The main alloying elements in high speed steel in order of increasing proportion are
- A. Vanadium, Chromium, tungsten
- B. Tungsten, titanium, vanadium
- C. Chromium, titanium, vanadium
- D. Tungsten, chromium, titanium
Answer: A. Vanadium, Chromium, tungsten
Explanation: Typical 18-4-1 HSS contains 18% Tungsten, 4% Chromium, 1% Vanadium.