naval brass rectangular tube weight calculator

Enter the dimensions of a naval brass rectangular tube and this works out its volume and weight. C464, tin-bearing brass for marine service.

Outside width

Outside height

Wall thickness

Length

Number of pieces

Total weight

5.752 44kg

= Exact naval brass rectangular tube weight Show in

Weight of one rectangular tube: 5.752 44
Volume of one piece: 684
Weight per metre of length: 5.752 44 kg/m
Density used: 8410 kg/m3

Show the working

Outside width = 80
Outside height = 40
Wall thickness = 3
Length = 1000
Number of pieces = 1
volume_mm3 = (80*40 - (80 - 2*3)*(40 - 2*3)) * 1000 = 684 000
Volume of one piece = 684 000 / 1000 = 684
Density used = 8410 = 8410
Weight of one rectangular tube = 684 000 * 8410 / 1e9 = 5.752 44
Total weight = 5.752 44 * 1 = 5.752 44
Weight per metre of length = 684 000 / 1000 * 1000 * 8410 / 1e9 = 5.752 44

Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.

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The formula

Volume = (outer area - inner area) x length, ignoring the corner radii
Weight = volume x density, with density = 8410 kg/m3
One cubic millimetre of a material at 1000 kg/m3 weighs exactly one milligram, so the millimetre-to-kilogram step is a shift of the decimal point rather than a rounded factor.

C464, tin-bearing brass for marine service.

Dimensions are nominal. Mill tolerances on thickness, and the corner radii on formed sections, both move the real weight by a percent or two.

Every field takes inches or feet as readily as millimetres: change the unit next to it and the conversion is done exactly before the arithmetic starts.

Frequently asked

What is the density of naval brass?

8410 kg/m3, which is 8.410 g/cm3. C464, tin-bearing brass for marine service.

How do you calculate the weight of a naval brass rectangular tube?

Volume = (outer area - inner area) x length, ignoring the corner radii. Multiply the volume by the density of naval brass, 8410 kg/m3, taking care that both are in the same unit system.

Can I enter dimensions in inches?

Yes. Each dimension field has its own unit selector, and inch, foot, millimetre, centimetre and metre entries are all converted exactly before anything is multiplied.

Where the numbers come from

Densities are nominal room-temperature values for the grade named, drawn from the usual mill and handbook figures.