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AMS 4126 7075 -T6 Aluminum Alloy Forings
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7075 Aluminum Forgings Introduction
7075 Aluminum Forgings are high-strength aluminum alloys that are perfect for use in demanding applications due to their excellent combination of strength and toughness. They are forged by a hot forming process that enhances its physical properties and results in excellent mechanical strength and corrosion resistance. In this article, we will explore the various attributes of 7075 aluminum forgings, including their chemical composition, mechanical properties, and applications.
Chemical Composition of 7075 Aluminum Forgings
The chemical composition of 7075 aluminum forgings includes the following elements:
- Zinc (Zn) - 5.6% - 6.1%
- Magnesium (Mg) - 2.5% - 2.9%
- Copper (Cu) - 1.6% - 2.0%
- Chromium (Cr) - 0.18% - 0.28%
- Iron (Fe) - 0.5%
- Silicon (Si) - 0.4%
- Manganese (Mn) - 0.3%
- Titanium (Ti) - 0.2%
- Aluminum (Al) - Balance
The addition of magnesium, copper, and zinc provides high strength and toughness, while the chromium and titanium content enhances the forgings' resistance to corrosion.
Mechanical Properties of 7075 Aluminum Forgings
The mechanical properties of 7075 aluminum forgings are as follows:
- Tensile Strength: 83 ksi (572 MPa)
- Yield Strength: 73 ksi (503 MPa)
- Elongation: 11%
- Brinell Hardness: 150
The above properties are taken from a T651 temper, which is strengthened through heat treatment. 7075 aluminum forgings can be strengthened further through cold working, including rolling, forging, or extrusion.
Applications of 7075 Aluminum Forgings
Due to its high strength-to-density ratio, 7075 aluminum forgings are used in various applications that require strength and toughness in challenging environments. Some of the applications of 7075 aluminum forgings include:
- Aerospace: 7075 aluminum forgings are used in airplane fuselage frames, wings, and landing gear due to their high strength-to-weight ratio and excellent stress corrosion cracking resistance.
- Military: 7075 aluminum forgings are used in military applications, such as missile components, gun parts, and armored vehicles, due to their high strength, toughness, and low density.
- Automotive: 7075 aluminum forgings are used in the automotive sector for high-performance components such as suspension parts, engine connecting rods, and drive shafts.
- Sports equipment: 7075 aluminum forgings are used in sports equipment such as bicycle frames, snowboard bindings, and mountaineering gear due to their high strength and light weight.
Conclusion
With its high strength, toughness, corrosion resistance, and low density, 7075 aluminum forgings are ideal for use in demanding applications. In addition to its aerospace and military applications, 7075 aluminum forgings are used in automotive and sports equipment, making it a versatile material that can withstand a range of environments and conditions.
7075 Aluminum Forgings Introduction
7075 Aluminum Forgings are high-strength aluminum alloys that are perfect for use in demanding applications due to their excellent combination of strength and toughness. They are forged by a hot forming process that enhances its physical properties and results in excellent mechanical strength and corrosion resistance. In this article, we will explore the various attributes of 7075 aluminum forgings, including their chemical composition, mechanical properties, and applications.
Chemical Composition of 7075 Aluminum Forgings
The chemical composition of 7075 aluminum forgings includes the following elements:
- Zinc (Zn) - 5.6% - 6.1%
- Magnesium (Mg) - 2.5% - 2.9%
- Copper (Cu) - 1.6% - 2.0%
- Chromium (Cr) - 0.18% - 0.28%
- Iron (Fe) - 0.5%
- Silicon (Si) - 0.4%
- Manganese (Mn) - 0.3%
- Titanium (Ti) - 0.2%
- Aluminum (Al) - Balance
The addition of magnesium, copper, and zinc provides high strength and toughness, while the chromium and titanium content enhances the forgings' resistance to corrosion.
Mechanical Properties of 7075 Aluminum Forgings
The mechanical properties of 7075 aluminum forgings are as follows:
- Tensile Strength: 83 ksi (572 MPa)
- Yield Strength: 73 ksi (503 MPa)
- Elongation: 11%
- Brinell Hardness: 150
The above properties are taken from a T651 temper, which is strengthened through heat treatment. 7075 aluminum forgings can be strengthened further through cold working, including rolling, forging, or extrusion.
Applications of 7075 Aluminum Forgings
Due to its high strength-to-density ratio, 7075 aluminum forgings are used in various applications that require strength and toughness in challenging environments. Some of the applications of 7075 aluminum forgings include:
- Aerospace: 7075 aluminum forgings are used in airplane fuselage frames, wings, and landing gear due to their high strength-to-weight ratio and excellent stress corrosion cracking resistance.
- Military: 7075 aluminum forgings are used in military applications, such as missile components, gun parts, and armored vehicles, due to their high strength, toughness, and low density.
- Automotive: 7075 aluminum forgings are used in the automotive sector for high-performance components such as suspension parts, engine connecting rods, and drive shafts.
- Sports equipment: 7075 aluminum forgings are used in sports equipment such as bicycle frames, snowboard bindings, and mountaineering gear due to their high strength and light weight.
Conclusion
With its high strength, toughness, corrosion resistance, and low density, 7075 aluminum forgings are ideal for use in demanding applications. In addition to its aerospace and military applications, 7075 aluminum forgings are used in automotive and sports equipment, making it a versatile material that can withstand a range of environments and conditions.
