Metal weight

Square tube 120×120×6 mm weight

Steel Square tube 120×120×6, cold-formed (EN 10219), weighs 20.75 kg/m. A 6 m bar weighs 124.5 kg and a 12 m bar 249.0 kg. The hot-finished version (EN 10210) has tighter corners and weighs 21.17 kg/m. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre20.75kg/m
6 m bar124.5kg
12 m bar249.0kg
Metres per tonne48.2m
Painting surface0.459m²/m
120 × 120 × 6 mm
Side
120 mm
Wall thickness
6 mm
Cold-formed, EN 10219
20.75 kg/m
Hot-finished, EN 10210
21.17 kg/m
Section area
26.43 cm²
Outer surface
0.459 m²/m
Outer surface
0.459 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m20.75 kg20.96 kg7.14 kg
2 m41.50 kg41.92 kg14.27 kg
3 m62.25 kg62.88 kg21.41 kg
4 m83.00 kg83.85 kg28.55 kg
5 m103.75 kg104.81 kg35.68 kg
6 m124.50 kg125.77 kg42.82 kg
8 m166.00 kg167.69 kg57.10 kg
10 m207.50 kg209.61 kg71.37 kg
12 m249.00 kg251.54 kg85.64 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 120×120×6, the section area is 26.43 cm², so 1 metre = 26.43 × 0.785 = 20.750 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 120×120×2Square tube 120×120×2.5Square tube 120×120×3Square tube 120×120×4Square tube 120×120×5Square tube 120×120×6Square tube 120×120×8Square tube 120×120×10Square tube 120×120×12.5Square tube 45×45×6Square tube 50×50×6Square tube 60×60×6Square tube 70×70×6Square tube 80×80×6Square tube 90×90×6Square tube 100×100×6Square tube 140×140×6Square tube 150×150×6Square tube 160×160×6Square tube 180×180×6Square tube 200×200×6Square tube 250×250×6Square tube 300×300×6Full table →

Working out a whole order?

Add Square tube 120×120×6 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 120×120×6 weigh?

One metre of steel Square tube 120×120×6 weighs 20.75 kg.

How much does a 6 m bar of Square tube 120×120×6 weigh?

A 6 m bar weighs 124.5 kg and a 12 m bar 249.0 kg.

How many metres of Square tube 120×120×6 are in one tonne?

One tonne contains about 48.2 metres.