Aug 6 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Introduction
Magnesium Azxx alloy series are known to possess good ductility, toughness, and moderate strength. They can be cast, formed, and forged. These alloys are more frequently used than others.
The following sections will discuss in detail about magnesium AZ91C-T6 alloy.
Chemical Composition
The chemical composition of magnesium AZ91C-T6 alloy is outlined in the following table.
|
Element |
Content (%) |
|
Aluminum, Al |
8.70 |
|
Zinc, Zn |
0.70 |
|
Manganese, Mn |
0.13 |
|
Magnesium, Mg |
Remainder |
Physical Properties
The physical properties of magnesium AZ91C-T6 alloy are tabulated below.
|
Properties |
Metric |
Imperial |
|
Density |
1.81 g/cm3 |
0.0654 lb/in3 |
|
Melting point |
≥ 421 °C |
≥ 790 °F |
Mechanical Properties
The following table shows mechanical properties of magnesium AZ91C-T6 alloy.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
275 MPa |
39900 psi |
|
Yield strength |
145 MPa |
21000 psi |
|
Poisson’s ratio |
0.35 |
0.35 |
|
Elastic modulus |
44.8 GPa |
6500 ksi |
|
Elongation |
6% |
6% |
|
Hardness, Brinell |
70 |
70 |
|
Hardness, Knoop |
93 |
93 |
|
Hardness, Rockwell E |
77 |
77 |
|
Hardness, Vickers |
80 |
80 |
Thermal Properties
The thermal properties of magnesium AZ91C-T6 alloy are tabulated below.
|
Properties |
Conditions |
|
T (°C) |
Treatment |
|
Thermal conductivity |
71.13 W/mK |
0 |
T6 |
|
Thermal expansion |
26 x 10-6/°C |
20-100 |
T6 |
Other Designations
Equivalent materials to magnesium AZ91C-T6 alloy are as follows:
-
AMS 4437
-
ASTM B 80
-
ASTM B 403
-
SAE J465.