Weight per metre4.20kg/m
6 m bar25.2kg
12 m bar50.4kg
Metres per tonne238.2m
Painting surface0.146m²/m
- Side
- 40 mm
- Wall thickness
- 4 mm
- Cold-formed, EN 10219
- 4.20 kg/m
- Hot-finished, EN 10210
- 4.39 kg/m
- Section area
- 5.35 cm²
- Outer surface
- 0.146 m²/m
- Outer surface
- 0.146 m²/m
Weight by length
| Length | Steel | Stainless 304 | Aluminium |
|---|---|---|---|
| 1 m | 4.20 kg | 4.24 kg | 1.44 kg |
| 2 m | 8.40 kg | 8.48 kg | 2.89 kg |
| 3 m | 12.59 kg | 12.72 kg | 4.33 kg |
| 4 m | 16.79 kg | 16.96 kg | 5.78 kg |
| 5 m | 20.99 kg | 21.20 kg | 7.22 kg |
| 6 m | 25.19 kg | 25.45 kg | 8.66 kg |
| 8 m | 33.59 kg | 33.93 kg | 11.55 kg |
| 10 m | 41.98 kg | 42.41 kg | 14.44 kg |
| 12 m | 50.38 kg | 50.89 kg | 17.33 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 40×40×4, the section area is 5.35 cm², so 1 metre = 5.35 × 0.785 = 4.198 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 40×40×1Square tube 40×40×1.2Square tube 40×40×1.5Square tube 40×40×2Square tube 40×40×2.5Square tube 40×40×3Square tube 40×40×4Square tube 40×40×5Square tube 30×30×4Square tube 35×35×4Square 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 180×180×4Square tube 200×200×4Full table →
Working out a whole order?
Add Square tube 40×40×4 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 40×40×4 weigh?
One metre of steel Square tube 40×40×4 weighs 4.20 kg.
How much does a 6 m bar of Square tube 40×40×4 weigh?
A 6 m bar weighs 25.2 kg and a 12 m bar 50.4 kg.
How many metres of Square tube 40×40×4 are in one tonne?
One tonne contains about 238.2 metres.