what is the composition of grey cast iron grade 20?
Answer Posted / 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%
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