Silicon metal is used in aluminum alloys and chemical manufacturing.
Silicon metal (Si) is a high-purity (98-99%+) industrial, grey, brittle material produced by reducing silica with carbon in electric arc furnaces. It is a vital raw material for aluminum alloys (improving strength/castability), the chemical industry (silicones), and solar/semiconductor manufacturing. It is also known as a semiconductor and is crucial in modern electronics.
Key Aspects of Silicon Metal:
Production: Produced from quartz/quartzite in submerged arc furnaces.
Main Uses: 40-55% goes into aluminum alloys (automotive/aerospace), with significant demand for solar energy and electronics.
Physical Properties: Melts at 1410°C, has a metallic luster, and acts as a semiconductor.
Market Dynamics: Prices are subject to supply-demand, with recent prices (as of early 2026) around 9,200-10,500 yuan/mt depending on grade.
Major Grades: Common metallurgical grades (553, 441, 3303) differ by iron, aluminum, and calcium content.
