Q219
Tungsten in high speed steel provides
A.
Hot hardness
AnswerB.
Toughness
C.
Wear resistance
D.
Sharp cutting edge
Answer: Option A
Solution
Answer: Option A
Solution:
Tungsten is a good carbide former that prevents grain growth, enhances toughness and increases red hardness and high temperature strength. Tungsten is used in hot forming tool steels and high-speed steels.