Metal weight

Rectangular tube 100×40×4 mm weight

Steel Rectangular tube 100×40×4, cold-formed (EN 10219), weighs 7.97 kg/m. A 6 m bar weighs 47.8 kg and a 12 m bar 95.6 kg. The hot-finished version (EN 10210) has tighter corners and weighs 8.15 kg/m. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre7.97kg/m
6 m bar47.8kg
12 m bar95.6kg
Metres per tonne125.5m
Painting surface0.266m²/m
100 × 40 × 4 mm
Width × height
100 × 40 mm
Wall thickness
4 mm
Cold-formed, EN 10219
7.97 kg/m
Hot-finished, EN 10210
8.15 kg/m
Section area
10.15 cm²
Outer surface
0.266 m²/m
Outer surface
0.266 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m7.97 kg8.05 kg2.74 kg
2 m15.93 kg16.09 kg5.48 kg
3 m23.90 kg24.14 kg8.22 kg
4 m31.86 kg32.19 kg10.96 kg
5 m39.83 kg40.24 kg13.70 kg
6 m47.80 kg48.28 kg16.44 kg
8 m63.73 kg64.38 kg21.92 kg
10 m79.66 kg80.47 kg27.40 kg
12 m95.59 kg96.57 kg32.88 kg

How it was calculated

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

kg/m = section area (mm²) × 0.00785, with the area calculated from width, height and thickness and the corners rounded per EN 10219 (cold-formed) or EN 10210 (hot-finished, outer radius 1.5t).

For Rectangular tube 100×40×4, the section area is 10.15 cm², so 1 metre = 10.15 × 0.785 = 7.966 kg.

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

Other rectangular tube sizes

Rectangular tube 100×40×2Rectangular tube 100×40×2.5Rectangular tube 100×40×3Rectangular tube 100×40×4Rectangular tube 100×40×5Rectangular tube 100×40×6Rectangular tube 40×30×4Rectangular tube 50×25×4Rectangular tube 50×30×4Rectangular tube 60×30×4Rectangular tube 60×40×4Rectangular tube 70×30×4Rectangular tube 70×40×4Rectangular tube 70×50×4Rectangular tube 80×40×4Rectangular tube 80×60×4Rectangular tube 100×50×4Rectangular tube 100×60×4Rectangular tube 100×80×4Rectangular tube 120×60×4Rectangular tube 120×80×4Rectangular tube 140×80×4Rectangular tube 150×100×4Rectangular tube 160×80×4Full table →

Working out a whole order?

Add Rectangular tube 100×40×4 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 Rectangular tube 100×40×4 weigh?

One metre of steel Rectangular tube 100×40×4 weighs 7.97 kg.

How much does a 6 m bar of Rectangular tube 100×40×4 weigh?

A 6 m bar weighs 47.8 kg and a 12 m bar 95.6 kg.

How many metres of Rectangular tube 100×40×4 are in one tonne?

One tonne contains about 125.5 metres.