Metal weight

Round tube 101.6×12.5 mm weight

Steel Round tube Ø101.6×12.5 weighs 27.47 kg/m. A 6 m bar weighs 164.8 kg and a 12 m bar 329.6 kg. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre27.47kg/m
6 m bar164.8kg
12 m bar329.6kg
Metres per tonne36.4m
Painting surface0.319m²/m
Ø 101.6 × 12.5 mm
Outside diameter
101.6 mm
Wall thickness
12.5 mm
Section area
34.99 cm²
Inside diameter
76.6 mm
Inch (approx.)
3 1/2″
Outer surface
0.319 m²/m
Internal volume
4.61 l/m
Outer surface
0.319 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m27.47 kg27.75 kg9.45 kg
2 m54.93 kg55.49 kg18.89 kg
3 m82.40 kg83.24 kg28.34 kg
4 m109.87 kg110.99 kg37.79 kg
5 m137.33 kg138.73 kg47.24 kg
6 m164.80 kg166.48 kg56.68 kg
8 m219.73 kg221.97 kg75.58 kg
10 m274.67 kg277.47 kg94.47 kg
12 m329.60 kg332.96 kg113.37 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 Ø101.6×12.5, the section area is 34.99 cm², so 1 metre = 34.99 × 0.785 = 27.467 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 Ø101.6×2Round tube Ø101.6×2.3Round tube Ø101.6×2.6Round tube Ø101.6×2.9Round tube Ø101.6×3.2Round tube Ø101.6×3.6Round tube Ø101.6×4Round tube Ø101.6×4.5Round tube Ø101.6×5Round tube Ø101.6×5.6Round tube Ø101.6×6.3Round tube Ø101.6×7.1Round tube Ø101.6×8Round tube Ø101.6×10Round tube Ø101.6×12.5Round tube Ø88.9×12.5Round tube Ø108×12.5Round tube Ø114.3×12.5Round tube Ø133×12.5Round tube Ø139.7×12.5Round tube Ø159×12.5Round tube Ø168.3×12.5Round tube Ø193.7×12.5Round tube Ø219.1×12.5Full table →

Working out a whole order?

Add Round tube Ø101.6×12.5 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 Round tube Ø101.6×12.5 weigh?

One metre of steel Round tube Ø101.6×12.5 weighs 27.47 kg.

How much does a 6 m bar of Round tube Ø101.6×12.5 weigh?

A 6 m bar weighs 164.8 kg and a 12 m bar 329.6 kg.

How many metres of Round tube Ø101.6×12.5 are in one tonne?

One tonne contains about 36.4 metres.