Question

austenitic stainless steels contain ____________ as the main alloying ingredient(s).
carbon and nickel
chromium and nickel
aluminum

Explanation:

Austenitic stainless - steels are known for containing chromium and nickel as the main alloying ingredients. Chromium provides corrosion resistance and nickel helps to maintain the austenitic structure at room temperature.

Answer:

B. Chromium and Nickel