Weight per metre0.94kg/m
6 m bar5.7kg
12 m bar11.3kg
Metres per tonne1,061.6m
Painting surface0.068m²/m
- Width × thickness
- 30 × 4 mm
- Section area
- 1.20 cm²
- Outer surface
- 0.068 m²/m
- Outer surface
- 0.068 m²/m
Weight by length
| Length | Steel | Stainless 304 | Aluminium |
|---|---|---|---|
| 1 m | 0.94 kg | 0.95 kg | 0.32 kg |
| 2 m | 1.88 kg | 1.90 kg | 0.65 kg |
| 3 m | 2.83 kg | 2.85 kg | 0.97 kg |
| 4 m | 3.77 kg | 3.81 kg | 1.30 kg |
| 5 m | 4.71 kg | 4.76 kg | 1.62 kg |
| 6 m | 5.65 kg | 5.71 kg | 1.94 kg |
| 8 m | 7.54 kg | 7.61 kg | 2.59 kg |
| 10 m | 9.42 kg | 9.52 kg | 3.24 kg |
| 12 m | 11.30 kg | 11.42 kg | 3.89 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 30×4, the section area is 1.20 cm², so 1 metre = 1.20 × 0.785 = 0.942 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 30×3Flat bar 30×4Flat bar 30×5Flat bar 30×6Flat bar 30×8Flat bar 30×10Flat bar 30×12Flat bar 12×4Flat bar 15×4Flat bar 16×4Flat bar 20×4Flat bar 25×4Flat bar 35×4Flat bar 40×4Flat bar 45×4Flat bar 50×4Flat bar 60×4Flat bar 70×4Flat bar 80×4Flat bar 90×4Flat bar 100×4Flat bar 120×4Flat bar 150×4Full table →
Working out a whole order?
Add Flat bar 30×4 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 Flat bar 30×4 weigh?
One metre of steel Flat bar 30×4 weighs 0.94 kg.
How much does a 6 m bar of Flat bar 30×4 weigh?
A 6 m bar weighs 5.7 kg and a 12 m bar 11.3 kg.
How many metres of Flat bar 30×4 are in one tonne?
One tonne contains about 1,061.6 metres.