For hardening alloy steels and high speed steels, they are heated to
Question: For hardening alloy steels and high speed steels, they are heated to [A]. 500 to 600°C [B]. 700 to 900°C [C]. 1100 to 1300°C [D]. 1300 to 1500°C Answer: Option C Explanation: No answer description available for this question.