Mechanical Properties of 7075-T651 Aluminum Plate

7075-T651 Aluminum Plate-One of the Strongest Aluminum Alloys

7075-T651 aluminum plate is widely recognized as one of the strongest aluminum alloys available today. It offers outstanding mechanical performance combined with reliable corrosion resistance, making it an ideal material for demanding structural applications.
As a professional aluminum plate supplier, GNEE provides high-quality 7075-T651 aluminum plates, sourced directly from mills and processed to precise customer specifications.

GNEE supplies precision-machined, machine-ready aluminum blanks that can be transferred directly from receiving into CNC machining centers, significantly reducing preparation time and overall manufacturing costs.

Chemical Composition and Strength Mechanism of 7075-T651 Aluminum Plate

The primary alloying element in 7075 aluminum alloy is zinc, accounting for approximately 1%–8% of the total composition. The combination of zinc with magnesium and copper allows the alloy to achieve precipitation hardening, resulting in strength levels comparable to certain steels while maintaining a much lower density.

The T651 temper indicates that the material has undergone:

Solution heat treatment

Controlled stretching to relieve internal stress

Artificial aging to reach peak mechanical strength

This process ensures excellent dimensional stability, reduced residual stress, and immediate maximum strength after processing.

7075-T651 aluminum plate delivers an excellent balance of high strength and practical machinability. Its performance characteristics make it particularly suitable for highly stressed components.

Key mechanical features include:

High tensile and yield strength

Good fatigue resistance

Fair machinability for high-strength alloy

Reliable corrosion resistance for structural use

These properties allow 7075-T651 to perform reliably in applications where both strength and precision are critical.

Applications of 7075-T651 Aluminum Plate

Due to its exceptional strength-to-weight ratio, 7075-T651 aluminum plate is widely used in industries requiring maximum structural performance, including :

Aerospace components

Aircraft frame structures

Highly stressed aircraft and aerospace parts

High-load tooling and structural components

Its consistent performance under stress makes it a preferred material in aviation and other advanced engineering fields.

7075-aluminum

Chemical Composition Limits of 7075 Aluminum Alloy (WT%)

Silicon: ≤ 0.4%

Iron: ≤ 0.5%

Copper: 1.2–2.0%

Manganese: ≤ 0.3%

Magnesium: 2.1–2.9%

Chromium: 0.18–0.28%

Zinc: 5.1–6.1%

Titanium: ≤ 0.2%

Others (each): ≤ 0.05%

Others (total): ≤ 0.15%

Balance: Aluminum

Typical Mechanical Properties of 7075-T651 Aluminum Plate

Tensile Strength: 73–83 KSI

Yield Strength: 63–73 KSI

Elongation: 11%–13%

These values highlight why 7075-T651 aluminum plate is chosen for applications requiring exceptional load-bearing capacity.

Precision Processing and Custom Solutions from GNEE

GNEE specializes in processing 7075-T651 aluminum plates to exact customer requirements. Our value-added services include precision cutting, thickness control, and tight-tolerance machining support.

In addition, GNEE also supplies 6061-T651 aluminum plates processed to the same high standards, providing customers with flexible material options for both high-strength and general-purpose applications.