Aluminum tube

How to calculate the weight

The weight of tube is easily calculated. Simply multiply the appropriate alloy density (see chart above) by the calculation shown below for the required part (see worked example below and note that we have used the density of alloy 2014 as the basis for our calculations).

Metric density (g/cm³) x (OD² - (OD - 2xT)²) x L x π/4000 = weight
Example 2.80g/cm³ x (50.0 mm² - (50.0 mm - 2x0.80 mm)²) x 1m x π/4000 = 0.346 kg


Imperial density (lbs/in³) x (OD² - (OD - 2xT)²) x L x π/4 = weight
Example 0.101 lbs/in³ x (1 in² - (1 in - 2x0.028 in)²) x 48in x π/4 = 0.104  lbs


For an accurate calculation it is also important to allow for the extruded/drawn tolerances on diameter and wall thickness as defined by the manufacturing specification – please contact us for details.

The following charts are samples of some of the common diameters and wall thicknesses that are available. Please contact us for details of our full product range and current stock availability.

Metric

Outside
Diameter
Wall
Thickness
Weight
mm mm kg/m
5.0 0.50 0.020
5.0 0.60 0.023
5.0 1.50 0.046
6.0 0.50 0.024
6.0 1.00 0.044
8.0 0.50 0.033
8.0 0.60 0.039
8.0 0.80 0.051
8.0 1.00 0.062
10.0 0.50 0.042
10.0 1.00 0.079
12.0 0.50 0.051
12.0 1.00 0.097
14.0 0.50 0.059
14.0 0.80 0.093
14.0 1.00 0.114
14.0 1.50 0.165
15.0 0.50 0.064
15.0 0.70 0.088
16.0 0.80 0.107
16.0 1.20 0.156
18.0 0.60 0.092
18.0 0.80 0.121
20.0 0.80 0.135
20.0 1.00 0.167
25.0 0.80 0.170
25.0 1.00 0.211
32.0 1.0 0.273
40.0 0.80 0.276
50.0 0.80 0.346
50.0 1.00 0.431
70.0 0.80 0.487
70.0 1.00 0.607
75.0 0.80 0.522
75.0 1.00 0.651
100.0 1.20 1.043

Imperial

Outside
Diameter
Wall
Thickness
Weight
in in lbs/ft kgs/m
0.250 0.028 0.024 0.035
0.250 0.036 0.029 0.044
0.250 0.020 0.018 0.026
0.375 0.028 0.037 0.055
0.375 0.036 0.046 0.069
0.375 0.048 0.060 0.089
0.500 0.028 0.050 0.075
0.500 0.036 0.064 0.095
0.500 0.048 0.083 0.123
0.625 0.028 0.064 0.095
0.625 0.036 0.081 0.120
0.750 0.028 0.077 0.115
0.750 0.036 0.098 0.146
0.750 0.048 0.128 0.191
0.874 0.036 0.115 0.171
1.000 0.028 0.104 0.154
1.000 0.036 0.132 0.197
1.000 0.048 0.174 0.259
1.500 0.028 0.157 0.234
1.500 0.036 0.201 0.299
2.000 0.036 0.269 0.401
2.000 0.048 0.357 0.531
2.000 0.063 0.465 0.692
2.500 0.028 0.264 0.392
2.500 0.036 0.338 0.503
3.000 0.036 0.406 0.605
3.000 0.048 0.540 0.803
3.500 0.036 0.475 0.707
4.000 0.031 0.468 0.697
4.000 0.048 0.722 1.075
4.500 0.031 0.528 0.785
4.500 0.039 0.662 0.986
4.500 0.048 0.814 1.211

Density based on 2.80 g/cm³ (0.101 lbs/in³)


Densities

The density of an alloy is determined by its chemical composition – the purer alloys are lighter and those which have a greater content of other elements are heavier. As can be seen from the chart, the density of individual alloys can vary from 2.63 to 2.85 g/cm3 (0.095 to 0.103 lbs/in3) or 7.7 %. Therefore in calculating the weight of a component it is important to use the density of the alloy concerned.

Alloy g/cm3 lbs/in3
1100 2.71 0.098
1200 2.71 0.098
2014 2.80 0.101
2024 2.77 0.100
3003 2.73 0.099
5251 2.69 0.097
6061 2.71 0.098
6082 2.71 0.098
7075 2.80 0.101