Jul 29 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Applications
Introduction
Magnesium alloys are used as advanced structural materials in applications, particularly automotive, aerospace, and railway industries due to their unique properties of low density, good machinability, excellent damping capacity, and high specific strength.
Magnesium AZ63A-T6 alloy has good room temperature strength, toughness, and ductility. The following sections will discuss in detail about magnesium AZ63A-T6 alloy.
Chemical Composition
The chemical composition of magnesium AZ63A-T6 alloy is outlined in the following table.
Element |
Content (%) |
Aluminum, Al |
6 |
Zinc, Zn |
3 |
Manganese, Mn |
0.15 |
Magnesium, Mg |
Remainder |
Physical Properties
The physical properties of magnesium AZ63A-T6 alloy are tabulated below.
Properties |
Metric |
Imperial |
Density |
1.84 g/cm3 |
0.066 lb/in3 |
Mechanical Properties
The following table shows mechanical properties of magnesium AZ63A-T6 alloy.
Properties |
Metric |
Imperial |
Tensile strength |
275 MPa |
40 ksi |
Yield strength |
130 MPa |
18 ksi |
Elastic modulus |
44.8 GPa |
6497 ksi |
Elongation at break |
5% |
5% |
Hardness |
73 |
73 |
Machinability |
100 |
100 |
Thermal Properties
The thermal properties of magnesium AZ63A-T6 alloy are tabulated below.
Properties |
Conditions |
T (°C) |
Treatment |
Thermal conductivity |
75.3 W/mK |
- |
T6 |
Thermal expansion |
26.1 x 10-6/°C |
20-100 |
T6 |
Other Designations
Other designations that are equivalent to magnesium AZ63A-T6 alloy include the following:
-
ASTM A276
-
ASTM A580
-
AMS 4420
-
AMS 4422
-
AMS 4424
-
ASTM B 80
-
SAE J465
Applications
Magnesium AZ63A-T6 alloy is chiefly used in commercial and military structural applications.