Cast irons are generally specified by their
A. Carbon content
B. Tensile strength
C. Hardness
D. Manufacturing proces
Answer: Option B
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Your ans is correct ,, tensile strength vary from 500 to 840MPa ,,and nodular cast iron has high tensile strength
The irons like white cast-iron ,grey cast-iron ,chilled cast-iron are generally specified by the temp diff at where they extract and by heat treatment also but how can you say that they are specified by tensile strength