Aluminum Alloy Material

Introduction of aluminum alloy materials

Aluminum alloy material, as a metal material alloyed with aluminum and other elements (such as copper, magnesium, manganese, silicon, zinc, etc.), is used in industrial production and daily life due to its unique physical and chemical properties and excellent performance. plays an important role. This article will introduce the characteristics of aluminum alloy in detail and explore its wide range of applications in various fields.

Alloys of Common aluminum alloy materials

Common aluminum alloy alloys cover multiple series. Here are some major aluminum alloy series and typical alloys:

1000 series aluminum: series with higher pure aluminum content, such as 1050, 1060, etc., mainly used in occasions with high requirements on conductivity and corrosion resistance, such as cables, foils, and chemical equipment linings.

2000 series: Duralumin alloys with copper as the main alloy element, such as 2014 and 2024, have high strength properties and are widely used in aerospace, rail transit structural parts and sports equipment manufacturing.

3000 series: Added manganese as the main alloy element, such as 3003 and 3004, which have good anti-rust properties and are commonly used in containers, pipes, automobile radiators, building materials and other fields.

5000 series: Mainly containing magnesium, such as 5052, 5083, and 5754. These alloys have high corrosion resistance and weldability, and are mostly used in ships, vehicles, pressure vessels, and building curtain wall systems.

6000 series: With magnesium and silicon as the main alloy elements, such as 6061, 6063, and 6082, it is one of the most widely used aluminum alloy series. It has moderate strength and excellent processability. It is suitable for various industrial profiles, pipes, wires, and precision parts. It is commonly used in building door and window frames, aircraft structural components, bicycle racks and other products.

7000 series: High-strength aluminum alloys, such as 7075, contain zinc as the main alloy element. They have the highest strength but relatively low corrosion resistance. They are mainly used in advanced structural components, racing parts and high-end sports equipment in the aviation industry.

The existence form of aluminum alloy materials

Aluminum alloy materials are ubiquitous in life, and aluminum alloy products exist in various forms. The following is an introduction to you.

• Aluminum alloy plates/coils: including flat-rolled plates, pre-stretched plates, etc., with a wide range of thicknesses, mainly used to manufacture aircraft parts, automobile bodies, ship hull structures, building curtain walls, household appliance panels, and various types of containers.
• Aluminum foil material: Aluminum foil is a relatively thin aluminum alloy coil or sheet, which is mostly used in kitchen, food packaging, pharmaceutical packaging, flexible packaging, electrical industry and other fields.
• Pipes and rods: Aluminum alloy pipes have various cross-sectional shapes such as circular, rectangular, and polygonal, and are used in transportation pipelines, building structures, sports equipment, and mechanical components; rods are used in machined parts, fasteners, and Various support structures.
• Profiles: Aluminum alloy profiles have a variety of cross-sectional shapes, such as I-shaped, channel-shaped, T-shaped, L-shaped, mouth-shaped, etc., and are widely used in door and window frames, curtain wall systems, rail vehicles, aerospace structures, exhibition displays, and furniture Manufacturing and other fields.
• Wires and wires: including aluminum wires for wire conductors, welding wires, wires for springs, etc., meeting the needs of power transmission, welding processes and elastic component manufacturing.
• Castings and forgings: Aluminum alloy castings are suitable for automobile engine parts, mechanical equipment accessories, valves, casings, etc.; and aluminum alloy forgings are often used in key load-bearing parts in the aviation and aerospace industries, such as aircraft, due to high strength properties. Landing gear, fuselage structural parts, etc.
• Powder metallurgy products: In modern technology, aluminum alloys can also be made into powder form, and high-performance parts can be produced through powder metallurgy technology. For example, aluminum alloy powder materials is used in metal additive manufacturing in the field of 3D printing.
• Composite materials: Aluminum alloy materials can be combined with other materials to form composite materials, such as carbon fiber reinforced aluminum alloy composite materials. This type of material combines the light weight and excellent conductivity of aluminum alloy with the high strength and high modulus of carbon fiber. It is widely used in high-end equipment manufacturing industry. has important applications.
• Each form of aluminum alloy material undergoes corresponding production processes (such as casting, extrusion, heat treatment, cold rolling, forging, etc.) to achieve its specific performance requirements.

Huawei Aluminum specializes in the production and sales of aluminum plates/rolls, aluminum foil, aluminum wafers and other materials. Our products are customized by customers and the price is excellent. If you have any needs, please contact us.

Main characteristics of aluminum alloy materials

• 1. Lightweight and high strength: The density of aluminum alloy is about 2.7g/cm³, which is much lower than iron and steel (about 7.8g/cm³). However, through reasonable alloying design, its strength can reach or even exceed that of some high-quality steels. kind. For example, the tensile strength of aviation-grade 7075 aluminum alloy materials can reach more than 570MPa.
• 2. Strong corrosion resistance: A dense oxide film is easy to form on the aluminum surface, which effectively prevents the internal metal from contacting the air, thus having good corrosion resistance. In addition, some aluminum alloys, such as 6061, 5083 and other marine-grade aluminum alloys, show excellent corrosion resistance in seawater environments.
• 3. Good electrical and thermal conductivity: The electrical conductivity and thermal conductivity of aluminum alloy are second only to silver and copper, which have significant advantages for power transmission equipment, radiators, etc. The electrical conductivity of pure aluminum is 377W/(m·K), while some aluminum alloys such as 1050 aluminum alloy can still maintain high electrical conductivity.
• 4. Ease of processing: Aluminum alloy materials has good castability, forging and weldability, and is easy to undergo various forms of mechanical processing and heat treatment to meet the design needs of different structural parts and parts.

Applicationss of aluminum alloy

1050 aluminum alloy: This is a kind of industrial pure aluminum with high purity. Its aluminum content is usually more than 99.5%, and it has good electrical conductivity and corrosion resistance. It is mainly used in manufacturing applications that do not require high strength but require high electrical or thermal conductivity, such as shielding layers of power cables, electronic foils, and aluminum foil for food packaging. 1050 aluminum alloy can be made into sheets or foils of different thicknesses and maintains good formability after O-state (fully annealed) treatment.

3003 aluminum alloy: This series of aluminum alloy materials contains a small amount of manganese, which gives it good mechanical properties and corrosion resistance. It is a commonly used anti-rust aluminum alloy. It is suitable for making tanks, car radiators, household kitchenware and other parts that require both lightweight and corrosion resistance. 3003 aluminum sheet plate can be cold rolled into plates of different thicknesses or extruded into profiles of various cross-sectional shapes. The status codes include H14 (semi-hard), H16 (medium hardness), H18 (fully soft), etc., and different tempering states Corresponding to different molding and use requirements.

5052 aluminum alloy: This alloy contains magnesium and is a typical rust-proof aluminum alloy with high strength and excellent weldability. It is suitable for use in high-strength corrosion-resistant fields such as ships, vehicles, and containers, as well as complex structural parts such as pressure vessels and aerospace components. 5052 aluminum alloy materials is often processed into thick or medium-thick plates. The states include H32 (solid solution + slight incomplete annealing), H34 (further annealing to increase toughness) and H38 (higher degree of annealing to improve ductility), depending on the final product. Select the corresponding state according to the mechanical performance requirements.

6061 aluminum alloy: Belongs to the 6xxx series. It mainly adds silicon and magnesium. It can be strengthened after heat treatment, so it has high mechanical strength and good corrosion resistance. It is widely used in building structures, bridges, bicycle frames, aerospace parts and other fields. 6061 aluminum alloy products can be in T6 state (solid solution + artificial aging treatment). In this state, the material reaches the best balance of mechanical properties. Its size specifications can be customized according to design requirements, and can be produced from thin plates to thick-walled pipes.

7075 aluminum alloy: This ultra-high-strength aluminum alloy contains zinc and magnesium and is known as an “aerospace-grade” aluminum alloy with extremely high strength and hardness. It is mainly used in aircraft structural parts, high-end sports equipment, precision mechanical parts and other application scenarios that require extremely high strength to weight ratio. 7075 aluminum alloy materials is generally processed through T6 or T73/T76 conditions to obtain the best mechanical properties. Its products are in various forms, covering thin plates, thick plates, bars, forgings, etc.