Weight per metre6.71kg/m
6 m bar40.3kg
12 m bar80.5kg
Metres per tonne149.0m
Painting surface0.226m²/m
- Width × height
- 80 × 40 mm
- Wall thickness
- 4 mm
- Cold-formed, EN 10219
- 6.71 kg/m
- Hot-finished, EN 10210
- 6.90 kg/m
- Section area
- 8.55 cm²
- Outer surface
- 0.226 m²/m
- Outer surface
- 0.226 m²/m
Weight by length
| Length | Steel | Stainless 304 | Aluminium |
|---|---|---|---|
| 1 m | 6.71 kg | 6.78 kg | 2.31 kg |
| 2 m | 13.42 kg | 13.56 kg | 4.62 kg |
| 3 m | 20.13 kg | 20.34 kg | 6.92 kg |
| 4 m | 26.84 kg | 27.11 kg | 9.23 kg |
| 5 m | 33.55 kg | 33.89 kg | 11.54 kg |
| 6 m | 40.26 kg | 40.67 kg | 13.85 kg |
| 8 m | 53.68 kg | 54.23 kg | 18.46 kg |
| 10 m | 67.10 kg | 67.79 kg | 23.08 kg |
| 12 m | 80.52 kg | 81.34 kg | 27.70 kg |
How it was calculated
The weight is the section area multiplied by the material density:
kg/m = section area (mm²) × 0.00785, with the area calculated from width, height and thickness and the corners rounded per EN 10219 (cold-formed) or EN 10210 (hot-finished, outer radius 1.5t).For Rectangular tube 80×40×4, the section area is 8.55 cm², so 1 metre = 8.55 × 0.785 = 6.710 kg.
The real weight can differ by a few percent because of rolling tolerances. For other materials or lengths use the calculator.
Other rectangular tube sizes
Rectangular tube 80×40×1.5Rectangular tube 80×40×2Rectangular tube 80×40×2.5Rectangular tube 80×40×3Rectangular tube 80×40×4Rectangular tube 80×40×5Rectangular tube 80×40×6Rectangular tube 40×30×4Rectangular tube 50×25×4Rectangular tube 50×30×4Rectangular tube 60×30×4Rectangular tube 60×40×4Rectangular tube 70×30×4Rectangular tube 70×40×4Rectangular tube 70×50×4Rectangular tube 80×60×4Rectangular tube 100×40×4Rectangular tube 100×50×4Rectangular tube 100×60×4Rectangular tube 100×80×4Rectangular tube 120×60×4Rectangular tube 120×80×4Rectangular tube 140×80×4Rectangular tube 150×100×4Full table →
Working out a whole order?
Add Rectangular tube 80×40×4 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 Rectangular tube 80×40×4 weigh?
One metre of steel Rectangular tube 80×40×4 weighs 6.71 kg.
How much does a 6 m bar of Rectangular tube 80×40×4 weigh?
A 6 m bar weighs 40.3 kg and a 12 m bar 80.5 kg.
How many metres of Rectangular tube 80×40×4 are in one tonne?
One tonne contains about 149.0 metres.