Metal weight

Flat bar 80×8 mm weight

Steel Flat bar 80×8 weighs 5.02 kg/m. A 6 m bar weighs 30.1 kg and a 12 m bar 60.3 kg. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre5.02kg/m
6 m bar30.1kg
12 m bar60.3kg
Metres per tonne199.0m
Painting surface0.176m²/m
80 × 8 mm
Width × thickness
80 × 8 mm
Section area
6.40 cm²
Outer surface
0.176 m²/m
Outer surface
0.176 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m5.02 kg5.08 kg1.73 kg
2 m10.05 kg10.15 kg3.46 kg
3 m15.07 kg15.23 kg5.18 kg
4 m20.10 kg20.30 kg6.91 kg
5 m25.12 kg25.38 kg8.64 kg
6 m30.14 kg30.45 kg10.37 kg
8 m40.19 kg40.60 kg13.82 kg
10 m50.24 kg50.75 kg17.28 kg
12 m60.29 kg60.90 kg20.74 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 80×8, the section area is 6.40 cm², so 1 metre = 6.40 × 0.785 = 5.024 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 80×3Flat bar 80×4Flat bar 80×5Flat bar 80×6Flat bar 80×8Flat bar 80×10Flat bar 80×12Flat bar 80×15Flat bar 80×20Flat bar 80×25Flat bar 80×30Flat bar 20×8Flat bar 25×8Flat bar 30×8Flat bar 35×8Flat bar 40×8Flat bar 45×8Flat bar 50×8Flat bar 60×8Flat bar 70×8Flat bar 90×8Flat bar 100×8Flat bar 120×8Flat bar 150×8Full table →

Working out a whole order?

Add Flat bar 80×8 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 80×8 weigh?

One metre of steel Flat bar 80×8 weighs 5.02 kg.

How much does a 6 m bar of Flat bar 80×8 weigh?

A 6 m bar weighs 30.1 kg and a 12 m bar 60.3 kg.

How many metres of Flat bar 80×8 are in one tonne?

One tonne contains about 199.0 metres.