High Temp Chemical Silicon Metal Si - 421 , Industrial Monosodium Glutamate
Silicon Metal
Details information
Silicon metal is a grey and lustrous semi-conductive metal that is used to manufacture steel, solar cells, and microchips. Silicon is the second most abundant element in the earth's crust (behind only oxygen) and the eighth most common element in the universe. In fact, nearly 30 percent of the weight of the earth's crust can be attributed to silicon.
The element with atomic number 14 naturally occurs in silicate minerals, including silica, feldspar, and mica, which are major components of common rocks such as quartz and sandstone. A semi-metal (or metalloid), silicon possesses some properties of both metals and non-metals.
Like water - but unlike most metals - silicon contracts in its liquid state and expands as it solidifies. It has relatively high melting and boiling points, and when crystallized forms a diamond cubic crystal structure. Critical to silicon's role as a semiconductor and its use in electronics is the element's atomic structure, which includes four valence electrons that allow silicon to bond with other elements readily.
Physical And Chemical Properties
Silicon Metal
| Brand | Chemical Composition % | |||
| Si ≥ | Fe≤ | Al≤ | Ca≤ | |
| Si-2202 | 99.5 | 0.2 | 0.2 | 0.02 |
| Si-3303 | 99.3 | 0.3 | 0.3 | 0.03 |
| Si-411 | 99.3 | 0.4 | 0.1 | 0.1 |
| Si-421 | 99.2 | 0.4 | 0.2 | 0.1 |
| Si-441 | 99.0 | 0.4 | 0.4 | 0.1 |
| Si-553 | 98.5 | 0.5 | 0.5 | 0.3 |
Silicon Metal Powder
| Refractory Industry | ||||
| 150mesh | 98 | 0.6 | 0.4 | 0.2 |
| 200mesh | 99 | 0.3 | 0.2 | 0.1 |
| 325mesh | 99 | 0.4 | 0.3 | 0.2 |
| 400mesh | 98.5 | 0.5 | 0.3 | 0.2 |
| 600mesh | 98.2 | 0.4 | 0.4 | 0.2 |
| Low-grade | ||||
| 200mesh | 97 | 3 | ||
Applications:
* Industrial Silicon Metal powder is sublimated into monocrystalline silicon, which is widely used
in highttech field as an essential raw material for integrated circuit and electronic
element.
* Silicon Metal powder is regarded as alloy additive, improve the steel hardenability
in metallurgy and foundry industry.
* Silicon Metal are used in high-temperature material production in order to manufacture enamels and
pottery. These also cater the demands of semiconductor industry by producing ultra-pure
silicon wafers.
* Silicon Metal is widely used in smelting alloy elements,as a reducing agent in many kinds of
metal smelting.
* Silicon metal is widely applied to refractory material and power metallurgy industry to
improve the heat resistance, wear resistance and oxidation resistance.
Package:
1 ) . In 1MT/1.25MT Big Bag
2 ) . 25kg PVC bag+1 MT big bag
3 ) . 25KG PP Big Bag In 1MT Big Bag Or on pallet
According To Customers' Reauirement.
FAQ:
Q : What is your lead time?
A : It usually needs about 7-14 days after receiving the workable payment.
Q : Do you provide free samples?
A : Of course! Customized samples are needed. The mass production will be started after we get your confirmation on this sample. However, shipping costs are paid by you.
Q : What is your payments term?
A : We can accept 30% deposit, 70% balance to be against the BL copy or by LC, or other payment terms.
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