UPN 180 channel: weight per metre and dimensions
UPN 180 weighs 22 kg per metre. A 6 m bar is 132 kg, a 12 m bar 264 kg, and a tonne is about 45.5 m of this section. Nominal values to DIN 1026-1: depth 180 mm, flange width 70 mm.
Another length or a whole order: the channel weight calculator opens with UPN 180 already selected.
UPN 180 dimensions
| Dimension | Symbol | Value |
|---|---|---|
| Depth | h | 180 mm |
| Flange width | b | 70 mm |
| Web thickness | tw | 8 mm |
| Flange thickness | tf | 11 mm |
| Root radius | r | 11 mm |
| Cross-section area | A | 28 cm² |
| Mass per metre | G | 22 kg/m |
A delivered bar may differ from these nominal values within the rolling tolerances of EN 10279; invoicing goes by the mill certificate, not by the table.
UPN 180 weight by length
| Length, m | Mass, kg |
|---|---|
| 1 | 22 |
| 2 | 44 |
| 3 | 66 |
| 4 | 88 |
| 5 | 110 |
| 6 | 132 |
| 8 | 176 |
| 10 | 220 |
| 12 | 264 |
Steel cost is mass times the price per kilogram: at a price C per kg a 12 m bar costs 264 × C and a 6 m bar 132 × C. Cutting, drilling and painting are priced separately; paint goes by surface area, not by weight.
UPN 180 section properties
| Property | Symbol | Value |
|---|---|---|
| Second moment of area, major axis | Iy | 1350 cm⁴ |
| Elastic section modulus, major axis | Wel,y | 150 cm³ |
| Radius of gyration, major axis | iy | 6.94 cm |
| Second moment of area, minor axis | Iz | 114 cm⁴ |
| Elastic section modulus, minor axis, at the flange tip | Wel,z | 22.4 cm³ |
Iy governs deflection, Wel,y bending stress, iy the slenderness of a strut. Iy / Iz = 11.8: in vertical bending the section is 11.8 times stiffer than sideways. Source: ArcelorMittal catalogue “Sections and Merchant Bars” (2023), each value checked against a second, independent table. These are inputs for a check to EN 1993-1-1, not a load capacity.
UPN 180 next to neighbouring sizes
| Section | h, mm | b, mm | kg/m | Iy, cm⁴ |
|---|---|---|---|---|
| UPN 160 | 160 | 65 | 18.8 | 925 |
| UPN 180 | 180 | 70 | 22 | 1350 |
| UPN 200 | 200 | 75 | 25.3 | 1910 |
| IPE 180 | 180 | 91 | 18.8 | 1316 |
| HEA 180 | 171 | 180 | 35.5 | 2510 |
| HEB 180 | 180 | 180 | 51.2 | 3831 |
Against UPN 180 at the same number: IPE 180 — mass ×0.9, Iy ×1; HEA 180 — mass ×1.6, Iy ×1.9; HEB 180 — mass ×2.3, Iy ×2.8. One size up, UPN 200 adds 15 % mass and 41 % Iy.
Other sizes
- IPE beams: IPE 100 · IPE 120 · IPE 140 · IPE 160 · IPE 180 · IPE 200 · IPE 220 · IPE 240 · IPE 270 · IPE 300
- HEA beams: HEA 100 · HEA 120 · HEA 140 · HEA 160 · HEA 180 · HEA 200 · HEA 220 · HEA 240 · HEA 260 · HEA 280 · HEA 300
- HEB beams: HEB 100 · HEB 120 · HEB 140 · HEB 160 · HEB 180 · HEB 200 · HEB 220 · HEB 240 · HEB 260 · HEB 280 · HEB 300
- UPN channels: UPN 100 · UPN 120 · UPN 140 · UPN 160 · UPN 180 · UPN 200 · UPN 220 · UPN 240 · UPN 260 · UPN 280 · UPN 300
Frequently asked questions
How much does a 6 m and a 12 m UPN 180 weigh?
UPN 180 weighs 22 kg/m, so a 6 m bar is 132 kg and a 12 m bar 264 kg. Ten 12 m bars come to 2640 kg.
Which is heavier: IPE 180, HEA 180, HEB 180 or UPN 180?
Per metre: HEB 180 — 51.2 kg/m (h 180 mm); HEA 180 — 35.5 kg/m (h 171 mm); UPN 180 — 22 kg/m (h 180 mm); IPE 180 — 18.8 kg/m (h 180 mm). UPN is a channel and is not symmetric about its web — a different member for different jobs, compared here by weight only.
What does 180 mean in UPN 180?
The nominal depth in millimetres: UPN 180 is 180 mm deep with a 70 mm flange. The letters give the series: UPN, a channel with tapered flanges.
How many metres of UPN 180 are in a tonne?
45.5 m: 1000 kg / 22 kg/m. That is about 7.6 bars of 6 m or 3.8 bars of 12 m.
Does S235 or S355 steel change the weight of UPN 180?
No. The table mass is the cross-section area times the density of steel, 7850 kg/m³: 28 cm² × 0.785 = 21.98 kg/m. The grade to EN 10025-2 sets strength, not density. A real bar differs from nominal only within the rolling tolerances of EN 10279.
Updated: