silicon metal

silicon metal

  • Specifications: 553/441/3303/2202/1101 .etc
  • Shape: Silicon metal lumps
  • Usage: Aluminum industry
  • Particle size: 10-100mm
  • Packaging: Ton bags
Quote Today! Leave Message

Silicon metal, also known as industrial silicon, metallic silicon. It is a trade name that appeared in the mid-1960s. Silicon metal composition includes silicon, iron, aluminum, calcium, and the like. The content of silicon element is above 98% .

According to the content of Fe, Al and Ca in metallic silicon, the grades of metallic silicon can be divided into 553, 441, 3303, 2202, etc.

Silicon metal specifications

Grade Si Fe Al Ca P
553 98.50 0.50 0.50 0.30 -
441 99.00 0.40 0.40 0.10 -
3303 99.00 0.30 0.30 0.03 25/40/60
2202 99.00 0.20 0.20 0.02 25/40/60
1101 99.20 0.10 0.10 0.01 25
Off grade 97.00 1.50 0.60 0.30  
  %min. %max. %max. %max. ppm
Both size and packing can be customized as clients’ requests

Silicon metal production process

Silicon metal is produced by the carbothermic reduction-smelting process, in which silica is reduced by carbon in a submerged arc furnace at temperatures between 1300 and 2000°C under atmospheric pressure. The charge materials include a silicon source (quartz, sand, or quartzite) and a typical reductant blend comprising coke, coal, charcoal, and wood chips.

After smelting, silicon metal will go through the stages of cooling, crushing, packaging, etc., and finally packaged and transported to the customer.

silicon metal production process

Silicon metal applications

  • Silicon metal for aluminium industry. Aluminum alloy ingot production, as additive of silicon content.
  • Dioxidizer in steelmaking as replacement of ferrosilicon.
  • As raw materials to produce poly-crystalline silicon.

NingXia Darshan Alloy industry co.,Ltd is a professional silicon metal manufacturer and producer. We have our own silicon metal factory. Metal silicon prices is very competitive. If you have any needs ,please contact us!

Send Us Inquiry