silicon metal 2202 manufacturer

Metallurgical Material

Description

Silicon metal is silver gray or dark gray powder with metallic luster, which be of high melting point, good heat resistance, high resistivity and superior oxidation resistance, which is an essential basic raw material in hi-tech industry. The classification of silicon metal is usually classified according to the content of iron, aluminum and calcium contained in the silicon metal components. 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.

In industry, silicon metal is usually made by carbon reduction of silicon dioxide in the electric furnace chemical reaction equation: SiO2 + 2C Si + 2CO so that the purity of silicon metal is 97~98%, called silicon metal and then melt it after recrystallization, with acid to remove impurities, the purity of silicon metal is 99.7~99.8%.

Specification

Specification:

Grade	Chemicals Composition(%)
	Si%	Fe%	Al%	Ca%
	≥	≤
3303	99	0.30	0.30	0.03
2202	99	0.20	0.20	0.02
553	98.5	0.50	0.50	0.30
441	99	0.40	0.40	0.10
4502	99	0.40	0.50	0.02
421	99	0.40	0.20	0.10
411	99	0.40	0.10	0.10
1101	99	0.10	0.10	0.01

FAQ
Q: Are you trading company or manufacturer ?
A: We are manufacturer.

Q: What is your production capacity and delivery date ?
A: 3500MT/month. We can delivery the goods within 15-20days after signing the contract.

Q:How to make sure the quality is good ?
A: We have our own lab in factory ,have testing result for every lot of silicon metal ,when cargo arriving the loading port ,we sample and test the Fe and Ca content again ,the third party inspection will be also arranged according to the buyers' request .

Q: Can you supply the special size and packing?
A:Yes, we can supply the size according to buyers’request.

Q: Can you provide samples?
A:Yes, we can provide samples.