HEA 180 beam: weight per metre and dimensions
HEA 180 weighs 35.5 kg per metre. A 6 m bar is 213 kg, a 12 m bar 426 kg, and a tonne is about 28.2 m of this section. Nominal values to EN 10365: depth 171 mm, flange width 180 mm.
Another length or a whole order: the beam weight calculator opens with HEA 180 already selected.
HEA 180 dimensions
| Dimension | Symbol | Value |
|---|---|---|
| Depth | h | 171 mm |
| Flange width | b | 180 mm |
| Web thickness | tw | 6 mm |
| Flange thickness | tf | 9.5 mm |
| Root radius | r | 15 mm |
| Cross-section area | A | 45.3 cm² |
| Mass per metre | G | 35.5 kg/m |
The number in the designation is not the depth: HEA 180 is 171 mm deep with a 180 mm flange. A delivered bar may differ from these nominal values within the rolling tolerances of EN 10034; invoicing goes by the mill certificate, not by the table.
HEA 180 weight by length
| Length, m | Mass, kg |
|---|---|
| 1 | 35.5 |
| 2 | 71 |
| 3 | 106.5 |
| 4 | 142 |
| 5 | 177.5 |
| 6 | 213 |
| 8 | 284 |
| 10 | 355 |
| 12 | 426 |
Steel cost is mass times the price per kilogram: at a price C per kg a 12 m bar costs 426 × C and a 6 m bar 213 × C. Cutting, drilling and painting are priced separately; paint goes by surface area, not by weight.
HEA 180 section properties
| Property | Symbol | Value |
|---|---|---|
| Second moment of area, major axis | Iy | 2510 cm⁴ |
| Elastic section modulus, major axis | Wel,y | 293.6 cm³ |
| Radius of gyration, major axis | iy | 7.44 cm |
| Second moment of area, minor axis | Iz | 924.6 cm⁴ |
| Elastic section modulus, minor axis | Wel,z | 102.7 cm³ |
Iy governs deflection, Wel,y bending stress, iy the slenderness of a strut. Iy / Iz = 2.7: in vertical bending the section is 2.7 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.
HEA 180 next to neighbouring sizes
| Section | h, mm | b, mm | kg/m | Iy, cm⁴ |
|---|---|---|---|---|
| HEA 160 | 152 | 160 | 30.4 | 1672 |
| HEA 180 | 171 | 180 | 35.5 | 2510 |
| HEA 200 | 190 | 200 | 42.3 | 3692 |
| IPE 180 | 180 | 91 | 18.8 | 1316 |
| HEB 180 | 180 | 180 | 51.2 | 3831 |
| UPN 180 | 180 | 70 | 22 | 1350 |
Against HEA 180 at the same number: IPE 180 — mass ×0.5, Iy ×0.5; HEB 180 — mass ×1.4, Iy ×1.5; UPN 180 — mass ×0.6, Iy ×0.5. One size up, HEA 200 adds 19 % mass and 47 % 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 HEA 180 weigh?
HEA 180 weighs 35.5 kg/m, so a 6 m bar is 213 kg and a 12 m bar 426 kg. Ten 12 m bars come to 4260 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). The wide-flange HE sections carry load in both planes and go into columns; IPE is the lighter floor beam for bending in one plane.
What does 180 mean in HEA 180?
The size in the HE range, not the actual depth: HEA 180 is 171 mm deep with a 180 mm flange. HEA is the light series of wide-flange beams and is shallower than its number; HEB 180 is exactly 180 mm deep.
How many metres of HEA 180 are in a tonne?
28.2 m: 1000 kg / 35.5 kg/m. That is about 4.7 bars of 6 m or 2.3 bars of 12 m.
Does S235 or S355 steel change the weight of HEA 180?
No. The table mass is the cross-section area times the density of steel, 7850 kg/m³: 45.3 cm² × 0.785 = 35.56 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 10034.
Updated: