3A21 Aluminum Sheet Plate

Chemical composition of 3A21 aluminum alloy

●Aluminum (Al): balance
●Silicon (Si): 0.6% max
●Ferrum (Fe): 0.7% max
●Copper (Cu): 0.2%
●Manganese (Mn): 1.0-1.6%
●Zinc (Zn): 0.15% max
●Ti: 0.1%~0.2% max
●Other elements: Each 0.05% max, Total 0.1% max

Typical mechanical properties of 3A21 H112 aluminum

(The values are typical or min values,for reference only.)  

3A21 aluminum sheet plate application

The 3A21 aluminum sheet is a non-heat-treatable aluminum-manganese alloy, known for its excellent corrosion resistance, good formability, and moderate strength. It is widely used in a variety of applications, especially where corrosion resistance is a key requirement.

Here are some common applications of 3A21 aluminum sheet:

1.Building and Construction: Due to its excellent resistance to atmospheric corrosion, it is often used for roofing, siding, and other structural components in the construction industry.

2.Automotive Industry: 3A21 is used in body panels, doors, and hoods because of its lightweight properties, making vehicles more fuel-efficient.

3.Packaging Industry: Its good formability allows it to be used in the production of cans, containers, and packaging materials, particularly for the food and beverage industry.

4.Chemical Equipment: 3A21 aluminum is often utilized in the manufacturing of chemical and food processing equipment due to its resistance to corrosion in mild environments.

5.Household Appliances: It is used for making kitchen utensils, cookware, and other household items.

Overall, 3A21 aluminum sheet offers a combination of moderate strength, good corrosion resistance, and excellent formability, making it suitable for applications requiring durable and lightweight materials.