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 1 of 2.

Vinay said:   5 years ago
Carbon steel-200 c.
HSS-600 c.
Stalite-900c.
Cemented carbides/cermets-1000c.
Ceramics-1200-1400c.
(2)

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

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

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

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

Saif said:   9 years ago
Yes, it is between 500-600° C.

Aakash kasana said:   9 years ago
900 is the right answer. I am sure in that.

Mrittyunjay Verma said:   8 years ago
600°c is exact temp up to which it can retain a its hardness.

Vijay said:   7 years ago
It will be below 600.

Akash Chowdhury said:   7 years ago
Chip tool interface temp of HSS is 500-600°C.
For Stallite is 1000°C.
ForCemented carbide 800-900°C.


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