Aluminum plate

How to calculate the weight 

The weight of plate is easily calculated. Simply multiply the appropriate alloy density (see chart below) by the length, width, and thickness of 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 T x W x L = weight
Example 2.80g/cm³ x 50mm x 1.25m x 2.5m = 437.5 kg


Imperial density (lbs/in³) x T x W x L = weight
Example 0.101 lbs/in³ x 4in x 48in x 144in = 2792.45lbs

 

For imperial weight calculations certain measurements (fractions) need to be converted to decimal inches.

For an accurate calculation it is also important to allow for the rolling tolerance which affects the thickness and the cutting tolerances which affect the width and length. These vary from thickness to thickness – please contact us for details.

The following chart is a sample of some of the common thicknesses and sizes that are available. Please contact us for details of our full product range and current stock availability.

Thickness Weight
mm in kg/m2 lbs/ft2
6.35 1/4 17.78 3.64
10.00   28.00  
12.70 1/2 35.56 7.27
15.00   42.00  
  3/4   10.91
20.00   56.00  
25.40 1 71.12 14.54
30.00   84.00  
  1 1/4   18.18
38.10 1 1/2 106.68 21.82
50.00   140.00  
50.80 2 142.24 29.09
60.00   168.00  
  2 3/8   34.54
63.50 2 1/2 177.80 36.36
  2 3/4   40.00
70.00   196.00  
76.20 3 213.36 43.63
80.00   224.00  
88.90 3 1/2 248.92 50.90
100.00   280.00  
  4   58.18
127.00 5 355.60 72.72
130.00   364.00  
  5 1/2   79.99 
140.00   392.00  
150.00   420.00  
152.40 6 426.72 87.26

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

Densities of common alloys

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
2014 2.80 0.101
2024 2.77 0.100
2027 2.79 0.101
2124 2.77 0.100
2214 2.80 0.101
2219 2.85 0.103
2618 2.77 0.100
5056 2.63 0.095
5251 2.69 0.097
6061 2.71 0.098
6063 2.69 0.097
6082 2.71 0.098
7010 2.82 0.102
7050 2.82 0.102
7055 2.86 0.103
7075 2.80 0.101
7085 2.85 0.103
7150 2.82 0.102
7175 2.80 0.101
7449 2.85 0.103
7475 2.80 0.101