Metal weight

Round tube 168.3×4 mm weight

Steel Round tube Ø168.3×4 weighs 16.21 kg/m. A 6 m bar weighs 97.2 kg and a 12 m bar 194.5 kg. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre16.21kg/m
6 m bar97.2kg
12 m bar194.5kg
Metres per tonne61.7m
Painting surface0.529m²/m
Ø 168.3 × 4 mm
Outside diameter
168.3 mm
Wall thickness
4 mm
Section area
20.65 cm²
Inside diameter
160.3 mm
Inch (approx.)
6″
Outer surface
0.529 m²/m
Internal volume
20.18 l/m
Outer surface
0.529 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m16.21 kg16.37 kg5.57 kg
2 m32.42 kg32.75 kg11.15 kg
3 m48.62 kg49.12 kg16.72 kg
4 m64.83 kg65.49 kg22.30 kg
5 m81.04 kg81.86 kg27.87 kg
6 m97.25 kg98.24 kg33.45 kg
8 m129.66 kg130.98 kg44.60 kg
10 m162.08 kg163.73 kg55.75 kg
12 m194.49 kg196.47 kg66.89 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, the section area is 20.65 cm², so 1 metre = 20.65 × 0.785 = 16.208 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 Ø33.7×4Round tube Ø42.4×4Round tube Ø48.3×4Round tube Ø60.3×4Round tube Ø76.1×4Round tube Ø88.9×4Round tube Ø101.6×4Round tube Ø108×4Round tube Ø114.3×4Round tube Ø133×4Round tube Ø139.7×4Round tube Ø159×4Round tube Ø193.7×4Full table →

Working out a whole order?

Add Round tube Ø168.3×4 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 Round tube Ø168.3×4 weigh?

One metre of steel Round tube Ø168.3×4 weighs 16.21 kg.

How much does a 6 m bar of Round tube Ø168.3×4 weigh?

A 6 m bar weighs 97.2 kg and a 12 m bar 194.5 kg.

How many metres of Round tube Ø168.3×4 are in one tonne?

One tonne contains about 61.7 metres.