Q187
Grey cast iron
A.
Contains 1.7 to 3.5% carbon in Free State and is obtained by the slow cooling of molten cast iron
AnswerB.
Is also known as chilled cast iron is obtained by cooling rapidly
C.
Is produced by annealing process. It is soft, tough and easily machined metal
D.
Is produced by small additions of magnesium or cerium in the ladle Graphite is in nodular or spheroidal form and is well dispersed throughout the material
Answer: Option A
Solution
Answer: Option A
Solution:
Grey cast iron Contains 1.7 to 3.5% carbon in Free State and is obtained by the slow cooling of molten cast iron.