1 November 2021 2000 Series Aluminum Alloy
2048 Aluminum Alloy Materials
Aluminum 2048 alloy is a heat treatable wrought alloy type with good corrosion resistance.
Chemical Composition:
| Element | Content (%) |
|---|---|
| Aluminum, Al | 92.9 - 95.8 |
| Copper, Cu | 2.8 - 3.8 |
| Magnesium, Mg | 1.2 - 1.8 |
| Zinc, Zn | ≤ 0.25 |
| Manganese, Mn | 0.20 - 0.60 |
| Iron, Fe | ≤ 0.20 |
| Silicon, Si | ≤ 0.15 |
| Titanium, Ti | ≤ 0.10 |
| Remainder | ≤ 0.15 |
Physical Properties:
| Properties | Metric | Imperial |
|---|---|---|
| Density | 2.75 g/cm³ | 0.0994 lb/in³ |
| Melting point | 520 - 645 °C | 968 - 1190 °F |
Mechanical Properties:
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 455 MPa | 66000 psi |
| Yield strength | 415 MPa | 60200 psi |
| Elongation at break | 8.30% | 8.30% |
| Poisson’s ratio | 0.33 | 0.33 |
| Elastic modulus | 70 GPa | 10200 ksi |
| Shear strength | 270 MPa | 39200 psi |
| Hardness, Brinell (@load 500 kg; thickness 10.0 mm) | 122 | 122 |
| Hardness, Knoop (converted from Brinell hardness value) | 153 | 153 |
| Hardness, Rockwell A (converted from Brinell hardness value) | 47.5 | 47.5 |
| Hardness, Rockwell B(converted from Brinell hardness value) | 76 | 76 |
| Hardness, Vickers (converted from Brinell hardness value) | 139 | 139 |
Thermal Properties:
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@20-100°C/68-212°F) | 23.5 µm/m°C | 13.1 µin/in°F |
| Thermal conductivity | 159 W/mK | 1100 BTU in/hr.ft².°F |