Silicon Metal Granule Properties
Silicon, in its pure form, is a grey metallically lustrous metalloid element. Metallurgical grade silicon granule is known as silicon metal granule because of its lustrous appearance. The highly versatile material features a high melting point, excellent heat resistance, high resistivity, and antioxidant effects. It is an absolutely vital component in the production of a variety of electronics components as well as an additive in the smelting of many different types of metals and metal products.
Silicon metal Granule / Powder Specification
| Silicon powder | Specification | Min. Si content | Chemical composition% | ||
| Max impurity content | |||||
| Fe | Al | Ca | |||
| Silicon powder for chemical egineering | Si- (20-120 mesh) | 99 | 0.4 | 0.4 | 0.1 |
| Si- (30-140 mesh) | 99 | 0.4 | 0.4 | 0.1 | |
| Si- (40-160 mesh) | 99 | 0.4 | 0.4 | 0.1 | |
| Si- (40-280 mesh) | 99 | 0.4 | 0.4 | 0.1 | |
| Si- (40-325 mesh) | 99 | 0.4 | 0.4 | 0.1 | |
| Silicon powder for refractory material | 150 mesh | 98.5 | 0.5 | 0.5 | 0.3 |
| 200 mesh | 98.5 | 0.5 | 0.5 | 0.3 | |
| 325 mesh | 98.5 | 0.5 | 0.5 | 0.3 | |
| 400 mesh | 98.5 | 0.5 | 0.5 | 0.3 | |
| 500 mesh | 98.5 | 0.5 | 0.5 | 0.3 | |
| Low grade silicon powder | 200 mesh 325 mesh | 97 | Impurity contents≤3.0% | ||
| Product: 553#, 521#, 421#, 3303# | |||||
| Particle size: 20-160mesh, 30-270mesh, 45-710um,200mesh and 325mesh,etc. | |||||
Application
1. Industrial silicon granule & powder is widely used in the production of refractory materials and metallurgical applications due to its high temperature resistance, wear resistance, and oxidation resistance. Some examples of its application are furnace walls, kilns, and kiln furniture.
2. In organic silicon chemical operations, granular & powder silicon metal is a base material used in the synthesis of organic silicon products. It is often used to manufacture silicon monomers, silicone oils, and silicone rubber preservatives. As an additive, this product provides a significant increase in temperature resistance, electrical insulation, corrosion resistance, waterproofness, and many more highly valuable properties.
3. Some of the more valuable applications of silicone metal involve using silicon wafers to produce integrated circuits and other electronics components. The granule & powder undergoes a drawing process, turning it into monocrystalline silicon wafers. High-tech industries are essentially driven by silicon.
4. In the metallurgical casting industry, industrial silicon metal is an additive for nonferrous alloys and alloying agents in silicon steel in order to greatly enhance the hardness of the finished steel products. Silicon granules are also used as a metal reducing agent for modern ceramic alloys, providing additional hardness and heat resistance.
