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Reference Tables -- Compositions for Typical Cast Irons
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Range of Compositions for Typical Unalloyed Cast Irons
(Values in Percent (%))

Type of
Iron

Carbon

Silicon

Manganese

Sulfur

Phosphorus

Gray

2.5 - 4.0

1.0 - 3.0

0.2 - 1.0

0.02 - 0.25

0.02 - 1.0

Ductile

3.0 - 4.0

1.8 - 2.8

0.1 - 1.0

0.01 - 0.03

0.01 - 0.1

Compacted Graphite

2.5 - 4.0

1.0 - 3.0

0.2 - 1.0

0.01 - 0.03

0.01 - 0.1

Malleable
(Cast White)

2.0 - 2.9

0.9 - 1.9

0.15 - 1.2

0.02 - 0.2

0.02 - 0.2

White

1.8 - 3.6

0.5 - 1.9

0.25 - 0.8

0.06 - 0.2

0.06 - 0.2


 

 

 

 

 

 

 

 


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