Metallurgical Grade Silicon Metal
Unlike chemical grade silicon metal, metallurgical grade silicon metal has the largest usage, accounting for 92% of the global silicon metal production. Metallurgical grade silicon metal has seen significant development and application in industries such as steel, non-ferrous metals, and aluminum products. Due to its excellent properties, it has become a very important metallurgical material.
What is Metallurgical Grade Silicon Metal?
Metallurgical grade silicon metal is a non-ferrous alloy raw material rich in silicon, with a silicon content ranging from 95% to 99.5%. Metallurgical grade silicon metal is not a metal; its chemical composition mainly consists of silicon (Si), iron (Fe), aluminum (Al), and calcium (Ca). It typically appears as gray blocks with a metallic luster and can be processed to produce silicon metal grain and silicon metal powder for various applications.
Grades of Metallurgical Grades Silicon Metal
To distinguish different metallurgical grade silicon metal, it is necessary to classify it based on silicon content. Main common grades are: silicon metal 441, silicon metal 553 and silicon metal 2202. XLS Metals can customize the production of silicon metal according to users' different needs and is currently a leading supplier of silicon metal. To facilitate users' understanding, we have prepared the following table that details the classification of grades of metallurgical grade silicon metal.
| Grades | Specifications | |||
| Chemical composition(%) | ||||
| Si | Fe | Al | Ca | |
| Min | Max | |||
| Silicon Metal 553 | 98.5 | 0.5 | 0.5 | 0.3 |
| Silicon Metal 441 | 99.0 | 0.4 | 0.4 | 0.1 |
| Silicon Metal 421 | 99.0 | 0.4 | 0.2 | 0.1 |
| Silicon Metal 3303 | 99.0 | 0.3 | 0.3 | 0.03 |
| Silicon Metal 2202 | 99.0 | 0.2 | 0.2 | 0.02 |
| Silicon Metal 1101 | 99.0 | 0.1 | 0.1 | 0.01 |
| Off grade silicon | 96.0 | 2.0 | 1.0 | 0.5 |
| Size:1-10mm, 3-8mm, 10-50mm, 10-100mm, 200 mesh, 325 mesh, | ||||
Uses of Metallurgical Grade Silicon Metal
Aluminum alloy manufacturing: During aluminum refining, adding silicon metal for aluminum can enhance the strength, corrosion resistance, and castability of aluminum alloys.
Steel smelting: In the steel smelting process, metallurgical grade silicon metal serves as a deoxidizer, helping to remove oxygen from molten steel and improve its quality.
Silicon-iron alloys: Metallurgical grade silicon metal is an important raw material in producing silicon-iron alloys, which are widely used in the steel industry to improve the mechanical properties of steel.
Chemical industry: Used to produce silicates, silanes, and other chemicals, it finds extensive applications in coatings, ceramics, and glass industries.
Battery materials: As an additive in lithium batteries, it enhances the performance and capacity of the batteries.
Semiconductor and photovoltaic industries: Although the purity of metallurgical grade silicon metal is not as high as that of chemical grade silicon metal, it can still be used in the production of certain low-cost semiconductor materials and solar cells.
Refractory materials: Metallurgical grade silicon metal can be used to produce refractory bricks and heat-resistant materials, playing an important role in high-temperature industries.
XLS Metals Metallurgical Grade Silicon Metal
XLS Metals provides high-purity metallurgical grade silicon metal products to global users, widely used in aluminum refining, casting, metallurgy, photovoltaic, and silicon products industries. With advanced production equipment and facilities, as well as an independent R&D laboratory, it is a high-tech manufacturer integrating R&D and production. XLS Metals offers 24-hour online service, with a professional technical team ready to assist with any issues users may encounter. XLS Metals is a company that emphasizes product quality and customer service, dedicated to the production and R&D of metallurgical grade silicon metal for many years, and is well-regarded in the industry for its reliable quality and thoughtful service.
