IPN 550 — Dimensions, Weight & Section Properties
IPN I-beam per EN 10365 (DIN 1025-1)
IPN 550 is a IPN I-beam per EN 10365 (DIN 1025-1), 550 mm tall and 200 mm wide, weighing 166 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 | 550 mm |
| Flange width b | 200 mm |
| Web thickness tₘ | 19 mm |
| Flange thickness tᶠ | 30 mm |
| Root radius r | 19 mm |
Weight & Cross-Section
| Weight per meter | 166 kg/m |
| Weight of a 6 m bar | 996 kg |
| Weight of a 12 m bar | 1,992 kg |
| Cross-section area A | 212 cm² |
Section Properties (strong / weak axis)
| Moment of inertia Iₓ | 99,180 cm⁴ |
| Section modulus Wₓ | 3,610 cm³ |
| Radius of gyration iₓ | 21.6 cm |
| Moment of inertia Iᵧ | 3,490 cm⁴ |
| Section modulus Wᵧ | 349 cm³ |
| Radius of gyration iᵧ | 4.02 cm |
Compared with the neighbouring sizes
| Profile | h × b (mm) | G (kg/m) | Iₓ (cm⁴) | Wₓ (cm³) | Δ weight | Δ Iₓ |
|---|---|---|---|---|---|---|
| IPN 500 | 500 × 185 | 141 | 68,740 | 2,750 | −15 % | −31 % |
| IPN 550 (this page) | 550 × 200 | 166 | 99,180 | 3,610 | — | — |
| IPN 600 | 600 × 215 | 199 | 138,800 | 4,627 | +20 % | +40 % |
Deflection example
A simply supported IPN 550 spanning 11 m with a 10 kN point load at midspan deflects 1.33 mm (E = 210 GPa, Ix = 99,180 cm⁴). The L/360 serviceability limit for this span is 30.6 mm — the profile passes this quick check.
Calculate your own span and load →
Frequently Asked Questions
How much does IPN 550 weigh?
IPN 550 weighs 166 kg per meter. A standard 6 m bar weighs 996 kg and a 12 m bar 1,992 kg. The weight follows from the cross-section area of 212 cm² multiplied by the steel density of 7,850 kg/m³.
What are the dimensions of IPN 550?
IPN 550 is 550 mm tall and 200 mm wide, with a web thickness of 19 mm, a flange thickness of 30 mm, and a root radius of 19 mm, per EN 10365 (DIN 1025-1).
What is the moment of inertia of IPN 550?
About the strong axis, Ix = 99,180 cm⁴ with a section modulus Wx = 3,610 cm³. About the weak axis, Iy = 3,490 cm⁴ and Wy = 349 cm³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
IPN 550 or IPN 600 — what does one size up change?
IPN 600 is about 20% heavier (199 vs 166 kg/m) but about 40% stiffer (Ix 138,800 vs 99,180 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