Magnesium metal discription
Overview of the uses of metallic magnesium
Magnesium metal is a light metal with excellent physical and chemical properties, which is widely used in industry, medical care, aviation and other fields. The characteristics of metallic magnesium mainly include the following aspects:
1. Lightweight: Magnesium is a light metal, which is about 2/3 lighter than steel and 1/4 lighter than aluminum, so it is widely used in light materials and building structures.
2. High strength: Magnesium metal has higher strength than aluminum and excellent mechanical properties, so it is widely used in light alloy materials, aviation materials, automobiles, electronics, optics and other fields.
3. Good chemical stability: Magnesium metal has good chemical stability and can prevent corrosion and oxidation. Metal magnesium has good corrosion resistance and electrical conductivity, so it is widely used in construction, cables, motors, electrical appliances and other fields.
Second, the industrial application of magnesium metal
1. Logistics transportation: The light weight of magnesium metal makes it an ideal material in the field of logistics transportation, especially in the fields of high-speed trains, highways and aviation.
2. Aerospace field: Magnesium metal is an important component of light and high-strength alloy materials, which is widely used in aerospace and other fields, such as manufacturing aircraft structural parts, engine blades and shells.
3. Optical field: Because of its high reflectivity and corrosion resistance, magnesium metal has been widely used in making optical devices, such as mirrors, telescopes, photographic instruments and so on.
Third, the life application of magnesium metal
1. Medical field: Magnesium metal has the advantages of anti-inflammation, analgesia and quick curative effect, so it is widely used in the medical field, such as making surgical instruments, medical instruments and so on.
2. Architectural field: Magnesium metal has good corrosion resistance and high strength, so it is widely used in the architectural field, such as making roofs, wallboard and floors.
3. Cooking utensils: Magnesium metal has high thermal conductivity and chemical stability, so it is widely used in the manufacture of kitchen cooking utensils, such as pressure cookers, steamer and so on.
Composition of magnesium metal
| Grade | Chemical Component ％ | |||||
| Mg | Fe | Si | Cu | Al | Mn | |
| ≥ | ≤ | |||||
| Mg99.8# | 99.8% | 0.5 | 0.05 | 0.02 | 0.05 | 0.05 |
| Mg99.9# | 99.9% | 0.4 | 0.03 | 0.004 | 0.02 | 0.03 |
| Mg99.995# | 99.995% | 0.005 | 0.015 | 0.002 | 0.015 | 0.015 |
| Mg99.998# | 99.998% | 0.002 | 0.0005 | 0.004 | 0.004 | 0.0002 |
FAQ about magnesium metal
I. How about the hardness of magnesium
The hardness range of magnesium is relatively low. On the Mohs hardness tester, the hardness of magnesium is about 2.0 to 2.5, which means that it is relatively easy to be scratched. In fact, nails can leave marks on the surface of magnesium. Similarly, in the Brinell hardness test, the hardness value of pure magnesium is also low, usually not exceeding 30HB. These hardness data provide us with important information about the characteristics of magnesium material, which is helpful for us to better understand and apply this metal.
2.What are factors affecting the hardness of magnesium
The hardness of magnesium is influenced by many factors, the most important of which is its crystal structure and purity. As a light metal, magnesium has a hexagonal crystal structure, which makes the bonding force between magnesium atoms relatively weak, resulting in lower hardness. In addition, the existence of impurity elements will also affect the hardness of magnesium. For example, some alloying elements can improve the hardness of magnesium, while some impurities may cause the hardness to decrease.
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