AA 7175 Aluminum Alloy
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Family: Aluminum Alloy
Zinc Alloy (Al-Zn). AA designation 7175.
Performance Ratings
Performance Radar
| Property | Rating |
|---|---|
| Strength | 6 / 10 |
| Corrosion Res. | 6 / 10 |
| Lightweight | 9 / 10 |
| Machinability | 8 / 10 |
| Affordability | 7 / 10 |
| Heat Res. | 4 / 10 |
Composition
Mechanical Properties
| Tensile Strength | 541.5 MPa |
| Yield Strength | 482.5 MPa |
| Elongation | 10.2% |
| Hardness (Rockwell) |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Al | 89.87 |
| Cr | 0.22 |
| Cu | 1.49 |
| Fe | 0.16 |
| Mg | 2.54 |
| Mn | 0.1 |
| Si | 0.11 |
| Ti | 0.1 |
| Zn | 5.41 |
Where to Buy AA 7175 Aluminum Alloy
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Description
AA 7175 is a high-purity variant of 7075 with tighter impurity limits and higher zinc content, specifically designed for aerospace forgings requiring optimized strength, fracture toughness, and resistance to stress corrosion cracking in T736 or T73 temper. The improved microstructural homogeneity from tighter composition control results in superior fatigue resistance compared to standard 7075. Applications include aircraft structural forgings, wing spars, bulkhead frames, and other critical aerospace forged components.