What Is 7075-T651 Aluminum?
7075-T651 aluminum is produced through solution heat treatment, stress relieving by stretching, and artificial aging. The stress-relief process reduces internal residual stress, improving dimensional stability during machining.
Compared with T6, 7075-T651 aluminum plate sheet offers better flatness and reduced deformation, making it ideal for precision structural components.
Characteristics of 7075-T651 Aluminum Plate Sheet
High Strength with Improved Stability
7075-T651 maintains high tensile and yield strength while offering better performance in machining and large-size components.
Enhanced Dimensional Control
Stress relieving minimizes distortion, especially in thick plates and precision parts.
Processing of 7075-T651 Aluminum Plate Sheet
Solution heat treatment
Controlled quenching
Stress relieving through stretching (varies by product type)
Artificial aging
This process makes 7075-T651 aluminum especially suitable for aerospace and high-precision structural applications.
What Is 7075-T6511 Aluminum?
7075-T6511 aluminum is similar to T651 but is typically applied to extrusions and tubes. In addition to solution heat treatment, stress relieving, and aging, straightening is permitted, which distinguishes it from T6510.
Characteristics of 7075-T6511 Aluminum Plate Sheet
Very high mechanical strength
Good dimensional stability
Improved stress corrosion resistance compared to T6
Suitable for precision- and straightness-critical components
7075-T6511 Aluminum Processing Details
Solution heat treatment (same as T6 and T651)
Stress relieving through stretching
Extended artificial aging
Straightening after stretching
7075-T651 / T6511 Chemical Composition
Both tempers share the same alloy composition, with zinc as the primary strengthening element:
Zinc (Zn): 5.1–6.1%
Magnesium (Mg): 2.1–2.9%
Copper (Cu): 1.2–2.0%
Chromium (Cr): 0.18–0.28%
GNEE supplies materials conforming to GB, AMS, and EN standards.
7075 Aluminum Plate Sheet Sizes by GNEE
Thick Plate
Thickness: 4–260 mm
Width: 1200–3800 mm
Tempers: T651 / T7651 / T7351 / T73 / T73511
Thin Plate
Thickness: 0.5–4.0 mm
Width: 1000–2600 mm
Tempers: T6 / T651 / T7651
Mechanical Properties of 7075 Aluminum Plate Sheet
Depending on temper, 7075 aluminum provides:
Tensile strength up to 590 MPa
Yield strength up to 515 MPa
Elongation up to 15%
These values make it suitable for demanding structural applications.
7075-T651 vs 7075-T7651 Aluminum
7075-T651
Standard aging process
High strength and good dimensional stability
Widely used for plates, sheets, rods, and forgings
7075-T7651
Extended or optimized aging
Higher stress corrosion resistance
Used in more demanding aerospace and structural applications
7075-T6511 vs 7075-T73511 Aluminum
7075-T6511
High strength
Good straightness and dimensional accuracy
Suitable for precision extrusions
7075-T73511
Over-aged condition
Excellent stress corrosion resistance
Ideal for high-performance structural parts under harsh conditions
Common Questions About 7075 Aluminum Plate Sheet
Is 7075 aluminum stronger than 6061?
Yes, 7075 aluminum has significantly higher strength than 6061.
Is 7075 aluminum as strong as steel?
7075 aluminum offers very high strength but is generally not stronger than most steels.
Is 7075-T6 aluminum good?
Yes, it is highly valued for high-strength and aerospace applications.
What are the disadvantages of 7075 aluminum?
Lower corrosion resistance and more challenging machining compared to mid-strength alloys.
Why Choose GNEE for 7075 Aluminum Plate Sheet?
GNEE provides:
Full temper range: T6, T651, T6511, T7651, T73511
Large-size plates and thick sections
Custom cutting and small MOQ support
Stable quality for aerospace and industrial use
