Introduction
Silicon metal, also known as crystalline silicon or industrial silicon, is primarily used as an additive in non – iron – based alloys. Silicon metal is a product of quartz and coke smelting in the electric furnace, the main component of silicon element content is about 98% (in recent years, 99.99% Si content is also included in silicon metal), the remaining impurities are iron, aluminum, calcium, etc.
Classification
The classification of silicon metal is usually based on the content of the three main impurities, iron, aluminum and calcium, contained in the silicon metal composition. According to the content of iron, aluminum and calcium in silicon metal, silicon metal can be divided into 553, 441, 411, 421, 3303, 3305, 2202, 2502, 1501, 1101 and other different brands
Chemical Composition(%)
