1060 H28 Aluminum

1060-H28 aluminum alloy is a special temper of 1060 aluminum alloy, mainly formed through intense strain hardening and partial annealing processes. This alloy is known for its high strength and hardness, but its formability and ductility are relatively poor.

1060 H28 Aluminum Composition

1060 aluminum alloy belongs to the pure aluminum series (with aluminum content of about 99.6% or higher), and thus it has good corrosion resistance and excellent electrical conductivity.

Elements	Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Others	Al
Content (max)	0.25	0.35	0.05	0.03	0.03	-	0.05	0.03	0.15	Remain

H28 Temper 1060 Aluminum

H28 is the temper of 1060 aluminum alloy obtained through cold work hardening and partial annealing. This treatment process maximizes the alloy's strength, but consequently reduces its ductility and formability.

Features of H28 Temper 1060 Aluminum

Strain Hardening and Annealing: H28 is obtained through intense cold work hardening combined with partial annealing. During this process, the lattice of the aluminum alloy is distorted, increasing its strength but significantly reducing its ductility and plasticity. Compared to the H18 temper, the hardness and strength of the H28 temper are slightly higher, but its formability is worse.
Hardness and Strength: 1060-H28 aluminum alloy has near maximum hardness, making it one of the strongest among all cold-worked hardened aluminum alloy tempers. Its high hardness gives 1060-H28 excellent wear resistance and deformation resistance.
Ductility: Due to strain hardening, the ductility of 1060-H28 is significantly reduced, making it poorly suited for plastic deformation. This means the alloy is not easily formable during processing, especially for complex shapes or large-area bending.

Performance of 1060 H28 Aluminum

Strength: 1060-H28 has high strength, making it suitable for applications that require resistance to large forces. After the strengthening process, it possesses strong mechanical properties and can resist significant external forces, making it ideal for demanding conditions.
Hardness: The hardness is very high, typically near maximum strength, and is further enhanced after cold working. This makes it excel in wear resistance and corrosion resistance applications.
Formability: Due to the increased hardness and strength, the formability of 1060-H28 is poor. This alloy is not suitable for applications requiring significant shape changes or complex forming, and is generally used in processes involving machining after forming.
Ductility: The ductility is poor, meaning its plastic deformation ability is low. This limits the alloy's applicability in certain situations, especially in deep drawing or complex shaping.

Applications of 1060 H28 Aluminum

Electronics

1060 H28 aluminum alloy, due to its excellent electrical conductivity and heat dissipation properties, is widely used in electronic products, especially in housings and heat sinks for electronic components. Its high strength and hardness help it withstand external pressure during operation, while improving heat dissipation efficiency and maintaining the stability and long service life of electronic devices.

Electrical Industry

In the electrical industry, 1060 H28 aluminum alloy is mainly used in the manufacture of cables and conductors. Due to its outstanding electrical conductivity, aluminum alloy is commonly used in power transmission and distribution systems, effectively transmitting electrical power. Its lower density makes it lighter than copper, reducing overall cost and weight.

Construction Materials

1060 H28 aluminum alloy, with its corrosion resistance and lightweight characteristics, is widely used in the construction industry. It is commonly used in building facades, roofing, window frames, etc., not only enhancing the appearance of buildings but also increasing durability. The alloy’s resistance to oxidation ensures long-term stability in various weather conditions, making it a common choice in modern architectural design.

Automotive Manufacturing

In automotive manufacturing, 1060 H28 aluminum alloy is applied to components such as the body, interior parts, and radiators. Its lightweight property helps reduce overall vehicle weight, improving fuel efficiency and reducing CO2 emissions. Meanwhile, its high strength ensures that these parts provide adequate structural support and safety inside the vehicle.

Packaging Industry

Due to its good formability and corrosion resistance, 1060 H28 aluminum alloy is widely used in the packaging industry, particularly in food and pharmaceutical packaging. Aluminum foil, cans, and other packaging materials effectively isolate external air and moisture, preserving the freshness and safety of the contents. Additionally, its non-toxic and environmentally friendly properties make it an ideal choice.

Decorative Materials

The glossy finish and attractive appearance of 1060 H28 aluminum alloy make it an ideal choice for decorative materials. It is often used in interior and exterior decorative applications, such as aluminum strips, plates, and frames. These decorative materials not only enhance the visual appeal of buildings or furniture but also, due to the alloy’s corrosion resistance and oxidation resistance, ensure long-lasting aesthetics.

Disadvantages and Limitations of 1060 H28 Aluminum

Poor Ductility: 1060-H28 has low plasticity and ductility, making it unsuitable for applications that require significant deformation or complex forming processes.
Poor Formability: Due to its high hardness, the forming process is relatively difficult, and thus appropriate tools and methods are required during processing.
Poor Weldability: The high hardness and low ductility also result in poor welding performance for 1060-H28, making it generally unsuitable for welding processes.

1060-H28 aluminum alloy is a high-strength aluminum alloy that has undergone intense cold work hardening, providing high hardness and strength, making it suitable for applications that require resistance to large forces and wear, such as wear-resistant parts and load-bearing components in industrial equipment. However, due to its poor formability and ductility, it is not suitable for applications requiring significant plastic deformation.

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