INTRODUCTION
Aluminum has a lighter specific gravity, smaller rebound during forming, relatively high strength, close to or exceeding high-quality steel, and good plasticity. When the product is formed more complexly, it is easier to control than stainless steel. It has excellent electrical conductivity, thermal conductivity, and resistance. It is corrosive, and the surface treatment processes of aluminum such as anodizing, wire drawing, and sandblasting are already very mature. Aluminum is also widely used in mobile phones. According to the processing method, aluminum alloys can be divided into deformed aluminum alloys and cast aluminum alloys. The numbers of aluminum and aluminum alloys are mainly divided into eight series. The different characteristics and applications of these aluminum alloy series will be introduced in detail below.
1000 SERIES ALUMINUM ALLOY (PURE ALUMINUM )
Among all series, the 1000 series contains the most aluminum, and the purity can reach more than 99.00%. The minimum aluminum content of the 1000 series aluminum plate is determined based on the last two Arabic numerals of the series. For example, the last two Arabic numerals of the 1050 series are 50. According to the international brand naming principles, the aluminum content must reach more than 99.5% to be a qualified product. The 1000 series aluminum has good formability and surface treatment properties, and has the best corrosion resistance among aluminum alloys. Its strength is low, and the higher the purity, the lower its strength. 1000 series aluminum materials are relatively soft and are mainly used for decorative or interior parts.
2000 SERIES ALUMINUM ALLOY (COPPER ALLOY)
It is characterized by high hardness but poor corrosion resistance. Among them, the copper content is the highest. The 2000 series aluminum alloy represents 2024, 2A16, and 2A02. The copper content of the 2000 series aluminum plate is about 3% to 5%.2000 series aluminum rods are aviation aluminum materials and are used as structural materials. They are currently not commonly used in conventional industries.
3000 SERIES ALUMINUM ALLOY (MANAGANESE ALLOY)
3000 series aluminum rods are mainly composed of manganese. The 3000 series aluminum alloys mainly represent 3003, 3105 and 3A21. The content is 1.0~1.5, which is a series with better anti-rust function. It is commonly used as tanks and tanks for liquid products, construction processing parts, construction tools, various lighting parts, and various pressure vessels and pipes for sheet processing. Formability, weldability and corrosion resistance are all good.
4000 SERIES ALUMINUM ALLOY (SILICONALLOY)
4000 series aluminum usually has a silicon content of 4.5% to 6.0%. The higher the silicon content, the higher the strength. The 4000 series aluminum rods are represented by 4A01 and the 4000 series aluminum plates belong to the series with higher silicon content. It has good liquid flow and little solidification shrinkage. It is a building material, mechanical parts, forging materials, and welding materials. It has low melting point, good corrosion resistance, heat resistance, and wear resistance.
5000 SERIES ALUMINUM ALLOY (MAGNESIUM ALLOY)
5000 series aluminum rods belong to the more commonly used alloy aluminum plate series. The main element is magnesium, and the magnesium content is 3% to 5%. The 5000 series aluminum alloy represents the 5052, 5005, 5083, and 5A05 series. It can also be called aluminum-magnesium alloy. The main features are low density, high tensile strength and high elongation. The weight of aluminum-magnesium alloy is lower than that of other series under the same area, and it is also widely used in conventional industries.
The most commonly used in mobile phones is 5052, which is the most representative alloy with medium strength. It has good corrosion resistance, weldability and formability, especially high fatigue strength and good seawater resistance. It is often used in products with high strength requirements. , but its coloring effect is less than ideal. It is suitable for sandblasting process, but not suitable for chemical sanding, matte surface, etc. It mainly uses casting molding and is not suitable for extrusion molding.
6000 SERIES ALUMINUM ALLOY (MAGNESIUM SILICON ALLOY)
The 6000 series aluminum alloy adds magnesium and silicon as alloy elements, which has high strength, corrosion resistance and heat treatment responsiveness. This aluminum alloy is widely used in structural parts and housings in aerospace, automotive and construction industries.
7000 SERIES ALUMINUM ALLOY (ZINC ALLOY)
7000 series aluminum alloy adds zinc as an alloy element and has good plasticity and welding properties. This aluminum alloy also has high strength and corrosion resistance and is often used to make structural parts and housings in aerospace and automotive fields.
8000 SERIES ALUMINUM ALLOY (OTHER ALLOYS)
8000 series aluminum alloy is a special type of alloy, including aluminum-tin alloy, aluminum-lithium alloy, aluminum-bismuth alloy, etc. These aluminum alloys have high strength, hardness and corrosion resistance and are widely used in high-performance structural parts and components in aerospace, automotive and electronics.
CONCLUSION
Different series of aluminum alloys have different characteristics and applications. Choosing a suitable aluminum alloy series can be determined according to specific engineering needs and application environment to achieve the best performance and effect.
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