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Aluminum 7075
Material type: Metal, Aluminum Alloy, High-Strength, Heat-Treatable, Aircraft-Grade, Machinable, Non-Magnetic, Low-Weldability
A high-strength aircraft-grade aluminum alloy, offering exceptional tensile strength and fatigue resistance, with good machinability in tempered conditions.
Process compatibility
Material Color
Silver white
Material advantages
1.Ultra-high mechanical strength and hardness, among the strongest aluminum alloys for heavy-duty applications.
2.Excellent fatigue resistance and performance under dynamic loads.
3.Good dimensional stability after machining, suitable for precision structural components.
4.Widely specified in aerospace, defense and high-performance engineering industries.
2.Excellent fatigue resistance and performance under dynamic loads.
3.Good dimensional stability after machining, suitable for precision structural components.
4.Widely specified in aerospace, defense and high-performance engineering industries.
Material shortcomings
1.Poor weldability; welding is generally not recommended and can severely reduce local strength.
2.Higher material cost compared to 6061 and 5052.
3.Lower corrosion resistance than 6061, often requiring anodizing or coating for outdoor use.
4.More challenging to form than softer alloys, relying on machining rather than cold forming.
2.Higher material cost compared to 6061 and 5052.
3.Lower corrosion resistance than 6061, often requiring anodizing or coating for outdoor use.
4.More challenging to form than softer alloys, relying on machining rather than cold forming.
Recommended description
7075 is a premium high-strength aluminum designed for critical, load-bearing parts. Best used in aerospace components, tooling, high-stress brackets and precision machinery parts where strength and durability take priority over cost and weldability.
Properties
| Name | |
|---|---|
| Tensile strength | 572 MPa |
| Yield strength | 503 MPa |
| Shear strength | 331 MPa |
| Fatigue strength | 159 MPa |
| Modulus of elasticity | 71.7GPa |
| Shear modulus | 26.9 GPa |
| Linear thermal expansion coefficient | 23.6μm/m·k |
| Density | 2.82 g/cm3 |
| Melting temperature | 475-635 °C |
Common applications
• Aircraft fittings
• Gears and shafts
• Missile parts
• Regulating valve parts
• Worm gears
• Aerospace/defense applications
Customer reviews
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