Jul 29 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Applications
Introduction
Magnesium is usually alloyed with non-ferrous metals such as aluminum, lead, zinc, etc.
This datasheet will elaborate on the properties and applications of magnesium AM100A-T6 alloy. This alloy exhibits excellent weldbility and good yield strength.
Chemical Composition
The following table shows the chemical composition of magnesium AM100A-T6 alloy.
|
Element |
Content (%) |
|
Magnesium, Mg |
90 |
|
Aluminum, Al |
9.3-10.7 |
|
Silicon, Si |
≤0.30 |
|
Zinc, Zn |
≤ 0.30 |
|
Manganese, Mn |
≤0.10 |
|
Copper, Cu |
≤0.10 |
|
Nickel, Ni |
≤0.010 |
Physical Properties
The physical properties of magnesium AM100A-T6 alloy are as per the table below.
|
Properties |
Metric |
Imperial |
|
Density |
1.83 g/cc |
0.0661 lb/in³ |
|
Melting Point(Incipient Melting) |
≥430°C |
≥806°F |
Mechanical Properties
The mechanical properties of magnesium AM100A-T6 cast alloy are provided in the table below.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
275 MPa |
39900 psi |
|
Yield strength (@ strain 0.200%) |
110 MPa |
16000 psi |
|
Compressive Yield Strength (machined specimen with L/D less than or equal to 3) |
110 MPa |
16000 psi |
|
Shear modulus |
17 GPa |
2470 ksi |
|
Elastic modulus (in tension) |
45 GPa |
6530 ksi |
|
Poisson's ratio |
0.35 |
0.35 |
|
Elongation at break (in 50 mm) |
4% |
4% |
|
Hardness, Brinell (500 kg load, 10 mm ball) |
69 |
69 |
|
Hardness, Knoop (estimated from Brinell) |
92 |
92 |
|
Hardness, Vickers (estimated from Brinell) |
79 |
79 |
|
Machinability (relative rating, 100=best) |
100% |
100% |
Thermal Properties
The table below lists the thermal properties of magnesium AM100A-T6 alloy.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@ 0.000-100°C/32-212°F) |
25 µm/m°C |
13.9 µin/in°F |
|
Thermal conductivity |
73 W/mK |
507 BTU in/hr.ft².°F |
Other Designations
Other designations that are used to denote magnesium AM100A-T6 alloy are:
-
ASTM B 80
-
ASTM B 403 (Ingot UNS M10101)
-
ASTM B 199
-
AMS 4455 T6 temper
Applications
Magnesium AM100A-T6 alloy is typically used in making commercial and military pressure tight sand and permanent mold structural castings. This alloy is also used in making investment casts.