Jul 29 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Applications
Introduction
Magnesium AS41A-F die cast alloy has excellent creep resistance that is superior to magnesium alloy grades AZ91A, AZ91B, AZ91D, and AM60A. This alloy’s tensile strength, yield strength, and elongation are good as well.
The following sections will discuss in detail about magnesium AS41A-F die cast alloy.
Chemical Composition
The chemical composition of magnesium AS41A-F 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 |
0.20 - 0.50 |
Zinc, Zn |
≤ 0.12 |
Copper, Cu |
≤ 0.060 |
Nickel, Ni |
≤ 0.030 |
Physical Properties
The physical properties of magnesium AS41A-F alloy are tabulated below.
Properties |
Metric |
Imperial |
Density |
1.776 g/cm3 |
0.06416 lb/in3 |
Mechanical Properties
The following table shows mechanical properties of magnesium AS41A-F cast alloy.
Properties |
Metric |
Imperial |
Tensile strength |
214 MPa |
31000 psi |
Yield strength |
138 MPa |
20000 psi |
Poisson’s ratio |
0.35 |
0.35 |
Elastic modulus |
45 GPa |
6526 ksi |
Elongation at break |
6-15% |
6-15% |
Hardness, Brinell |
60 |
60 |
Thermal Properties
The thermal properties of magnesium AS41A-F 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 AS41A-F alloy is used in automotive structural die casting parts in operating temperatures of up to 177°C (350°F).