7178 T651 Aluminum

7178-T651 aluminum alloy is a high-strength aluminum alloy that undergoes specific heat treatment and stress-relief processes. It is commonly used in applications requiring high fatigue strength and multiple stress cycles, such as aerospace and automotive industries.

7178-T651 aluminum alloy is a high-strength, good ductility, and fatigue-resistant alloy, suitable for complex environments with high-stress cycles, especially outstanding in aerospace and automotive fields. It gains excellent mechanical properties through specific heat treatment and stress-relief processes, meeting stringent engineering requirements. Under multiple loading and fatigue, its high fatigue resistance ensures reliable performance even after extended use.

7178 T651 Aluminum Treatment Conditions

• Solution Heat Treatment: The 7178 aluminum alloy is heated to a specific temperature, allowing the alloying elements to completely dissolve, achieving a uniform solid solution state.
• Stress Relief: The aluminum material is stretched by a certain amount (specific stretch amount depending on the type of forging, such as thin plates, sheets, rods, or forgings) to relieve internal stresses. This process helps improve the material's mechanical properties and prevents warping or deformation during subsequent processing.
• Artificial Aging: The 7178 aluminum alloy is held at a specific temperature for a period to enhance its strength and hardness. The aging process stabilizes the precipitates of the alloying elements, further improving the alloy's mechanical properties.

7178 T651 Aluminum Material Features

• High Fatigue Strength: 7178-T651 aluminum can withstand more stress cycles, making it highly suitable for applications that require long-term exposure to repeated loads.
• Better Ductility: Compared to other similar aluminum alloys, 7178-T651 offers better ductility, which helps improve formability and processing performance.
• Durability: Due to its excellent fatigue resistance, 7178-T651 aluminum is ideal for applications that require long-term durability and reliability.

7178 T651 Aluminum Mechanical Properties

• Ductility (Elongation at Fracture): Compared to other high-strength aluminum alloys, 7178-T651 aluminum exhibits higher ductility with a good elongation at fracture. Despite its high strength, it maintains good ductility, making it suitable for applications that require both high strength and a certain degree of flexibility.
• Fatigue Strength: 7178-T651 aluminum has excellent fatigue strength and can withstand more stress cycles, making it particularly suitable for high-fatigue demanding applications, such as aircraft wings and automotive chassis, which experience cyclic loads.
• Ultimate Tensile Strength: Although it possesses high strength, the ultimate tensile strength of 7178-T651 aluminum is slightly lower compared to certain other aluminum alloys, such as 7075-T6510. Nevertheless, its strength remains very high, sufficient for most applications requiring elevated strength.

7178 T651 Aluminum Applications

Application Areas

• Aerospace: Due to its high fatigue strength and good corrosion resistance, 7178-T651 aluminum is highly suitable for the aerospace industry, particularly in high-strength, fatigue-resistant applications such as aircraft structural components, engine parts, and landing gear.
• Automotive Industry: 7178-T651 aluminum also has extensive applications in the automotive industry, especially in automotive structural components, chassis, and engine parts that need to withstand high-stress cycles and fatigue loads, providing excellent durability and reliability.

Typical Applications

• Aircraft Structures: Used in high-load aircraft components such as fuselage, wings, tailplanes, and landing gear, which are exposed to prolonged vibrations.
• Automotive Industry: Suitable for engine parts, suspension systems, and chassis in high-performance vehicles, especially in racing and high-performance sports cars.
• Military and High-End Equipment: Plays a significant role in military aircraft, missile launchers, satellites, and other high-demand structural components.