Jul 31 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Introduction
Magnesium is ductile, machinable and one of the lightest of all the metals. Magnesium HZ32A-T5 alloy is pressure tight, and has good castability and good creep resistance.
The following datasheet gives an overview of magnesium HZ32A-T5 alloy.
Chemical Composition
The following table shows the chemical composition of magnesium HZ32A-T5 alloy.
|
Element |
Content (%) |
|
Magnesium, Mg |
94 |
|
Thorium, Th |
2.5 - 4 |
|
Zinc, Zn |
1.7 - 2.5 |
|
Zirconium, Zr |
0.50 - 1 |
|
Copper, Cu |
≤ 0.10 |
|
Rare Earths |
≤ 0.10 |
|
Nickel, Ni |
≤ 0.010 |
Physical Properties
The physical properties of magnesium HZ32A-T5 alloy are given in the following table.
|
Properties |
Metric |
Imperial |
|
Density |
1.83 g/cm³ |
0.0661 lb/in³ |
Mechanical Properties
The mechanical properties of cast magnesium HZ32A-T5 alloy are listed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
185 MPa |
26800 psi |
|
Yield strength |
90 MPa |
13100 psi |
|
Compressive yield strength (at 0.2% offset) |
90 MPa |
13100 psi |
|
Ultimate bearing strength |
410 MPa |
59500 psi |
|
Bearing yield strength |
255 MPa |
37000 psi |
|
Shear strength |
140 MPa |
20300 psi |
|
Shear modulus (typical for steel) |
17 GPa |
2470 ksi |
|
Elastic modulus |
45 GPa |
6530 ksi |
|
Poisson's ratio |
0.3 |
0.3 |
|
Elongation at break (in 50 mm) |
4% |
4% |
|
Brinell hardness (500 kg load, 10 mm ball) |
55 |
55 |
|
Knoop hardness (estimated from Brinell) |
70 |
70 |
|
Machinability (relative rating, 100=best) |
100 |
100 |
Thermal Properties
The following table outlines the thermal properties of magnesium HZ32A-T5 alloy.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@ 0-100°C/32-212°F) |
26.7 µm/m°C |
14.8 µin/in°F |
|
Thermal conductivity |
110 W/mK |
763 BTU in/hr.ft².°F |