metallurgical grade silicon metal
Metal silicon, also known as crystalline silicon or industrial silicon, is mainly used as an additive to non-ferrous based alloys. The content of the main component silicon element is about 98%, and the remaining impurities are iron, aluminum, calcium, and the like.
Metal silicon is a product smelted from quartz and coke in an electric furnace. The reaction equation is
(Silica/quartz) SiO2 + (Coke/Petroleum Coke/Charcoal) 2C → (Metal Silicon) Si + (Carbon Monoxide) 2CO
Metal silicon is widely used for metallurgical deoxidation, aluminum alloy, and polysilicon and single crystal silicon. It is also used to make high-purity semiconductors, high temperature resistant materials, optical fiber communication materials, and organosilicon compounds. It is widely used in aerospace, electrical and electronics, construction, transportation, energy, chemical, textile, food, light industry, medical, agriculture, etc. industries.
|Model No.||Chemical Composition %|
|Si ≥||Impurity ≤|
|Silicon Metal 1101||99.7||0.1||0.1||0.01|
|Silicon Metal 2202||99.5||0.2||0.2||0.02|
|Silicon Metal 3303||99.3||0.3||0.3||0.03|
|Silicon Metal 441||99.0||0.4||0.4||0.1|
|Silicon Metal 421||99.0||0.4||0.2||0.1|
|Silicon Metal 553||99.0||0.4||0.1||0.1|
|Off-Grade Silicon Metal||96.0||2.0||1.0||1.0|
Chemical silicon refers to industrial silicon used for chemical processing, such as silicone, and metallurgical silicon refers to industrial silicon used for metallurgical preparation of various alloys such as aluminum silicon.
Among them, the external silicon such as 553/441/3303/2202/1101/ and off grade silicon metal are metallurgical grade metal silicon. 521/5203/421/411 is a chemical grade metal silicon.