1. Chemical composition classification

Pure aluminum coil:

Definition: Aluminum coil with an aluminum content of more than 99%.

Features: Good ductility, electrical conductivity and thermal conductivity.

Application: Mainly used in electronics, electrical, chemical and other fields, such as wires and cables, capacitors, heat exchangers, etc.

Alloy aluminum coil:

Definition: Aluminum coil made by adding other elements (such as copper, manganese, magnesium, silicon, etc.) to pure aluminum.

Classification: According to the different alloy elements added, it can be divided into multiple series, such as 1000 series, 2000 series, 3000 series, etc.

1000 series: Belongs to the pure aluminum series, with good ductility, conductivity and corrosion resistance, but relatively low strength, often used in food packaging, capacitor housing, etc.

2000 series: With copper as the main alloy element, it has high strength and hardness, but poor corrosion resistance, and is often used in aerospace, transportation and other fields.

3000 series: With manganese as the main alloying element, it not only maintains good formability and corrosion resistance, but also improves strength. It is widely used in construction, kitchenware, chemical containers and other fields.

5000 series: With magnesium as the main alloying element, it has excellent corrosion resistance, good weldability and high strength. It is one of the most widely used aluminum alloys and plays an important role in building curtain walls, shipbuilding, refrigeration equipment and other fields.

6000 series: With silicon and magnesium as the main alloying elements, it can obtain higher strength and hardness through heat treatment while maintaining good corrosion resistance. It is often used in structural parts that need to withstand greater stress, such as bridges, rail vehicles, etc.

7000 series: With zinc as the main alloying element, it is one of the strongest series in aluminum alloys, and it also has good resistance to stress corrosion cracking. Due to its high cost and processing difficulty, it is mostly used in high-end aerospace fields and high-performance sports equipment.

2. Processing state classification

Soft aluminum coil:

Definition: Aluminum coil after sufficient annealing.

Characteristics: It has excellent ductility and formability.

Application: Mainly used in areas that require deep processing and complex forming, such as building curtain walls, ceilings, etc.

Hard aluminum coil:

Definition: Aluminum coil that has not been fully annealed.

Features: It has high hardness and strength.

Application: It is mainly used in areas that need to withstand certain loads and impacts, such as automobiles, ships, etc.

3. Surface coating classification

Coated aluminum coil:

Definition: Aluminum coil with one or more layers of metal or non-metallic materials (such as zinc, chromium, polyester, etc.) coated on the surface of the aluminum coil.

Features: It has good corrosion resistance, wear resistance and decorative properties.

Classification: According to the different coating materials, it can be divided into galvanized aluminum coil, chromium-coated aluminum coil, polyester-coated aluminum coil, etc. Common ones include fluorocarbon-coated aluminum coil, polyurethane-coated aluminum coil, PVDF-coated aluminum coil, etc., which have excellent weather resistance, corrosion resistance, fire resistance and other characteristics.

Application: Widely used in construction, home appliances, packaging and other fields.

Non-coated aluminum coil:

Definition: Aluminum coil that has not been coated, and its surface is exposed aluminum.

Application: Mainly used in some fields with low surface requirements, such as building formwork, temporary facilities, etc.

4. Classification of uses

Aluminum coils are widely used, covering many fields such as construction, packaging, electronics, and automobiles. According to different uses, aluminum coils can be divided into architectural aluminum coils, packaging aluminum coils, electronic aluminum coils, etc. Aluminum coils for each purpose are designed and produced according to their specific performance requirements.

In summary, there are various ways to classify aluminum coils, and there are many specific types of aluminum coils under each classification method. In practical applications, it is necessary to select the appropriate type of aluminum coil according to specific needs and scenarios.