IPN 140 — Dimensions, Weight & Section Properties
IPN I-beam per EN 10365 (DIN 1025-1)
IPN 140 is a IPN I-beam per EN 10365 (DIN 1025-1), 140 mm tall and 66 mm wide, weighing 14.3 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 | 140 mm |
| Flange width b | 66 mm |
| Web thickness tₘ | 5.7 mm |
| Flange thickness tᶠ | 8.6 mm |
| Root radius r | 5.7 mm |
Weight & Cross-Section
| Weight per meter | 14.3 kg/m |
| Weight of a 6 m bar | 85.8 kg |
| Weight of a 12 m bar | 171.6 kg |
| Cross-section area A | 18.2 cm² |
Section Properties (strong / weak axis)
| Moment of inertia Iₓ | 573 cm⁴ |
| Section modulus Wₓ | 81.9 cm³ |
| Radius of gyration iₓ | 5.61 cm |
| Moment of inertia Iᵧ | 35.2 cm⁴ |
| Section modulus Wᵧ | 10.7 cm³ |
| Radius of gyration iᵧ | 1.4 cm |
Compared with the neighbouring sizes
| Profile | h × b (mm) | G (kg/m) | Iₓ (cm⁴) | Wₓ (cm³) | Δ weight | Δ Iₓ |
|---|---|---|---|---|---|---|
| IPN 120 | 120 × 58 | 11.1 | 328 | 54.7 | −22 % | −43 % |
| IPN 140 (this page) | 140 × 66 | 14.3 | 573 | 81.9 | — | — |
| IPN 160 | 160 × 74 | 17.9 | 935 | 117 | +25 % | +63 % |
Deflection example
A simply supported IPN 140 spanning 3 m with a 10 kN point load at midspan deflects 4.67 mm (E = 210 GPa, Ix = 573 cm⁴). The L/360 serviceability limit for this span is 8.3 mm — the profile passes this quick check.
Calculate your own span and load →
Frequently Asked Questions
How much does IPN 140 weigh?
IPN 140 weighs 14.3 kg per meter. A standard 6 m bar weighs 85.8 kg and a 12 m bar 171.6 kg. The weight follows from the cross-section area of 18.2 cm² multiplied by the steel density of 7,850 kg/m³.
What are the dimensions of IPN 140?
IPN 140 is 140 mm tall and 66 mm wide, with a web thickness of 5.7 mm, a flange thickness of 8.6 mm, and a root radius of 5.7 mm, per EN 10365 (DIN 1025-1).
What is the moment of inertia of IPN 140?
About the strong axis, Ix = 573 cm⁴ with a section modulus Wx = 81.9 cm³. About the weak axis, Iy = 35.2 cm⁴ and Wy = 10.7 cm³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
IPN 140 or IPN 160 — what does one size up change?
IPN 160 is about 25% heavier (17.9 vs 14.3 kg/m) but about 63% stiffer (Ix 935 vs 573 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