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Metal weight

Square tube 180×180×12.5 mm weight

Steel Square tube 180×180×12.5, cold-formed (EN 10219), weighs 60.48 kg/m. A 6 m bar weighs 362.9 kg and a 12 m bar 725.8 kg. The hot-finished version (EN 10210) has tighter corners and weighs 64.43 kg/m. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre60.48kg/m
6 m bar362.9kg
12 m bar725.8kg
Metres per tonne16.5m
Painting surface0.656m²/m
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180 × 180 × 12.5 mm
Side
180 mm
Wall thickness
12.5 mm
Cold-formed, EN 10219
60.48 kg/m
Hot-finished, EN 10210
64.43 kg/m
Section area
77.04 cm²
Outer surface
0.656 m²/m
Outer surface
0.656 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m60.48 kg61.10 kg20.80 kg
2 m120.96 kg122.19 kg41.60 kg
3 m181.44 kg183.29 kg62.41 kg
4 m241.92 kg244.38 kg83.21 kg
5 m302.40 kg305.48 kg104.01 kg
6 m362.88 kg366.57 kg124.81 kg
8 m483.83 kg488.77 kg166.41 kg
10 m604.79 kg610.96 kg208.02 kg
12 m725.75 kg733.15 kg249.62 kg

How it was calculated

The weight is the section area multiplied by the material density:

kg/m = section area (mm²) × 0.00785. The area comes from side and thickness, minus the rounded corners: for cold-formed tube (EN 10219) the outer radius is 2t up to 6 mm wall, 2.5t up to 10 mm and 3t above; for hot-finished tube (EN 10210) the outer radius is 1.5t.

For Square tube 180×180×12.5, the section area is 77.04 cm², so 1 metre = 77.04 × 0.785 = 60.479 kg.

The real weight can differ by a few percent because of rolling tolerances. For other materials or lengths use the calculator.

Other square tube sizes

Square tube 180×180×3Square tube 180×180×4Square tube 180×180×5Square tube 180×180×6Square tube 180×180×8Square tube 180×180×10Square tube 180×180×12.5Square tube 90×90×12.5Square tube 100×100×12.5Square tube 120×120×12.5Square tube 140×140×12.5Square tube 150×150×12.5Square tube 160×160×12.5Square tube 200×200×12.5Square tube 250×250×12.5Square tube 300×300×12.5Full table →

Working out a whole order?

Add Square tube 180×180×12.5 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 Square tube 180×180×12.5 weigh?

One metre of steel Square tube 180×180×12.5 weighs 60.48 kg.

How much does a 6 m bar of Square tube 180×180×12.5 weigh?

A 6 m bar weighs 362.9 kg and a 12 m bar 725.8 kg.

How many metres of Square tube 180×180×12.5 are in one tonne?

One tonne contains about 16.5 metres.