Weight per metre10.84kg/m
6 m bar65.0kg
12 m bar130.1kg
Metres per tonne92.3m
Painting surface0.470m²/m
- Side
- 120 mm
- Wall thickness
- 3 mm
- Cold-formed, EN 10219
- 10.84 kg/m
- Hot-finished, EN 10210
- 10.95 kg/m
- Section area
- 13.81 cm²
- Outer surface
- 0.470 m²/m
- Outer surface
- 0.470 m²/m
Weight by length
| Length | Steel | Stainless 304 | Aluminium |
|---|---|---|---|
| 1 m | 10.84 kg | 10.95 kg | 3.73 kg |
| 2 m | 21.68 kg | 21.90 kg | 7.46 kg |
| 3 m | 32.52 kg | 32.85 kg | 11.18 kg |
| 4 m | 43.36 kg | 43.80 kg | 14.91 kg |
| 5 m | 54.20 kg | 54.75 kg | 18.64 kg |
| 6 m | 65.04 kg | 65.70 kg | 22.37 kg |
| 8 m | 86.72 kg | 87.60 kg | 29.83 kg |
| 10 m | 108.39 kg | 109.50 kg | 37.28 kg |
| 12 m | 130.07 kg | 131.40 kg | 44.74 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 120×120×3, the section area is 13.81 cm², so 1 metre = 13.81 × 0.785 = 10.839 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 120×120×2Square tube 120×120×2.5Square tube 120×120×3Square tube 120×120×4Square tube 120×120×5Square tube 120×120×6Square tube 120×120×8Square tube 120×120×10Square tube 120×120×12.5Square 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 70×70×3Square tube 80×80×3Square tube 90×90×3Square tube 100×100×3Square tube 140×140×3Square tube 150×150×3Square tube 160×160×3Square tube 180×180×3Full table →
Working out a whole order?
Add Square tube 120×120×3 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 120×120×3 weigh?
One metre of steel Square tube 120×120×3 weighs 10.84 kg.
How much does a 6 m bar of Square tube 120×120×3 weigh?
A 6 m bar weighs 65.0 kg and a 12 m bar 130.1 kg.
How many metres of Square tube 120×120×3 are in one tonne?
One tonne contains about 92.3 metres.