Aug 2 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Applications
Introduction
Magnesium AS41A-F alloy exhibits good tensile strength and good elongation. Its creep resistance is superior to AZ91A, AZ91B, AZ91D and AM60A alloys.
This data sheet will elaborate on the properties and applications of magnesium AS41A-F alloy.
Chemical Composition
The following table shows the chemical composition of magnesium AS41A-F alloy.
Element |
Content (%) |
Magnesium, Mg |
94.6 |
Aluminum, Al |
3.5-5 |
Silicon, Si |
0.5-1.5 |
Manganese, Mn |
0.2-0.5 |
Zinc, Zn |
≤0.12 |
Copper, Cu |
≤0.060 |
Nickel, Ni |
≤0.030 |
Physical Properties
The physical properties of magnesium AS41A-F alloy are given in the following table.
Properties |
Metric |
Imperial |
Density |
1.776 g/cc |
0.06416 lb/in³ |
Melting Point |
570-615°C |
1060-1140°F |
Mechanical Properties
The mechanical properties of magnesium AS41A-F alloy are listed in the table below.
Properties |
Metric |
Imperial |
Tensile Strength |
214 MPa |
31000 psi |
Yield strength |
138 MPa |
20000 psi |
Compressive yield strength |
138 MPa |
20000 psi |
Shear modulus (estimated from similar Mg alloys) |
17 GPa |
2470 ksi |
Elastic modulus |
45 GPa |
6530 ksi |
Poisson's ratio (estimated from similar Mg alloys) |
0.35 |
0.35 |
Elongation at break (in 50 mm) |
6-15 % |
6-15 % |
Thermal Properties
The following table outlines the thermal properties of magnesium AS41A-F alloy.
Properties |
Metric |
Imperial |
Thermal expansion co-efficient (@ 20-100°C/68-212°F) |
26.1 µm/m°C |
14.5 µin/in°F |
Thermal Conductivity |
68 W/mK |
472 BTU in/hr.ft².°F |
Other Designations
Some of the other designations that are used to denote magnesium AS41XA-F alloy are:
-
ASTM B 94
-
European EN 1753 MC 21320
Applications
Magnesium AS41A-F alloy is typically used in as-cast condition (F) in automotive structural die casting parts that function at temperatures of 350°F.