Aug 2 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Applications
Introduction
Magnesium AS41B-F alloy is characterized by good tensile strength and elongation. It also exhibits excellent resistance to corrosion by salt water.
This data sheet will elaborate on the properties and applications of magnesium AS41B-F alloy.
Chemical Composition
The following table provides data on the chemical composition of magnesium AS41B-F alloy.
|
Element |
Content (%) |
|
Magnesium, Mg |
94.6 |
|
Aluminum, Al |
3.5-5 |
|
Silicon, Si |
0.5-1.5 |
|
Manganese, Mn |
≥0.35 |
|
Other, each |
≤0.20 |
|
Zinc, Zn |
≤0.12 |
|
Copper, Cu |
≤0.020 |
|
Iron, Fe |
≤0.0035 |
|
Nickel, Ni |
≤0.0020 |
Physical Properties
The physical properties of magnesium AS41B-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 AS41B-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 % |
|
Hardness, Brinell (500 kg load, 10mm ball) |
60 |
60 |
Thermal Properties
The following table outlines the thermal properties of magnesium AS41B-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 AS41B-F alloy are:
-
ASTM B 94
-
European EN 1753 MC 21320
Applications
Magnesium AS41B-F alloy is predominantly used as-cast condition (F) in automotive structural die casting parts that can withstand temperatures upto 350°F.