3000 series aluminum alloy is a type of aluminum alloy with manganese as the main alloying component. It has the characteristics of good rust resistance, strong corrosion resistance and good weldability. It is widely used in many fields such as construction, home appliances, transportation, etc.
Composition and characteristics of 3000 series aluminum alloy:
1. Main composition: 3000 series aluminum alloy has manganese as the main alloying component, and the content is usually between 1.0% and 1.5%. The addition of manganese improves the mechanical strength and corrosion resistance of the alloy.
2. Characteristics:
- Good rust prevention function: 3000 series aluminum alloy has good corrosion resistance and is suitable for application scenarios requiring high corrosion resistance.
- Good weldability: This series of aluminum alloys is easy to weld and is suitable for manufacturing parts that require welding.
- Excellent processing performance: 3000 series aluminium alloys have good formability and work hardening characteristics, and can increase strength through cold working.
Main grades of 3000 series aluminium alloys:
1. 3003
- The most common 3000 series aluminum alloy, with a manganese content of 1.0-1.5%, has excellent anti-rust performance and is suitable for humid environments. Commonly used in air conditioners, refrigerators, underbody parts, building decorative panels, kitchen utensils, etc.
- Features: moderate strength, good processing performance and low cost.
- Applications: plates, pipes, containers, etc.
2. 3A21
- Similar to 3003, with similar manganese content, it is one of the representative grades with mature production technology and is widely used in scenes with high anti-rust requirements, such as ships and chemical equipment.
3. 3004
- The manganese content is slightly higher and the strength is higher than 3003. It is often used in beverage cans, roof panels, color coated aluminum sheets and other fields with slightly higher strength requirements.
4. 3005
- Strengthened on the basis of 3003, the tensile strength is increased by about 20%, and the corrosion resistance is better. It is suitable for building materials, chemical storage tanks, ship parts, etc.
5. 3105
It is stronger than 3003 and is mainly used for bottle cap materials, building materials and color coated aluminum plates.
Production process and market situation
- Production process: The production process of 3000 series aluminum alloys includes smelting, casting, rolling, annealing and other steps. By controlling the alloy composition and processing technology, aluminum alloy products with different properties and specifications can be obtained.
- Market situation: 3000 series aluminum alloys have a wide range of applications and demands in the market. Due to its good corrosion resistance and processing performance, this series of aluminum alloys has been widely used in construction, home appliances, transportation and other fields.
Application of 3000 series aluminum alloy:
- Construction field: used to manufacture construction processing parts, construction hardware, building curtain walls, etc.
- Home appliance field: used to manufacture housings or parts of home appliances such as air conditioners and refrigerators that require high corrosion resistance.
- Transportation field: used to manufacture tanks and tanks for transporting liquid products, as well as parts of vehicles such as trucks and trailers.
- Other fields: It can also be used to manufacture various lighting parts, various pressure vessels and pipes for thin plate processing, etc.
The 3000 series aluminum alloys are centered around 3003, which has become the preferred material for wet environments and conventional industries due to its rust-proof properties and cost advantages. If higher strength is required, 3004 or 3005 can be used, while 3A21 occupies an important position in domestic production.
