Grade

Chemical  Composition (%)

Si

Al

Ca

P

S

C

Fe

MAX

FeSi75-A

74.0-80.0

1.5

1

0.035

0.02

0.2

Balance

FeSi75-B

72.0-80.0

1.5

1

0.04

0.02

0.2

Balance

FeSi72

72

1.5

1

0.04

0.02

0.2

Balance

FeSi70

70

1.5

1

0.04

0.02

0.2

Balance

FeSi65

65.0-72.0

2

1

0.04

0.02

0.2

Balance

FeSi45

40.0-47.0

2

2

0.04

0.02

0.2

Balance