In the high-end manufacturing and precision engineering sectors, aluminum alloys have become irreplaceable structural materials due to their exceptional lightweight and high-strength properties. Among them, 7075 T652 forged aluminum bar stands out as a top-tier high strength aluminum alloy product, belonging to the Al-Zn-Mg-Cu series of ultra-high strength aluminum alloys. It is widely recognized in aerospace, military equipment, precision machinery and other high-demand industries for its outstanding mechanical properties and dimensional stability.
Chemical Composition of 7075 T652 Forged Aluminum Bar
The superior performance of 7075 T652 forged aluminum bar is fundamentally determined by its precise chemical composition ratio, which strictly complies with international standards such as ASTM B247, AMS 4140 and QQ-A-250/24. The main chemical elements (mass fraction) are as follows:
Aluminum (Al) accounts for 90.7%~94.7%, acting as the matrix element to ensure the basic lightweight and corrosion resistance of the alloy.
Zinc (Zn) is the primary strengthening element, with a content of 5.1%~6.1%, which forms a high strength intermetallic compound with magnesium and copper to significantly improve the alloy’s tensile strength and hardness.
Magnesium (Mg) content is 2.1%~2.9%, synergizing with zinc to enhance precipitation hardening effect and boost the alloy’s yield strength.
Copper (Cu) content is 1.2%~2.0%, optimizing the alloy’s strength and toughness balance, while improving its stress corrosion resistance.
In addition, trace amounts of Chromium (Cr 0.18%~0.28%) are added to refine the grain structure, eliminate internal defects, and enhance the alloy’s fatigue resistance, with strict control of impurity elements such as iron and silicon to ensure the purity and performance stability of the forged bar.
This precise element matching endows 7075 T652 forged aluminum bar with a solid material foundation, avoiding performance defects caused by excessive or insufficient element content, and laying a solid groundwork for its excellent mechanical properties and processing performance.
Core Performance Characteristics of 7075 T652 Forged Aluminum Bar
7075 T652 forged aluminum bar is processed through precision forging, solution heat treatment, stress relief compression and artificial aging (T652 temper), which perfectly integrates the advantages of forging and heat treatment, presenting a set of excellent performance indicators that meet the needs of high-end manufacturing.
In terms of mechanical properties, it has ultra high tensile strength and yield strength, with a tensile strength of up to 570~590 MPa and a yield strength of 475~505 MPa, comparable to medium carbon steel at only one-third the density of steel, achieving an ideal balance between lightweight and load-bearing capacity. Its Brinell hardness reaches 150~160 HB, with excellent wear resistance and anti-deformation ability, suitable for manufacturing high load bearing components. Meanwhile, the T652 temper adopts 1%-5% compression stress relief after solution treatment, completely eliminating internal residual stresses generated in the forging and heat treatment process, ensuring excellent dimensional stability during machining and long-term use, avoiding warping, deformation and size deviation, which is critical for precision machining parts.
In terms of environmental adaptability, it has good fatigue strength and impact toughness, able to withstand repeated alternating loads and instantaneous impact without fracture, suitable for long-term service in complex working conditions. Although its overall corrosion resistance is weaker than that of 5000 series aluminum alloys, proper surface treatments such as anodizing and coating can effectively enhance its corrosion resistance, expanding its application scope. It also has good machinability, can adapt to turning, milling, drilling and other precision machining processes, and is easy to form complex structural parts, meeting the high-precision processing requirements of high-end equipment.
Application Scope of 7075 T652 Forged Aluminum Bar
Relying on its comprehensive performance advantages, 7075 T652 forged aluminum bar is widely used in fields with extremely high requirements for material strength, lightweight and dimensional stability, covering multiple core manufacturing industries at home and abroad.
In the aerospace industry, it is the preferred material for key structural components, used to manufacture aircraft wing spars, fuselage frames, landing gear components, satellite structural parts and rocket load-bearing parts. Its high strength and lightweight properties effectively reduce the weight of aerospace equipment, improve payload and fuel efficiency, and ensure the safety and stability of equipment under extreme working conditions.
In the military and defense field, it is widely used in the production of military vehicle chassis, weapon system components, precision instrument shells and armored parts. Its high impact resistance and load-bearing capacity ensure the reliability and durability of military equipment in harsh battlefield environments, meeting the strict standards of military manufacturing.
In the precision machinery and mold manufacturing industry, it is used to process high-precision mechanical shafts, tooling fixtures, mold inserts and automation equipment components. Its excellent dimensional stability and machinability ensure the machining accuracy and service life of parts, reducing the scrap rate caused by material deformation.
In addition, it is also applied in high-performance automotive parts, racing components, high-end sports equipment (such as bicycle frames, mountaineering equipment) and marine precision components, giving full play to its advantages of high strength, lightweight and corrosion resistance after surface treatment, meeting the high-performance needs of different industries.
7075 T652 forged aluminum bar is a high-performance aluminum alloy product with excellent comprehensive properties, and its unique chemical composition and specialized heat treatment process make it have unparalleled advantages in high-strength, high-precision and lightweight application scenarios. As a professional supplier of aluminum products, we provide 7075 T652 forged aluminum bars with complete specifications, stable performance and compliance with international standards, supporting customized processing and precision machining services. Whether you are engaged in aerospace manufacturing, military equipment production or precision machinery processing, our 7075 T652 forged aluminum bars can meet your strict material requirements, helping you improve product quality and market competitiveness. Welcome to contact us for detailed product parameters, quotation and customized solutions.
Post time: Mar-27-2026