10.4 kg per meter. A standard 6 m bar weighs 62.4 kg and a 12 m bar 124.8 kg. The weight follows from the cross-section area of 13.2 cm² multiplied by the steel density of 7,850 kg/m³.
What are the dimensions of IPE 120?
IPE 120 is 120 mm tall and 64 mm wide, with a web thickness of 4.4 mm, a flange thickness of 6.3 mm, and a root radius of 7 mm, per EN 10365 (DIN 1025-5).
What is the moment of inertia of IPE 120?
About the strong axis, Ix = 318 cm⁴ with a section modulus Wx = 53 cm³. About the weak axis, Iy = 27.7 cm⁴ and Wy = 8.65 cm³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
IPE 120 or IPE 140 — what does one size up change?
IPE 140 is about 24% heavier (12.9 vs 10.4 kg/m) but about 70% stiffer (Ix 541 vs 318 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