Metal weight

Flat bar 15×3 mm weight

Steel Flat bar 15×3 weighs 0.35 kg/m. A 6 m bar weighs 2.1 kg and a 12 m bar 4.2 kg. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre0.35kg/m
6 m bar2.1kg
12 m bar4.2kg
Metres per tonne2,830.9m
Painting surface0.036m²/m
15 × 3 mm
Width × thickness
15 × 3 mm
Section area
0.45 cm²
Outer surface
0.036 m²/m
Outer surface
0.036 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m0.35 kg0.36 kg0.12 kg
2 m0.71 kg0.71 kg0.24 kg
3 m1.06 kg1.07 kg0.36 kg
4 m1.41 kg1.43 kg0.49 kg
5 m1.77 kg1.78 kg0.61 kg
6 m2.12 kg2.14 kg0.73 kg
8 m2.83 kg2.85 kg0.97 kg
10 m3.53 kg3.57 kg1.22 kg
12 m4.24 kg4.28 kg1.46 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 15×3, the section area is 0.45 cm², so 1 metre = 0.45 × 0.785 = 0.353 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 15×3Flat bar 15×4Flat bar 15×5Flat bar 15×6Flat bar 12×3Flat bar 16×3Flat bar 20×3Flat bar 25×3Flat bar 30×3Flat bar 35×3Flat bar 40×3Flat bar 45×3Flat bar 50×3Flat bar 60×3Flat bar 70×3Flat bar 80×3Flat bar 90×3Flat bar 100×3Flat bar 120×3Full table →

Working out a whole order?

Add Flat bar 15×3 to the materials list and see the total weight and cost of the order, together with the other products.

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Frequently asked questions

How much does one metre of Flat bar 15×3 weigh?

One metre of steel Flat bar 15×3 weighs 0.35 kg.

How much does a 6 m bar of Flat bar 15×3 weigh?

A 6 m bar weighs 2.1 kg and a 12 m bar 4.2 kg.

How many metres of Flat bar 15×3 are in one tonne?

One tonne contains about 2,830.9 metres.