2A70 Aluminum Round Bar

Chemical composition of 2A70 aluminum alloy

●Aluminum (Al): balance
●Silicon (Si): 0.35% max
●Ferrum (Fe): 0.9-1.5% max
●Copper (Cu): 1.9-2.5%
●Manganese (Mn): 0.2%
●Magnesium (Mg): 1.4-1.8%
●Zinc (Zn): 0.3% max
●Titanium (Ti): 0.15% max
●Other elements: Each 0.05% max, Total 0.1% max

Typical mechanical properties of  2A70 aluminum

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

2A70 aluminum round bar application

The 2A70 aluminum round bar is part of the 2000 series aluminum alloys, which are known for their high copper content. It is a heat-treatable alloy that provides excellent strength and machinability. While its corrosion resistance is lower than other aluminum alloys, it compensates with superior mechanical properties, making it suitable for industries requiring high strength and durability.

Common Applications of 2A70 Aluminum Round Bar:

1.Aerospace Components:
o2A70 aluminum round bars are commonly used in the aerospace industry for applications requiring high strength and fatigue resistance, such as aircraft structural components, fuselage frames, landing gear parts, and rivets. The alloy's excellent machinability makes it ideal for precise aerospace applications.

2.Automotive Industry:
In the automotive sector, 2A70 aluminum round bars are used for high-performance parts like suspension systems, engine components, chassis frames, and connecting rods. Its high strength-to-weight ratio contributes to lighter, more efficient vehicles while maintaining durability.

3.Heavy-Duty Machinery:
The machinery industry uses 2A70 aluminum round bars for components subject to heavy loads and mechanical stress, such as shafts, gears, and bearings. Its excellent mechanical properties make it ideal for parts that require high strength and precision machining.

4.Defense and Military Applications:
Due to its high strength and fatigue resistance, 2A70 aluminum round bars are used in the defense industry for vehicle components, armor plating, and weapon systems. These applications demand a material that can withstand extreme conditions and repeated stress.

5.Tooling and Molds:
The tooling industry benefits from the use of 2A70 aluminum round bars in the manufacture of molds, dies, and tooling components. The alloy's ability to maintain dimensional stability under high stress makes it suitable for creating high-quality, durable tools.

6.Marine Applications (with Surface Treatment):
Though 2A70 has lower corrosion resistance compared to marine-grade alloys, it can still be used in marine applications with protective coatings or anodizing. It can be applied to marine fittings, fasteners, and structural components that require high strength and fatigue resistance.

7.Structural Applications:
In the construction industry, 2A70 aluminum round bars are used for load-bearing structural elements, such as beams, brackets, and supports in building frameworks. Its strength and ability to withstand heavy mechanical stress make it an ideal material for high-strength construction.

8.Electrical Applications:
In the electrical industry, 2A70 aluminum round bars are used in the manufacture of electrical connectors, brackets, and mounting hardware where strength and precision are essential.

Conclusion:

The 2A70 aluminum round bar is a high-strength alloy with excellent machinability, making it suitable for demanding applications in aerospace, automotive, defense, and machinery industries. Although it requires surface protection in corrosive environments, its mechanical properties ensure reliable performance in various engineering and structural applications.