7075
7075 Aluminium: Premium Alloy for Aerospace & Heavy Engineering
7075 Aluminium is one of the strongest aluminium alloys available, offering an exceptional combination of strength, toughness, and lightweight characteristics. Primarily alloyed with zinc as the main strengthening element, it is known for its superior mechanical properties and excellent fatigue resistance, making it highly suitable for critical structural applications where strength-to-weight ratio is a priority. This alloy exhibits remarkable performance under high stress and load conditions while maintaining excellent dimensional stability. 7075 aluminium has lower corrosion resistance compared to other alloys like 6061 but can be anodized or coated to improve surface protection. It is also noted for its good machinability and polishability, allowing for precision manufacturing of parts that require tight tolerances and a smooth finish. Commonly supplied in tempers such as T6, T651, and T73, 7075 aluminium is widely used in the aerospace, automotive, defense, and marine industries. Typical applications include aircraft frames, wing spars, landing gears, gears, shafts, high-performance sporting goods, and mold tooling. Its superior tensile strength, reaching up to 572 MPa in T6 condition, rivals that of many steels while remaining far lighter in weight. Overall, 7075 aluminium remains the material of choice when extreme strength, fatigue resistance, and high mechanical performance are required in demanding environments.
Overview of 7075 Aluminium Alloy
26187075 aluminium alloy is part of the 7xxx series, in which zinc serves as the primary alloying element. It is renowned for its exceptional strength-to-weight ratio, outstanding fatigue resistance, and excellent corrosion resistance even at elevated temperatures.
These superior mechanical properties make 7075 aluminium a preferred choice for structural and performance-critical applications that must endure high stress and demanding conditions.
Common applications include aircraft structures, fittings, automotive components, and high-performance parts where reliability and strength are paramount.
Chemical Composition of 7075 Aluminium
| Element | Composition (%) |
|---|---|
| Aluminium (Al) | Remainder |
| Zinc (Zn) | 5.1 – 6.1% |
| Magnesium (Mg) | 2.1 – 2.9% |
| Copper (Cu) | 1.2 – 2.0% |
| Chromium (Cr) | 0.18 – 0.28% |
| Titanium (Ti) | 0.05% |
| Iron (Fe) | Max 0.5% |
| Manganese (Mn) | Max 0.3% |
Mechanical Properties of 7075 Aluminium
| Property | Value |
|---|---|
| Tensile Strength | 572 MPa (min) |
| Yield Strength | 503 MPa (min) |
| Elongation at Break | 11% |
| Fatigue Strength | 159 MPa |
| Density | 2.81 g/cm³ |
| Melting Point | 477 – 635 °C |
| Hardness (Brinell) | 150 |
| Shear Strength | 331 MPa |
Equivalents to grade 7075
| Country - USA | Standard - AISI | Grade - 7075 |
| V95 (В95) - Aluminium wrought alloys |
Types of delivery of grade V95 (В95)
| B52 - Graded and shaped rolling |
| B53 - Sheets and Strips |
| В54 - Ribbons |
| B55 - Bars |
| B64 - Pipes of non-ferrous metals and alloys |
Applications of 7075 Aluminium Alloy
The high strength and excellent fatigue resistance of 7075 aluminium make it a popular choice for applications in aerospace, defense, and automotive sectors. Here are some common uses:
Aerospace Components: Aircraft fittings, wings, fuselage structures
Automotive Parts: High-performance engine components, suspension parts
Defense Applications: Military vehicles, missile components
Heavy Engineering: Gears, shafts, jigs, and fixtures
Why Choose 7075 Aluminium?
Superior Strength: One of the highest tensile strengths among aluminium alloys, ideal for high-stress environments.
Fatigue Resistance: Withstands cyclic stresses, perfect for components experiencing repeated loading.
Corrosion Resistance: Excellent protection against stress corrosion cracking.
Machinability: Can be effectively machined with proper processes, despite being harder than 6061.
Choosing Russian Metals for 7075 Aluminium
High-Quality Material: We supply premium quality 7075 aluminium, ensuring superior performance in high-demand applications.
Custom Sizes & Specifications: Tailored to your project’s needs with a variety of forms, including sheets, plates, bars, and extrusions.
Technical Expertise: Our team offers detailed guidance to help you choose the right 7075 aluminium alloy for your requirements.
On-Time Delivery: Fast and reliable delivery across India with customer support available every step of the way.
7075 USA Aluminium alloy: Equivalent Grades for Russia, Ukraine, Belorussia, Kazakhstan...
Contact Us for 7075 Aluminum Orders
For more information or to place an order, contact Russian Metals today. We specialize in providing the best quality GOST 7075 aluminum at competitive prices for industrial, defense, and aerospace applications.