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Typical Mechanical Properties of 7075 Aluminum Round Bar

Dec 31, 2025

7075 (T651 / T6511) Aluminum Round Bar | GNEE

7075 aluminum round bar is one of the highest-strength aluminum alloys available, offering an outstanding strength-to-weight ratio and dependable performance in high-load and high-stress environments. It is often compared with 2024 aluminum, but 7075 is preferred when maximum strength and durability are required.

At GNEE, we supply premium-quality 7075-T651 and 7075-T6511 aluminum round bars engineered to meet the strict demands of aerospace, defense, and precision engineering industries.

Alloy Characteristics and Composition

7075 aluminum is an aluminum-zinc-magnesium-copper alloy, containing approximately 1–8% zinc, with smaller additions of magnesium, copper, and chromium. This alloy system is precipitation-hardened, producing extremely high mechanical strength while maintaining good toughness and fatigue resistance.

Thanks to this balanced combination of properties, 7075 aluminum round bar performs reliably in applications where repeated loading, vibration, and mechanical stress are present.

 

7075 Aluminum Round Bar Product Availability

GNEE offers 7075 aluminum round bars in multiple production forms to suit different size and machining requirements:

🔹 7075-T651 Cold Finished Round Bar

Diameter range: 1/4 inch to 2 inches

Cold finishing ensures tight dimensional tolerances

Smooth surface finish for precision machining

🔹 7075-T6511 Extruded Round Bar

Diameters: 2 inches and above

Ideal for larger cross-section components

Combines high strength with good machinability

 

Typical Mechanical Properties of 7075 Aluminum Round Bar

Tensile Strength: ~83,000 psi

Yield Strength: ~73,000 psi

Elongation: ~11% (2 in.)

Brinell Hardness: ~150

Density: 0.102 lb/in³

These properties make 7075 aluminum round bar suitable for demanding structural and mechanical applications where weight reduction and strength are both critical.

 

Common Applications of 7075 Aluminum Round Bar

Due to its exceptional mechanical performance, 7075 aluminum round bar is widely used in:

Aerospace and aircraft structural components

Defense and military equipment

High-performance shafts and gears

Precision tooling, jigs, and fixtures

Mechanical parts requiring maximum strength with reduced weight

Why Choose GNEE for 7075 Aluminum Round Bar?

As a professional aluminum supplier, GNEE provides:

Stable and consistent material quality

Multiple tempers and sizes in stock

Precision processing and fast delivery

Technical support for material selection

Whether you need cold-finished or extruded 7075 aluminum round bar, GNEE delivers reliable solutions tailored to your project requirements.

 

Contact GNEE today for specifications, stock availability, or a competitive quotation on 7075 aluminum round bars.

7075 (T651 / T6511) Aluminum Round Bar