Weight per metre6.13kg/m
6 m bar36.8kg
12 m bar73.6kg
Metres per tonne163.1m
Painting surface0.270m²/m
- Side
- 70 mm
- Wall thickness
- 3 mm
- Cold-formed, EN 10219
- 6.13 kg/m
- Hot-finished, EN 10210
- 6.24 kg/m
- Section area
- 7.81 cm²
- Outer surface
- 0.270 m²/m
- Outer surface
- 0.270 m²/m
Weight by length
| Length | Steel | Stainless 304 | Aluminium |
|---|---|---|---|
| 1 m | 6.13 kg | 6.19 kg | 2.11 kg |
| 2 m | 12.26 kg | 12.38 kg | 4.22 kg |
| 3 m | 18.39 kg | 18.58 kg | 6.32 kg |
| 4 m | 24.52 kg | 24.77 kg | 8.43 kg |
| 5 m | 30.65 kg | 30.96 kg | 10.54 kg |
| 6 m | 36.78 kg | 37.15 kg | 12.65 kg |
| 8 m | 49.04 kg | 49.54 kg | 16.87 kg |
| 10 m | 61.29 kg | 61.92 kg | 21.08 kg |
| 12 m | 73.55 kg | 74.30 kg | 25.30 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 70×70×3, the section area is 7.81 cm², so 1 metre = 7.81 × 0.785 = 6.129 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 70×70×1.2Square tube 70×70×1.5Square tube 70×70×2Square tube 70×70×2.5Square tube 70×70×3Square tube 70×70×4Square tube 70×70×5Square tube 70×70×6Square tube 70×70×8Square tube 70×70×10Square tube 25×25×3Square tube 30×30×3Square tube 35×35×3Square tube 40×40×3Square tube 45×45×3Square tube 50×50×3Square tube 60×60×3Square tube 80×80×3Square tube 90×90×3Square tube 100×100×3Square tube 120×120×3Square tube 140×140×3Square tube 150×150×3Square tube 160×160×3Full table →
Working out a whole order?
Add Square tube 70×70×3 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 70×70×3 weigh?
One metre of steel Square tube 70×70×3 weighs 6.13 kg.
How much does a 6 m bar of Square tube 70×70×3 weigh?
A 6 m bar weighs 36.8 kg and a 12 m bar 73.6 kg.
How many metres of Square tube 70×70×3 are in one tonne?
One tonne contains about 163.1 metres.