Q. The cast iron when heated to red heat with powdered red haematite in an oven for increasing itstoughness, is converted to (Solved)
1. Grey cast iron
2. White cast iron
3. Mottled cast iron
4. Toughed cast iron
- c. Mottled cast iron
1. Grey cast iron
2. White cast iron
3. Mottled cast iron
4. Toughed cast iron