Weight per metre6.08kg/m
6 m bar36.5kg
12 m bar73.0kg
Metres per tonne164.4m
Painting surface0.206m²/m
- Width × height
- 70 × 40 mm
- Wall thickness
- 4 mm
- Cold-formed, EN 10219
- 6.08 kg/m
- Hot-finished, EN 10210
- 6.27 kg/m
- Section area
- 7.75 cm²
- Outer surface
- 0.206 m²/m
- Outer surface
- 0.206 m²/m
Weight by length
| Length | Steel | Stainless 304 | Aluminium |
|---|---|---|---|
| 1 m | 6.08 kg | 6.14 kg | 2.09 kg |
| 2 m | 12.16 kg | 12.29 kg | 4.18 kg |
| 3 m | 18.25 kg | 18.43 kg | 6.28 kg |
| 4 m | 24.33 kg | 24.58 kg | 8.37 kg |
| 5 m | 30.41 kg | 30.72 kg | 10.46 kg |
| 6 m | 36.49 kg | 36.86 kg | 12.55 kg |
| 8 m | 48.66 kg | 49.15 kg | 16.74 kg |
| 10 m | 60.82 kg | 61.44 kg | 20.92 kg |
| 12 m | 72.99 kg | 73.73 kg | 25.10 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 70×40×4, the section area is 7.75 cm², so 1 metre = 7.75 × 0.785 = 6.082 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 70×40×1.2Rectangular tube 70×40×1.5Rectangular tube 70×40×2Rectangular tube 70×40×2.5Rectangular tube 70×40×3Rectangular tube 70×40×4Rectangular tube 70×40×5Rectangular tube 70×40×6Rectangular 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 70×50×4Rectangular tube 80×40×4Rectangular 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 140×80×4Full table →
Working out a whole order?
Add Rectangular tube 70×40×4 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 70×40×4 weigh?
One metre of steel Rectangular tube 70×40×4 weighs 6.08 kg.
How much does a 6 m bar of Rectangular tube 70×40×4 weigh?
A 6 m bar weighs 36.5 kg and a 12 m bar 73.0 kg.
How many metres of Rectangular tube 70×40×4 are in one tonne?
One tonne contains about 164.4 metres.