Which of the following alloy steels is the most suitable for making gun barrels and projectiles ?
Correct answer: C. Nickel-chrome steel
- A. Tungsten steel
- B. Molybdenum steel
- C. Nickel-chrome steel
- D. Cobalt steel
Explanation
Nickel-chrome steel combines high strength, toughness and hardenability, making it suitable for gun barrels and projectiles. Tungsten and molybdenum steels are important for high-speed and high-temperature applications but are not the usual choice here.
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