Aluminum 5052 vs 6061: Sheet Metal vs Structural CNC
5052 excels in saltwater corrosion resistance and formability for sheet metal applications. 6061 provides significantly higher strength and better machinability for structural CNC machined components.
Side-by-Side Property Comparison
| Property | Aluminum 5052-H32 | Aluminum 6061-T6 |
|---|---|---|
| Tensile Strength | 228 MPa (33 ksi) | 310 MPa (45 ksi) |
| Yield Strength | 193 MPa (28 ksi) | 276 MPa (40 ksi) |
| Hardness | 60 HB | 95 HB (Brinell) |
| Density | 2.68 g/cm³ | 2.70 g/cm³ |
| Machinability Rating | 60/100 | 90/100 |
| Thermal Conductivity | 138 W/m·K | 167 W/m·K |
| Melting Point | 607–649 °C | 582–652 °C |
| Tolerance | ±0.02 mm | ±0.02 mm |
Key Differences
| Property | Aluminum 5052-H32 | Aluminum 6061-T6 | Winner |
|---|---|---|---|
| Tensile Strength | 228 MPa | 310 MPa | Aluminum |
| Machinability | 60/100 | 90/100 | Aluminum |
| Saltwater Resistance | Excellent | Good | Aluminum |
| Formability | Excellent | Good | Aluminum |
| Heat Treatable | No | Yes (T6) | Aluminum |
| Cost | Similar | Similar | Tie |
Which Material Should You Choose?
Choose Aluminum 5052-H32 when:
- Marine and saltwater applications
- Sheet metal formed parts
- Fuel tanks and pressure vessels
- Electronic chassis and enclosures
- Parts requiring deep drawing
Choose Aluminum 6061-T6 when:
- Structural components
- CNC machined parts (better machinability)
- Heat-treatable applications
- Parts requiring higher strength
- General-purpose machined parts
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