Aluminum alloy density
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Aluminum alloy density
Aluminum alloy is an alloy composed of aluminum and other metal elements (such as copper, zinc, magnesium, silicon, etc.). It has excellent physical and mechanical properties and is widely used in aviation, automobiles, construction, electronics and other fields. The density of aluminum alloy is one of the important indicators of aluminum alloy performance and has an important impact on the design, manufacturing and application of aluminum alloy.
Aluminum alloy density
The low-density properties of aluminum alloys are used in many application fields, so how low is the density of aluminum alloys? What is the density of different grades of alloys? Let’s take a look at the density of aluminum alloys and how to calculate the density of aluminum alloys.
Factors affecting aluminum alloy density
- Alloy composition: The density of aluminum alloys is closely related to its composition. The addition of different metallic elements will change the density of aluminum alloys. For example, copper and zinc have higher densities, and adding aluminum alloys will increase their densities; while magnesium and silicon have lower densities, and adding aluminum alloys will reduce their densities.
- Processing technology: The processing technology of aluminum alloy will also affect its density. For example, cast aluminum alloys generally have a higher density than wrought aluminum alloys. In addition, processing processes such as heat treatment, rolling, and extrusion will also have a certain impact on the density of aluminum alloys.
- Temperature: Temperature is another important factor affecting the density of aluminum alloys. As the temperature increases, the atomic distance between aluminum alloys increases, resulting in a decrease in density. Therefore, aluminum alloy parts working at high temperatures need to pay attention to their density changes.
From the above knowledge, it can be concluded that under the same process and environmental temperature, the density of aluminum alloy is related to the alloy composition of the aluminum alloy, that is, the density of different grades of alloys is different.
Chemical compositions of different alloys
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Zn | V | Ti | Zr | Limits†† | Al | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Each | Total | ||||||||||||
| 1050 | 0.25 | 0.40 | 0.05 | 0.05 | 0.05 | 0.05 | 0.03 | 99.5 min | |||||
| 1060 | 0.25 | 0.35 | 0.05 | 0.028 | 0.03 | 0.03 | 0.05 | 0.05 | 0.028 | 0.03 | 0.028 | 99.6 min | |
| 1100 | 0.95 Si+Fe | 0.05–0.20 | 0.05 | 0.10 | 0.05 | 0.15 | 99.0 min | ||||||
| 1199 | 0.006 | 0.006 | 0.006 | 0.002 | 0.006 | 0.006 | 0.005 | 0.002 | 0.002 | 99.99 min | |||
| 2014 | 0.50–1.2 | 0.7 | 3.9–5.0 | 0.40–1.2 | 0.20–0.8 | 0.10 | 0.25 | 0.15 | 0.05 | 0.15 | remainder | ||
| 2024 | 0.50 | 0.50 | 3.8–4.9 | 0.30–0.9 | 1.2–1.8 | 0.10 | 0.25 | 0.15 | 0.05 | 0.15 | remainder | ||
| 2219 | 0.2 | 0.30 | 5.8–6.8 | 0.20–0.40 | 0.02 | 0.10 | 0.05–0.15 | 0.02–0.10 | 0.10–0.25 | 0.05 | 0.15 | remainder | |
| 3003 | 0.6 | 0.7 | 0.05–0.20 | 1.0–1.5 | 0.10 | 0.05 | 0.15 | remainder | |||||
| 3004 | 0.30 | 0.7 | 0.25 | 1.0–1.5 | 0.8–1.3 | 0.25 | 0.05 | 0.15 | remainder | ||||
| 3102 | 0.40 | 0.7 | 0.10 | 0.05–0.40 | 0.30 | 0.10 | 0.05 | 0.15 | remainder | ||||
| 4041 | 4.5–6.0 | 0.80 | 0.30 | 0.05 | 0.05 | 0.10 | 0.20 | 0.05 | 0.15 | remainder | |||
| 5005 | 0.3 | 0.7 | 0.2 | 0.2 | 0.5-1.1 | 0.1 | 0.25 | 0.05 | 0.15 | remainder | |||
| 5052 | 0.25 | 0.40 | 0.10 | 0.10 | 2.2–2.8 | 0.15–0.35 | 0.10 | 0.05 | 0.15 | remainder | |||
| 5083 | 0.40 | 0.40 | 0.10 | 0.40–1.0 | 4.0–4.9 | 0.05–0.25 | 0.25 | 0.15 | 0.05 | 0.15 | remainder | ||
| 5086 | 0.40 | 0.50 | 0.10 | 0.20–0.7 | 3.5–4.5 | 0.05–0.25 | 0.25 | 0.15 | 0.05 | 0.15 | remainder | ||
| 5154 | 0.25 | 0.40 | 0.10 | 0.10 | 3.10–3.90 | 0.15–0.35 | 0.20 | 0.20 | 0.05 | 0.15 | remainder | ||
| 5356 | 0.25 | 0.40 | 0.10 | 0.10 | 4.50–5.50 | 0.05–0.20 | 0.10 | 0.06–0.20 | 0.05 | 0.15 | remainder | ||
| 5454 | 0.25 | 0.40 | 0.10 | 0.50–1.0 | 2.4–3.0 | 0.05–0.20 | 0.25 | 0.20 | 0.05 | 0.15 | remainder | ||
| 5456 | 0.25 | 0.40 | 0.10 | 0.50–1.0 | 4.7–5.5 | 0.05–0.20 | 0.25 | 0.20 | 0.05 | 0.15 | remainder | ||
| 5754 | 0.40 | 0.40 | 0.10 | 0.50 | 2.6–3.6 | 0.30 | 0.20 | 0.15 | 0.05 | 0.15 | remainder | ||
| 6005 | 0.6–0.9 | 0.35 | 0.10 | 0.10 | 0.40–0.6 | 0.10 | 0.10 | 0.10 | 0.05 | 0.15 | remainder | ||
| 6005A | 0.50–0.9 | 0.35 | 0.30 | 0.50 | 0.40–0.7 | 0.30 | 0.20 | 0.10 | 0.05 | 0.15 | remainder | ||
| 6060 | 0.30–0.6 | 0.10–0.30 | 0.10 | 0.10 | 0.35–0.6 | 0.05 | 0.15 | 0.10 | 0.05 | 0.15 | remainder | ||
| 6061 | 0.40–0.8 | 0.7 | 0.15–0.40 | 0.15 | 0.8–1.2 | 0.04–0.35 | 0.25 | 0.15 | 0.05 | 0.15 | remainder | ||
| 6063 | 0.20–0.6 | 0.35 | 0.10 | 0.10 | 0.45–0.9 | 0.10 | 0.10 | 0.10 | 0.05 | 0.15 | remainder | ||
| 6066 | 0.9–1.8 | 0.50 | 0.7–1.2 | 0.6–1.1 | 0.8–1.4 | 0.40 | 0.25 | 0.20 | 0.05 | 0.15 | remainder | ||
| 6070 | 1.0–1.7 | 0.50 | 0.15–0.40 | 0.40–1.0 | 0.50–1.2 | 0.10 | 0.25 | 0.15 | 0.05 | 0.15 | remainder | ||
| 6082 | 0.7–1.3 | 0.50 | 0.10 | 0.40–1.0 | 0.60–1.2 | 0.25 | 0.20 | 0.10 | 0.05 | 0.15 | remainder | ||
| 6105 | 0.6–1.0 | 0.35 | 0.10 | 0.10 | 0.45–0.8 | 0.10 | 0.10 | 0.10 | 0.05 | 0.15 | remainder | ||
| 6162 | 0.40–0.8 | 0.50 | 0.20 | 0.10 | 0.7–1.1 | 0.10 | 0.25 | 0.10 | 0.05 | 0.15 | remainder | ||
| 6262 | 0.40–0.8 | 0.7 | 0.15–0.40 | 0.15 | 0.8–1.2 | 0.04–0.14 | 0.25 | 0.15 | 0.05 | 0.15 | remainder | ||
| 6351 | 0.7–1.3 | 0.50 | 0.10 | 0.40–0.8 | 0.40–0.8 | 0.20 | 0.20 | 0.05 | 0.15 | remainder | |||
| 6463 | 0.20–0.6 | 0.15 | 0.20 | 0.05 | 0.45–0.9 | 0.05 | 0.05 | 0.15 | remainder | ||||
| 7005 | 0.35 | 0.40 | 0.10 | 0.20–0.70 | 1.0–1.8 | 0.06–0.20 | 4.0–5.0 | 0.01–0.06 | 0.08–0.20 | 0.05 | 0.15 | remainder | |
| 7022 | 0.50 | 0.50 | 0.50–1.00 | 0.10–0.40 | 2.60–3.70 | 0.10–0.30 | 4.30–5.20 | 0.20 | 0.05 | 0.15 | remainder | ||
| 7068 | 0.12 | 0.15 | 1.60–2.40 | 0.10 | 2.20–3.00 | 0.05 | 7.30–8.30 | 0.01 | 0.05–0.15 | 0.05 | 0.15 | remainder | |
| 7072 | 0.7 Si+Fe | 0.10 | 0.10 | 0.10 | 0.8–1.3 | 0.05 | 0.15 | remainder | |||||
| 7075 | 0.40 | 0.50 | 1.2–2.0 | 0.30 | 2.1–2.9 | 0.18–0.28 | 5.1–6.1 | 0.20 | 0.05 | 0.15 | remainder | ||
| 7079 | 0.3 | 0.40 | 0.40–0.80 | 0.10–0.30 | 2.9–3.7 | 0.10–0.25 | 3.8–4.8 | 0.10 | 0.05 | 0.15 | remainder | ||
| 7116 | 0.15 | 0.30 | 0.50–1.1 | 0.05 | 0.8–1.4 | 4.2–5.2 | 0.05 | 0.05 | 0.05 | 0.15 | remainder | ||
| 7129 | 0.15 | 0.30 | 0.50–0.9 | 0.10 | 1.3–2.0 | 0.10 | 4.2–5.2 | 0.05 | 0.05 | 0.05 | 0.15 | remainder | |
| 7178 | 0.40 | 0.50 | 1.6–2.4 | 0.30 | 2.4–3.1 | 0.18–0.28 | 6.3–7.3 | 0.20 | 0.05 | 0.15 | remainder | ||
| 8176 | 0.03–0.15 | 0.40–1.0 | 0.10 | 0.05 | 0.15 | remainder | |||||||
Aluminum alloy added element density table
| Element | Density (g/cm³) |
| Mg | 1.74 |
| Si | 2.33 |
| Al | 2.7 |
| Ti | 4.5 |
| V | 5.96 |
| Zr | 6.49 |
| Zn | 7.14 |
| Cr | 7.19 |
| Mn | 7.3 |
| Fe | 7.86 |
| Cu | 8.96 |
Since aluminum usually accounts for more than 90% of aluminum alloy materials, aluminum alloy density is roughly around 2.70 g/cm³, with a rough range of 2.60-2.90 g/cm³
1050 aluminum alloy density calculation
Let’s take the simplest 1050 alloy as an example to calculate the density of aluminum alloy.
The chemical composition of 1050 aluminum alloy is:
Al 99.50, Si≤0.25, Cu≤0.05, Mg≤0.05, Zn≤0.05, Mn≤0.05, Ti≤0.03, V≤0.05, Fe 0.000～0.400
Since the chemical composition of 1050 aluminum alloy is a range data, accurate calculation cannot be carried out. The following table is the accurate chemical composition table of 1050 aluminum plate produced at a certain time. We can calculate the density of 1050 aluminum alloy through the following data.
| 1050 alloy | ||
| Element | Proportion | Density (g/cm³) |
| AL | 99.5 | 2.70 |
| Si | 0.15 | 2.33 |
| Cu | 0.02 | 8.96 |
| Mg | 0.05 | 1.74 |
| Zn | 0.05 | 7.14 |
| Mn | 0.05 | 7.30 |
| Ti | 0.03 | 4.50 |
| V | 0.05 | 4.96 |
| Fe | 0.1 | 7.86 |
The density of 1050 aluminum alloy can be calculated through the above table. The calculation method is as follows:
(99.5*2.70+0.15*2.33+0.02*8.96+0.05*1.74+0.05*7.14+0.05*7.3+0.03*4.5+0.05*4.96+0.1*7.86)/100 = 2.711567 ≈ 2.711
Here we calculate aluminum alloy density in g/cm³, and express density in lb/in³. The conversion formula between them is 1lb/in³=27.68g/cm³
Another expression for the density of 1050 aluminum alloy through unit conversion is 0.10lb/in³
Therefore, the density of 1050 aluminum alloy is 2.711g/cm³, or expressed as 0.10lb/in³.
Density of different alloys of aluminum
The above is how we calculate the density of 1050 aluminum alloy. Through the above calculation method, we can calculate the aluminum alloy density with diffirent alloys.
| Aluminum Alloy | Density | |
| g/cm³ | lb/in³ | |
| Aluminum Alloy 1050 | 2.711 | 0.10 |
| Aluminum Alloy 1100 | 2.710 | 0.098 |
| Aluminum Alloy 2014 | 2.800 | 0.101 |
| Aluminum Alloy 2024 | 2.780 | 0.100 |
| Aluminum Alloy 3003 | 2.730 | 0.099 |
| Aluminum Alloy 3004 | 2.720 | 0.098 |
| Aluminum Alloy 3005 | 2.730 | 0.098 |
| Aluminum Alloy 3105 | 2.720 | 0.098 |
| Aluminum Alloy 4043 | 2.690 | 0.097 |
| Aluminum Alloy 5005 | 2.700 | 0.098 |
| Aluminum Alloy 5050 | 2.690 | 0.097 |
| Aluminum Alloy 5052 | 2.680 | 0.097 |
| Aluminum Alloy 5083 | 2.660 | 0.096 |
| Aluminum Alloy 5086 | 2.660 | 0.096 |
| Aluminum Alloy 5154 | 2.660 | 0.096 |
| Aluminum Alloy 5183 | 2.660 | 0.096 |
| Aluminum Alloy 5356 | 2.640 | 0.096 |
| Aluminum Alloy 5454 | 2.690 | 0.097 |
| Aluminum Alloy 5456 | 2.660 | 0.096 |
| Aluminum Alloy 5554 | 2.690 | 0.097 |
| Aluminum Alloy 5556 | 2.660 | 0.096 |
| Aluminum Alloy 5654 | 2.660 | 0.096 |
| Aluminum Alloy 6005 | 2.700 | 0.097 |
| Aluminum Alloy 6061 | 2.700 | 0.098 |
| Aluminum Alloy 6063 | 2.700 | 0.097 |
| Aluminum Alloy 6066 | 2.720 | 0.098 |
| Aluminum Alloy 6070 | 2.710 | 0.098 |
| Aluminum Alloy 6105 | 2.690 | 0.097 |
| Aluminum Alloy 6351 | 2.710 | 0.098 |
| Aluminum Alloy 6463 | 2.690 | 0.097 |
| Aluminum Alloy 7075 | 2.810 | 0.101 |
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