Mechanical Engineering - Production Engineering - Discussion

Discussion Forum : Production Engineering - Section 3 (Q.No. 24)
24.
High speed steel tools retain their hardness upto a temperature of
250°C
350°C
500°C
900°C
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 2 of 2.

Saifi said:   9 years ago
I think 500 - 600°C is correct.

Dragon said:   9 years ago
I think 500 is the correct answer.

Deepak Pawar said:   9 years ago
900 celsius is the correct answer.

Balram sahu said:   10 years ago
Its not 900, has can retain hardness upto 500-600 Celsius.


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