Metal weight

Flat bar 30×8 mm weight

Steel Flat bar 30×8 weighs 1.88 kg/m. A 6 m bar weighs 11.3 kg and a 12 m bar 22.6 kg. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre1.88kg/m
6 m bar11.3kg
12 m bar22.6kg
Metres per tonne530.8m
Painting surface0.076m²/m
30 × 8 mm
Width × thickness
30 × 8 mm
Section area
2.40 cm²
Outer surface
0.076 m²/m
Outer surface
0.076 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m1.88 kg1.90 kg0.65 kg
2 m3.77 kg3.81 kg1.30 kg
3 m5.65 kg5.71 kg1.94 kg
4 m7.54 kg7.61 kg2.59 kg
5 m9.42 kg9.52 kg3.24 kg
6 m11.30 kg11.42 kg3.89 kg
8 m15.07 kg15.23 kg5.18 kg
10 m18.84 kg19.03 kg6.48 kg
12 m22.61 kg22.84 kg7.78 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 30×8, the section area is 2.40 cm², so 1 metre = 2.40 × 0.785 = 1.884 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 20×8Flat bar 25×8Flat bar 35×8Flat bar 40×8Flat 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 30×8 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 30×8 weigh?

One metre of steel Flat bar 30×8 weighs 1.88 kg.

How much does a 6 m bar of Flat bar 30×8 weigh?

A 6 m bar weighs 11.3 kg and a 12 m bar 22.6 kg.

How many metres of Flat bar 30×8 are in one tonne?

One tonne contains about 530.8 metres.