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Consider the following statements: Machine tool beds are made using grey cast iron due to 1. high tensile strength and ductility 2. high compressive strength and damping property 3. castability and low cost of production 4. machinability and low material cost Which of the above statements are correct?

Consider the following statements: Machine tool beds are made using grey cast iron due to 1. high tensile strength and ductility 2. high compressive strength and damping property 3. castability and low cost of production 4. machinability and low material cost Which of the above statements are correct? Correct Answer 2, 3 and 4 only

Concept:

Properties of grey cast iron

1. low cost of production

2. low melting point

3. good castability

4. good machinability

5. good wear resistance

6. good damping capacity

7. high compressive strength

8. high thermal conductivity

9. good resistance to atmospheric corrosion

10. notch insensitive

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