Question

A steel with 0.8% carbon and 100% pearlite is called-

• A. Pro eutectoid steel
• B. Hypo-eutectoid steel
• C. Eutectoid steel
• D. Hyper eutectoid steel

Answer 1

Answer:

C. Eutectoid steel

Steel with 0.8% carbon and 100% pearlite is known as eutectoid steel. It is much stronger than ferrite or cementite. Hypo-eutectoid steel has less than 0.8% carbon while hyper- eutectoid steel has more than 0.8% carbon. Steel with carbon composition up to 2.1% is considered as steel and beyond this, it is considered as cast iron.