Aluminum Alloys in the Aerospace Industry
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Aluminum Alloys in the Aerospace Industry

As a relatively mature lightweight and high-strength alloy material, aluminum alloy is widely used in aerospace. Aluminum alloy material is generally used as a structural material, which has higher specific strength and better processing performance than steel.

In the aerospace field, aluminum alloy materials with high strength, high toughness and strong corrosion resistance are mainly developed to meet the harsh operating conditions of aerospace. The widely used alloy series are 2000 and 7000 aluminum alloys and Al-Li alloy materials.

The advantages of aluminum alloys for aerospace applications

The advantages of Aluminium Alloys for Aerospace Applications

The application of aluminum sheet in aerospace

High-strength aluminum alloy sheets with excellent performance are mainly used in the aerospace field. Because aerospace products have extremely high requirements for weight reduction, aluminum alloy sheets with high specific strength are the preferred materials for aerospace. Among Aerospace aluminum sheets, 7000 series high-strength and high-toughness aluminum alloy sheets and 2000 series medium-strength and high-toughness aluminum alloy sheets play an important role.

The specifications of aluminum sheets for aerospace applications

2000 series of aerospace aluminum alloys

2017 T4 2024-T3 2224-T3511 2124-T851, 2324-T39 2024-T6, 2024-T8 2124-T851, 2224-T39 2524-T3

7000 series of aluminum alloy for aircraft

7075-T6 7178-T6 7079-T6 7075-T73 7075-T76 7475 7075-T74 7070-T74

7150-T6 7150-T61 7050-T74, 7050-T76 7150-T77 7055-T77

7475-T73, 7475-T76, 7075-T24, 7050-T7451, 7050-T7452, 7010-T74, and 7150-T61,

7150-T7751, 7150-T7751, 7055-T7751, 7055-T77511, 2197-T851, 7085-T7452 /T652

The Specifications of Aluminum Sheets for Aerospace Applications

Production thickness: 0.3mm-200mm

Production width: 1000mm-3800mm

Production length: 2000mm-20000mm

Production implementation standards: GB/T3880, GJB1541, GBn167, GJB2053, GJB2662, ASTMB209, ASME SB-209, EN 485, etc., or according to customer requirements.

Application of aerospace aluminum plate in different parts of aircraft

2024 Aerospace Grade Aluminum plate

2024 Aerospace Grade Aluminum plate is a typical alloy in hard aluminum. It has good comprehensive properties, high strength, and certain heat resistance. It can be used for parts that work below 150 ° C. The heat treatment strengthening effect is remarkable, and the corrosion resistance is poor. Aluminum cladding can improve the corrosion resistance.

Temper: O, T3, T361, T4, T72, T81, T861

Typical use: aircraft structure (skin, frame, rib beam, bulkhead, etc.)

2124 Aircraft Grade Aluminum Thick Plate

It is a highly purified alloy of 2024 aluminum alloy. Its strength, plasticity and fracture toughness are better than that of 2024 aluminum alloy, and its SCC performance is similar to that of 2024 aluminum alloy.

Temper: T351, T851

Typical uses: aircraft structural parts, wings, fuselage, gun beams, fuselage skins, central wing skins, air intakes, skins and fairings, etc.

2324 T39 Aircraft Aerospace Grade Aluminum sheet plate

With high strength and high fracture toughness, both thick and thin plates can be produced.

Typical use: aircraft structural parts

2524 T3 Aircraft Grade Aluminum Sheet Plate

When the strength and other properties are comparable to 2024-T3 aluminum alloy, the fatigue strength of the alloy is increased by 10% and the fracture toughness is increased by 20%.

Typical use: aircraft skin

2219 Aerospace Grade Aluminum sheet plate

It has high room temperature strength and high temperature durable strength, good thermoplasticity, no extrusion effect, weldable, poor. corrosion resistance

Temper: T31, T37, T87, T851, T3511

Typical use: aircraft skin and structural parts

7150 T7751, 7055 T7751 Aluminum alloy pre-stretched thick plate

They have high strength and corrosion resistance and are applied to the upper siding of the upper wing.

7075 T7651 Aerospace Aluminum Thick Plate

It has high strength, good toughness, stress resistance and exfoliation corrosion resistance. It belongs to aluminum-zinc-magnesium-copper superhard aluminum alloy.

Typical uses: aircraft frames, integral panels, landing gear, skins, etc.

7055 T77 T7651 Super Hard Aerospace Aluminum Plate

It is the alloy with the highest strength among the deformed aluminum alloys at present. The strength of 7055-T77 alloy sheet is 10% higher than that of 7150 and 30% higher than that of 7075, and it has better fracture toughness and strong resistance to fatigue crack growth.

Typical uses: upper skin on wings, horizontal stabilizer, dragon skeleton, seat rails and cargo rails, etc.

7050 Aluminum Alloy Sheet Plate

It has the characteristics of high strength, good fracture toughness and rehabilitation performance, low quenching sensitivity, etc.

Temper: T7651, T7451, T73511, T76511, T7452

Typical uses: Aircraft fuselage frames, wing skins, bulkheads, stringers, stiffeners, ribs, brackets, landing gear supports, seat rails.

Application of Aerospace aluminum plate in different parts of aircraft

Aerospace aluminum alloy in different parts of aircraft

7150 Aerospace Aluminum Plate

It has the characteristics of high strength, excellent corrosion resistance, excellent fracture toughness and fatigue resistance.

Temper: T651, T7751, T6511, T77511, T77

Typical uses: aircraft upper wing structure, body plate beam flange, upper outer plate main wing stringer, fuselage reinforcement.

7175 Aircraft Aerospace Grade Aluminum Sheet Plate

It has the characteristics of high strength, good corrosion resistance, excellent fracture toughness, etc.

Temper: T74, T7452, T76511

Typical uses: aircraft outer spar, main landing gear, nose landing gear action barrel, vertical tail joint.

7475 Aircraft Aerospace Grade Aluminum Sheet Plate

It has the characteristics of high strength, high toughness, good fatigue resistance and corrosion resistance, with good comprehensive properties.

Product and temper: T61, T761, T651, T7651, T7351

Typical uses: aircraft fuselage, wing skins, central wing structures, spars, bulkheads, bulkheads, helicopter decks, landing gear doors.

The application of aluminum forgings in aerospace

Aluminum forgings have a wide range of applications in the aviation industry, and are mainly used to manufacture key components in aircraft that are subjected to alternating loads and concentrated loads. For example, it is used to manufacture the main load-bearing parts such as aircraft fuselage structure, engine rotating parts and landing gear.

Aluminum forgings are also widely used in the aerospace industry. For example, the aluminum forgings used in spacecraft are mainly forged rings, rims, spars and machine bases.

The Application of Aluminum Forgings in Aerospace

The characteristics of aircraft aerospace grade aluminum forgings

The main applications of aircraft aerospace grade aluminum forgings

2024 T6 2124 T6 2424 T6 High Strength Aerospace Grade Aluminum Forgings

It is a typical hard aluminum alloy with good forgeability, good plasticity and poor corrosion resistance.

Typical use: aircraft parts

7075 T6 7175 T6 7475 T6 High Strength Aerospace Grade Aluminum Forgings

It is a kind of super hard forged alloy, resistant to stress corrosion and poor crack resistance.

Typical uses: aircraft parts, aerospace materials

7075 T73 7475 T73 High Strength Aircraft Aerospace Grade Aluminum Forgings

The stress corrosion cracking resistance is improved by proper aging treatment, and the strength is lower than T6.

Typical use: aircraft parts

7175 T736 High Strength Aircraft Aerospace Grade Aluminum Forgings

It is a new alloy whose strength, toughness and stress corrosion crack resistance are better than 7075 T6.

Typical use: aircraft parts

7050 T73 7150 T73 7055 T73 7155 T79 7068 T77 High Strength Aircraft Grade Aluminum Forgings

A series of new alloys with high strength, high toughness and high resistance to stress corrosion cracking, the comprehensive performance is better than 7075 and 7475-T73.

Typical use: used for high-stress parts, especially key parts of large aircraft and aerospace materials and important structural materials.

7085 Aircraft Aerospace Grade Aluminum forgings

High-strength forged aluminum alloy, high comprehensive performance, suitable for large-section products.

Temper: T7651

Typical Uses: Stringers

2219 T6 Heat-resistant Aircraft Grade Aluminum forgings

It maintains excellent strength and creep resistance at high temperature, and has good welding performance.

Typical use: aircraft, rocket parts

2618 T6 Heat-resistant Aircraft Grade Aluminum forgings

It has the excellent high temperature strength.

Typical uses: pistons, supercharger fans, rubber molds, general heat-resistant parts.

The Main Applications of Aircraft Aerospace Grade Aluminum Forgings

4032 T6 Heat Resistant Aluminum Alloy Forgings

It has high strength at medium temperature, small thermal expansion coefficient and good wear resistance.

Typical uses: Pistons and wear parts

6061 T6 6082 T6 6070 T6 6013 T6 Corrosion Resistant Aircraft Grade Aluminum Forgings

It has medium strength, corrosion resistance, fatigue resistance and comprehensive performance.

Typical Use: Aerospace Components

The application of al-li alloy materials in aerospace

The introduction of al-li alloy materials

Due to its outstanding low density, excellent comprehensive properties and broad application prospects, AL-Li alloy materials have gradually become a new generation of high-performance aluminum alloys that are used in parallel with 2000 and 7000 series alloys in aerospace.

Al-Li Alloy

The specifications of aluminum lithium alloy materials

Main alloys: 1420, 2090, 2091, 2195, 2198, etc.

The most widely used alloy grades are 2195-T8X, 2055-T84, 2098-T8X, 2099, etc.

The density of such alloys is generally between 2.6~2.7 g/cm3.

The material strength reaches 600 MPa or higher, and the compressive modulus is 75~79 GPa,

The specific stiffness is between 26~30 GPa ⋅ cm3/g.

The characteristics of Al-Li alloy materials

The main application components of AL-Li alloy materials

The front fuselage skin, nose skin, middle fuselage skin, and middle rear fuselage skin are made of 2198-T8 Aluminum lithium alloy thick plate and Al-Li-S4-T8 aluminum-lithium alloy thick plate manufacture.

The main alloy grades involved are 2060-T8E30, 2198-T8, 2199-T8E74, etc.

The front fuselage girders, nose girders, middle fuselage girders, floor beams, pillars, seat rails are made of 2196-T8511/2099-T83 aluminum-lithium alloy extrusion materials, etc.

High-strength and toughened wing panels or internal load-bearing parts, the main alloy grades involved are 2050-T84, 2055-T8X, 2199-T86, 2060-T8X, etc.

The girders of the middle and rear fuselage are made of 2196-T8511/2099-T83 aluminum-lithium alloy extrusion materials, and the materials used for floor beams and pillars are 2099-T83, 2196-T8511 aluminum-lithium alloy extrusion materials.

Low-density guide rails or load-bearing parts, the alloy grades involved are 2196-T8X, 2099-T81, 1420, 2055, etc.

The Main Application Components of AL-Li Alloy Materials

The application of aluminum profiles in aerospace

Introduction to the Application of Aluminum Profiles in Aerospace

Aluminum profiles can be widely used in the aerospace field as large-scale structural bearing parts. Such as aircraft fuselage frames, stringers, stiffeners, ribs, bracket bulkheads, etc.

The Application of Aluminum Profiles in Aerospace

The main application of aluminum profiles in aerospace

2024 Aircraft Aerospace Grade Aluminum profile

A typical alloy in duralumin, with good comprehensive properties.

Typical use: aircraft frame, rib beam, bulkhead, etc.

7050 Aircraft Aerospace Grade Aluminum profile

High strength, good fracture toughness and rehabilitation performance, low quenching sensitivity.

Typical uses: Aircraft fuselage frames, stringers, stiffeners, ribs, brackets, landing gear support parts, seat rails, etc.

7150 Aircraft Aerospace Grade Aluminum profile

High strength, excellent corrosion resistance, excellent fracture toughness and fatigue resistance.

Typical uses: Wing spars, fuselage stringers, fuselage frames, bulkheads, upper wing stringers, ribs and spars, etc.

7150 Aircraft Aerospace Grade Aluminum profile

7175 Aircraft Aerospace Grade Aluminum profile

High strength, good corrosion resistance, excellent fracture toughness.

Typical use: aircraft outer spar, etc.

7475 Aircraft Aerospace Grade Aluminum profile

High strength, high toughness, good fatigue resistance and corrosion resistance, with good comprehensive properties.

Typical use: aircraft fuselage, central wing structure, wing spars, etc.

The application of aluminum foil in aerospace

Honeycomb aluminum structures are fabricated from aluminum foils and have been successfully used in aircraft manufacturing.

Aluminum foil used in aerospace:

5052 aluminum foil

Temper: O, H14, H16, H18, H22, H24

Thickness: 0.03-0.2mm

Width: 100-1700mm

Typical use: honeycomb aluminum structure

3003 aluminum foil

Temper: O, H14, H16, H18, H22, H24

Thickness: 0.006-0.2mm

Width: 100-1700mm

Typical use: honeycomb aluminum structure

The Application of Aluminum Foil in Aerospace

The application of aluminum foam in aerospace

Introduction of foam aluminum

Aluminum foam is composed of a small amount of aluminum or aluminum alloy metal skeleton and a large number of pores, and is a new material with macroscopic symmetry breaking.

The performance characteristics of foam aluminum

The versatility of the above properties is compatible.

The Performance Characteristics of Foam Aluminum

The application of aluminum foam in aerospace

The Application of Aluminum Foam in Aerospace

Why choose Chalco?

As an Aircraft Aerospace Grade Aluminum supplier, Chalco provides superior quality aerospace materials, the best technical service in the market, and has deep knowledge of how to support customers in meeting future challenges.

We have a complete set of domestic advanced aerospace materials research and development, testing and analysis instruments, which guarantee the efficiency of new product research and development and accelerate the transformation of scientific and technological achievements. In addition, our R&D & Innovation and Validation capabilities can help enhance our customers' competitiveness by saving time and costs in new product development and marketing.

We have passed the AS9100 certification required by the aviation industry, which provides a strong guarantee for the quality of the aerospace materials produced by our company.

The Chalco brand stands for quality, delivery and a strong reputation. With leading technology and globally competitive products, we can continue to develop together with our customers in the future.

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