IPE 180 weight and dimensions
18.8 kg/m · 12.63 lb/ft
IPE 180 is a 180 mm deep beam with a 91 mm flange, 5.3 mm web and 8 mm flange thickness. It weighs 18.8 kg per metre (12.63 lb/ft). It belongs to the IPE European I-beam series, European (EN).
IPE 180 weight calculator
Weight of standard lengths
| Pieces | 6 m each (kg) | 12 m each (kg) |
|---|---|---|
| 1 | 112.8 | 225.6 |
| 5 | 564.0 | 1,128.0 |
| 10 | 1,128.0 | 2,256.0 |
| 20 | 2,256.0 | 4,512.0 |
| 50 | 5,640.0 | 11,280.0 |
Pieces per tonne
| 6 m lengths per metric tonne | 8.9 |
| 12 m lengths per metric tonne | 4.4 |
| Length per tonne | 53.2 m |
Useful for converting a tonnage order into a number of bars.
Surface area for painting
| Per metre of length | 0.698 m²/m |
| Per foot of length | 2.29 ft²/ft |
| Per tonne of steel | 37.1 m²/t |
| A 12 m length | 8.38 m² |
Outside perimeter × length, all faces, calculated from the dimensions. Use it to estimate paint, primer, fireproofing or galvanizing quantities.
Cross-section
Drawn to scale. Dimensions in mm.
Dimensions
| Depth h | 180 mm | 7.087 in |
| Flange width b | 91 mm | 3.583 in |
| Web thickness tw | 5.3 mm | 0.209 in |
| Flange thickness tf | 8 mm | 0.315 in |
| Root radius r | 9 mm | 0.354 in |
| Mass | 18.8 kg/m | 12.63 lb/ft |
Section properties
| Property | Value | Unit |
|---|---|---|
| Area | 23.95 | cm² |
| Moment of inertia Ix | 1,317 | cm⁴ |
| Moment of inertia Iy | 101 | cm⁴ |
| Elastic modulus Zx | 146 | cm³ |
| Elastic modulus Zy | 22.15 | cm³ |
| Radius of gyration rx | 7.42 | cm |
| Radius of gyration ry | 2.05 | cm |
Equivalent sections in other standards
The closest sections by depth and weight. They are not direct substitutes: check bending, buckling and connection details before swapping one for another.
IPE 180 and its closest equivalents, drawn over each other at the same scale.
| Section | Standard | Depth (mm) | kg/m | Weight vs IPE 180 |
|---|---|---|---|---|
| IPE 180 | EN | 180 | 18.8 | — |
| ISMB 175 | IS | 175 | 19.50 | +3.7% |
| ISWB 175 | IS | 175 | 22.06 | +17.3% |
| W8x13 | AISC | 203 | 19.30 | +2.7% |
| W6x12 | AISC | 153 | 18.00 | -4.3% |
IPE series weights
Next lighter: IPE 160 (15.77 kg/m). Next heavier: IPE 200 (22.36 kg/m).
Stiffness and strength per kilogram
The elastic section modulus Zx governs bending strength. Dividing it by the weight shows how efficiently each size uses its steel: higher is better when weight is the cost driver.
| Section | kg/m | Ix (cm⁴) | Zx (cm³) | Zx per kg/m |
|---|---|---|---|---|
| IPE 120 | 10.37 | 318 | 52.9 | 5.11 |
| IPE 140 | 12.89 | 541 | 77.3 | 6.00 |
| IPE 160 | 15.77 | 869 | 108.7 | 6.89 |
| IPE 180 | 18.80 | 1,317 | 146.3 | 7.78 |
| IPE 200 | 22.36 | 1,943 | 194.3 | 8.69 |
| IPE 220 | 26.20 | 2,772 | 252.0 | 9.62 |
| IPE 240 | 30.71 | 3,892 | 324.3 | 10.56 |
Full table: IPE beam weight chart (PDF).
How the weight is calculated
Mass per metre = cross-sectional area × density of steel = 23.95 cm² × 0.785 kg/(cm²·m) = 18.80 kg/m.
Rolled sections are made to a nominal mass, and the actual mass can differ by a few percent within the tolerances of EN 10034 (I and H sections) or EN 10279 (channels). For purchasing, invoicing by weight or checking deliveries, use the producer's stated mass.
Typical uses
Beams of this shape are used as floor and roof beams, lintels, crane girders and frame members, where bending about the strong axis governs.
Frequently asked questions
What is the weight of IPE 180 per metre?
IPE 180 weighs 18.8 kg/m, which is 12.63 lb/ft.
How much does a 6 m or 12 m length of IPE 180 weigh?
A 6 m length weighs about 112.8 kg and a 12 m length about 225.6 kg.
What is the equivalent of IPE 180 in other standards?
By depth and weight the closest match is ISMB 175 (19.5 kg/m, 175 mm deep). Check section properties before substituting one for the other.
Source: EN 10365. Values are nominal; verify with the producer before ordering.