Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?
Correct answer: D. Small punches, broaches reamers and springs
- A. Forgings like can shaft, structural steel plate, threading dies and drawing dies
- B. Cutlery, screws, rivets and files
- C. Mandrels, twist drills, small lathe tools and razors
- D. Small punches, broaches reamers and springs
Explanation
Carbon steel containing about 0.9 to 1% carbon is high-carbon steel, which provides high hardness and wear resistance for small punches, broaches, reamers, and springs. Lower-carbon steels are preferred for structural plates and many forgings.
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