What are the materials of aluminum profiles?

Apr 15, 2025

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1. Common specifications of aluminum profiles mainly include
15 series, 20 series, 30 series, 40 series, 45 series, 50 series and 60 series.

2. In terms of the material of aluminum profiles, there are many alloys to choose from
For example, A2011 alloy, which belongs to the aluminum-copper category, has excellent processability and excellent corrosion resistance. A2017 alloy also belongs to the aluminum-copper category, which is characterized by high strength and good processability, and is often classified as hard aluminum. A5052 aluminum alloy is a representative alloy of aluminum-manganese. It has both medium strength and high fatigue strength, and its seawater resistance is also quite good. A5056 aluminum alloy also performs well in seawater resistance, and its surface treatment effect is also quite good after cutting. A6061 aluminum alloy belongs to the aluminum-manganese-silicon category. After heat treatment and T6 treatment, it can obtain excellent corrosion resistance. Compared with A6061, A6063 aluminum alloy has slightly lower strength, but better extrudability, can form various complex cross-sectional shapes, and has excellent corrosion resistance and surface treatment. Finally, A7075 aluminum alloy belongs to the aluminum-zinc-manganese category, which is one of the aluminum alloys with extremely high strength, but it should be noted that its corrosion resistance is relatively poor and is often classified as a super-hard aluminum alloy.

3. Wall thickness selection
The wall thickness of aluminum profiles produced by different manufacturers may vary. Usually, conventional wall thickness specifications include 1.5, 1.8, 2.0, 2.5, 3.0, 3.2, 3.5 and 4.0.

4. Type classification
Aluminum profiles can be classified according to different needs. For example, according to their use and shape, aluminum profiles can be divided into many types, such as architectural profiles, industrial profiles, etc. At the same time, according to their cross-sectional shape, aluminum profiles can also be divided into many different shapes, such as rectangles, circles, etc.
There are two key points of knowledge involved here, let's explore them one by one:

Regarding the axial hole of the aluminum profile, its hole position design usually refers to the bottom hole of the thread, which means that these holes can be used directly for tapping without additional adjustment.

When purchasing T-nuts, you only need to pay attention to the model matching and thread size and material selection. The shape of the nut will automatically match the size of the slot without additional adjustment. Specifically, it means choosing the right model, thread size and material, and the shape of the nut will fit the slot perfectly.
Note: In the above figure, the letters after the 4040 aluminum profile represent its different thickness and weight per meter. When choosing, it needs to be determined according to actual needs. Taking the 40 type as an example, even if it is the same model, its specifications are varied, and the applicable scope of aluminum profiles of different thicknesses is also different.

Thickness (mm)
Common application range
1.5
Applicable to frame combinations with less stress and strength, such as the workbench and production management board frame production in the assembly line workshop.
2.0
Applicable to frame structures that require a certain strength but are not heavy-duty.
2.5
Suitable for medium strength and load-bearing occasions.
3.2, 4.0
Suitable for frame structure combinations with high stress and strength, such as the production of equipment rack frames.

Basic knowledge of aluminum profilesBasic knowledge of aluminum profiles