Silicon Metal In Stock
Industrial Silicon product specifications
| Garde | Composition | ||||
| Si Content(%) | Impurities(%) | ||||
| Fe | Al | Ca | P | ||
| 1501 | 99.69 | 0.15 | 0.15 | 0.01 | ≤0.004% |
| 1502 | 99.68 | 0.15 | 0.15 | 0.02 | ≤0.004% |
| 1101 | 99.79 | 0.1 | 0.1 | 0.01 | ≤0.004% |
| 2202 | 99.58 | 0.2 | 0.2 | 0.02 | ≤0.004% |
| 2502 | 99.48 | 0.25 | 0.25 | 0.02 | ≤0.004% |
| 3303 | 99.37 | 0.3 | 0.3 | 0.03 | ≤0.005% |
| 411 | 99.4 | 0.4 | 0.1 | 0.1 | ≤0.005% |
| 421 | 99.3 | 0.4 | 0.2 | 0.1 | - |
| 441 | 99.1 | 0.4 | 0.4 | 0.1 | - |
| 551 | 98.9 | 0.5 | 0.5 | 0.1 | - |
| 553 | 98.7 | 0.5 | 0.5 | 0.3 | - |
Metal Silicon
Silicon metal is a gray, shiny semiconducting metal used in making steel, solar cells and microchips. Silicon is the second most abundant element in the Earth's crust (after oxygen) and the eighth most common element in the universe. Nearly 30% of the weight of the Earth's crust can be attributed to silicon.
Elements with atomic number 14 occur naturally in silicate minerals, including silica, feldspar and mica, which are the main components of common rocks such as quartz and sandstone. Silicon is a semimetal (or metalloid) that has some properties of metals and nonmetals.
Like water, but unlike most metals, silicon shrinks when it's liquid and expands when it solidifies. It has a high melting and boiling point and forms a diamond cubic crystal structure when crystallized. Crucial to silicon's role as a semiconductor and its applications in electronics is the element's atomic structure, which includes four valence electrons, allowing silicon to easily combine with other elements.
characteristic
Atomic symbol: Si
Atomic number: 14
Element Category: Metalloids
Density: 2.329g/cm3
Melting point: 2577°F (1414°C)
Boiling point: 5909°F (3265°C)
Mohs hardness: 7
Most of the silicon refined each year (approximately 80%) is produced in the form of ferrosilicon, which is used in iron and steelmaking. Depending on the smelter's requirements, the silicon content of ferrosilicon can range from 15% to 90%.
Alloys of iron and silicon are produced by reduction smelting using ore arc furnaces. Carbon sources such as silica-rich ores and coking coal (metallurgical coal) are crushed and loaded into the furnaces along with scrap iron.
At temperatures in excess of 1900°C (3450°F), the carbon reacts with the oxygen present in the ore to form carbon monoxide gas. At the same time, the remaining iron and silicon combine to form molten ferrosilicon, which can be collected by tapping on the bottom of the furnace. Once cooled and hardened, ferrosilicon can be transported and used directly in steel manufacturing.
The same method, without iron, can be used to produce metallurgical grade silicon with a purity of over 99%. Metallurgical silicon is also used in steel smelting and in the manufacture of aluminum casting alloys and silane chemicals.
Silicon Alloy In Stock
Silicon In Cast Iron In Stock
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