7020 Aluminum Bar – High-Strength Aerospace-Grade Aluminum Alloy

Overview:
The 7020 aluminum bar is a high-strength, heat-treatable aluminum alloy in the 7XXX series, primarily composed of zinc with minor amounts of magnesium and copper. Renowned for its superior mechanical properties, excellent corrosion resistance, and good fatigue strength, 7020 aluminum bars are widely used in aerospace, transportation, and high-performance structural applications.

Key Features:

• High Strength: Comparable to 7075 alloy, providing excellent load-bearing capacity for demanding applications.

• Good Corrosion Resistance: Suitable for outdoor and marine environments with proper surface treatment.

• Excellent Fatigue Performance: Ideal for structural components subjected to repeated stress.

• Heat-Treatable Alloy: Can achieve enhanced mechanical properties through T6 or T651 temper treatments.

• Machinable & Weldable: Supports a variety of fabrication processes, including CNC machining, welding, and anodizing.

Chemical Composition (Typical %):

• Zinc (Zn): 5.6–6.8%

• Magnesium (Mg): 2.1–2.6%

• Copper (Cu): 1.0–2.0%

• Chromium (Cr): 0.18–0.25%

• Aluminum (Al): Balance

Mechanical Properties (T6 Temper):

• Ultimate Tensile Strength: 480–540 MPa

• Yield Strength: 440–500 MPa

• Elongation at Break: 8–12%

• Brinell Hardness: 150–170 HB

Applications:

• Aerospace components such as fuselage frames, wing spars, and landing gear supports

• High-performance automotive parts

• Railway and transportation structural components

• Military and defense equipment

• Heavy-duty machinery requiring lightweight, high-strength materials

Advantages of Choosing 7020 Aluminum Bar:

1. Lightweight, high-strength solution for structural applications.

2. Superior corrosion and fatigue resistance, extending component lifespan.

3. Versatile for machining, forming, and surface finishing processes.

4. Reliable performance in both industrial and high-precision applications.

Available Sizes and Tolerances:

• Diameter: 20 mm – 400 mm (custom sizes available)

• Length: 1 m – 12 m (can be cut to order)

• Tolerances: ±0.05 mm (standard)

Surface Treatment Options:

• Anodized (clear, black, or custom colors)

• Polished or brushed finish

• Protective coating for enhanced corrosion resistance

Stock & Delivery:
We maintain abundant stock of 7020 aluminum bars to ensure prompt delivery for large-scale projects and urgent orders.

Why Buy From Us:
With years of experience supplying high-quality aluminum products globally, we ensure premium material quality, strict inspection standards, and competitive pricing to meet your project requirements.

Aluminum Production Process