UPN 180 — Dimensions, Weight & Section Properties
UPN channel per DIN 1026-1
UPN 180 is a UPN channel per DIN 1026-1, 180 mm tall and 70 mm wide, weighing 22 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 | 180 mm |
| Flange width b | 70 mm |
| Web thickness tₘ | 8 mm |
| Flange thickness tᶠ | 11 mm |
| Root radius r | 11 mm |
Weight & Cross-Section
| Weight per meter | 22 kg/m |
| Weight of a 6 m bar | 132 kg |
| Weight of a 12 m bar | 264 kg |
| Cross-section area A | 28 cm² |
Section Properties (strong / weak axis)
| Moment of inertia Iₓ | 1,350 cm⁴ |
| Section modulus Wₓ | 150 cm³ |
| Radius of gyration iₓ | 6.95 cm |
| Moment of inertia Iᵧ | 114 cm⁴ |
| Section modulus Wᵧ | 22.4 cm³ |
| Radius of gyration iᵧ | 2.02 cm |
Compared with the neighbouring sizes
| Profile | h × b (mm) | G (kg/m) | Iₓ (cm⁴) | Wₓ (cm³) | Δ weight | Δ Iₓ |
|---|---|---|---|---|---|---|
| UPN 160 | 160 × 65 | 18.8 | 925 | 116 | −15 % | −31 % |
| UPN 180 (this page) | 180 × 70 | 22 | 1,350 | 150 | — | — |
| UPN 200 | 200 × 75 | 25.3 | 1,910 | 191 | +15 % | +41 % |
Deflection example
A simply supported UPN 180 spanning 4 m with a 10 kN point load at midspan deflects 4.7 mm (E = 210 GPa, Ix = 1,350 cm⁴). The L/360 serviceability limit for this span is 11.1 mm — the profile passes this quick check.
Calculate your own span and load →
Frequently Asked Questions
How much does UPN 180 weigh?
UPN 180 weighs 22 kg per meter. A standard 6 m bar weighs 132 kg and a 12 m bar 264 kg. The weight follows from the cross-section area of 28 cm² multiplied by the steel density of 7,850 kg/m³.
What are the dimensions of UPN 180?
UPN 180 is 180 mm tall and 70 mm wide, with a web thickness of 8 mm, a flange thickness of 11 mm, and a root radius of 11 mm, per DIN 1026-1.
What is the moment of inertia of UPN 180?
About the strong axis, Ix = 1,350 cm⁴ with a section modulus Wx = 150 cm³. About the weak axis, Iy = 114 cm⁴ and Wy = 22.4 cm³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
UPN 180 or UPN 200 — what does one size up change?
UPN 200 is about 15% heavier (25.3 vs 22 kg/m) but about 41% stiffer (Ix 1,910 vs 1,350 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