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Grade: 7075
Formula: Al 90/Zn 5.5/Mg 2.5/Cu 1.5/Si 0.5
Form: Disk
Material: Aluminum
Commodity: Alloys
Temper:
As Rolled
Thickness:
0.2mm
7075 Aluminum Disk is a high-strength aluminum-zinc-magnesium-copper alloy known for its excellent strength-to-weight ratio, good fatigue resistance, and decent corrosion performance in controlled environments. The alloy’s heat-treatable nature allows precise tuning of mechanical properties, while its high hardness and dimensional stability make it suitable for load-bearing and precision-engineered components. Aerospace, defense, and high-performance sporting equipment industries use it for structural fittings, high-load mechanical joints, and precision mounting plates. Specific applications include aircraft bulkhead components, ballistic-grade structural inserts, and high-stiffness tooling bases for composite fabrication. In research and innovation, 7075 disks are essential for testing advanced joining methods, fatigue-resistant designs, and high-strength alloy machining processes. The combination of mechanical robustness, processing flexibility, and lightweight performance ensures its strategic value in both industrial and scientific advancements.
Tolerances
Disc
| Thickness | >0.05mm | ±10% |
|---|---|---|
| Thickness | <0.01mm | ±25% |
| Thickness | 0.01mm - 0.05mm | ±15% |
Material Properties for Alloys
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 150 |
| Elongation at break( % ) | 5-8% |
| Shear strength( MPa ) | 331 |
| Tensile strength( MPa ) | 510-538 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 5.15 |
| Temperature coefficient( K⁻¹ ) | - |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 447-635 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 130@20°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 24.4@20-250°C |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 2.8 |
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