Weight per metre2.51kg/m
6 m bar15.1kg
12 m bar30.1kg
Metres per tonne398.1m
Painting surface0.096m²/m
- Width × thickness
- 40 × 8 mm
- Section area
- 3.20 cm²
- Outer surface
- 0.096 m²/m
- Outer surface
- 0.096 m²/m
Weight by length
| Length | Steel | Stainless 304 | Aluminium |
|---|---|---|---|
| 1 m | 2.51 kg | 2.54 kg | 0.86 kg |
| 2 m | 5.02 kg | 5.08 kg | 1.73 kg |
| 3 m | 7.54 kg | 7.61 kg | 2.59 kg |
| 4 m | 10.05 kg | 10.15 kg | 3.46 kg |
| 5 m | 12.56 kg | 12.69 kg | 4.32 kg |
| 6 m | 15.07 kg | 15.23 kg | 5.18 kg |
| 8 m | 20.10 kg | 20.30 kg | 6.91 kg |
| 10 m | 25.12 kg | 25.38 kg | 8.64 kg |
| 12 m | 30.14 kg | 30.45 kg | 10.37 kg |
How it was calculated
The weight is the section area multiplied by the material density:
kg/m = width × thickness × 0.00785, in mm.For Flat bar 40×8, the section area is 3.20 cm², so 1 metre = 3.20 × 0.785 = 2.512 kg.
The real weight can differ by a few percent because of rolling tolerances. For other materials or lengths use the calculator.
Other flat bar sizes
Flat bar 40×3Flat bar 40×4Flat bar 40×5Flat bar 40×6Flat bar 40×8Flat bar 40×10Flat bar 40×12Flat bar 40×15Flat bar 20×8Flat bar 25×8Flat bar 30×8Flat bar 35×8Flat bar 45×8Flat bar 50×8Flat bar 60×8Flat bar 70×8Flat bar 80×8Flat bar 90×8Flat bar 100×8Flat bar 120×8Flat bar 150×8Flat bar 200×8Full table →
Working out a whole order?
Add Flat bar 40×8 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 Flat bar 40×8 weigh?
One metre of steel Flat bar 40×8 weighs 2.51 kg.
How much does a 6 m bar of Flat bar 40×8 weigh?
A 6 m bar weighs 15.1 kg and a 12 m bar 30.1 kg.
How many metres of Flat bar 40×8 are in one tonne?
One tonne contains about 398.1 metres.