Sep 27 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Introduction
Aluminium / Aluminum alloys have strong corrosion resistance and high electrical conductivity. 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, making them a useful low-temperature alloy.
The following datasheet provides more details about Aluminium / aluminum casting A03830 alloy.
Chemical Composition
The following table shows the chemical composition of Aluminium / aluminum casting A03830 alloy.
Element |
Content (%) |
Aluminum, Al |
79.7 - 88.5 |
Silicon, Si |
9.50 - 11.5 |
Zinc, Zn |
3 |
Copper, Cu |
2 - 3 |
Iron, Fe |
1.30 |
Manganese, Mn |
0.50 |
Nickel, Ni |
0.30 |
Tin, Sn |
0.15 |
Magnesium, Mg |
0.10 |
Other, total |
0.50 |
Physical Properties
The following table shows the physical properties of Aluminium / aluminum casting A03830 alloy.
Properties |
Metric |
Imperial |
Density |
2.70 g/cm3 |
0.0975 lb/in³ |
Mechanical Properties
The mechanical properties of Aluminium / aluminum casting A03830 alloy are outlined in the following table.
Properties |
Metric |
Imperial |
Tensile strength, ultimate |
310 MPa |
45000 psi |
Tensile strength, yield (@0.2%) |
152 MPa |
22000 psi |
Fatigue strength (@# of cycles 5.00e+8, notch status unknown, test unknown) |
145 MPa |
21000 psi |
Shear strength (calculated) |
187 MPa |
27100 psi |
Modulus of elasticity |
70-80 GPa |
10153-11603 ksi |
Poissons ratio |
0.33 |
0.33 |
Elongation at break (in 50 mm) |
3.50% |
3.50% |
Charpy impact (v-notch) |
4 J |
2.95 ft-lb |
Hardness, Brinell (500 kg load, 10 mm ball) |
75 |
75 |
Hardness, Knoop (estimated from Brinell Hardness) |
98 |
98 |
Hardness, Vickers (estimated from Brinell Hardness) |
85 |
85 |
Machinability (0-100 Scale (100=best)) |
70 |
70 |
Thermal Properties
The thermal properties of Aluminium / aluminum casting A03830 alloy are given in the following table.
Properties |
Metric |
Imperial |
Thermal expansion co-efficient |
21.1 µm/m°C |
11.7 µin/in°F |
Thermal conductivity |
96.2 W/mK |
668 BTU in/hr.ft².°F |