Mechanical Engineering - Machine Design - Discussion

Discussion Forum : Machine Design - Section 3 (Q.No. 19)
19.
For hardening alloy steels and high speed steels, they are heated to
500 to 600°C
700 to 900°C
1100 to 1300°C
1300 to 1500°C
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Shaikh sohel said:   6 years ago
800 to 900 celsius should be the correct one.

SAGAR said:   7 years ago
The Right answer is 1100 to 1300°C.

Arshad hussain said:   8 years ago
The right answer is option D. Ref: RS Khurmi.

Nkp said:   1 decade ago
Hardening temperature of alloy steel is 850-880°C.

Post your comments here:

Your comments will be displayed after verification.