Other materials
Weight calculations
Sheet or plate
The weight is easily calculated. Simply multiply the appropriate alloy density (see chart opposite) by the length, width, and thickness of the required part.
| Metric |
density (g/cm³) |
x |
T(mm) |
x |
W(m) |
x |
L(m) |
= |
weight (kg) |
| Imperial |
density (lbs/in³) |
x |
T (in) |
x |
W (in) |
x |
L (in) |
= |
weight (lbs) |
Round bar
The weight of round bar is easily calculated. Simply multiply the appropriate alloy density (see chart opposite) by the length and diameter of the required part.
| Metric |
density (g/cm³) |
x |
D²(mm²) |
x |
L(m) |
x |
π / 4000 |
= |
weight (kg) |
| Imperial |
density (lbs/in³) |
x |
D² (in²) |
x |
L (in) |
x |
π / 4 |
= |
weight (lbs) |
Square bar
The weight of square bar is easily calculated. Simply multiply the appropriate alloy density (see chart opposite) by the length and thickness multiplied by two of the required part.
| Metric |
density (g/cm³) |
x |
T²(mm²) |
x |
L (m)/ 1000 |
= |
weight (kg) |
| Imperial |
density (lbs/in³) |
x |
T² (in²) |
x |
L(in) |
= |
weight (lbs) |
Flat bar
The weight of flat bar is easily calculated. Simply multiply the appropriate alloy density (see chart below) by the length, width, and thickness of the required part.
| Metric |
density (g/cm³) |
x |
T (mm) |
x |
W (mm) |
x |
L (m)/ 1000 |
= |
weight (kg) |
| Imperial |
density (lbs/in³) |
x |
T(in) |
x |
W (in) |
x |
L (in) |
= |
weight (lbs) |
Tube
The weight of tube is easily calculated. Simply multiply the appropriate alloy density (see chart below) by the calculation shown below of the required part.
| Metric |
density (g/cm³) |
x |
(OD² - (OD - 2xT)²) |
x |
L |
x |
π/4000 |
= |
weight |
| Imperial |
density (lbs/in³) |
x |
(OD² - (OD - 2xT)²) |
x |
L |
x |
π/4 |
= |
weight |
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/drawn tolerances on section for plate, sheet, square bar and flat bar; diameter for round bar; and diameter and wall thickness for tube defined by the manufacturing specification. Please contact us for details.
Densities shown in the chart are typical and should not be construed as maximum or minimum values for specification or for final design. Data on any particular piece of material may vary from those shown herein and therefore it is necessary to refer to the actual specification.
| Aluminium Bronze |
7.53 |
0.272 |
| Copper Alloys |
8.94 |
0.323 |
| Nickel: |
| Alloy 25 |
9.13 |
0.330 |
| Alloy 75 |
8.37 |
0.302 |
| Alloy 80A |
8.19 |
0.296 |
| Alloy 90 |
8.18 |
0.296 |
| Alloy C263 |
8.36 |
0.302 |
| Alloy 400 |
8.83 |
0.319 |
| Alloy 625 |
8.44 |
0.305 |
| Alloy 718 |
8.19 |
0.296 |
| Alloy K500 |
8.44 |
0.305 |
| Alloy X750 |
8.28 |
0.299 |
| Alloy X |
8.22 |
0.297 |
| Waspalloy |
8.19 |
0.296 |
| L-605 (Cobolt Alloy) |
9.13 |
0.330 |
| MP-159 (Cobolt Alloy) |
8.33 |
0.301 |
| MP-35N (Cobolt Alloy) |
8.44 |
0.304 |