Which of the following has the highest modulus of elasticity (about 7 x 10^6 kg/cm2) ?
Correct answer: A. Tungsten carbide
- A. Tungsten carbide
- B. Stainless steel
- C. High speed steel
- D. Superalloys
Explanation
Tungsten carbide has a very high elastic modulus, approximately 7 × 10^6 kg/cm², making it much stiffer than steels and superalloys. Modulus of elasticity measures resistance to elastic deformation, not hardness alone.
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