7178 Aerospace Aluminum: High-Strength and Tough

7178 aerospace aluminum is a high-strength material that is commonly used in the aerospace industry for its excellent strength-to-weight ratio, toughness, and resistance to stress corrosion cracking. It is ideal for use in applications where strength and durability are critical factors, such as aircraft, spacecraft, and other vehicles.

Product Features

High Strength: 7178 aluminum has a tensile strength of 615 MPa and a yield strength of 570 MPa, making it one of the strongest aluminum alloys available.
Toughness: This alloy has excellent toughness, making it resistant to fracture and fatigue.

Resistance to Stress Corrosion Cracking: 7178 aluminum has good resistance to stress corrosion cracking, which makes it a durable material for use in harsh environments.
Weldability: This alloy is easily weldable, making it ideal for use in applications that require welding.

Applications

7178 aerospace aluminum is used in a wide range of aerospace applications, including:
Aircraft structures
Wing skins and spars
Fuselage frames
Landing gear components
High-strength fittings
Specifications
AMS 4148 standard
Available in sheet, plate, and extrusion forms
Thicknesses range from 0.016 inches to 6 inches
Widths range from 24 inches to 72 inches
Lengths range from 48 inches to 144 inches

Ordering Information

We offer 7178 aerospace aluminum in sheet, plate, and extrusion forms, and in a range of sizes and thicknesses. Our aluminum products are manufactured to meet the highest industry standards and can be customized to meet your specific needs.

To place an order or to learn more about our 7178 aerospace aluminum products, please contact us at (310) 538-1377. Our knowledgeable sales team is available to answer your questions and help you find the right material for your application.

Our Value Add Services

At AAA Air Support, we go beyond supplying aerospace-grade metals. Here’s how we deliver exceptional value to meet your specific needs.

Precision Cut-to-Size and Shearing Capabilities

Using advanced equipment, we provide custom cut-to-size services for aircraft extrusion aluminum and other metals. Our precision ensures that each piece aligns perfectly with your design, maintaining the highest quality standards.

Reliable Just-in-Time Delivery

When time is critical, we’ve got you covered. Our robustly maintained inventory allows us to meet Just-In-Time (JIT) delivery requirements, ensuring your production schedules stay on track without disruptions.

Competitive Value Pricing

Your budget matters which is why we prioritize offering highly competitive pricing without compromising quality. At AAA Air Support, delivering customer-focused value is our top priority.

Proactive Supply Chain Management

Our deep industry expertise allows us to integrate demand forecasting with supply planning. This forward-thinking approach guarantees precise accuracy on having the materials you need, exactly when expected.

Quality and Safety Assurance

We are committed to the safety and quality of our products because lives depend on them. By proactively addressing risks, we consistently meet and exceed the stringent standards of our quality system within the aerospace industry.

Flexible Stocking Solutions

Our tailored stocking programs are designed to support your project requirements. From managing inventory to producing and maintaining specialized components, we streamline the process to support your projects seamlessly.

Partner with AAA Air Support for unparalleled expertise, reliability, and value in aerospace metals.

What Our Customers Say

Thanks.. - You rock as always.

TW Metals

You have performed miracles for me this past year and I wanted to thank you!

Spirit AeroSystems

Thank you all for working this Hot AOG. You have made the shop very happy today.

The Boeing Company

You guys do an awesome job and we appreciate you!

Aviation Metals

The service is excellent; we have no complaints about it!

Brico Engineering Co.

You folks are just wonderful! You are always so great with service and time. It is truly appreciated.

Continental Steel & Tube Co

If we check your stock availability/price on the website then I would place an order to AAA immediately, thanks!

EGAT

AAA customer service is excellent.

Expanded Rubber & Plastics Corp.

We are satisfied with your service, appreciate that you always give us updates and shipping information.

JAL Engineering Co., Ltd

Keep up with great customer service, quality, and competitive pricing

LMI Sonaca

Latest News

How Electric Aircraft Are Shaping the Future of Aviation

Apr 9, 2026

For more than a century, aviation has been defined by two constants: the power of combustion engines and the continual pressure to operate more efficiently. The earliest attempts tried to incorporate steam power, but this proved too unwieldy. Of course, the solution...

The Real Cost of Non-Certified Aerospace Parts: Compliance & Safety

Feb 20, 2026

In aerospace manufacturing and maintenance, there is little margin for error. Every component installed on an aircraft must meet strict regulatory, safety, and performance standards. Yet despite this reality, non-certified aerospace parts still find their way into...

Inconel Alloys for Aerospace Applications

Jan 21, 2026

Modern aerospace systems operate in environments that push materials to their absolute limits. Turbine engines spin at extraordinary RPMs, exhaust systems endure continuous thermal cycling, and structural components must maintain integrity under intense mechanical and...