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  Silicon  
  Silicon is present in the sun and stars and is a principal component of a class of meteorites known as aerolites. Silicon makes up 25.7% of the earth's crust by weight, and is the second most abundant element, exceeded only by oxygen.

The Si materials Dlrow deals with:

Silicon metal

Grade

Chemical analysis(%)

Si (Min.)

Fe (Max.)

Al (Max.)

Ca (Max.)

Si-441

99.0

0.40

0.40

0.10

Si-553

98.5

0.50

0.50

0.30

Ferro silicon

Grade

Si

Al

Ca

Mn

Cr

P

S

C

 

(% Max)

FeSi75-A

74.0-80.0

　2.0

　1.0

0.4

0.3

0.04

0.02

0.1

FeSi75-B

74.0-80.0

　1.5

　1.0

0.4

0.3

0.04

0.02

0.1

Ferro silicon calcium

Grade

Chemical analysis  ( % )

Ca

Si

C

Al

P

S

(% Min)

 

(% Max)

Ca31Si60

31

55-65

0.8

2.0

0.04

0.05

Ca28Si60

28

55-65

0.8

2.0

0.04

0.05

Ca24Si60

26

55-65

0.8

2.0

0.04

0.05


 
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