Which are the other materials added to cast iron in the manufacturing of piston ring?(a) Aluminum and phosphorus(b) Silicon and aluminum(c) Silicon and manganese(d) Cadmium and phosphorusI have been asked this question during an interview.The above asked question is from Engine Components in division Basic Engine Components of Automotive Engine Design

Which are the other materials added to cast iron in the manufacturing

1.	Which are the other materials added to cast iron in the manufacturing of piston ring?(a) Aluminum and phosphorus(b) Silicon and aluminum(c) Silicon and manganese(d) Cadmium and phosphorusI have been asked this question during an interview.The above asked question is from Engine Components in division Basic Engine Components of Automotive Engine Design
Answer» Correct choice is (c) Silicon and manganese The explanation: The material that is generally USED for the PISTON ring is fine-grained ALLOY cast iron CONTAINING silicon and manganese. It has good heat and wear-resisting qualities. There are two types of iron alloy in use they are gray cast iron and ductile iron.

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