What is Magnesium Alloys?
Magnesium alloy is magnesium as the main component, while adding other elements of the alloy, its density is low(1.8g/cm3), is 2/3 of aluminum, is 1/4 of iron. Melting point is 650 degree. High strength, good rigidity, good thermal dissipation, good shock absorption, good corrosion resistance of organic and alkali, magnesium alloy because of the filling of other elements, so the flammability is lower than magnesium. Now on the market magnesium alloy, mainly divided into three categories, magnesium-aluminum alloy, magnesium-manganese alloy and magnesium-zinc alloy.
Magnesium Alloys Characters
| Advantages | Disadvantages |
| Low density; Light Weight; High Stength | Poor corrosion resistance |
| Good shock absorption | Easy oxidation |
| Good electrical and thermal conductivity | Flammability |
| Good Machining performance | Poor heat resistance |
| Light weight, good rigidity, certain corrosion resistance and dimensional stability | |
| Impact resistance, wear resistance, good attenuation performance and easy recycling | |
| Non-magnetic, good shielding and non-toxic characteristics |
| Metal Alloy | Denstiy |
| Steel | 7.9 |
| Zn | 7.1 |
| Al | 2.7 |
| Mg | 1.8 |
Magnesium alloy physical properties
| Material | AZ91D | AM60B | A380 |
| Ultimate tensile strength | 230 | 220 | 315 |
| Tensile yield strength | 150 | 130 | 160 |
| Compression yield strength (mpa) | 165 | 130 | 120 |
| Delay rate | 3 | 8 | 3.5 |
| Impact strength | 2.7 | 3.9 | 3 |
| Fatigue strength (mpa) | 97 | 110 | 138 |
| Specific heat(J/kg℃) | 1050 | 1650 | 963 |
| Thermal conductivity | 72 | 61 | 96.2 |
| Modulus of elasticity | 45 | 45 | 71 |
| Die casting temperature | 630~680 | 630~680 | 640~660 |
Application
Application: Magnesium alloy is widely used in automotive industry to achieve light weight; such as Engine, Gearbox,wheels; also used on Aircraft,laptop and bicycle frame and so on.
Conclusion
In short, magnesium alloy has many advantages, with new energy vehicles and lightweight design, more and more parts to use magnesium alloy, although magnesium alloy is flammable, but for the die-casting factory, strict management and production process, but also can well control the risk of flammability, if you have magnesium alloy die-casting project, or die-casting materials, please contact us