Jul 29 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Applications
Introduction
Magnesium AS41B-F die cast alloy has excellent saltwater corrosion resistance coupled with creep resistance that is superior to magnesium grades AM60A, AZ91A, AZ91B, and AZ91D. This alloy also possesses tensile strength, yield strength, and elongation.
The following sections will discuss in detail about magnesium AS41B-F die cast alloy.
Chemical Composition
The chemical composition of magnesium AS41B-F die cast alloy is outlined in the following table.
|
Element |
Content (%) |
|
Magnesium, Mg |
94.6 |
|
Aluminum, Al |
3.5 - 5 |
|
Silicon, Si |
0.50 - 1.5 |
|
Manganese, Mn |
≥ 0.35 |
|
Zinc, Zn |
≤ 0.12 |
|
Copper, Cu |
≤ 0.020 |
|
Iron, Fe |
≤ 0.0035 |
|
Nickel, Ni |
≤ 0.0020 |
|
Other, per element |
≤ 0.20 |
Physical Properties
The physical properties of magnesium AS41B-F die cast alloy are tabulated below.
|
Properties |
Metric |
Imperial |
|
Density |
1.776 g/cm3 |
0.06416 lb/in3 |
|
Melting point |
570 - 615 °C |
1060 - 1140 °F |
Mechanical Properties
The following table shows mechanical properties of magnesium AS41B-F die cast alloy.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
214 MPa |
31000 psi |
|
Yield strength |
138 MPa |
20000 psi |
|
Poisson’s ratio |
0.35 |
0.35 |
|
Modulus of elasticity |
45 GPa |
6530 ksi |
|
Elongation at break |
6-15% |
6-15% |
|
Hardness, Brinell |
60 |
60 |
Thermal Properties
The thermal properties of magnesium AS41B-F die cast alloy are tabulated below.
|
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 |
Applications
Magnesium AS41B-F die cast alloy is primarily used in automotive structural die casting parts in operating temperatures of up to 177°C (350°F).