7475 Aerospace Aluminum Forging
7475 aluminum alloy is known for its excellent mechanical properties, including high strength, toughness, and resistance to stress corrosion cracking. These characteristics make it an ideal material for applications that require reliability and performance in harsh conditions.
Characteristics of Forged Aluminum 7475
- 1. High Strength: 7475 aluminum alloy has exceptional strength, with tensile strength exceeding 570 MPa, making it suitable for structural applications under high loads.
- 2. Good Corrosion Resistance: Although the corrosion resistance of 7475 is not as good as that of some other aluminum alloys, its corrosion performance can be enhanced through proper surface treatments (such as anodizing).
- 3. Machinability: 7475 aluminum alloy has good machinability after heat treatment, making it suitable for processing into complex shapes through forging, extrusion, and other methods.
- 4. Heat Treatability: 7475 aluminum alloy can be further enhanced in its mechanical properties through heat treatment (such as aging treatment) to achieve optimal strength and toughness.
- 5. Low Density: As an aluminum alloy, 7475 has a low density, helping to reduce structural weight, making it suitable for applications in aerospace and other fields.
- 6. Weldability: The weldability of 7475 aluminum alloy is relatively poor, and welding is generally not recommended, or specialized methods need to be used for welding.
Aluminium Alloy 7475 Forgings Specification
| Aluminium 7475 Forgings Standards | ASTM B247, B247 |
| Aluminium 7475 Forgings Flat bar blocks | up to 27" width and 15, 000 lbs. |
| Aluminium 7475 Forgings Tempers | H14 |
| Aluminium 7475 Forgings Cylinders and sleeves | up to 50" maximum O.D. and 65" maximum length |
| Aluminium 7475 Forgings FiniDiscs and hubssh | up to 50" diameter and 20, 000 lbs. |
| Aluminium 7475 Forgings Delivery | 15 to 30 Working days From the Date of Purchase Order |
| Aluminium 7475 Forgings Origin | Indian, European, Germany, South Africa, Mexico, USA & Russian |
| Aluminium 7475 Forgings Test Certificate | EN 10204 3.1 Mill TC or Any 3rd party Inspection shall be Available. |
| Aluminium 7475 Forgings Packing & Shipping | Packing shall be SEA Worthy wooden packaging, with Fumigation as well as delivery of 7475 Alloy Strips, Foils & Coils can be given by air & Sea as per clients requirements. |
What is the composition of 7475?
| Chemical composition of 7475 alloy | |
| Si | 0.10 |
| Fe | 0.12 |
| Cu | 1.20-1.90 |
| Mn | 0.06 |
| Mg | 1.9-2.60 |
| Cr | 0.18-0.25 |
| Ni | - |
| Zn | 5.2-6.20 |
| Ti | 0.06 |
| Al | Remainder |
Aluminium Alloy 7475 Forgings Mechanical Properties
| Properties | Metric | Imperial |
| Elastic modulus | 70-80 GPa | 10152-11603 ksi |
| Poisson's ratio | 0.33 | 0.33 |
Aluminium 7475 Forgings Applications
Aluminum 7475 alloy is mainly applied in the aerospace field for components that require high strength, lightweight, and good machinability.
1. Aircraft Structural Components
- Fuselage and Wing Structures: 7475 alloy is commonly used in the fuselage frames and wing structures of aircraft, which need to withstand high loads and pressures.
- Reinforcements and Ribs: Within the wings and fuselage of an aircraft, 7475 alloy can be used to manufacture reinforcements and ribs to enhance the strength and rigidity of the structure.
2. Aircraft Parts
- Landing Gear Components: Due to its excellent strength and toughness, 7475 alloy is suitable for manufacturing critical components of landing gear, capable of withstanding impact forces during landing.
- Engine Mounts: In the supports and connecting parts of aircraft engines, 7475 alloy provides the necessary strength and stability.
3. Supporting Structures for Composites
In some high-performance composite applications, 7475 alloy can serve as a supporting structure, providing the necessary strength and rigidity while maintaining overall weight reduction.
4. High-Strength Fasteners
7475 aluminum alloy can be used to manufacture various fasteners, such as bolts and nuts, due to its high strength and lightweight, making it suitable for aerospace applications.
5. Special Purpose Components
In certain specialized applications, 7475 alloy can be used to manufacture components that are heat-resistant or corrosion-resistant, meeting specific environmental requirements.
What is the difference between 7475 and 7075?
Both 7475 and 7075 are high-strength aluminum alloys; however, 7475 typically excels over 7075 in strength and toughness, especially after heat treatment. Both alloys are primarily used in aerospace and other applications requiring high strength.
| Characteristics | 7075 Aluminum Alloy | 7475 Aluminum Alloy |
| Main Alloying Elements | Zinc (5.1-6.1%), Magnesium (2.1-2.9%), Copper (1.2-2.0%), Chromium (0.18-0.28%) | Zinc (4.5-5.5%), Manganese (0.2-0.8%), Copper (below 0.3%), Magnesium (2.5-3.5%) |
| Strength | High strength, suitable for bearing large loads | Higher strength, particularly superior after heat treatment |
| Corrosion Resistance | Good | Good |
| Weldability | Poor | Poor |
| Applications | Aircraft fuselage, wing beams, high-strength components | Aircraft structures, long rods, load-bearing components |
| Heat Treatment | Strength increased through heat treatment | Better fatigue resistance after heat treatment |
Popular Aerospace Aluminum Forgings from Haomei
Haomei Aluminum offers alloys including 2014, 2024, 2124, 2219, 2618, 2619, 3003, 5083, 6061, 7049, 7050, 7075, 7079, 7149, 7150, and 7175 tempers, available upon request, compliant with all AMS, ASTM, Boeing commercial, and Boeing military specifications.
| TYPE | SPECIFICATIONS |
| 2014 | AMS4133, 4134, 4314, AMS-A-22771 |
| 2024 | AMS-QQ-A-367 |
| 2219 | AMS4143, 4144, AMS-QQ-A-367, AMS-A-22771 |
| 2618 | AMS4132, AMS-QQ-A-367, AMS-A-22771 |
| 6061 | AMS4127, 4146, AMS-QQ-A-367, AMS-A-22771 |
| 7049 | AMS4111, AMS-QQ-A-367, AMS-A-22771 |
| 7050 | AMS4107, 4108, AMS-A-22771 |
| 7075 | AMS4126, 4131, 4141, 4147, AMS-QQ-A-367 |
| 7079 | AMS-QQ-A-367 |
| 7150 | AMS-A-22771 |
| 7175 | AMS4148, 4149, 4179, AMS-A-22771 |
What is the strongest forged aluminum?
Among aluminum alloys, the strongest forged aluminum alloy is generally considered to be 7075 aluminum alloy, especially after proper heat treatment. 7075 aluminum alloy is primarily alloyed with zinc, offering extremely high strength and good corrosion resistance. It is widely used in aerospace, military applications, and high-performance sports equipment.
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