Metal weight

Flat bar 90×30 mm weight

Steel Flat bar 90×30 weighs 21.20 kg/m. A 6 m bar weighs 127.2 kg and a 12 m bar 254.3 kg. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre21.20kg/m
6 m bar127.2kg
12 m bar254.3kg
Metres per tonne47.2m
Painting surface0.240m²/m
90 × 30 mm
Width × thickness
90 × 30 mm
Section area
27.00 cm²
Outer surface
0.240 m²/m
Outer surface
0.240 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m21.20 kg21.41 kg7.29 kg
2 m42.39 kg42.82 kg14.58 kg
3 m63.59 kg64.23 kg21.87 kg
4 m84.78 kg85.64 kg29.16 kg
5 m105.98 kg107.05 kg36.45 kg
6 m127.17 kg128.47 kg43.74 kg
8 m169.56 kg171.29 kg58.32 kg
10 m211.95 kg214.11 kg72.90 kg
12 m254.34 kg256.93 kg87.48 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 90×30, the section area is 27.00 cm², so 1 metre = 27.00 × 0.785 = 21.195 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 90×3Flat bar 90×4Flat bar 90×5Flat bar 90×6Flat bar 90×8Flat bar 90×10Flat bar 90×12Flat bar 90×15Flat bar 90×20Flat bar 90×25Flat bar 90×30Flat bar 80×30Flat bar 100×30Flat bar 120×30Flat bar 150×30Flat bar 200×30Full table →

Working out a whole order?

Add Flat bar 90×30 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 90×30 weigh?

One metre of steel Flat bar 90×30 weighs 21.20 kg.

How much does a 6 m bar of Flat bar 90×30 weigh?

A 6 m bar weighs 127.2 kg and a 12 m bar 254.3 kg.

How many metres of Flat bar 90×30 are in one tonne?

One tonne contains about 47.2 metres.