Silicon metal, also known as crystalline silicon or industrial silicon, is a lustrous, grayish to dark grayish solid with the chemical symbol Si in its elemental form. It is produced from the reduction of silica (silicon dioxide) in electric arc furnaces using carbon materials such as charcoal, woodchips, or coal.
High purity (typically over 98% pure Si)
Brittle and crystalline structure
High thermal conductivity
Low electrical conductivity
Resistant to high temperatures and acidic environments
Readily forms alloys with other metals
Silicon metal is used across various industries and applications, such as:
Aluminum alloying: Enhancing strength, castability, and corrosion resistance
Electronics and solar energy: Manufacturing of solar panels and semiconductor devices
Chemical industry: A precursor in the production of silicones, silanes, and silicon-based polymers
Steel industry: Deoxidizing molten steel and refining high-grade steel
Metallurgical industry: Production of ferrosilicon, silicon nitride, and other silicon-based alloys
In 2023, the global market demand for silicon metal is projected to reach 3.5 million tons, achieving a year-on-year growth rate of around 7%. This growth is primarily driven by the expanding aluminum, solar energy, and electronics industries, as well as increasing demand for specialized alloys in various sectors.
Silicon metal is expected to account for approximately 40% of the overall market share for metallurgical-grade silicon production in 2023. This significant market share demonstrates the wide-ranging applications and importance of silicon metal in various industries.
Price trends of silicon metal are anticipated to remain stable, although a modest upward trajectory may occur due to fluctuations in raw material costs, energy prices, and increasing production expenses. Nevertheless, market competition, technological advancements, and improvements in manufacturing processes may help offset cost pressures.
Major global suppliers of silicon metal include:
Ferroglobe (USA)
Elkem (Norway)
Rusal (Russia)
Wacker Chemie (Germany)
Globe Specialty Metals (USA)
Silicon metal's growing market demand highlights its significance in various applications and industries, particularly aluminum alloys, solar energy, and semiconductors. To maintain a competitive edge, suppliers and manufacturers must stay abreast of market trends, technological innovations, and evolving customer requirements within the industry.