Aug 26 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Introduction
Aluminum 2048 alloy is a heat treatable wrought alloy type with good corrosion resistance.
The following datasheet will provide more details about aluminum 2048.
Chemical Composition
The following table shows the chemical composition of aluminum 2048.
|
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
The physical properties of aluminum 2048 alloy are outlined in the following table.
|
Properties |
Metric |
Imperial |
|
Density |
2.75 g/cm³ |
0.0994 lb/in³ |
|
Melting point |
520 - 645 °C |
968 - 1190 °F |
Mechanical Properties
The mechanical properties of aluminum 2048 alloy are tabulated below.
|
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
The thermal properties of aluminum 2048 alloy are tabulated below.
|
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 |