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Material Type: Heat-treatable wrought aluminum alloy
Temper Options: T6, T651, T73, O
Melting Point: ~477°C
Modulus of Elasticity: 71.7 GPa
Thermal Conductivity: 130 W/m·K
Origin: China
Transport Package: Standard Export Package
7075 Aluminum Alloy is a high-strength, heat-treatable aluminum-zinc alloy that delivers exceptional performance in demanding structural and aerospace environments. Renowned for its outstanding strength-to-weight ratio, excellent fatigue resistance, and good machinability, 7075 is one of the strongest aluminum alloys available — often used as an alternative to steel in weight-sensitive applications.
Ultra-High Strength: One of the highest-strength aluminum alloys, ideal for load-bearing structures.
Excellent Fatigue Resistance: Ensures long service life under repeated stress.
Good Machinability: Easily processed into precision components with tight tolerances.
Moderate Corrosion Resistance: Performs well with proper surface treatment or anodizing.
Heat Treatable: Achieves superior mechanical properties after T6 or T651 tempering.
| Property | Typical Value |
|---|---|
| Tensile Strength | 510–580 MPa |
| Yield Strength (0.2%) | 430–500 MPa |
| Elongation | 5–11% |
| Hardness | 150 HB |
| Density | 2.81 g/cm³ |
| Element | Zn | Mg | Cu | Cr | Fe | Si | Mn | Ti | Al |
|---|---|---|---|---|---|---|---|---|---|
| Typical | 5.1–6.1 | 2.1–2.9 | 1.2–2.0 | 0.18–0.28 | ≤0.5 | ≤0.4 | ≤0.3 | ≤0.2 | Balance |
Aerospace Industry: Aircraft wings, fuselage frames, and landing gear components.
Defense & Military: Structural armor, missile parts, and high-load fittings.
Automotive: Performance parts, suspension arms, and racing components.
Sports Equipment: Bicycles, climbing gear, and high-end fishing reels.
Industrial Machinery: High-stress mechanical components and precision tooling.
Extremely high strength-to-weight ratio for lightweight design.
Excellent fatigue performance under cyclic loading.
Superior machinability for precision engineering.
Good thermal conductivity and stability.
7075 Aluminum Alloy is engineered for maximum strength and performance, making it the material of choice for aerospace, defense, and high-stress industrial applications. Combining strength close to steel with a fraction of the weight, it delivers unmatched performance in critical environments where reliability and efficiency matter most.
