Metal weight

Round tube 168.3×4.5 mm weight

Steel Round tube Ø168.3×4.5 weighs 18.18 kg/m. A 6 m bar weighs 109.1 kg and a 12 m bar 218.1 kg. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre18.18kg/m
6 m bar109.1kg
12 m bar218.1kg
Metres per tonne55.0m
Painting surface0.529m²/m
Ø 168.3 × 4.5 mm
Outside diameter
168.3 mm
Wall thickness
4.5 mm
Section area
23.16 cm²
Inside diameter
159.3 mm
Inch (approx.)
6″
Outer surface
0.529 m²/m
Internal volume
19.93 l/m
Outer surface
0.529 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m18.18 kg18.36 kg6.25 kg
2 m36.36 kg36.73 kg12.50 kg
3 m54.53 kg55.09 kg18.76 kg
4 m72.71 kg73.45 kg25.01 kg
5 m90.89 kg91.82 kg31.26 kg
6 m109.07 kg110.18 kg37.51 kg
8 m145.42 kg146.91 kg50.02 kg
10 m181.78 kg183.63 kg62.52 kg
12 m218.14 kg220.36 kg75.03 kg

How it was calculated

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

kg/m = (D − t) × t × 0.02466, where D is the outside diameter and t the wall thickness, in mm.

For Round tube Ø168.3×4.5, the section area is 23.16 cm², so 1 metre = 23.16 × 0.785 = 18.178 kg.

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

Other round tube sizes

Round tube Ø168.3×3.2Round tube Ø168.3×3.6Round tube Ø168.3×4Round tube Ø168.3×4.5Round tube Ø168.3×5Round tube Ø168.3×5.6Round tube Ø168.3×6.3Round tube Ø168.3×7.1Round tube Ø168.3×8Round tube Ø168.3×10Round tube Ø168.3×12.5Round tube Ø33.7×4.5Round tube Ø42.4×4.5Round tube Ø48.3×4.5Round tube Ø60.3×4.5Round tube Ø76.1×4.5Round tube Ø88.9×4.5Round tube Ø101.6×4.5Round tube Ø108×4.5Round tube Ø114.3×4.5Round tube Ø133×4.5Round tube Ø139.7×4.5Round tube Ø159×4.5Round tube Ø193.7×4.5Full table →

Working out a whole order?

Add Round tube Ø168.3×4.5 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 Round tube Ø168.3×4.5 weigh?

One metre of steel Round tube Ø168.3×4.5 weighs 18.18 kg.

How much does a 6 m bar of Round tube Ø168.3×4.5 weigh?

A 6 m bar weighs 109.1 kg and a 12 m bar 218.1 kg.

How many metres of Round tube Ø168.3×4.5 are in one tonne?

One tonne contains about 55.0 metres.