Sep 13 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Introduction
Aluminium / Aluminum alloys have high electrical conductivity and strong corrosion resistance. These alloys tend to lose some of their strength at high temperatures ranging between 200 and 250°C (392 and 482°F). However, they can gain strength at subzero temperatures, which makes them a suitable low-temperature alloy.
The following datasheet will provide more details about Aluminium / Aluminum casting A03800 alloy.
Chemical Composition
The following table shows the chemical composition of Aluminium / Aluminum casting A03800 alloy.
|
Element |
Content (%) |
|
Aluminium / Aluminum, Al |
79.6 - 89.5 |
|
Silicon, Si |
7.50 - 9.50 |
|
Copper, Cu |
3 - 4 |
|
Zinc, Zn |
3 |
|
Iron, Fe |
2 |
|
Nickel, Ni |
0.50 |
|
Manganese, Mn |
0.50 |
|
Tin, Sn |
0.35 |
|
Magnesium, Mg |
0.10 |
|
Other, total |
0.50 |
Physical Properties
The following table shows the physical properties of Aluminium / Aluminum casting A03800 alloy.
|
Properties |
Metric |
Imperial |
|
Density |
2.76 g/cm3 |
0.0997 lb/in³ |
Mechanical Properties
The mechanical properties of Aluminium / Aluminum casting A03800 alloy are outlined in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength, ultimate |
317 MPa |
46000 psi |
|
Tensile strength, yield (@0.2%) |
159 MPa |
23100 psi |
|
Fatigue strength (@# of cycles 5.00e+8, notch status unknown, R.R. Moore test) |
138 MPa |
20000 psi |
|
Shear strength |
195 MPa |
28300 psi |
|
Modulus of elasticity |
70-80 GPa |
10153-11603 ksi |
|
Shear modulus |
26.5 GPa |
3840 ksi |
|
Poissons ratio |
0.33 |
0.33 |
|
Elongation at break (in 50 mm) |
2.50% |
2.50% |
|
Charpy impact |
4.07 J |
3.00 ft-lb |
|
Hardness, Brinell |
80 |
80 |
|
Machinability (0-100 Scale (100=best)) |
50 |
50 |
Thermal Properties
The thermal properties of Aluminium / Aluminum casting A03800 alloy are given in the following table.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@20-100°C/68-212°F) |
21.2 µm/m°C |
11.8 µin/in°F |
|
Thermal conductivity |
109 W/mK |
756 BTU in/hr.ft².°F |