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what is the composition of grey cast iron grade 20?

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what is the composition of grey cast iron grade 20?..

Answer / karthikeyan.a

Carbon : 3.10 - 3.25%
Silicon : 1.75-1.95%
Manganese : 0.50 - 0.7%
Sulphur : 0.05 - 0.07%
Phosporous : 0.04 - 0.07%

Is This Answer Correct ?    18 Yes 4 No

what is the composition of grey cast iron grade 20?..

Answer / m.ramamoorthy

cabon 3.2 to 3.5 %
si 1.9 to 2.2%
mn 0.5 to 0.7%
s 0.06%
p 0.09%

Is This Answer Correct ?    1 Yes 0 No

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