7075 T651 aluminum alloy is renowned for its exceptional strength and versatility, making it a critical material in various industries, including aerospace, automotive, and military applications. Understanding its properties, manufacturing processes, and applications is essential for engineers and manufacturers looking to leverage its advantages in their projects.

In this guide, readers will explore the unique characteristics of 7075 T651, including its mechanical properties and heat treatment processes. We will also delve into its applications, benefits, and challenges, providing a comprehensive overview for those interested in utilizing this high-performance alloy.

Additionally, the guide will cover the current landscape of 7075 T651 production in China, highlighting key manufacturers and market trends. By the end of this guide, readers will have a thorough understanding of 7075 T651, empowering them to make informed decisions in their respective fields.

Comprehensive Guide to 7075 T651 Aluminum Alloy

7075 T651 aluminum alloy is a high-strength, heat-treatable aluminum alloy primarily used in aerospace and military applications. Known for its exceptional mechanical properties, it is one of the most popular aluminum alloys in the market. This guide will delve into the technical features, types, and applications of 7075 T651 aluminum, providing insights into its advantages and characteristics.

Technical Features of 7075 T651 Aluminum Alloy

7075 aluminum alloy is primarily composed of zinc, with small amounts of magnesium, copper, and chromium. The T651 temper indicates that the alloy has undergone solution heat treatment, artificial aging, and stress relief through stretching. This process enhances its strength and resistance to stress corrosion cracking.

Technical Comparison Table

Property	Value
Density	2.81 g/cm³
Ultimate Tensile Strength	572 MPa (83 ksi)
Yield Strength	503 MPa (73 ksi)
Elongation	11%
Hardness	150 HB
Corrosion Resistance	Good
MaChinability	Fair
Thermal Conductivity	130 W/m·K

Types of 7075 Aluminum Alloy

7075 aluminum alloy comes in various tempers, each with unique properties and applications. The most common types include 7075-O, 7075-T6, 7075-T651, 7075-T73, and 7075-T7351. Each type is tailored for specific applications based on its mechanical properties.

Types Comparison Table

Alloy Type	Temper	Characteristics	Applications
7075-O	O	Fully annealed, maximum ductility, minimum strength	General applications
7075-T6	T6	High strength, good ductility, poor corrosion resistance	Aerospace components
7075-T651	T651	High strength, good fatigue strength, stress-relieved	Aircraft structures, high-stress parts
7075-T73	T73	Lower strength, better flexibility, improved corrosion resistance	Cryogenic applications
7075-T7351	T7351	Very high strength, excellent low-temperature performance	Aerospace applications

Advantages of 7075 T651 Aluminum Alloy

The 7075 T651 aluminum alloy offers several advantages, making it a preferred choice in various industries:

High Strength: It is one of the strongest aluminum alloys available, making it ideal for applications requiring high strength-to-weight ratios.
Lightweight: Despite its strength, it remains lightweight, which is crucial for aerospace and automotive applications.
Corrosion Resistance: The alloy exhibits good resistance to corrosion, ensuring durability in harsh environments.
MaChinability: 7075 T651 aluminum is relatively easy to machine, allowing for precise manufacturing processes.

Applications of 7075 T651 Aluminum Alloy

7075 T651 aluminum alloy is widely used in various industries due to its exceptional properties. Some common applications include:
– Aerospace: Used in aircraft structures, wings, and fuselage components where strength and weight are critical.
– Automotive: Employed in high-performance racing cars and military vehicles for lightweight and strong components.
– Marine: Ideal for boat hulls and structures due to its corrosion resistance.
– Defense: Utilized in armor plating and military equipment for enhanced durability and strength.

Conclusion

In summary, 7075 T651 aluminum alloy is a versatile and high-performance material widely used in demanding applications. Its unique properties, including high strength, lightweight, and good corrosion resistance, make it a preferred choice in aerospace, automotive, and defense industries. Manufacturers like Hcaluminum, Chalco Aluminum, Southwest Aluminum, and Huawei Aluminum provide a range of products and services to meet the diverse needs of customers seeking high-quality aluminum solutions.

FAQs

1. What is the main alloying element in 7075 T651 aluminum?
The primary alloying element in 7075 T651 aluminum is zinc, which significantly enhances its strength.

2. How does the T651 temper affect the aluminum’s properties?
The T651 temper indicates that the aluminum has been solution heat-treated, artificially aged, and stress-relieved, resulting in improved strength and resistance to stress corrosion cracking.

3. What are the common applications of 7075 T651 aluminum?
Common applications include aerospace components, automotive parts, marine structures, and defense equipment.

4. Is 7075 T651 aluminum easy to machine?
Yes, 7075 T651 aluminum has fair maChinability, allowing for precise manufacturing processes.

5. How does 7075 T651 compare to other aluminum alloys?
7075 T651 is one of the strongest aluminum alloys, offering superior strength compared to other alloys like 6061 and 2024, making it suitable for high-stress applications.