Weight per metre21.78kg/m
6 m bar130.7kg
12 m bar261.4kg
Metres per tonne45.9m
Painting surface0.706m²/m
- Side
- 180 mm
- Wall thickness
- 4 mm
- Cold-formed, EN 10219
- 21.78 kg/m
- Hot-finished, EN 10210
- 21.97 kg/m
- Section area
- 27.75 cm²
- Outer surface
- 0.706 m²/m
- Outer surface
- 0.706 m²/m
Weight by length
| Length | Steel | Stainless 304 | Aluminium |
|---|---|---|---|
| 1 m | 21.78 kg | 22.00 kg | 7.49 kg |
| 2 m | 43.56 kg | 44.01 kg | 14.98 kg |
| 3 m | 65.35 kg | 66.01 kg | 22.48 kg |
| 4 m | 87.13 kg | 88.02 kg | 29.97 kg |
| 5 m | 108.91 kg | 110.02 kg | 37.46 kg |
| 6 m | 130.69 kg | 132.02 kg | 44.95 kg |
| 8 m | 174.26 kg | 176.03 kg | 59.94 kg |
| 10 m | 217.82 kg | 220.04 kg | 74.92 kg |
| 12 m | 261.39 kg | 264.05 kg | 89.90 kg |
How it was calculated
The weight is the section area multiplied by the material density:
kg/m = section area (mm²) × 0.00785. The area comes from side and thickness, minus the rounded corners: for cold-formed tube (EN 10219) the outer radius is 2t up to 6 mm wall, 2.5t up to 10 mm and 3t above; for hot-finished tube (EN 10210) the outer radius is 1.5t.For Square tube 180×180×4, the section area is 27.75 cm², so 1 metre = 27.75 × 0.785 = 21.782 kg.
The real weight can differ by a few percent because of rolling tolerances. For other materials or lengths use the calculator.
Other square tube sizes
Square tube 180×180×3Square tube 180×180×4Square tube 180×180×5Square tube 180×180×6Square tube 180×180×8Square tube 180×180×10Square tube 180×180×12.5Square tube 30×30×4Square tube 35×35×4Square tube 40×40×4Square tube 45×45×4Square tube 50×50×4Square tube 60×60×4Square tube 70×70×4Square tube 80×80×4Square tube 90×90×4Square tube 100×100×4Square tube 120×120×4Square tube 140×140×4Square tube 150×150×4Square tube 160×160×4Square tube 200×200×4Full table →
Working out a whole order?
Add Square tube 180×180×4 to the materials list and see the total weight and cost of the order, together with the other products.
Frequently asked questions
How much does one metre of Square tube 180×180×4 weigh?
One metre of steel Square tube 180×180×4 weighs 21.78 kg.
How much does a 6 m bar of Square tube 180×180×4 weigh?
A 6 m bar weighs 130.7 kg and a 12 m bar 261.4 kg.
How many metres of Square tube 180×180×4 are in one tonne?
One tonne contains about 45.9 metres.